Misha is happy now

This patch break random redstone farm
We want kaiiju to be as vanilla as possible
And to respect every end user
So here is a toggle.

.github/workflows/build.yml

@@ -1,20 +1,22 @@
 name: Generate Jars
 on: [ push, pull_request ]
 env:
-  version: '1.19.3'
-  branch: ver/1.19.3
+  version: '1.20.1'
+  branch: ver/1.20.1
 jobs:
   paperclip:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Git Repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - name: Set up JDK
-        uses: actions/setup-java@v2.5.0
+        uses: graalvm/setup-graalvm@v1
         with:
           java-version: '17'
           cache: 'gradle'
-          distribution: 'temurin'
+          distribution: 'graalvm'
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          version: 'latest'
       - name: Configure Git User Details
         run: |
             git config --global user.email "actions@github.com" && git config --global user.name "Github Actions"

.github/workflows/release.yml

@@ -1,20 +1,22 @@
 name: Release Jars
-on: workflow_dispatch
+on: [push, workflow_dispatch]
 env:
-  version: '1.19.3'
-  branch: ver/1.19.3
+  version: '1.20.1'
+  branch: ver/1.20.1
 jobs:
   paperclip:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Git Repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - name: Set up JDK
-        uses: actions/setup-java@v2.5.0
+        uses: graalvm/setup-graalvm@v1
         with:
           java-version: '17'
           cache: 'gradle'
-          distribution: 'temurin'
+          distribution: 'graalvm'
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          version: 'latest'
       - name: Configure Git User Details
         run: |
             git config --global user.email "actions@github.com" && git config --global user.name "Github Actions"

.github/workflows/upstream.yml

@@ -1,4 +1,4 @@
-name: Update Upstream (Purpur)
+name: Update Upstream (Folia)
 
 on:
   schedule:
@@ -7,9 +7,7 @@ on:
 
 jobs:
   upstream:
-
     runs-on: ubuntu-latest
-
     steps:
       - name: Checkout Git Repository
         uses: actions/checkout@v2
@@ -22,7 +20,7 @@ jobs:
       - name: Configure Git User Details
         run: git config --global user.email "actions@github.com" && git config --global user.name "Github Actions"
       - name: Update Upstream Commit Hash
-        run: ./gradlew purpurRefLatest --stacktrace
+        run: ./gradlew foliaRefLatest --stacktrace
       - name: Apply Patches
         run: ./gradlew applyPatches --stacktrace
       - name: Build Paperclip jar
@@ -37,8 +35,8 @@ jobs:
       - name: Create Pull Request
         uses: peter-evans/create-pull-request@v3
         with:
-          commit-message: Update Upstream (Purpur)
+          commit-message: Update Upstream (Folia)
           branch: update-upstream
           delete-branch: true
-          title: 'Update Upstream (Purpur)'
+          title: 'Update Upstream (Folia)'
           body: ''

README.md

@@ -1,9 +1,7 @@
-
 <div align="center">
   <img src="https://github.com/kugge/Kaiiju/blob/ver/1.19.3/logo.png?" width="32%" height="32%"/>
   <h1>Kaiiju</h1>
-  <h3>A Server Software Designed For Anarchy</h3>
-  <h4>❗ [ Warning ] Work in progress, contributions are welcome ❗</h4>
+  <h3>Folia fork, designed for vanilla/anarchy servers</h3>
 
   [![License](https://img.shields.io/github/license/kugge/Kaiiju?style=for-the-badge&logo=github)](LICENSE)
   [![GitHub Workflow Status](https://img.shields.io/github/actions/workflow/status/kugge/Kaiiju/build.yml?style=for-the-badge)](https://github.com/kugge/Kaiiju/actions)
@@ -13,12 +11,58 @@
 
 ## Features
 
-### Additions
-- **Xymb Linear Format**: Saves about 50% of disk space in OW and Nether and 95% in The End.
-- **Lobotomize**: Lobotomize mobs and villagers without breaking vanilla mechanics.
+### Primary
+- **Xymb Linear Format**: Saves about 50% of disk space in OW/Nether and 95% in The End.
+- **Auto update**: Automatic upstream updates.
+
+### Notable
+- **Entity throttling & removal**: Tweak entity tick frequency & max entity per region.
+- **Technical Minecraft**: Enable Vanilla exploits such as sand duping, RNG manipulation...
+
+### Configuration
+
+```yaml
+network:
+  send-null-entity-packets: true
+  alternate-keepalive: false
+optimization:
+  disable-vanish-api: false
+  disable-player-stats: false
+  disable-arm-swing-event: false
+  disable-ensure-tick-thread-checks: false
+gameplay:
+  server-mod-name: Kaiiju
+  shared-random-for-players: true
+world-settings:
+  default:
+    region-format:
+      format: ANVIL
+      linear:
+        compression-level: 1
+        crash-on-broken-symlink: true
+    optimization:
+      shulker-box-drop-contents-when-destroyed: true
+      enable-entity-throttling: false
+      disable-achievements: false
+      disable-creatures-spawn-events: false
+      disable-dolphin-swim-to-treasure: false
+    gameplay:
+      fix-void-trading: true
+      optimize-hoppers: true
+      tick-when-empty: true
+      break-redstone-on-top-of-trap-doors-early: true
+      fix-tripwire-state-inconsistency: true
+      safe-teleportation: true
+      sand-duplication: false
+```
+Documentation: [Kaiiju Wiki](https://github.com/KaiijuMC/Kaiiju/wiki/Configuration)
+
+### Roadmap
+- **Static view distance**: Reduce RAM usage / Region size with a "static" view distance.
+- **Native world conversion**: Convert region file format at startup.
+- **Stash deduplication**: Make giant dupe stashes possible and lagless.
 
 ## Building
-In order to distribute and use this server software, you need a paperclip file:
 
 ```bash
 ./gradlew applyPatches # Apply Kaiiju patches
@@ -26,7 +70,4 @@ In order to distribute and use this server software, you need a paperclip file:
 ```
 
 ## License
-Patches are licensed under GPL-3.0.  
-All other files are licensed under MIT.
-
-Made with <span style="color: #e25555;">&#9829;</span> on Earth.
+Original patches are licensed under GPL-3.0.

build.gradle.kts

@@ -3,26 +3,12 @@ import io.papermc.paperweight.util.constants.*
 
 plugins {
     java
-    id("com.github.johnrengelman.shadow") version "7.1.2"
-    id("io.papermc.paperweight.patcher") version "1.4.1"
-}
-
-repositories {
-    mavenCentral()
-    maven("https://papermc.io/repo/repository/maven-public/") {
-        content { onlyForConfigurations(PAPERCLIP_CONFIG) }
-    }
-}
-
-dependencies {
-    remapper("net.fabricmc:tiny-remapper:0.8.6:fat")
-    decompiler("net.minecraftforge:forgeflower:2.0.605.1")
-    paperclip("io.papermc:paperclip:3.0.2")
+    id("com.github.johnrengelman.shadow") version "8.1.1"
+    id("io.papermc.paperweight.patcher") version "1.5.4"
 }
 
 allprojects {
     apply(plugin = "java")
-    apply(plugin = "maven-publish")
 
     java {
         toolchain {
@@ -31,8 +17,25 @@ allprojects {
     }
 }
 
+val paperMavenPublicUrl = "https://repo.papermc.io/repository/maven-public/"
+
+repositories {
+    mavenCentral()
+    maven(paperMavenPublicUrl) {
+        content {
+            onlyForConfigurations(PAPERCLIP_CONFIG)
+        }
+    }
+}
+
+dependencies {
+    remapper("net.fabricmc:tiny-remapper:0.8.6:fat")
+    decompiler("net.minecraftforge:forgeflower:2.0.629.0")
+    paperclip("io.papermc:paperclip:3.0.3")
+}
+
 subprojects {
-    tasks.withType<JavaCompile> {
+    tasks.withType<JavaCompile>().configureEach {
         options.encoding = Charsets.UTF_8.name()
         options.release.set(17)
     }
@@ -42,15 +45,9 @@ subprojects {
     tasks.withType<ProcessResources> {
         filteringCharset = Charsets.UTF_8.name()
     }
-
     repositories {
         mavenCentral()
-        maven("https://oss.sonatype.org/content/groups/public/")
-        maven("https://papermc.io/repo/repository/maven-public/")
-        maven("https://ci.emc.gs/nexus/content/groups/aikar/")
-        maven("https://repo.aikar.co/content/groups/aikar")
-        maven("https://repo.md-5.net/content/repositories/releases/")
-        maven("https://hub.spigotmc.org/nexus/content/groups/public/")
+        maven(paperMavenPublicUrl)
         maven("https://jitpack.io")
     }
 }
@@ -58,15 +55,15 @@ subprojects {
 paperweight {
     serverProject.set(project(":kaiiju-server"))
 
-    remapRepo.set("https://maven.fabricmc.net/")
-    decompileRepo.set("https://maven.quiltmc.org")
+    remapRepo.set(paperMavenPublicUrl)
+    decompileRepo.set(paperMavenPublicUrl)
 
-    useStandardUpstream("Purpur") {
-        url.set(github("PurpurMC", "Purpur"))
-        ref.set(providers.gradleProperty("purpurRef"))
+    useStandardUpstream("Folia") {
+        url.set(github("PaperMC", "Folia"))
+        ref.set(providers.gradleProperty("foliaRef"))
         
         withStandardPatcher {
-            baseName("Purpur")
+            baseName("Folia")
 
             apiPatchDir.set(layout.projectDirectory.dir("patches/api"))
             apiOutputDir.set(layout.projectDirectory.dir("kaiiju-api"))
@@ -75,36 +72,35 @@ paperweight {
             serverOutputDir.set(layout.projectDirectory.dir("kaiiju-server"))
         }
     }
+}
 
-    tasks.register("purpurRefLatest") {
-        // Update the paperRef in gradle.properties to be the latest commit.3
-        val tempDir = layout.cacheDir("purpurRefLatest");
-        val file = "gradle.properties";
+tasks.register("foliaRefLatest") {
+    // Update the foliaRef in gradle.properties to be the latest commit.
+    val tempDir = layout.cacheDir("foliaRefLatest");
+    val file = "gradle.properties";
         
-        doFirst {
-            data class GithubCommit(
-                    val sha: String
-            )
+    doFirst {
+        data class GithubCommit(
+                val sha: String
+        )
 
-            val purpurLatestCommitJson = layout.cache.resolve("purpurLatestCommit.json");
-            download.get().download("https://api.github.com/repos/PurpurMC/Purpur/commits/ver/1.19.3", purpurLatestCommitJson);
-            val purpurLatestCommit = gson.fromJson<paper.libs.com.google.gson.JsonObject>(purpurLatestCommitJson)["sha"].asString;
+        val foliaLatestCommitJson = layout.cache.resolve("foliaLatestCommit.json");
+        download.get().download("https://api.github.com/repos/PaperMC/Folia/commits/master", foliaLatestCommitJson);
+        val foliaLatestCommit = gson.fromJson<paper.libs.com.google.gson.JsonObject>(foliaLatestCommitJson)["sha"].asString;
 
-            copy {
-                from(file)
-                into(tempDir)
-                filter { line: String ->
-                    line.replace("purpurRef = .*".toRegex(), "purpurRef = $purpurLatestCommit")
-                }
-            }
-        }
-
-        doLast {
-            copy {
-                from(tempDir.file("gradle.properties"))
-                into(project.file(file).parent)
+        copy {
+            from(file)
+            into(tempDir)
+            filter { line: String ->
+                line.replace("foliaRef = .*".toRegex(), "foliaRef = $foliaLatestCommit")
             }
         }
     }
-}
 
+    doLast {
+        copy {
+            from(tempDir.file("gradle.properties"))
+            into(project.file(file).parent)
+        }
+    }
+}

gradle.properties

@@ -1,9 +1,10 @@
 group = dev.kaiijumc.kaiiju
-version = 1.19.3-R0.1-SNAPSHOT
-mcVersion = 1.19.3
+version = 1.20.1-R0.1-SNAPSHOT
+mcVersion = 1.20.1
 
-purpurRef = 08aa4dccaad7e5d31ca51b53489d2d413e49748d
+foliaRef = 7c6e2514d2ecd9f5f7db911aab29bfe7f373eb9e
 
 org.gradle.caching=true
 org.gradle.parallel=true
 org.gradle.vfs.watch=false
+org.gradle.jvmargs=-Xmx4G -Dfile.encoding=UTF-8 -Dgraal.UsePriorityInlining=true -Dgraal.Vectorization=true -Dgraal.OptDuplication=true -Dgraal.SpeculativeGuardMovement=true -Dgraal.WriteableCodeCache=true

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.4.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.1-bin.zip
+networkTimeout=10000
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -1,7 +1,7 @@
-#!/usr/bin/env sh
+#!/bin/sh
 
 #
-# Copyright 2015 the original author or authors.
+# Copyright © 2015-2021 the original authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -17,67 +17,98 @@
 #
 
 ##############################################################################
-##
-##  Gradle start up script for UN*X
-##
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
 ##############################################################################
 
 # Attempt to set APP_HOME
+
 # Resolve links: $0 may be a link
-PRG="$0"
-# Need this for relative symlinks.
-while [ -h "$PRG" ] ; do
-    ls=`ls -ld "$PRG"`
-    link=`expr "$ls" : '.*-> \(.*\)$'`
-    if expr "$link" : '/.*' > /dev/null; then
-        PRG="$link"
-    else
-        PRG=`dirname "$PRG"`"/$link"
-    fi
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
 done
-SAVED="`pwd`"
-cd "`dirname \"$PRG\"`/" >/dev/null
-APP_HOME="`pwd -P`"
-cd "$SAVED" >/dev/null
 
-APP_NAME="Gradle"
-APP_BASE_NAME=`basename "$0"`
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
-MAX_FD="maximum"
+MAX_FD=maximum
 
 warn () {
     echo "$*"
-}
+} >&2
 
 die () {
     echo
     echo "$*"
     echo
     exit 1
-}
+} >&2
 
 # OS specific support (must be 'true' or 'false').
 cygwin=false
 msys=false
 darwin=false
 nonstop=false
-case "`uname`" in
-  CYGWIN* )
-    cygwin=true
-    ;;
-  Darwin* )
-    darwin=true
-    ;;
-  MINGW* )
-    msys=true
-    ;;
-  NONSTOP* )
-    nonstop=true
-    ;;
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
 esac
 
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
@@ -87,9 +118,9 @@ CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 if [ -n "$JAVA_HOME" ] ; then
     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
         # IBM's JDK on AIX uses strange locations for the executables
-        JAVACMD="$JAVA_HOME/jre/sh/java"
+        JAVACMD=$JAVA_HOME/jre/sh/java
     else
-        JAVACMD="$JAVA_HOME/bin/java"
+        JAVACMD=$JAVA_HOME/bin/java
     fi
     if [ ! -x "$JAVACMD" ] ; then
         die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
@@ -98,7 +129,7 @@ Please set the JAVA_HOME variable in your environment to match the
 location of your Java installation."
     fi
 else
-    JAVACMD="java"
+    JAVACMD=java
     which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 
 Please set the JAVA_HOME variable in your environment to match the
@@ -106,80 +137,109 @@ location of your Java installation."
 fi
 
 # Increase the maximum file descriptors if we can.
-if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
-    MAX_FD_LIMIT=`ulimit -H -n`
-    if [ $? -eq 0 ] ; then
-        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
-            MAX_FD="$MAX_FD_LIMIT"
-        fi
-        ulimit -n $MAX_FD
-        if [ $? -ne 0 ] ; then
-            warn "Could not set maximum file descriptor limit: $MAX_FD"
-        fi
-    else
-        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
-    fi
-fi
-
-# For Darwin, add options to specify how the application appears in the dock
-if $darwin; then
-    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
-fi
-
-# For Cygwin or MSYS, switch paths to Windows format before running java
-if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
-    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
-    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
-
-    JAVACMD=`cygpath --unix "$JAVACMD"`
-
-    # We build the pattern for arguments to be converted via cygpath
-    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
-    SEP=""
-    for dir in $ROOTDIRSRAW ; do
-        ROOTDIRS="$ROOTDIRS$SEP$dir"
-        SEP="|"
-    done
-    OURCYGPATTERN="(^($ROOTDIRS))"
-    # Add a user-defined pattern to the cygpath arguments
-    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
-        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
-    fi
-    # Now convert the arguments - kludge to limit ourselves to /bin/sh
-    i=0
-    for arg in "$@" ; do
-        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
-        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
-
-        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
-            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
-        else
-            eval `echo args$i`="\"$arg\""
-        fi
-        i=`expr $i + 1`
-    done
-    case $i in
-        0) set -- ;;
-        1) set -- "$args0" ;;
-        2) set -- "$args0" "$args1" ;;
-        3) set -- "$args0" "$args1" "$args2" ;;
-        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
-        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
-        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
-        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
-        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
-        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
 fi
 
-# Escape application args
-save () {
-    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
-    echo " "
-}
-APP_ARGS=`save "$@"`
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
 
-# Collect all arguments for the java command, following the shell quoting and substitution rules
-eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
 
 exec "$JAVACMD" "$@"

gradlew.bat

@@ -14,7 +14,7 @@
 @rem limitations under the License.
 @rem
 
-@if "%DEBUG%" == "" @echo off
+@if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
 @rem
 @rem  Gradle startup script for Windows
@@ -25,7 +25,8 @@
 if "%OS%"=="Windows_NT" setlocal
 
 set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
@@ -40,7 +41,7 @@ if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto execute
+if %ERRORLEVEL% equ 0 goto execute
 
 echo.
 echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
@@ -75,13 +76,15 @@ set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
 :end
 @rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
+if %ERRORLEVEL% equ 0 goto mainEnd
 
 :fail
 rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
 rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
 
 :mainEnd
 if "%OS%"=="Windows_NT" endlocal

patches/api/0001-Kaiiju-Configuration.patch

@@ -5,12 +5,12 @@ Subject: [PATCH] Kaiiju Configuration
 
 
 diff --git a/src/main/java/org/bukkit/Server.java b/src/main/java/org/bukkit/Server.java
-index e0f69edf603c2ec99bc92b16b18912272cc41bd9..b2c8c18437537eb2ea91bdeb9f715e01a182fbcb 100644
+index 1ef4cf3b19d58565e052829358eb5902f070ae02..490a70920dca1cfde4796cc2fb69fdb98942bbdc 100644
 --- a/src/main/java/org/bukkit/Server.java
 +++ b/src/main/java/org/bukkit/Server.java
-@@ -1983,6 +1983,13 @@ public interface Server extends PluginMessageRecipient, net.kyori.adventure.audi
+@@ -2007,6 +2007,13 @@ public interface Server extends PluginMessageRecipient, net.kyori.adventure.audi
          }
-         // Purpur end
+         // Paper end
  
 +        // Kaiiju start
 +        @NotNull

patches/removed/0016-Fix-off-thread-raid-winners.patch

@@ -0,0 +1,18 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Tue, 9 May 2023 15:11:56 +0300
+Subject: [PATCH] Fix off thread raid winners
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/raid/Raid.java b/src/main/java/net/minecraft/world/entity/raid/Raid.java
+index 359f1690497eac00899eb26c17308e0a6fe943ad..3cc320e854cbb9e70b6c63f1f950091c5195edae 100644
+--- a/src/main/java/net/minecraft/world/entity/raid/Raid.java
++++ b/src/main/java/net/minecraft/world/entity/raid/Raid.java
+@@ -404,6 +404,7 @@ public class Raid {
+                             UUID uuid = (UUID) iterator.next();
+                             Entity entity = this.level.getEntity(uuid);
+ 
++                            if (!io.papermc.paper.util.TickThread.isTickThreadFor(entity)) continue; // Kaiiju - Prevent give effect to player off thread
+                             if (entity instanceof LivingEntity && !entity.isSpectator()) {
+                                 LivingEntity entityliving = (LivingEntity) entity;
+ 

patches/removed/0032-Fix-visual-respawn-issue.patch

@@ -0,0 +1,18 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Wed, 21 Jun 2023 04:15:44 +0300
+Subject: [PATCH] Fix visual respawn issue
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+index 10c7f5c6fc0e5cb8aafbe125dd68635a37b7b1b9..6f589e7e4bbed0b2fa87403c86f18d36672cf1d0 100644
+--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
++++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+@@ -633,6 +633,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
+         ++this.deathTime;
+         if (this.deathTime >= 20 && !this.level().isClientSide() && !this.isRemoved() && !this.broadcastedDeath) { // Folia - region threading
+             this.level().broadcastEntityEvent(this, (byte) 60);
++            this.broadcastedDeath = true; // Kaiiju - Fix respawn issue / Visual bug
+             if (!(this instanceof ServerPlayer)) this.remove(Entity.RemovalReason.KILLED); // Folia - region threading - don't remove, we want the tick scheduler to be running
+             if ((this instanceof ServerPlayer)) this.unRide(); // Folia - region threading - unmount player when dead
+         }

patches/server/0001-Rebranding.patch

@@ -1,99 +1,103 @@
 From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
 From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
 Date: Fri, 10 Feb 2023 02:58:46 +0200
-Subject: [PATCH] Kaiiju Rebranding
+Subject: [PATCH] Rebranding
 
 
 diff --git a/build.gradle.kts b/build.gradle.kts
-index 020927dfe9624453311d1d171a10f44344ec8710..c6a4c48b14a8c927284720b79b93ee1aa9df7da6 100644
+index 215366d7cc3720805d2dfde0662372ecede8383c..24f16ac70f993b9645ff01473633f542e57b0fc0 100644
 --- a/build.gradle.kts
 +++ b/build.gradle.kts
-@@ -7,7 +7,7 @@ plugins {
- }
+@@ -8,7 +8,7 @@ plugins {
  
  dependencies {
--    implementation(project(":purpur-api")) // Purpur
-+    implementation(project(":kaiiju-api")) // Purpur // Kaiiju
-     // Pufferfish start
+     // Folia start
+-    implementation(project(":folia-api"))
++    implementation(project(":kaiiju-api")) // Kaiiju
      implementation("io.papermc.paper:paper-mojangapi:1.19.3-R0.1-SNAPSHOT") {
          exclude("io.papermc.paper", "paper-api")
-@@ -83,7 +83,7 @@ tasks.jar {
+     }
+@@ -68,7 +68,7 @@ tasks.jar {
          attributes(
              "Main-Class" to "org.bukkit.craftbukkit.Main",
              "Implementation-Title" to "CraftBukkit",
--            "Implementation-Version" to "git-Purpur-$implementationVersion", // Purpur
-+            "Implementation-Version" to "git-Kaiiju-$implementationVersion", // Purpur // Kaiiju
+-            "Implementation-Version" to "git-Folia-$implementationVersion", // Folia
++            "Implementation-Version" to "git-Kaiiju-$implementationVersion", // Folia // Kaiiju
              "Implementation-Vendor" to date, // Paper
              "Specification-Title" to "Bukkit",
              "Specification-Version" to project.version,
 diff --git a/src/main/java/com/destroystokyo/paper/Metrics.java b/src/main/java/com/destroystokyo/paper/Metrics.java
-index 9713263c3bd34ab8a3bfc0a8797ba0b1b88ed733..0b95cd5305e4559d6dca59011869e5b203d51576 100644
+index 58dc84b7b3b04c2d0b00fc5fac5303d3378b3467..a128b1fabd4aadfe26a8375903c0451d7a65983a 100644
 --- a/src/main/java/com/destroystokyo/paper/Metrics.java
 +++ b/src/main/java/com/destroystokyo/paper/Metrics.java
 @@ -593,7 +593,7 @@ public class Metrics {
              boolean logFailedRequests = config.getBoolean("logFailedRequests", false);
              // Only start Metrics, if it's enabled in the config
              if (config.getBoolean("enabled", true)) {
--                Metrics metrics = new Metrics("Purpur", serverUUID, logFailedRequests, Bukkit.getLogger()); // Purpur
-+                Metrics metrics = new Metrics("Kaiiju", serverUUID, logFailedRequests, Bukkit.getLogger()); // Purpur // Kaiiju
+-                Metrics metrics = new Metrics("Folia", serverUUID, logFailedRequests, Bukkit.getLogger()); // Folia - we have our own bstats page
++                Metrics metrics = new Metrics("Kaiiju", serverUUID, logFailedRequests, Bukkit.getLogger()); // Folia - we have our own bstats page // Kaiiju
  
                  metrics.addCustomChart(new Metrics.SimplePie("minecraft_version", () -> {
                      String minecraftVersion = Bukkit.getVersion();
-@@ -603,7 +603,7 @@ public class Metrics {
- 
-                 metrics.addCustomChart(new Metrics.SingleLineChart("players", () -> Bukkit.getOnlinePlayers().size()));
-                 metrics.addCustomChart(new Metrics.SimplePie("online_mode", () -> Bukkit.getOnlineMode() ? "online" : (io.papermc.paper.configuration.GlobalConfiguration.get().proxies.isProxyOnlineMode() ? "bungee" : "offline"))); // Purpur
--                metrics.addCustomChart(new Metrics.SimplePie("purpur_version", () -> (org.bukkit.craftbukkit.Main.class.getPackage().getImplementationVersion() != null) ? org.bukkit.craftbukkit.Main.class.getPackage().getImplementationVersion() : "unknown")); // Purpur
-+                metrics.addCustomChart(new Metrics.SimplePie("kaiiju_version", () -> (org.bukkit.craftbukkit.Main.class.getPackage().getImplementationVersion() != null) ? org.bukkit.craftbukkit.Main.class.getPackage().getImplementationVersion() : "unknown")); // Purpur // Kaiiju
+@@ -612,6 +612,7 @@ public class Metrics {
+                     paperVersion = "unknown";
+                 }
+                 metrics.addCustomChart(new Metrics.SimplePie("folia_version", () -> paperVersion)); // Folia - we have our own bstats page
++                metrics.addCustomChart(new Metrics.SimplePie("kaiiju_version", () -> (org.bukkit.craftbukkit.Main.class.getPackage().getImplementationVersion() != null) ? org.bukkit.craftbukkit.Main.class.getPackage().getImplementationVersion() : "unknown")); // Kaiiju
  
                  metrics.addCustomChart(new Metrics.DrilldownPie("java_version", () -> {
                      Map<String, Map<String, Integer>> map = new HashMap<>();
 diff --git a/src/main/java/com/destroystokyo/paper/PaperVersionFetcher.java b/src/main/java/com/destroystokyo/paper/PaperVersionFetcher.java
-index fba5dbdb7bcbb55400ef18342c9b54612972a718..8aaa2942d35d6447655f8355106841a30429b653 100644
+index e2f704c115fd6e00960bb56bb0779f1100c89c17..95bc514df2022dde265b84490d3d0db002685024 100644
 --- a/src/main/java/com/destroystokyo/paper/PaperVersionFetcher.java
 +++ b/src/main/java/com/destroystokyo/paper/PaperVersionFetcher.java
-@@ -20,7 +20,7 @@ import java.util.stream.StreamSupport;
+@@ -20,9 +20,11 @@ import java.util.stream.StreamSupport;
  public class PaperVersionFetcher implements VersionFetcher {
      private static final java.util.regex.Pattern VER_PATTERN = java.util.regex.Pattern.compile("^([0-9\\.]*)\\-.*R"); // R is an anchor, will always give '-R' at end
-     // Purpur start
--    private static final String DOWNLOAD_PAGE = "https://purpurmc.org/downloads";
-+    private static final String DOWNLOAD_PAGE = "https://github.com/KaiijuMC/Kaiiju/releases"; // Kaiiju
-     private static int distance = -2; public int distance() { return distance; }
-     // Purpur end
+     private static final String GITHUB_BRANCH_NAME = "master";
+-    private static final String DOWNLOAD_PAGE = "https://papermc.io/downloads/paper";
++    // Kaiiju start
++    private static final String DOWNLOAD_PAGE = "https://github.com/KaiijuMC/Kaiiju/releases";
++    private static int distance = -2; public int distance() { return distance; }
++    // Kaiiju end
      private static @Nullable String mcVer;
-@@ -33,8 +33,8 @@ public class PaperVersionFetcher implements VersionFetcher {
+-
+     @Override
+     public long getCacheTime() {
+         return 720000;
+@@ -31,8 +33,8 @@ public class PaperVersionFetcher implements VersionFetcher {
      @Nonnull
      @Override
      public Component getVersionMessage(@Nonnull String serverVersion) {
--        String[] parts = serverVersion.substring("git-Purpur-".length()).split("[-\\s]"); // Purpur
--        final Component updateMessage = getUpdateStatusMessage("PurpurMC/Purpur", "ver/" + getMinecraftVersion(), parts[0]); // Purpur
-+        String[] parts = serverVersion.substring("git-Kaiiju-".length()).split("[-\\s]"); // Purpur // Kaiiju
-+        final Component updateMessage = getUpdateStatusMessage("KaiijuMC/Kaiiju", "ver/" + getMinecraftVersion(), parts[0]); // Purpur // Kaiiju
+-        String[] parts = serverVersion.substring("git-Folia-".length()).split("[-\\s]"); // Folia
+-        final Component updateMessage = getUpdateStatusMessage("PaperMC/Folia", GITHUB_BRANCH_NAME, parts[0]); // Folia
++        String[] parts = serverVersion.substring("git-Kaiiju-".length()).split("[-\\s]"); // Folia // Kaiiju
++        final Component updateMessage = getUpdateStatusMessage("KaiijuMC/Kaiiju", "ver/" + getMinecraftVersion(), parts[0]); // Folia // Kaiiju
          final Component history = getHistory();
  
-         return history != null ? Component.join(net.kyori.adventure.text.JoinConfiguration.separator(Component.newline()), history, updateMessage) : updateMessage; // Purpur
-@@ -47,7 +47,7 @@ public class PaperVersionFetcher implements VersionFetcher {
+         return history != null ? TextComponent.ofChildren(updateMessage, Component.newline(), history) : updateMessage;
+@@ -45,7 +47,7 @@ public class PaperVersionFetcher implements VersionFetcher {
                  String result = matcher.group();
                  mcVer = result.substring(0, result.length() - 2); // strip 'R' anchor and trailing '-'
              } else {
--                org.bukkit.Bukkit.getLogger().warning("Unable to match version to pattern! Report to Purpur!"); // Purpur
-+                org.bukkit.Bukkit.getLogger().warning("Unable to match version to pattern! Report to Kaiiju!"); // Purpur // Kaiiju
+-                org.bukkit.Bukkit.getLogger().warning("Unable to match version to pattern! Report to PaperMC!");
++                org.bukkit.Bukkit.getLogger().warning("Unable to match version to pattern! Report to KaiijuMC!"); // Kaiiju
                  org.bukkit.Bukkit.getLogger().warning("Pattern: " + VER_PATTERN.toString());
                  org.bukkit.Bukkit.getLogger().warning("Version: " + org.bukkit.Bukkit.getBukkitVersion());
              }
-@@ -58,6 +58,8 @@ public class PaperVersionFetcher implements VersionFetcher {
+@@ -56,6 +58,7 @@ public class PaperVersionFetcher implements VersionFetcher {
  
      private static Component getUpdateStatusMessage(@Nonnull String repo, @Nonnull String branch, @Nonnull String versionInfo) {
-         //int distance; // Purpur - use field
-+        // Kaiiju start - disable jenkins/api checking
-+        /*
+         int distance;
++        /* // Kaiiju - disable jenkins/api checking
          try {
              int jenkinsBuild = Integer.parseInt(versionInfo);
              distance = fetchDistanceFromSiteApi(jenkinsBuild, getMinecraftVersion());
-@@ -65,6 +67,10 @@ public class PaperVersionFetcher implements VersionFetcher {
+@@ -63,6 +66,11 @@ public class PaperVersionFetcher implements VersionFetcher {
              versionInfo = versionInfo.replace("\"", "");
              distance = fetchDistanceFromGitHub(repo, branch, versionInfo);
          }
++        // Kaiiju start - disable jenkins/api checking
 +        */
 +        versionInfo = versionInfo.replace("\"", "");
 +        distance = fetchDistanceFromGitHub(repo, branch, versionInfo);
@@ -102,128 +106,124 @@ index fba5dbdb7bcbb55400ef18342c9b54612972a718..8aaa2942d35d6447655f8355106841a3
          switch (distance) {
              case -1:
 diff --git a/src/main/java/com/destroystokyo/paper/console/PaperConsole.java b/src/main/java/com/destroystokyo/paper/console/PaperConsole.java
-index 3cb56595822799926a8141e60a42f5d1edfc6de5..7ae1c10ebfb8b61e7d0fa63c96ff2dee98294f4d 100644
+index c5d5648f4ca603ef2b1df723b58f9caf4dd3c722..1c7b5d91e914efbcfb50c6137c7760787e38ad94 100644
 --- a/src/main/java/com/destroystokyo/paper/console/PaperConsole.java
 +++ b/src/main/java/com/destroystokyo/paper/console/PaperConsole.java
 @@ -17,7 +17,7 @@ public final class PaperConsole extends SimpleTerminalConsole {
      @Override
      protected LineReader buildReader(LineReaderBuilder builder) {
          builder
--                .appName("Purpur") // Purpur
-+                .appName("Kaiiju") // Purpur // Kaiiju
+-                .appName("Paper")
++                .appName("Kaiiju") // Kaiiju
                  .variable(LineReader.HISTORY_FILE, java.nio.file.Paths.get(".console_history"))
                  .completer(new ConsoleCommandCompleter(this.server))
                  .option(LineReader.Option.COMPLETE_IN_WORD, true);
 diff --git a/src/main/java/net/minecraft/CrashReport.java b/src/main/java/net/minecraft/CrashReport.java
-index b5b6657e52e4f7a630229bd3ba433438af293e22..afda0d4198398de29a62159fae701b222969e9fa 100644
+index abe37c7c3c6f5ab73afd738ec78f06d7e4d2ed96..52fc6bb99f6024273c7438d01314b576da66bd1a 100644
 --- a/src/main/java/net/minecraft/CrashReport.java
 +++ b/src/main/java/net/minecraft/CrashReport.java
 @@ -125,7 +125,7 @@ public class CrashReport {
          stringbuilder.append("---- Minecraft Crash Report ----\n");
-         // Purpur start
-         stringbuilder.append("// ");
--        stringbuilder.append("// DO NOT REPORT THIS TO PAPER! REPORT TO PURPUR INSTEAD!");
-+        stringbuilder.append("// DO NOT REPORT THIS TO PAPER/PURPUR! REPORT TO KAIIJU INSTEAD!"); // Kaiiju
-         // Purpur end
          stringbuilder.append("// ");
          stringbuilder.append(CrashReport.getErrorComment());
+-        stringbuilder.append("\n\n");
++        stringbuilder.append("// DO NOT REPORT THIS TO PAPER/FOLIA! REPORT TO KAIIJU INSTEAD!"); // Kaiiju
+         stringbuilder.append("Time: ");
+         stringbuilder.append(CrashReport.DATE_TIME_FORMATTER.format(ZonedDateTime.now()));
+         stringbuilder.append("\n");
 diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
-index cea4447aad2d64db56a76e4ba180dc7326d2e13b..40b4bd2f1a61c2d9a59c9c09b72713401969460b 100644
+index 11ff1bc559316da426070867f045720ebd8c1962..cc1a7c4d38874ec218f7151685ae6cc00295c2e4 100644
 --- a/src/main/java/net/minecraft/server/MinecraftServer.java
 +++ b/src/main/java/net/minecraft/server/MinecraftServer.java
-@@ -927,7 +927,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+@@ -995,7 +995,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
          shutdownThread = Thread.currentThread();
          org.spigotmc.WatchdogThread.doStop(); // Paper
-         if (!isSameThread()) {
--            MinecraftServer.LOGGER.info("Stopping main thread (Ignore any thread death message you see! - DO NOT REPORT THREAD DEATH TO PURPUR)"); // Purpur
-+            MinecraftServer.LOGGER.info("Stopping main thread (Ignore any thread death message you see! - DO NOT REPORT THREAD DEATH TO KAIIJU)"); // Purpur // Kaiiju
+         if (false && !isSameThread()) { // Folia - region threading
+-            MinecraftServer.LOGGER.info("Stopping main thread (Ignore any thread death message you see! - DO NOT REPORT THREAD DEATH TO PAPER)");
++            MinecraftServer.LOGGER.info("Stopping main thread (Ignore any thread death message you see! - DO NOT REPORT THREAD DEATH TO KAIIJU)"); // Kaiiju
              while (this.getRunningThread().isAlive()) {
                  this.getRunningThread().stop();
                  try {
+@@ -1812,7 +1812,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+ 
+     @DontObfuscate
+     public String getServerModName() {
+-        return "Folia"; // Folia - Folia > // Paper - Paper > // Spigot - Spigot > // CraftBukkit - cb > vanilla!
++        return "Kaiiju"; // Kaiiju - Kaiiju > // Folia - Folia > // Paper - Paper > // Spigot - Spigot > // CraftBukkit - cb > vanilla!
+     }
+ 
+     public SystemReport fillSystemReport(SystemReport details) {
 diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
-index 4a8aafd341fdad4b5ae326c4759b3381f5061fb5..caf1237491649205f7b3c7ea4fe1d31d567bbafe 100644
+index 20af7484bf570d28cd9723fdbb1ec07657117367..753594551faa1bff4317386c3df927f486900dab 100644
 --- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 +++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
-@@ -262,7 +262,7 @@ import javax.annotation.Nullable; // Paper
+@@ -261,7 +261,7 @@ import javax.annotation.Nullable; // Paper
  import javax.annotation.Nonnull; // Paper
  
  public final class CraftServer implements Server {
--    private final String serverName = "Purpur"; // Paper // Purpur
-+    private final String serverName = "Kaiiju"; // Paper // Purpur // Kaiiju
+-    private final String serverName = "Folia"; // Folia // Paper
++    private final String serverName = "Kaiiju"; // Kaiiju // Folia // Paper
      private final String serverVersion;
      private final String bukkitVersion = Versioning.getBukkitVersion();
      private final Logger logger = Logger.getLogger("Minecraft");
 diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
-index 78ac748859e21a61140e9bff67e4527a8d35b4b6..5e14153433f5c7854a357aad4776b2aad4cd6fa0 100644
+index 564c72d6351721505dbffaf5af732db2dd3210ac..957ae18874710ad0e10f4210fc819fe555437c01 100644
 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
 +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
-@@ -883,7 +883,7 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
+@@ -886,7 +886,7 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
              return EntityCategory.WATER;
          }
  
--        throw new UnsupportedOperationException("Unsupported monster type: " + type + ". This is a bug, report this to Purpur."); // Purpur
-+        throw new UnsupportedOperationException("Unsupported monster type: " + type + ". This is a bug, report this to Kaiiju."); // Purpur // Kaiiju
+-        throw new UnsupportedOperationException("Unsupported monster type: " + type + ". This is a bug, report this to Spigot.");
++        throw new UnsupportedOperationException("Unsupported monster type: " + type + ". This is a bug, report this to Kaiiju."); // Kaiiju
      }
  
      @Override
 diff --git a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java
-index 5402098dce0d64d3dceea51f248d7d366850a74f..2b7a67c339994c34296f7057ffc8822b4aa0036b 100644
+index eb84a8dd97f92de4a7dd3826d9e124a442cba565..e24d653fafcd88e01786b77539c506bcf3751c2c 100644
 --- a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java
 +++ b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java
-@@ -504,7 +504,7 @@ public class CraftScheduler implements BukkitScheduler {
+@@ -501,7 +501,7 @@ public class CraftScheduler implements BukkitScheduler {
                  this.parsePending();
              } else {
-                 //this.debugTail = this.debugTail.setNext(new CraftAsyncDebugger(currentTick + CraftScheduler.RECENT_TICKS, task.getOwner(), task.getTaskClass())); // Paper
--                task.getOwner().getLogger().log(Level.SEVERE, "Unexpected Async Task in the Sync Scheduler. Report this to Purpur"); // Paper // Purpur
-+                task.getOwner().getLogger().log(Level.SEVERE, "Unexpected Async Task in the Sync Scheduler. Report this to Kaiiju"); // Paper // Purpur // Kaiiju
+                 // this.debugTail = this.debugTail.setNext(new CraftAsyncDebugger(currentTick + CraftScheduler.RECENT_TICKS, task.getOwner(), task.getTaskClass())); // Paper
+-                task.getOwner().getLogger().log(Level.SEVERE, "Unexpected Async Task in the Sync Scheduler. Report this to Paper"); // Paper
++                task.getOwner().getLogger().log(Level.SEVERE, "Unexpected Async Task in the Sync Scheduler. Report this to Kaiiju"); // Paper // Kaiiju
                  // We don't need to parse pending
                  // (async tasks must live with race-conditions if they attempt to cancel between these few lines of code)
              }
 diff --git a/src/main/java/org/bukkit/craftbukkit/util/Versioning.java b/src/main/java/org/bukkit/craftbukkit/util/Versioning.java
-index fb87620c742ff7912f5e8ccd2a7930dd605576d9..0f56013165cd61023b4f30a4da424b701e14a8e2 100644
+index e9b6ca3aa25e140467ae866d572483050ea3fa0e..5df2b0fceebaaa863f4f143c8f29e808b7f0c49b 100644
 --- a/src/main/java/org/bukkit/craftbukkit/util/Versioning.java
 +++ b/src/main/java/org/bukkit/craftbukkit/util/Versioning.java
 @@ -11,7 +11,7 @@ public final class Versioning {
      public static String getBukkitVersion() {
          String result = "Unknown-Version";
  
--        InputStream stream = Bukkit.class.getClassLoader().getResourceAsStream("META-INF/maven/org.purpurmc.purpur/purpur-api/pom.properties"); // Purpur
-+        InputStream stream = Bukkit.class.getClassLoader().getResourceAsStream("META-INF/maven/dev.kaiijumc.kaiiju/kaiiju-api/pom.properties"); // Purpur // Kaiiju
+-        InputStream stream = Bukkit.class.getClassLoader().getResourceAsStream("META-INF/maven/dev.folia/folia-api/pom.properties"); // Folia
++        InputStream stream = Bukkit.class.getClassLoader().getResourceAsStream("META-INF/maven/dev.kaiijumc.kaiiju/kaiiju-api/pom.properties"); // Folia // Kaiiju
          Properties properties = new Properties();
  
          if (stream != null) {
-diff --git a/src/main/java/org/purpurmc/purpur/PurpurConfig.java b/src/main/java/org/purpurmc/purpur/PurpurConfig.java
-index c7c0ed8dfe58c841faf684a1fe228eeda6cd57b7..410ce2dc98c48871d2ddfb0195f2885adc18cba8 100644
---- a/src/main/java/org/purpurmc/purpur/PurpurConfig.java
-+++ b/src/main/java/org/purpurmc/purpur/PurpurConfig.java
-@@ -227,7 +227,7 @@ public class PurpurConfig {
-         deathMessageOnlyBroadcastToAffectedPlayer = getBoolean("settings.broadcasts.death.only-broadcast-to-affected-player", deathMessageOnlyBroadcastToAffectedPlayer);
-     }
- 
--    public static String serverModName = "Purpur";
-+    public static String serverModName = "Kaiiju"; // Kaiiju
-     private static void serverModName() {
-         serverModName = getString("settings.server-mod-name", serverModName);
-     }
 diff --git a/src/main/java/org/spigotmc/WatchdogThread.java b/src/main/java/org/spigotmc/WatchdogThread.java
-index a810bfd3b8d6bd4d8f2ef8797e4281ae4fe8a67f..7e92d77edb448f2ec818bf4b876d3df56d6362cc 100644
+index 98fba0288be9ed2cb18ffba5cf81148157dd4fcf..9c1477cfa1a8074c4b3b8a365bb03c44eaa62972 100644
 --- a/src/main/java/org/spigotmc/WatchdogThread.java
 +++ b/src/main/java/org/spigotmc/WatchdogThread.java
 @@ -155,14 +155,14 @@ public final class WatchdogThread extends io.papermc.paper.util.TickThread // Pa
                  if (isLongTimeout) {
                  // Paper end
                  log.log( Level.SEVERE, "------------------------------" );
--                log.log( Level.SEVERE, "The server has stopped responding! This is (probably) not a Purpur bug." ); // Paper // Purpur
-+                log.log( Level.SEVERE, "The server has stopped responding! This is (probably) not a Kaiiju bug." ); // Paper // Purpur // Kaiiju
+-                log.log( Level.SEVERE, "The server has stopped responding! This is (probably) not a Paper bug." ); // Paper
++                log.log( Level.SEVERE, "The server has stopped responding! This is (probably) not a Kaiiju bug." ); // Paper // Kaiiju
                  log.log( Level.SEVERE, "If you see a plugin in the Server thread dump below, then please report it to that author" );
                  log.log( Level.SEVERE, "\t *Especially* if it looks like HTTP or MySQL operations are occurring" );
                  log.log( Level.SEVERE, "If you see a world save or edit, then it means you did far more than your server can handle at once" );
                  log.log( Level.SEVERE, "\t If this is the case, consider increasing timeout-time in spigot.yml but note that this will replace the crash with LARGE lag spikes" );
--                log.log( Level.SEVERE, "If you are unsure or still think this is a Purpur bug, please report this to https://github.com/PurpurMC/Purpur/issues" ); // Purpur
-+                log.log( Level.SEVERE, "If you are unsure or still think this is a Kaiiju bug, please report this to https://github.com/KaiijuMC/Kaiiju/issues" ); // Purpur // Kaiiju
+-                log.log( Level.SEVERE, "If you are unsure or still think this is a Paper bug, please report this to https://github.com/PaperMC/Paper/issues" );
++                log.log( Level.SEVERE, "If you are unsure or still think this is a Kaiiju bug, please report this to https://github.com/KaiijuMC/Kaiiju/issues" ); // Kaiiju
                  log.log( Level.SEVERE, "Be sure to include ALL relevant console errors and Minecraft crash reports" );
--                log.log( Level.SEVERE, "Purpur version: " + Bukkit.getServer().getVersion() ); // Purpur
-+                log.log( Level.SEVERE, "Kaiiju version: " + Bukkit.getServer().getVersion() ); // Purpur // Kaiiju
+-                log.log( Level.SEVERE, "Paper version: " + Bukkit.getServer().getVersion() );
++                log.log( Level.SEVERE, "Kaiiju version: " + Bukkit.getServer().getVersion() ); // Kaiiju
                  //
                  if ( net.minecraft.world.level.Level.lastPhysicsProblem != null )
                  {
@@ -231,14 +231,14 @@ index a810bfd3b8d6bd4d8f2ef8797e4281ae4fe8a67f..7e92d77edb448f2ec818bf4b876d3df5
                  // Paper end
                  } else
                  {
--                    log.log(Level.SEVERE, "--- DO NOT REPORT THIS TO PURPUR - THIS IS NOT A BUG OR A CRASH  - " + Bukkit.getServer().getVersion() + " ---"); // Purpur
-+                    log.log(Level.SEVERE, "--- DO NOT REPORT THIS TO KAIIJU - THIS IS NOT A BUG OR A CRASH  - " + Bukkit.getServer().getVersion() + " ---"); // Purpur // Kaiiju
+-                    log.log(Level.SEVERE, "--- DO NOT REPORT THIS TO PAPER - THIS IS NOT A BUG OR A CRASH  - " + Bukkit.getServer().getVersion() + " ---");
++                    log.log(Level.SEVERE, "--- DO NOT REPORT THIS TO KAIIJU - THIS IS NOT A BUG OR A CRASH  - " + Bukkit.getServer().getVersion() + " ---"); // Kaiiju
                      log.log(Level.SEVERE, "The server has not responded for " + (currentTime - lastTick) / 1000 + " seconds! Creating thread dump");
                  }
                  // Paper end - Different message for short timeout
                  log.log( Level.SEVERE, "------------------------------" );
--                log.log( Level.SEVERE, "Server thread dump (Look for plugins here before reporting to Purpur!):" ); // Paper // Purpur
-+                log.log( Level.SEVERE, "Server thread dump (Look for plugins here before reporting to Kaiiju!):" ); // Paper // Purpur // Kaiiju
+-                log.log( Level.SEVERE, "Server thread dump (Look for plugins here before reporting to Paper!):" ); // Paper
++                log.log( Level.SEVERE, "Server thread dump (Look for plugins here before reporting to Kaiiju!):" ); // Paper // Kaiiju
                  io.papermc.paper.chunk.system.scheduling.ChunkTaskScheduler.dumpAllChunkLoadInfo(isLongTimeout); // Paper // Paper - rewrite chunk system
                  this.dumpTickingInfo(); // Paper - log detailed tick information
                  WatchdogThread.dumpThread( ManagementFactory.getThreadMXBean().getThreadInfo( MinecraftServer.getServer().serverThread.getId(), Integer.MAX_VALUE ), log );
@@ -246,8 +246,8 @@ index a810bfd3b8d6bd4d8f2ef8797e4281ae4fe8a67f..7e92d77edb448f2ec818bf4b876d3df5
                      WatchdogThread.dumpThread( thread, log );
                  }
                  } else {
--                    log.log(Level.SEVERE, "--- DO NOT REPORT THIS TO PURPUR - THIS IS NOT A BUG OR A CRASH ---"); // Purpur
-+                    log.log(Level.SEVERE, "--- DO NOT REPORT THIS TO KAIIJU - THIS IS NOT A BUG OR A CRASH ---"); // Purpur // Kaiiju
+-                    log.log(Level.SEVERE, "--- DO NOT REPORT THIS TO PAPER - THIS IS NOT A BUG OR A CRASH ---");
++                    log.log(Level.SEVERE, "--- DO NOT REPORT THIS TO KAIIJU - THIS IS NOT A BUG OR A CRASH ---"); // Kaiiju
                  }
  
                  log.log( Level.SEVERE, "------------------------------" );

patches/server/0002-Empty-configuration.patch

@@ -1,15 +1,15 @@
 From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
 From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
 Date: Fri, 10 Feb 2023 05:53:10 +0200
-Subject: [PATCH] Kaiiju Configuration
+Subject: [PATCH] Empty configuration
 
 
 diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
 new file mode 100644
-index 0000000000000000000000000000000000000000..da7e04a93664e20b9187292ddb7c1f935f5f2883
+index 0000000000000000000000000000000000000000..7da7e0aeb5eac9ac73a3570e716f1ceb11fd7027
 --- /dev/null
 +++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
-@@ -0,0 +1,193 @@
+@@ -0,0 +1,195 @@
 +package dev.kaiijumc.kaiiju;
 +
 +import com.google.common.base.Throwables;
@@ -27,6 +27,7 @@ index 0000000000000000000000000000000000000000..da7e04a93664e20b9187292ddb7c1f93
 +import java.lang.reflect.InvocationTargetException;
 +import java.lang.reflect.Method;
 +import java.lang.reflect.Modifier;
++import java.util.Arrays;
 +import java.util.HashMap;
 +import java.util.List;
 +import java.util.Map;
@@ -37,7 +38,8 @@ index 0000000000000000000000000000000000000000..da7e04a93664e20b9187292ddb7c1f93
 +    protected static final String HEADER = "This is the main configuration file for Kaiiju.\n"
 +            + "Some options may impact gameplay, so use with caution.\n"
 +            + "If you need help or have any questions related to Kaiiju,\n"
-+            + "Join our Discord server: https://discord.com/invite/qagZRAepb7";
++            + "Join our Discord server: https://discord.com/invite/qagZRAepb7\n"
++            + "Documentation: https://github.com/KaiijuMC/Kaiiju/wiki/Configuration";
 +    protected static File CONFIG_FILE;
 +    public static YamlConfiguration config;
 +
@@ -203,10 +205,9 @@ index 0000000000000000000000000000000000000000..da7e04a93664e20b9187292ddb7c1f93
 +        return builder.build();
 +    }
 +}
-\ No newline at end of file
 diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
 new file mode 100644
-index 0000000000000000000000000000000000000000..dd4c3ca77acb3aeefc69b8eb948b8b202ff87a19
+index 0000000000000000000000000000000000000000..87ca934473f3b9553c1b9b3ed60e0fa07838c711
 --- /dev/null
 +++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
 @@ -0,0 +1,125 @@
@@ -335,13 +336,12 @@ index 0000000000000000000000000000000000000000..dd4c3ca77acb3aeefc69b8eb948b8b20
 +        return value.isEmpty() ? fallback : value;
 +    }
 +}
-\ No newline at end of file
 diff --git a/src/main/java/dev/kaiijumc/kaiiju/command/KaiijuCommand.java b/src/main/java/dev/kaiijumc/kaiiju/command/KaiijuCommand.java
 new file mode 100644
-index 0000000000000000000000000000000000000000..0dde8879856f8882f2840b4b8bfb5aa0b3f06b91
+index 0000000000000000000000000000000000000000..6fac162e0ec057af9f3336314d5663554cef0490
 --- /dev/null
 +++ b/src/main/java/dev/kaiijumc/kaiiju/command/KaiijuCommand.java
-@@ -0,0 +1,68 @@
+@@ -0,0 +1,66 @@
 +package dev.kaiijumc.kaiiju.command;
 +
 +import dev.kaiijumc.kaiiju.KaiijuConfig;
@@ -380,26 +380,24 @@ index 0000000000000000000000000000000000000000..0dde8879856f8882f2840b4b8bfb5aa0
 +    @Override
 +    public boolean execute(CommandSender sender, String commandLabel, String[] args) {
 +        if (!testPermission(sender)) return true;
-+        String prefix = ChatColor.of(Color.decode("#F25DF6")) + "Kaiiju » " + ChatColor.RESET;
 +
 +        if (args.length != 1) {
-+            sender.sendMessage(prefix + ChatColor.RED + "Usage: " + usageMessage);
++            sender.sendMessage(ChatColor.RED + "Usage: " + usageMessage);
 +            return false;
 +        }
 +
 +        if (args[0].equalsIgnoreCase("reload")) {
-+            Command.broadcastCommandMessage(sender, prefix + ChatColor.RED + "Please note that this command is not supported and may cause issues.");
-+            Command.broadcastCommandMessage(sender, prefix + ChatColor.RED + "If you encounter any issues please use the /stop command to restart your server.");
++            Command.broadcastCommandMessage(sender, ChatColor.RED + "Please note that this command is not supported and may cause issues.");
++            Command.broadcastCommandMessage(sender, ChatColor.RED + "If you encounter any issues please use the /stop command to restart your server.");
 +
 +            MinecraftServer console = MinecraftServer.getServer();
 +            KaiijuConfig.reload((File) console.options.valueOf("kaiiju-settings"));
 +            for (ServerLevel level : console.getAllLevels()) {
 +                level.kaiijuConfig.reload();
-+                level.resetBreedingCooldowns();
 +            }
 +            console.server.reloadCount++;
 +
-+            Command.broadcastCommandMessage(sender, prefix + ChatColor.GREEN + "Kaiiju config reload complete.");
++            Command.broadcastCommandMessage(sender, ChatColor.GREEN + "Kaiiju config reload complete.");
 +        } else if (args[0].equalsIgnoreCase("version")) {
 +            Command verCmd = org.bukkit.Bukkit.getServer().getCommandMap().getCommand("version");
 +            if (verCmd != null) {
@@ -412,198 +410,82 @@ index 0000000000000000000000000000000000000000..0dde8879856f8882f2840b4b8bfb5aa0
 +}
 \ No newline at end of file
 diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
-index 46858fb57f122033a68aeb4ad3943132a677fb46..92fa3bb708ee2c965a76554268afee4db11f381d 100644
+index 78ada86028bac06b62a7d70776a29705a3b11a06..ee75d828174ac1c84931bc087472fefd76073bdb 100644
 --- a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
 +++ b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
-@@ -1,24 +1,21 @@
- package net.minecraft.server.dedicated;
- 
--import com.google.common.collect.Lists;
- import com.mojang.authlib.GameProfile;
- import com.mojang.datafixers.DataFixer;
- import com.mojang.logging.LogUtils;
--import java.io.BufferedReader;
-+
- import java.io.BufferedWriter;
- import java.io.IOException;
--import java.io.InputStreamReader;
- import java.net.InetAddress;
- import java.net.Proxy;
--import java.nio.charset.StandardCharsets;
- import java.nio.file.Files;
- import java.nio.file.Path;
--import java.util.Collections;
--import java.util.List;
- import java.util.Locale;
- import java.util.Optional;
- import java.util.function.BooleanSupplier;
- import javax.annotation.Nullable;
-+
-+import dev.kaiijumc.kaiiju.KaiijuConfig;
- import net.minecraft.DefaultUncaughtExceptionHandler;
- import net.minecraft.DefaultUncaughtExceptionHandlerWithName;
- import net.minecraft.SharedConstants;
-@@ -58,7 +55,6 @@ import org.apache.logging.log4j.Level;
- import org.apache.logging.log4j.LogManager;
- import org.apache.logging.log4j.io.IoBuilder;
- import org.bukkit.command.CommandSender;
--import co.aikar.timings.MinecraftTimings; // Paper
- import org.bukkit.event.server.ServerCommandEvent;
- import org.bukkit.craftbukkit.util.Waitable;
- import org.bukkit.event.server.RemoteServerCommandEvent;
-@@ -227,6 +223,15 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
-         }
-         org.purpurmc.purpur.PurpurConfig.registerCommands();
-         // Purpur end
+@@ -218,6 +218,15 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
+         thread.start(); // Paper - start console thread after MinecraftServer.console & PaperConfig are initialized
+         io.papermc.paper.command.PaperCommands.registerCommands(this);
+         com.destroystokyo.paper.Metrics.PaperMetrics.startMetrics();
 +        // Kaiiju start
 +        try {
-+            KaiijuConfig.init((java.io.File) options.valueOf("kaiiju-settings"));
++            dev.kaiijumc.kaiiju.KaiijuConfig.init((java.io.File) options.valueOf("kaiiju-settings"));
 +        } catch (Exception e) {
 +            DedicatedServer.LOGGER.error("Unable to load server configuration", e);
 +            return false;
 +        }
-+        KaiijuConfig.registerCommands();
++        dev.kaiijumc.kaiiju.KaiijuConfig.registerCommands();
 +        // Kaiiju end
          com.destroystokyo.paper.VersionHistoryManager.INSTANCE.getClass(); // load version history now
          io.papermc.paper.brigadier.PaperBrigadierProviderImpl.INSTANCE.getClass(); // init PaperBrigadierProvider
          // Paper end
 diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
-index a9289072b048095330ea32d7c965e8dda61a36fc..ce8873c47ec10d31d617a10128bed6ff21a24a39 100644
+index 8cf4428d8140fd03f0ad8fa1d148a04d8caefda8..fb71843793e699b2ccfaa3b7e4c2bb7d4826a706 100644
 --- a/src/main/java/net/minecraft/world/level/Level.java
 +++ b/src/main/java/net/minecraft/world/level/Level.java
-@@ -1,10 +1,7 @@
- package net.minecraft.world.level;
- 
--import co.aikar.timings.Timing;
--import co.aikar.timings.Timings;
- import com.destroystokyo.paper.event.server.ServerExceptionEvent;
- import com.destroystokyo.paper.exception.ServerInternalException;
--import com.google.common.base.MoreObjects;
- import com.google.common.collect.Lists;
- import com.mojang.serialization.Codec;
- import java.io.IOException;
-@@ -15,9 +12,10 @@ import java.util.function.Consumer;
- import java.util.function.Predicate;
- import java.util.function.Supplier;
- import javax.annotation.Nullable;
-+
-+import dev.kaiijumc.kaiiju.KaiijuWorldConfig;
- import net.minecraft.CrashReport;
- import net.minecraft.CrashReportCategory;
--import net.minecraft.ReportedException;
- import net.minecraft.core.BlockPos;
- import net.minecraft.core.Direction;
- import net.minecraft.core.Holder;
-@@ -35,15 +33,12 @@ import net.minecraft.server.level.ChunkHolder;
- import net.minecraft.server.level.ServerLevel;
- import net.minecraft.sounds.SoundEvent;
- import net.minecraft.sounds.SoundSource;
--import net.minecraft.util.AbortableIterationConsumer;
- import net.minecraft.util.Mth;
- import net.minecraft.util.RandomSource;
- import net.minecraft.util.profiling.ProfilerFiller;
- import net.minecraft.world.DifficultyInstance;
- import net.minecraft.world.damagesource.DamageSource;
- import net.minecraft.world.entity.Entity;
--import net.minecraft.world.entity.boss.EnderDragonPart;
--import net.minecraft.world.entity.boss.enderdragon.EnderDragon;
- import net.minecraft.world.entity.item.ItemEntity;
- import net.minecraft.world.entity.player.Player;
- import net.minecraft.world.item.ItemStack;
-@@ -89,17 +84,14 @@ import net.minecraft.network.protocol.game.ClientboundSetBorderSizePacket;
- import net.minecraft.network.protocol.game.ClientboundSetBorderWarningDelayPacket;
- import net.minecraft.network.protocol.game.ClientboundSetBorderWarningDistancePacket;
- import org.bukkit.Bukkit;
--import org.bukkit.Location;
- import org.bukkit.craftbukkit.CraftServer;
- import org.bukkit.craftbukkit.CraftWorld;
- import org.bukkit.craftbukkit.block.CapturedBlockState;
- import org.bukkit.craftbukkit.block.CraftBlockState;
- import org.bukkit.craftbukkit.block.data.CraftBlockData;
- import org.bukkit.craftbukkit.util.CraftSpawnCategory;
--import org.bukkit.craftbukkit.util.CraftNamespacedKey;
- import org.bukkit.entity.SpawnCategory;
- import org.bukkit.event.block.BlockPhysicsEvent;
--import org.bukkit.event.world.GenericGameEvent;
- // CraftBukkit end
- 
- public abstract class Level implements LevelAccessor, AutoCloseable {
-@@ -174,6 +166,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
+@@ -166,6 +166,8 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
+     // Paper end
  
      public final com.destroystokyo.paper.antixray.ChunkPacketBlockController chunkPacketBlockController; // Paper - Anti-Xray
-     public final org.purpurmc.purpur.PurpurWorldConfig purpurConfig; // Purpur
-+    public final KaiijuWorldConfig kaiijuConfig; // Kaiiju
- 
++    public final dev.kaiijumc.kaiiju.KaiijuWorldConfig kaiijuConfig; // Kaiiju
++
      public final co.aikar.timings.WorldTimingsHandler timings; // Paper
      public static BlockPos lastPhysicsProblem; // Spigot
-@@ -330,6 +323,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
+     private org.spigotmc.TickLimiter entityLimiter;
+@@ -293,6 +295,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
+     protected Level(WritableLevelData worlddatamutable, ResourceKey<Level> resourcekey, RegistryAccess iregistrycustom, Holder<DimensionType> holder, Supplier<ProfilerFiller> supplier, boolean flag, boolean flag1, long i, int j, org.bukkit.generator.ChunkGenerator gen, org.bukkit.generator.BiomeProvider biomeProvider, org.bukkit.World.Environment env, java.util.function.Function<org.spigotmc.SpigotWorldConfig, io.papermc.paper.configuration.WorldConfiguration> paperWorldConfigCreator, java.util.concurrent.Executor executor) { // Paper - Async-Anti-Xray - Pass executor
          this.spigotConfig = new org.spigotmc.SpigotWorldConfig(((net.minecraft.world.level.storage.PrimaryLevelData) worlddatamutable).getLevelName()); // Spigot
          this.paperConfig = paperWorldConfigCreator.apply(this.spigotConfig); // Paper
-         this.purpurConfig = new org.purpurmc.purpur.PurpurWorldConfig(((net.minecraft.world.level.storage.PrimaryLevelData) worlddatamutable).getLevelName(), env); // Purpur
-+        this.kaiijuConfig = new KaiijuWorldConfig(((net.minecraft.world.level.storage.PrimaryLevelData) worlddatamutable).getLevelName(), env); // Kaiiju
-         this.playerBreedingCooldowns = this.getNewBreedingCooldownCache(); // Purpur
++        this.kaiijuConfig = new dev.kaiijumc.kaiiju.KaiijuWorldConfig(((net.minecraft.world.level.storage.PrimaryLevelData) worlddatamutable).getLevelName(), env); // Kaiiju
          this.generator = gen;
          this.world = new CraftWorld((ServerLevel) this, gen, biomeProvider, env);
+ 
 diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
-index caf1237491649205f7b3c7ea4fe1d31d567bbafe..eacb6fbd753b8448bc8732eec2dc3444b6e93136 100644
+index 753594551faa1bff4317386c3df927f486900dab..714db83db78d5bd66d8353bf9b8c4a6b1734fce4 100644
 --- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 +++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
-@@ -7,7 +7,6 @@ import com.google.common.collect.ImmutableList;
- import com.google.common.collect.Iterators;
- import com.google.common.collect.Lists;
- import com.google.common.collect.MapMaker;
--import com.google.gson.JsonObject;
- import com.mojang.authlib.GameProfile;
- import com.mojang.brigadier.StringReader;
- import com.mojang.brigadier.exceptions.CommandSyntaxException;
-@@ -16,6 +15,7 @@ import com.mojang.brigadier.tree.LiteralCommandNode;
- import com.mojang.datafixers.util.Pair;
- import com.mojang.serialization.DynamicOps;
- import com.mojang.serialization.Lifecycle;
-+import dev.kaiijumc.kaiiju.KaiijuConfig;
- import io.netty.buffer.ByteBuf;
- import io.netty.buffer.ByteBufOutputStream;
- import io.netty.buffer.Unpooled;
-@@ -108,7 +108,6 @@ import net.minecraft.world.level.levelgen.PatrolSpawner;
- import net.minecraft.world.level.levelgen.PhantomSpawner;
- import net.minecraft.world.level.levelgen.WorldDimensions;
- import net.minecraft.world.level.levelgen.WorldOptions;
--import net.minecraft.world.level.levelgen.presets.WorldPresets;
- import net.minecraft.world.level.material.Fluid;
- import net.minecraft.world.level.saveddata.maps.MapDecoration;
- import net.minecraft.world.level.saveddata.maps.MapItemSavedData;
-@@ -1032,6 +1031,7 @@ public final class CraftServer implements Server {
+@@ -1094,6 +1094,7 @@ public final class CraftServer implements Server {
+ 
          org.spigotmc.SpigotConfig.init((File) console.options.valueOf("spigot-settings")); // Spigot
          this.console.paperConfigurations.reloadConfigs(this.console);
-         org.purpurmc.purpur.PurpurConfig.init((File) console.options.valueOf("purpur-settings")); // Purpur
-+        KaiijuConfig.init((File) console.options.valueOf("kaiiju-settings")); // Kaiiju
++        dev.kaiijumc.kaiiju.KaiijuConfig.init((File) console.options.valueOf("kaiiju-settings")); // Kaiiju
          for (ServerLevel world : this.console.getAllLevels()) {
              // world.serverLevelData.setDifficulty(config.difficulty); // Paper - per level difficulty
              world.setSpawnSettings(world.serverLevelData.getDifficulty() != Difficulty.PEACEFUL && config.spawnMonsters, config.spawnAnimals); // Paper - per level difficulty (from MinecraftServer#setDifficulty(ServerLevel, Difficulty, boolean))
-@@ -1048,6 +1048,7 @@ public final class CraftServer implements Server {
+@@ -1109,6 +1110,7 @@ public final class CraftServer implements Server {
+                 }
              }
              world.spigotConfig.init(); // Spigot
-             world.purpurConfig.init(); // Purpur
 +            world.kaiijuConfig.init(); // Kaiiju
          }
  
          Plugin[] pluginClone = pluginManager.getPlugins().clone(); // Paper
-@@ -1064,6 +1065,7 @@ public final class CraftServer implements Server {
+@@ -1124,6 +1126,7 @@ public final class CraftServer implements Server {
+         this.reloadData();
          org.spigotmc.SpigotConfig.registerCommands(); // Spigot
          io.papermc.paper.command.PaperCommands.registerCommands(this.console); // Paper
-         org.purpurmc.purpur.PurpurConfig.registerCommands(); // Purpur
-+        KaiijuConfig.registerCommands(); // Kaiiju
++        dev.kaiijumc.kaiiju.KaiijuConfig.registerCommands(); // Kaiiju
          this.overrideAllCommandBlockCommands = this.commandsConfiguration.getStringList("command-block-overrides").contains("*");
          this.ignoreVanillaPermissions = this.commandsConfiguration.getBoolean("ignore-vanilla-permissions");
  
-@@ -2885,6 +2887,13 @@ public final class CraftServer implements Server {
+@@ -2893,6 +2896,13 @@ public final class CraftServer implements Server {
+             return CraftServer.this.console.paperConfigurations.createLegacyObject(CraftServer.this.console);
          }
-         // Purpur end
  
 +        // Kaiiju start
 +        @Override
 +        public YamlConfiguration getKaiijuConfig() {
-+            return KaiijuConfig.config;
++            return dev.kaiijumc.kaiiju.KaiijuConfig.config;
 +        }
 +        // Kaiiju end
 +
@@ -611,12 +493,12 @@ index caf1237491649205f7b3c7ea4fe1d31d567bbafe..eacb6fbd753b8448bc8732eec2dc3444
          public void restart() {
              org.spigotmc.RestartCommand.restart();
 diff --git a/src/main/java/org/bukkit/craftbukkit/Main.java b/src/main/java/org/bukkit/craftbukkit/Main.java
-index 576cd8e20982bb20d10213b6c7a229428eec1c2f..190b4bc55d8b1e9983f7b77fd3545a59fa39e6f8 100644
+index 717e292040ed7779eb4b6c5fa26665d3df9024e7..d8ca697663ace353e88bfabc8997b58230d3d811 100644
 --- a/src/main/java/org/bukkit/craftbukkit/Main.java
 +++ b/src/main/java/org/bukkit/craftbukkit/Main.java
-@@ -180,6 +180,14 @@ public class Main {
-                         .describedAs("Yml file");
-                 // Purpur end
+@@ -173,6 +173,14 @@ public class Main {
+                         .describedAs("Jar file");
+                 // Paper end
  
 +                // Purpur Start
 +                acceptsAll(asList("kaiiju", "kaiiju-settings"), "File for kaiiju settings")

patches/server/0003-Kaiiju-RegionFormat-Configuration.patch

@@ -1,57 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
-Date: Fri, 10 Feb 2023 20:03:58 +0200
-Subject: [PATCH] Kaiiju RegionFormat Configuration
-
-
-diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
-index da7e04a93664e20b9187292ddb7c1f935f5f2883..66bbab7ebe1738cd937963b35fad9cdda763fa88 100644
---- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
-+++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
-@@ -15,6 +15,7 @@ import java.io.IOException;
- import java.lang.reflect.InvocationTargetException;
- import java.lang.reflect.Method;
- import java.lang.reflect.Modifier;
-+import java.util.Arrays;
- import java.util.HashMap;
- import java.util.List;
- import java.util.Map;
-@@ -190,4 +191,15 @@ public class KaiijuConfig {
-         }
-         return builder.build();
-     }
-+
-+    public static List<String> regionFormatList = Arrays.asList("ANVIL");
-+    public static String regionFormatName = "ANVIL";
-+
-+    private static void regionFormatSettings() {
-+        regionFormatName = getString("region-format.format", regionFormatName).toUpperCase();
-+        if (!regionFormatList.contains(regionFormatName)) {
-+            Bukkit.getLogger().log(Level.SEVERE, "Unknown region format in fusion.yml: " + regionFormatName);
-+            Bukkit.getLogger().log(Level.SEVERE, "Falling back to ANVIL region file format.");
-+        }
-+    }
- }
-\ No newline at end of file
-diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
-index 40b4bd2f1a61c2d9a59c9c09b72713401969460b..b9998c288c4e8b6a244722915e44250b6550fd7e 100644
---- a/src/main/java/net/minecraft/server/MinecraftServer.java
-+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
-@@ -855,7 +855,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
-             // Paper start - rewrite chunk system
-             worldserver.save((ProgressListener) null, flush, worldserver.noSave && !force, close);
-             if (flush) {
--                MinecraftServer.LOGGER.info("ThreadedAnvilChunkStorage ({}): All chunks are saved", worldserver.getChunkSource().chunkMap.getStorageName());
-+                MinecraftServer.LOGGER.info("ThreadedChunkStorage ({}): All chunks are saved", worldserver.getChunkSource().chunkMap.getStorageName()); // Kaiiju
-             }
-             // Paper end - rewrite chunk system
-         }
-@@ -879,7 +879,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
-                 //MinecraftServer.LOGGER.info("ThreadedAnvilChunkStorage ({}): All chunks are saved", worldserver2.getChunkSource().chunkMap.getStorageName()); // Paper - move up
-             }
- 
--            MinecraftServer.LOGGER.info("ThreadedAnvilChunkStorage: All dimensions are saved");
-+            MinecraftServer.LOGGER.info("ThreadedChunkStorage: All dimensions are saved"); // Kaiiju
-         }
- 
-         return flag3;

patches/server/0003-Region-format-configuration.patch

@@ -0,0 +1,108 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Fri, 10 Feb 2023 20:03:58 +0200
+Subject: [PATCH] Region format configuration
+
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+index 7da7e0aeb5eac9ac73a3570e716f1ceb11fd7027..b86c90cc3601e666998cfa12f44515f605bb53eb 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+@@ -192,4 +192,10 @@ public class KaiijuConfig {
+         }
+         return builder.build();
+     }
++
++    public static boolean regionFormatDebug = false;
++
++    private static void regionFormatSettings() {
++        regionFormatDebug = getBoolean("region-format.debug", regionFormatDebug);
++    }
+ }
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+index 87ca934473f3b9553c1b9b3ed60e0fa07838c711..a6e7af5f4148e067660e9f5beeacde3a59a1de9c 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+@@ -1,12 +1,15 @@
+ package dev.kaiijumc.kaiiju;
+ 
++import dev.kaiijumc.kaiiju.region.RegionFileFormat;
+ import org.apache.commons.lang.BooleanUtils;
+ import org.bukkit.World;
+ import org.bukkit.configuration.ConfigurationSection;
+ 
++import java.util.Arrays;
+ import java.util.List;
+ import java.util.Map;
+ import java.util.function.Predicate;
++import java.util.logging.Level;
+ 
+ import static dev.kaiijumc.kaiiju.KaiijuConfig.log;
+ 
+@@ -122,4 +125,22 @@ public class KaiijuWorldConfig {
+         final Map<String, Object> value = getMap("world-settings." + worldName + "." + path, null);
+         return value.isEmpty() ? fallback : value;
+     }
++
++    public RegionFileFormat regionFormatName = RegionFileFormat.ANVIL;
++    public int regionFormatLinearCompressionLevel = 1;
++
++    private void regionFormatSettings() {
++        regionFormatName = RegionFileFormat.fromString(getString("region-format.format", regionFormatName.name()));
++        if (regionFormatName.equals(RegionFileFormat.INVALID)) {
++            log(Level.SEVERE, "Unknown region format in kaiiju.yml: " + regionFormatName);
++            log(Level.SEVERE, "Falling back to ANVIL region file format.");
++            regionFormatName = RegionFileFormat.ANVIL;
++        }
++        regionFormatLinearCompressionLevel = getInt("region-format.linear.compression-level", regionFormatLinearCompressionLevel);
++        if (regionFormatLinearCompressionLevel > 23 || regionFormatLinearCompressionLevel < 1) {
++            log(Level.SEVERE, "Linear region compression level should be between 1 and 22 in kaiiju.yml: " + regionFormatLinearCompressionLevel);
++            log(Level.SEVERE, "Falling back to compression level 1.");
++            regionFormatLinearCompressionLevel = 1;
++        }
++    }
+ }
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/region/RegionFileFormat.java b/src/main/java/dev/kaiijumc/kaiiju/region/RegionFileFormat.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..7164d9cd03186f0657783f83de3d6435cda2b17e
+--- /dev/null
++++ b/src/main/java/dev/kaiijumc/kaiiju/region/RegionFileFormat.java
+@@ -0,0 +1,16 @@
++package dev.kaiijumc.kaiiju.region;
++
++public enum RegionFileFormat {
++    ANVIL,
++    LINEAR,
++    INVALID;
++
++    public static RegionFileFormat fromString(String format) {
++        for (RegionFileFormat rff : values()) {
++            if (rff.name().equalsIgnoreCase(format)) {
++                return rff;
++            }
++        }
++        return RegionFileFormat.INVALID;
++    }
++}
+diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
+index cc1a7c4d38874ec218f7151685ae6cc00295c2e4..06233380f7580726753de34c1fb23d6347c9ac94 100644
+--- a/src/main/java/net/minecraft/server/MinecraftServer.java
++++ b/src/main/java/net/minecraft/server/MinecraftServer.java
+@@ -893,7 +893,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+             // Paper start - rewrite chunk system
+             worldserver.save((ProgressListener) null, flush, worldserver.noSave && !force, close);
+             if (flush) {
+-                MinecraftServer.LOGGER.info("ThreadedAnvilChunkStorage ({}): All chunks are saved", worldserver.getChunkSource().chunkMap.getStorageName());
++                MinecraftServer.LOGGER.info("ThreadedChunkStorage ({}): All chunks are saved", worldserver.getChunkSource().chunkMap.getStorageName()); // Kaiiju
+             }
+             // Paper end - rewrite chunk system
+         }
+@@ -917,7 +917,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+                 //MinecraftServer.LOGGER.info("ThreadedAnvilChunkStorage ({}): All chunks are saved", worldserver2.getChunkSource().chunkMap.getStorageName()); // Paper - move up
+             }
+ 
+-            MinecraftServer.LOGGER.info("ThreadedAnvilChunkStorage: All dimensions are saved");
++            MinecraftServer.LOGGER.info("ThreadedChunkStorage: All dimensions are saved"); // Kaiiju
+         }
+ 
+         return flag3;

patches/server/0004-Add-Linear-region-format.patch

@@ -1,22 +1,23 @@
 From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
 From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
 Date: Fri, 10 Feb 2023 22:21:56 +0200
-Subject: [PATCH] Kaiiju RegionFormat Linear
+Subject: [PATCH] Add Linear region format
 
+Linear is a region file format that uses ZSTD compression instead of
+ZLIB.
+This format saves about 50% of disk space.
 Documentation: https://github.com/xymb-endcrystalme/LinearRegionFileFormatTools
-Copyright xymb@endcrystal.me
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 diff --git a/build.gradle.kts b/build.gradle.kts
-index c6a4c48b14a8c927284720b79b93ee1aa9df7da6..2ea3d2f26d4547ea5094cc63d492ea1406ffbd44 100644
+index 6d6b1973783604369c7ff95d552c43edf149a46a..a26cc214dccab8c9422f9a45e2a5eeda374c0ead 100644
 --- a/build.gradle.kts
 +++ b/build.gradle.kts
 @@ -13,6 +13,10 @@ dependencies {
          exclude("io.papermc.paper", "paper-api")
      }
-     // Pufferfish end
+     // Folia end
 +    // Kaiiju start - Linear format
-+    implementation("com.github.luben:zstd-jni:1.5.2-5")
++    implementation("com.github.luben:zstd-jni:1.5.4-1")
 +    implementation("org.lz4:lz4-java:1.8.0")
 +    // Kaiiju end
      // Paper start
@@ -37,25 +38,12 @@ index f2c27e0ac65be4b75c1d86ef6fd45fdb538d96ac..00724993d0448454d14a47652b039b88
  
          public static final class InProgressWrite {
              public long writeCounter;
-diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
-index 66bbab7ebe1738cd937963b35fad9cdda763fa88..16ebf32e0c62025958c95216531f72cc418e8d14 100644
---- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
-+++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
-@@ -192,7 +192,7 @@ public class KaiijuConfig {
-         return builder.build();
-     }
- 
--    public static List<String> regionFormatList = Arrays.asList("ANVIL");
-+    public static List<String> regionFormatList = Arrays.asList("ANVIL", "LINEAR");
-     public static String regionFormatName = "ANVIL";
- 
-     private static void regionFormatSettings() {
 diff --git a/src/main/java/dev/kaiijumc/kaiiju/region/AbstractRegionFile.java b/src/main/java/dev/kaiijumc/kaiiju/region/AbstractRegionFile.java
 new file mode 100644
-index 0000000000000000000000000000000000000000..70d53d80f474eb80acc93275ad6bf1da98ea8ae7
+index 0000000000000000000000000000000000000000..249303116d3cfadd078ebf0ae6e44bf99eed6a47
 --- /dev/null
 +++ b/src/main/java/dev/kaiijumc/kaiiju/region/AbstractRegionFile.java
-@@ -0,0 +1,32 @@
+@@ -0,0 +1,31 @@
 +package dev.kaiijumc.kaiiju.region;
 +
 +import net.minecraft.nbt.CompoundTag;
@@ -69,64 +57,54 @@ index 0000000000000000000000000000000000000000..70d53d80f474eb80acc93275ad6bf1da
 +import java.util.concurrent.locks.ReentrantLock;
 +
 +public interface AbstractRegionFile {
-+    boolean doesChunkExist(ChunkPos pos) throws Exception;
 +    void flush() throws IOException;
-+    void setStatus(int x, int z, ChunkStatus status);
 +    void clear(ChunkPos pos) throws IOException;
-+    boolean hasChunk(ChunkPos pos);
 +    void close() throws IOException;
++    void setStatus(int x, int z, ChunkStatus status);
++    void setOversized(int x, int z, boolean b) throws IOException;
++
++    boolean hasChunk(ChunkPos pos);
++    boolean doesChunkExist(ChunkPos pos) throws Exception;
++    boolean isOversized(int x, int z);
++    boolean recalculateHeader() throws IOException;
 +
 +    DataOutputStream getChunkDataOutputStream(ChunkPos pos) throws IOException;
 +    DataInputStream getChunkDataInputStream(ChunkPos pos) throws IOException;
-+    ChunkStatus getStatusIfCached(int x, int z);
-+
-+    Path getRegionFile();
-+    ReentrantLock getFileLock();
-+
-+    void setOversized(int x, int z, boolean b) throws IOException;
 +    CompoundTag getOversizedData(int x, int z) throws IOException;
-+    boolean isOversized(int x, int z);
-+    boolean recalculateHeader() throws IOException;
++    ChunkStatus getStatusIfCached(int x, int z);
++    ReentrantLock getFileLock();
++    Path getRegionFile();
 +}
 diff --git a/src/main/java/dev/kaiijumc/kaiiju/region/AbstractRegionFileFactory.java b/src/main/java/dev/kaiijumc/kaiiju/region/AbstractRegionFileFactory.java
 new file mode 100644
-index 0000000000000000000000000000000000000000..0b84b1aa4b822bdcb783285e8ea99a4f25dbbaa3
+index 0000000000000000000000000000000000000000..dcfbabf54b19a4c29d5c95830242c5c26bf2f4aa
 --- /dev/null
 +++ b/src/main/java/dev/kaiijumc/kaiiju/region/AbstractRegionFileFactory.java
-@@ -0,0 +1,38 @@
+@@ -0,0 +1,29 @@
 +package dev.kaiijumc.kaiiju.region;
 +
 +import net.minecraft.world.level.chunk.storage.RegionFile;
 +import net.minecraft.world.level.chunk.storage.RegionFileVersion;
 +
-+import java.io.File;
 +import java.io.IOException;
 +import java.nio.file.Path;
 +
 +public class AbstractRegionFileFactory {
-+    public static AbstractRegionFile getAbstractRegionFile(Path file, Path directory, boolean dsync) throws IOException {
-+        return getAbstractRegionFile(file, directory, RegionFileVersion.VERSION_DEFLATE, dsync);
++    public static AbstractRegionFile getAbstractRegionFile(int linearCompression, Path file, Path directory, boolean dsync) throws IOException {
++        return getAbstractRegionFile(linearCompression, file, directory, RegionFileVersion.VERSION_DEFLATE, dsync);
 +    }
 +
-+    public static AbstractRegionFile getAbstractRegionFile(Path file, Path directory, boolean dsync, boolean canRecalcHeader) throws IOException {
-+        return getAbstractRegionFile(file, directory, RegionFileVersion.VERSION_DEFLATE, dsync, canRecalcHeader);
++    public static AbstractRegionFile getAbstractRegionFile(int linearCompression, Path file, Path directory, boolean dsync, boolean canRecalcHeader) throws IOException {
++        return getAbstractRegionFile(linearCompression, file, directory, RegionFileVersion.VERSION_DEFLATE, dsync, canRecalcHeader);
 +    }
 +
-+    public static AbstractRegionFile getAbstractRegionFile(File file, File directory, boolean dsync) throws IOException {
-+        return getAbstractRegionFile(file.toPath(), directory.toPath(), RegionFileVersion.VERSION_DEFLATE, dsync);
++    public static AbstractRegionFile getAbstractRegionFile(int linearCompression, Path file, Path directory, RegionFileVersion outputChunkStreamVersion, boolean dsync) throws IOException {
++        return getAbstractRegionFile(linearCompression, file, directory, outputChunkStreamVersion, dsync, false);
 +    }
 +
-+    public static AbstractRegionFile getAbstractRegionFile(File file, File directory, boolean dsync, boolean canRecalcHeader) throws IOException {
-+        return getAbstractRegionFile(file.toPath(), directory.toPath(), RegionFileVersion.VERSION_DEFLATE, dsync, canRecalcHeader);
-+    }
-+
-+    public static AbstractRegionFile getAbstractRegionFile(Path file, Path directory, RegionFileVersion outputChunkStreamVersion, boolean dsync) throws IOException {
-+        return getAbstractRegionFile(file, directory, outputChunkStreamVersion, dsync, false);
-+    }
-+
-+    public static AbstractRegionFile getAbstractRegionFile(Path file, Path directory, RegionFileVersion outputChunkStreamVersion, boolean dsync, boolean canRecalcHeader) throws IOException {
-+        if (dev.kaiijumc.kaiiju.KaiijuConfig.regionFormatName.equals("LINEAR")) {
-+            return new LinearRegionFile(file, directory, outputChunkStreamVersion, dsync, canRecalcHeader);
++    public static AbstractRegionFile getAbstractRegionFile(int linearCompression, Path file, Path directory, RegionFileVersion outputChunkStreamVersion, boolean dsync, boolean canRecalcHeader) throws IOException {
++        if (file.toString().endsWith(".linear")) {
++            return new LinearRegionFile(file, linearCompression);
 +        } else {
 +            return new RegionFile(file, directory, outputChunkStreamVersion, dsync, canRecalcHeader);
 +        }
@@ -134,10 +112,10 @@ index 0000000000000000000000000000000000000000..0b84b1aa4b822bdcb783285e8ea99a4f
 +}
 diff --git a/src/main/java/dev/kaiijumc/kaiiju/region/LinearRegionFile.java b/src/main/java/dev/kaiijumc/kaiiju/region/LinearRegionFile.java
 new file mode 100644
-index 0000000000000000000000000000000000000000..ba4910d564064a1367cb9d727e8fcc52573d1944
+index 0000000000000000000000000000000000000000..b7ce89429675bde7f037793305275f4bf89d0727
 --- /dev/null
 +++ b/src/main/java/dev/kaiijumc/kaiiju/region/LinearRegionFile.java
-@@ -0,0 +1,338 @@
+@@ -0,0 +1,337 @@
 +package dev.kaiijumc.kaiiju.region;
 +
 +import com.github.luben.zstd.ZstdInputStream;
@@ -146,11 +124,9 @@ index 0000000000000000000000000000000000000000..ba4910d564064a1367cb9d727e8fcc52
 +import net.jpountz.lz4.LZ4Compressor;
 +import net.jpountz.lz4.LZ4Factory;
 +import net.jpountz.lz4.LZ4FastDecompressor;
-+import net.jpountz.xxhash.XXHashFactory;
 +import net.minecraft.nbt.CompoundTag;
 +import net.minecraft.world.level.ChunkPos;
 +import net.minecraft.world.level.chunk.ChunkStatus;
-+import net.minecraft.world.level.chunk.storage.RegionFileVersion;
 +import org.slf4j.Logger;
 +
 +import javax.annotation.Nullable;
@@ -160,20 +136,36 @@ index 0000000000000000000000000000000000000000..ba4910d564064a1367cb9d727e8fcc52
 +import java.nio.file.Path;
 +import java.nio.file.StandardCopyOption;
 +import java.util.ArrayList;
++import java.util.Arrays;
++import java.util.List;
 +import java.util.concurrent.locks.ReentrantLock;
 +
 +public class LinearRegionFile extends Thread implements AbstractRegionFile {
++    private static final long SUPERBLOCK = -4323716122432332390L;
++    private static final byte VERSION = 2;
++    private static final int HEADER_SIZE = 32;
++    private static final int FOOTER_SIZE = 8;
 +    private static final Logger LOGGER = LogUtils.getLogger();
-+    private final byte[][] buffer = new byte[32*32][];
-+    private final int[] bufferUncompressedSize = new int[32*32];
++    private static final List<Byte> SUPPORTED_VERSIONS = Arrays.asList((byte) 1, (byte) 2);
 +
-+    private final ChunkStatus[] statuses = new ChunkStatus[32 * 32];
-+    private boolean markedToSave = false;
++
++    private final byte[][] buffer = new byte[1024][];
++    private final int[] bufferUncompressedSize = new int[1024];
++
++    private final int[] chunkTimestamps = new int[1024];
 +    private final Object markedToSaveLock = new Object();
++    private final ChunkStatus[] statuses = new ChunkStatus[1024];
++
++    private final LZ4Compressor compressor;
++    private final LZ4FastDecompressor decompressor;
++
++    private boolean markedToSave = false;
 +    private boolean close = false;
-+    public Path regionFile;
++
 +    public final ReentrantLock fileLock = new ReentrantLock(true);
-+    final byte COMPRESSION_LEVEL = 1;
++    public Path regionFile;
++
++    private final int compressionLevel;
 +
 +    public Path getRegionFile() {
 +        return this.regionFile;
@@ -183,78 +175,63 @@ index 0000000000000000000000000000000000000000..ba4910d564064a1367cb9d727e8fcc52
 +        return this.fileLock;
 +    }
 +
-+    public LinearRegionFile(Path file, Path directory, RegionFileVersion outputChunkStreamVersion, boolean dsync, boolean canRecalcHeader) throws IOException {
++    public LinearRegionFile(Path file, int compression) throws IOException {
 +        this.regionFile = file;
++        this.compressionLevel = compression;
++
++        this.compressor = LZ4Factory.fastestInstance().fastCompressor();
++        this.decompressor = LZ4Factory.fastestInstance().fastDecompressor();
++
 +        File regionFile = new File(this.regionFile.toString());
 +
-+        LZ4Compressor compressor = LZ4Factory.fastestInstance().fastCompressor();
-+
-+        for (int i = 0 ; i < 32 * 32 ; i++)
-+            this.bufferUncompressedSize[i] = 0;
++        Arrays.fill(this.bufferUncompressedSize, 0);
 +
 +        if(regionFile.canRead()) {
-+            long fileLength = file.toFile().length();
 +            FileInputStream fileStream = new FileInputStream(regionFile);
 +            DataInputStream rawDataStream = new DataInputStream(fileStream);
 +
-+            long SUPERBLOCK = -4323716122432332390L;
-+            byte VERSION = 1;
-+            int HEADER_SIZE = 32;
-+            int FOOTER_SIZE = 8;
-+
 +            long superBlock = rawDataStream.readLong();
-+
-+            if (superBlock != SUPERBLOCK) {
-+                System.out.println(file.toString());
-+                System.out.println("SUPERBLOCK INVALID!");
-+                return;
-+            }
++            if (superBlock != SUPERBLOCK)
++                throw new RuntimeException("Invalid superblock: " + superBlock + " file " + file);
 +
 +            byte version = rawDataStream.readByte();
++            if (!SUPPORTED_VERSIONS.contains(version))
++                throw new RuntimeException("Invalid version: " + version + " file " + file);
 +
-+            if (version != VERSION) {
-+                System.out.println(file.toString());
-+                System.out.println("VERSION INVALID!");
-+                return;
-+            }
++            // Skip newestTimestamp (Long) + Compression level (Byte) + Chunk count (Short): Unused.
++            rawDataStream.skipBytes(11);
 +
-+            rawDataStream.readLong(); // newestTimestamp
-+            rawDataStream.readByte(); // Compression level
-+            rawDataStream.readShort(); // Chunk count
 +            int dataCount = rawDataStream.readInt();
++            long fileLength = file.toFile().length();
++            if (fileLength != HEADER_SIZE + dataCount + FOOTER_SIZE)
++                throw new IOException("Invalid file length: " + this.regionFile + " " + fileLength + " " + (HEADER_SIZE + dataCount + FOOTER_SIZE));
 +
-+            if (fileLength != HEADER_SIZE + dataCount + FOOTER_SIZE) {
-+                throw new IOException("File length invalid " + this.regionFile + " " + String.valueOf(fileLength) + " " + String.valueOf(HEADER_SIZE + dataCount + FOOTER_SIZE));
-+            }
++            rawDataStream.skipBytes(8); // Skip data hash (Long): Unused.
 +
-+            rawDataStream.readLong(); // Data Hash
 +            byte[] rawCompressed = new byte[dataCount];
-+
 +            rawDataStream.readFully(rawCompressed, 0, dataCount);
 +
 +            superBlock = rawDataStream.readLong();
-+
-+            if (superBlock != SUPERBLOCK) {
++            if (superBlock != SUPERBLOCK)
 +                throw new IOException("Footer superblock invalid " + this.regionFile);
-+            }
 +
 +            DataInputStream dataStream = new DataInputStream(new ZstdInputStream(new ByteArrayInputStream(rawCompressed)));
 +
-+            int[] starts = new int[32 * 32];
-+            for(int i = 0 ; i < 32 * 32 ; i++) {
++            int[] starts = new int[1024];
++            for(int i = 0; i < 1024; i++) {
 +                starts[i] = dataStream.readInt();
-+                dataStream.readInt(); // Skip timestamps
++                dataStream.skipBytes(4); // Skip timestamps (Int): Unused.
 +            }
 +
-+            for(int i = 0 ; i < 32 * 32 ; i++) {
++            for(int i = 0; i < 1024; i++) {
 +                if(starts[i] > 0) {
 +                    int size = starts[i];
 +                    byte[] b = new byte[size];
 +                    dataStream.readFully(b, 0, size);
 +
-+                    int maxCompressedLength = compressor.maxCompressedLength(size);
++                    int maxCompressedLength = this.compressor.maxCompressedLength(size);
 +                    byte[] compressed = new byte[maxCompressedLength];
-+                    int compressedLength = compressor.compress(b, 0, size, compressed, 0, maxCompressedLength);
++                    int compressedLength = this.compressor.compress(b, 0, size, compressed, 0, maxCompressedLength);
 +                    b = new byte[compressedLength];
 +                    System.arraycopy(compressed, 0, b, 0, compressedLength);
 +
@@ -294,9 +271,7 @@ index 0000000000000000000000000000000000000000..ba4910d564064a1367cb9d727e8fcc52
 +                }
 +                for(int i = 0 ; i < 100 ; i++) {
 +                    Thread.sleep(100);
-+                    if(close) {
-+                        return;
-+                    }
++                    if(close) return;
 +                }
 +            }
 +        } catch(InterruptedException ignored) {}
@@ -307,19 +282,16 @@ index 0000000000000000000000000000000000000000..ba4910d564064a1367cb9d727e8fcc52
 +    }
 +
 +    public synchronized void flush() throws IOException {
-+        if(!isMarkedToSave())
-+            return;
++        if(!isMarkedToSave()) return;
 +
-+        long SUPERBLOCK = -4323716122432332390L;
-+        byte VERSION = 1;
-+        long timestamp = System.currentTimeMillis() / 1000L;
++        long timestamp = getTimestamp();
 +        short chunkCount = 0;
 +
 +        File tempFile = new File(regionFile.toString() + ".tmp");
 +        FileOutputStream fileStream = new FileOutputStream(tempFile);
 +
 +        ByteArrayOutputStream zstdByteArray = new ByteArrayOutputStream();
-+        ZstdOutputStream zstdStream = new ZstdOutputStream(zstdByteArray, COMPRESSION_LEVEL);
++        ZstdOutputStream zstdStream = new ZstdOutputStream(zstdByteArray, this.compressionLevel);
 +        zstdStream.setChecksum(true);
 +        DataOutputStream zstdDataStream = new DataOutputStream(zstdStream);
 +        DataOutputStream dataStream = new DataOutputStream(fileStream);
@@ -327,25 +299,23 @@ index 0000000000000000000000000000000000000000..ba4910d564064a1367cb9d727e8fcc52
 +        dataStream.writeLong(SUPERBLOCK);
 +        dataStream.writeByte(VERSION);
 +        dataStream.writeLong(timestamp);
-+        dataStream.writeByte(COMPRESSION_LEVEL);
++        dataStream.writeByte(this.compressionLevel);
 +
-+        LZ4FastDecompressor decompressor = LZ4Factory.fastestInstance().fastDecompressor();
-+
-+        ArrayList<byte[]> byteBuffers = new ArrayList<byte[]>();
-+        for(int i = 0 ; i < 32 * 32 ; i++) {
++        ArrayList<byte[]> byteBuffers = new ArrayList<>();
++        for(int i = 0; i < 1024; i++) {
 +            if(this.bufferUncompressedSize[i] != 0) {
 +                chunkCount += 1;
 +                byte[] content = new byte[bufferUncompressedSize[i]];
-+                decompressor.decompress(buffer[i], 0, content, 0, bufferUncompressedSize[i]);
++                this.decompressor.decompress(buffer[i], 0, content, 0, bufferUncompressedSize[i]);
 +
 +                byteBuffers.add(content);
 +            } else byteBuffers.add(null);
 +        }
-+        for(int i = 0 ; i < 32 * 32 ; i++) {
-+            zstdDataStream.writeInt(this.bufferUncompressedSize[i]);
-+            zstdDataStream.writeInt(0);
++        for(int i = 0; i < 1024; i++) {
++            zstdDataStream.writeInt(this.bufferUncompressedSize[i]); // Write uncompressed size
++            zstdDataStream.writeInt(this.chunkTimestamps[i]); // Write timestamp
 +        }
-+        for(int i = 0 ; i < 32 * 32 ; i++) {
++        for(int i = 0; i < 1024; i++) {
 +            if(byteBuffers.get(i) != null)
 +                zstdDataStream.write(byteBuffers.get(i), 0, byteBuffers.get(i).length);
 +        }
@@ -356,11 +326,14 @@ index 0000000000000000000000000000000000000000..ba4910d564064a1367cb9d727e8fcc52
 +        byte[] compressed = zstdByteArray.toByteArray();
 +
 +        dataStream.writeInt(compressed.length);
-+        dataStream.writeLong(XXHashFactory.fastestInstance().hash64().hash(compressed, 0, compressed.length, 0)); // TODO: Hash the contents, not the whole thing
++        dataStream.writeLong(0);
 +
 +        dataStream.write(compressed, 0, compressed.length);
 +        dataStream.writeLong(SUPERBLOCK);
 +
++        dataStream.flush();
++        fileStream.getFD().sync();
++        fileStream.getChannel().force(true); // Ensure atomicity on Btrfs
 +        dataStream.close();
 +
 +        fileStream.close();
@@ -372,27 +345,27 @@ index 0000000000000000000000000000000000000000..ba4910d564064a1367cb9d727e8fcc52
 +    }
 +
 +    public synchronized void write(ChunkPos pos, ByteBuffer buffer) {
-+        LZ4Compressor compressor = LZ4Factory.fastestInstance().fastCompressor();
 +        try {
 +            byte[] b = toByteArray(new ByteArrayInputStream(buffer.array()));
 +            int uncompressedSize = b.length;
 +
-+            int maxCompressedLength = compressor.maxCompressedLength(b.length);
++            int maxCompressedLength = this.compressor.maxCompressedLength(b.length);
 +            byte[] compressed = new byte[maxCompressedLength];
-+            int compressedLength = compressor.compress(b, 0, b.length, compressed, 0, maxCompressedLength);
++            int compressedLength = this.compressor.compress(b, 0, b.length, compressed, 0, maxCompressedLength);
 +            b = new byte[compressedLength];
 +            System.arraycopy(compressed, 0, b, 0, compressedLength);
 +
-+            this.buffer[getChunkIndex(pos.x, pos.z)] = b;
++            int index = getChunkIndex(pos.x, pos.z);
++            this.buffer[index] = b;
++            this.chunkTimestamps[index] = getTimestamp();
 +            this.bufferUncompressedSize[getChunkIndex(pos.x, pos.z)] = uncompressedSize;
 +        } catch (IOException e) {
-+            LOGGER.error("Chunk write IOException " + e.toString() + " " + this.regionFile);
++            LOGGER.error("Chunk write IOException " + e + " " + this.regionFile);
 +        }
-+
 +        markToSave();
 +    }
 +
-+    public DataOutputStream getChunkDataOutputStream(ChunkPos pos) throws IOException {
++    public DataOutputStream getChunkDataOutputStream(ChunkPos pos) {
 +        return new DataOutputStream(new BufferedOutputStream(new LinearRegionFile.ChunkBuffer(pos)));
 +    }
 +
@@ -424,11 +397,10 @@ index 0000000000000000000000000000000000000000..ba4910d564064a1367cb9d727e8fcc52
 +    }
 +
 +    @Nullable
-+    public synchronized DataInputStream getChunkDataInputStream(ChunkPos pos) throws IOException {
++    public synchronized DataInputStream getChunkDataInputStream(ChunkPos pos) {
 +        if(this.bufferUncompressedSize[getChunkIndex(pos.x, pos.z)] != 0) {
-+            LZ4FastDecompressor decompressor = LZ4Factory.fastestInstance().fastDecompressor();
 +            byte[] content = new byte[bufferUncompressedSize[getChunkIndex(pos.x, pos.z)]];
-+            decompressor.decompress(this.buffer[getChunkIndex(pos.x, pos.z)], 0, content, 0, bufferUncompressedSize[getChunkIndex(pos.x, pos.z)]);
++            this.decompressor.decompress(this.buffer[getChunkIndex(pos.x, pos.z)], 0, content, 0, bufferUncompressedSize[getChunkIndex(pos.x, pos.z)]);
 +            return new DataInputStream(new ByteArrayInputStream(content));
 +        }
 +        return null;
@@ -442,6 +414,7 @@ index 0000000000000000000000000000000000000000..ba4910d564064a1367cb9d727e8fcc52
 +        int i = getChunkIndex(pos.x, pos.z);
 +        this.buffer[i] = null;
 +        this.bufferUncompressedSize[i] = 0;
++        this.chunkTimestamps[i] = getTimestamp();
 +        markToSave();
 +    }
 +
@@ -454,15 +427,19 @@ index 0000000000000000000000000000000000000000..ba4910d564064a1367cb9d727e8fcc52
 +        try {
 +            flush();
 +        } catch(IOException e) {
-+            throw new IOException("Region flush IOException " + e.toString() + " " + this.regionFile);
++            throw new IOException("Region flush IOException " + e + " " + this.regionFile);
 +        }
 +    }
 +
 +    private static int getChunkIndex(int x, int z) {
-+        return (x & 31) + (z & 31) * 32;
++        return (x & 31) + ((z & 31) << 5);
 +    }
 +
-+    public boolean recalculateHeader() throws IOException {
++    private static int getTimestamp() {
++        return (int) (System.currentTimeMillis() / 1000L);
++    }
++
++    public boolean recalculateHeader() {
 +        return false;
 +    }
 +
@@ -477,7 +454,7 @@ index 0000000000000000000000000000000000000000..ba4910d564064a1367cb9d727e8fcc52
 +    }
 +}
 diff --git a/src/main/java/io/papermc/paper/chunk/system/io/RegionFileIOThread.java b/src/main/java/io/papermc/paper/chunk/system/io/RegionFileIOThread.java
-index a08cde4eefe879adcee7c4118bc38f98c5097ed0..77ce70697f2a634927fd02f2a103c91a7bf09d2a 100644
+index 8a11e10b01fa012b2f98b1c193c53251e848f909..61001e76b38f8647b33e73b5cc15b4b6785cf49a 100644
 --- a/src/main/java/io/papermc/paper/chunk/system/io/RegionFileIOThread.java
 +++ b/src/main/java/io/papermc/paper/chunk/system/io/RegionFileIOThread.java
 @@ -811,7 +811,7 @@ public final class RegionFileIOThread extends PrioritisedQueueExecutorThread {
@@ -489,17 +466,17 @@ index a08cde4eefe879adcee7c4118bc38f98c5097ed0..77ce70697f2a634927fd02f2a103c91a
                  if (file == null) { // null if no regionfile exists
                      return Boolean.FALSE;
                  }
-@@ -819,7 +819,7 @@ public final class RegionFileIOThread extends PrioritisedQueueExecutorThread {
-                 return file.hasChunk(chunkPos) ? Boolean.TRUE : Boolean.FALSE;
-             });
-         } else {
+@@ -824,7 +824,7 @@ public final class RegionFileIOThread extends PrioritisedQueueExecutorThread {
+                 return Boolean.FALSE;
+             } // else: it either exists or is not known, fall back to checking the loaded region file
+ 
 -            return taskController.computeForRegionFileIfLoaded(chunkX, chunkZ, (final RegionFile file) -> {
 +            return taskController.computeForRegionFileIfLoaded(chunkX, chunkZ, (final dev.kaiijumc.kaiiju.region.AbstractRegionFile file) -> { // Kaiiju
                  if (file == null) { // null if not loaded
+                     // not sure at this point, let the I/O thread figure it out
                      return Boolean.TRUE;
-                 }
-@@ -1116,9 +1116,9 @@ public final class RegionFileIOThread extends PrioritisedQueueExecutorThread {
-             return !this.tasks.isEmpty();
+@@ -1126,9 +1126,9 @@ public final class RegionFileIOThread extends PrioritisedQueueExecutorThread {
+             return this.getCache().doesRegionFileNotExistNoIO(new ChunkPos(chunkX, chunkZ));
          }
  
 -        public <T> T computeForRegionFile(final int chunkX, final int chunkZ, final boolean existingOnly, final Function<RegionFile, T> function) {
@@ -510,7 +487,7 @@ index a08cde4eefe879adcee7c4118bc38f98c5097ed0..77ce70697f2a634927fd02f2a103c91a
              synchronized (cache) {
                  try {
                      regionFile = cache.getRegionFile(new ChunkPos(chunkX, chunkZ), existingOnly, true);
-@@ -1131,19 +1131,19 @@ public final class RegionFileIOThread extends PrioritisedQueueExecutorThread {
+@@ -1141,19 +1141,19 @@ public final class RegionFileIOThread extends PrioritisedQueueExecutorThread {
                  return function.apply(regionFile);
              } finally {
                  if (regionFile != null) {
@@ -534,7 +511,7 @@ index a08cde4eefe879adcee7c4118bc38f98c5097ed0..77ce70697f2a634927fd02f2a103c91a
                  }
              }
  
-@@ -1151,7 +1151,7 @@ public final class RegionFileIOThread extends PrioritisedQueueExecutorThread {
+@@ -1161,7 +1161,7 @@ public final class RegionFileIOThread extends PrioritisedQueueExecutorThread {
                  return function.apply(regionFile);
              } finally {
                  if (regionFile != null) {
@@ -543,32 +520,48 @@ index a08cde4eefe879adcee7c4118bc38f98c5097ed0..77ce70697f2a634927fd02f2a103c91a
                  }
              }
          }
-@@ -1287,6 +1287,12 @@ public final class RegionFileIOThread extends PrioritisedQueueExecutorThread {
-                 } catch (final ThreadDeath thr) {
-                     throw thr;
-                 } catch (final Throwable thr) {
-+                    // Kaiiju start - Linear region format
-+                    if (dev.kaiijumc.kaiiju.KaiijuConfig.regionFormatName.equals("LINEAR")) {
-+                        failedWrite = thr instanceof IOException;
-+                        LOGGER.error("Failed to write chunk data for task: " + this.toString(), thr);
-+                    } else {
-+                    // Kaiiju end
-                     if (thr instanceof RegionFileStorage.RegionFileSizeException) {
-                         final int maxSize = RegionFile.MAX_CHUNK_SIZE / (1024 * 1024);
-                         LOGGER.error("Chunk at (" + this.chunkX + "," + this.chunkZ + ") in '" + this.world.getWorld().getName() + "' exceeds max size of " + maxSize + "MiB, it has been deleted from disk.");
-@@ -1294,6 +1300,7 @@ public final class RegionFileIOThread extends PrioritisedQueueExecutorThread {
-                         failedWrite = thr instanceof IOException;
-                         LOGGER.error("Failed to write chunk data for task: " + this.toString(), thr);
-                     }
-+                    } // Kaiiju
-                 }
+diff --git a/src/main/java/io/papermc/paper/world/ThreadedWorldUpgrader.java b/src/main/java/io/papermc/paper/world/ThreadedWorldUpgrader.java
+index 513833c2ea23df5b079d157bc5cb89d5c9754c0b..abf5e2a06af9853b58ac9107cd6e9787c4185c66 100644
+--- a/src/main/java/io/papermc/paper/world/ThreadedWorldUpgrader.java
++++ b/src/main/java/io/papermc/paper/world/ThreadedWorldUpgrader.java
+@@ -84,8 +84,13 @@ public class ThreadedWorldUpgrader {
+         LOGGER.info("Found " + regionFiles.length + " regionfiles to convert");
+         LOGGER.info("Starting conversion now for world " + this.worldName);
+ 
++        // Kaiiju start
++        dev.kaiijumc.kaiiju.region.RegionFileFormat formatName = ((org.bukkit.craftbukkit.CraftWorld) org.bukkit.Bukkit.getWorld(worldName)).getHandle().kaiijuConfig.regionFormatName;
++        int linearCompression = ((org.bukkit.craftbukkit.CraftWorld) org.bukkit.Bukkit.getWorld(worldName)).getHandle().kaiijuConfig.regionFormatLinearCompressionLevel;
++        LOGGER.info("Using format " + formatName + " (" + linearCompression + ")");
++        // Kaiiju end
+         final WorldInfo info = new WorldInfo(() -> worldPersistentData,
+-                new ChunkStorage(regionFolder.toPath(), this.dataFixer, false), this.removeCaches, this.dimensionType, this.generatorKey);
++                new ChunkStorage(formatName, linearCompression, regionFolder.toPath(), this.dataFixer, false), this.removeCaches, this.dimensionType, this.generatorKey); // Kaiiju
+ 
+         long expectedChunks = (long)regionFiles.length * (32L * 32L);
  
-                 final boolean finalFailWrite = failedWrite;
 diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
-index 75965afd7b4bed23a5ecf618c7f91ff5e7ffd92f..2158c576aa47ef618b7602c2f4e351b7beb023b3 100644
+index 916bfdfb13d8f8093e1908a7c35344b83d0ee0ac..61c6bc2859235874aefac71e9e55162f0a89f29f 100644
 --- a/src/main/java/net/minecraft/server/level/ChunkMap.java
 +++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
-@@ -950,13 +950,13 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
+@@ -269,7 +269,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
+     // Paper end
+ 
+     public ChunkMap(ServerLevel world, LevelStorageSource.LevelStorageAccess session, DataFixer dataFixer, StructureTemplateManager structureTemplateManager, Executor executor, BlockableEventLoop<Runnable> mainThreadExecutor, LightChunkGetter chunkProvider, ChunkGenerator chunkGenerator, ChunkProgressListener worldGenerationProgressListener, ChunkStatusUpdateListener chunkStatusChangeListener, Supplier<DimensionDataStorage> persistentStateManagerFactory, int viewDistance, boolean dsync) {
+-        super(session.getDimensionPath(world.dimension()).resolve("region"), dataFixer, dsync);
++        super(world.getLevel().kaiijuConfig.regionFormatName, world.getLevel().kaiijuConfig.regionFormatLinearCompressionLevel, session.getDimensionPath(world.dimension()).resolve("region"), dataFixer, dsync); // Kaiiju
+         // Paper - rewrite chunk system
+         this.tickingGenerated = new AtomicInteger();
+         //this.playerMap = new PlayerMap(); // Folia - region threading
+@@ -314,7 +314,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
+         this.lightEngine = new ThreadedLevelLightEngine(chunkProvider, this, this.level.dimensionType().hasSkyLight(), null, null); // Paper - rewrite chunk system
+         this.distanceManager = new ChunkMap.ChunkDistanceManager(executor, mainThreadExecutor);
+         this.overworldDataStorage = persistentStateManagerFactory;
+-        this.poiManager = new PoiManager(path.resolve("poi"), dataFixer, dsync, iregistrycustom, world);
++        this.poiManager = new PoiManager(this.level.kaiijuConfig.regionFormatName, this.level.kaiijuConfig.regionFormatLinearCompressionLevel, path.resolve("poi"), dataFixer, dsync, iregistrycustom, world); // Kaiiju
+         this.setViewDistance(viewDistance);
+         // Paper start
+         this.dataRegionManager = new io.papermc.paper.chunk.SingleThreadChunkRegionManager(this.level, 2, (1.0 / 3.0), 1, 6, "Data", DataRegionData::new, DataRegionSectionData::new);
+@@ -850,13 +850,13 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
  
      // Paper start - chunk status cache "api"
      public ChunkStatus getChunkStatusOnDiskIfCached(ChunkPos chunkPos) {
@@ -584,7 +577,7 @@ index 75965afd7b4bed23a5ecf618c7f91ff5e7ffd92f..2158c576aa47ef618b7602c2f4e351b7
  
          if (regionFile == null || !regionFileCache.chunkExists(chunkPos)) {
              return null;
-@@ -974,7 +974,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
+@@ -874,7 +874,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
      }
  
      public void updateChunkStatusOnDisk(ChunkPos chunkPos, @Nullable CompoundTag compound) throws IOException {
@@ -593,50 +586,112 @@ index 75965afd7b4bed23a5ecf618c7f91ff5e7ffd92f..2158c576aa47ef618b7602c2f4e351b7
  
          regionFile.setStatus(chunkPos.x, chunkPos.z, ChunkSerializer.getStatus(compound));
      }
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index b126435b07572e7b8f41647a0179164b680e9e64..19fb8ca8a6f699ce596103070db726fcb427865e 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
++++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -426,8 +426,8 @@ public class ServerLevel extends Level implements WorldGenLevel {
+ 
+     private static final class EntityRegionFileStorage extends net.minecraft.world.level.chunk.storage.RegionFileStorage {
+ 
+-        public EntityRegionFileStorage(Path directory, boolean dsync) {
+-            super(directory, dsync);
++        public EntityRegionFileStorage(String format, int linearCompression, Path directory, boolean dsync) { // Kaiiju
++            super(format, linearCompression, directory, dsync); // Kaiiju
+         }
+ 
+         protected void write(ChunkPos pos, net.minecraft.nbt.CompoundTag nbt) throws IOException {
+@@ -666,7 +666,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
+         // CraftBukkit end
+         boolean flag2 = minecraftserver.forceSynchronousWrites();
+         DataFixer datafixer = minecraftserver.getFixerUpper();
+-        this.entityStorage = new EntityRegionFileStorage(convertable_conversionsession.getDimensionPath(resourcekey).resolve("entities"), flag2); // Paper - rewrite chunk system  //EntityPersistentStorage<Entity> entitypersistentstorage = new EntityStorage(this, convertable_conversionsession.getDimensionPath(resourcekey).resolve("entities"), datafixer, flag2, minecraftserver);
++        this.entityStorage = new EntityRegionFileStorage(this.getLevel().kaiijuConfig.regionFormatName, this.getLevel().kaiijuConfig.regionFormatLinearCompressionLevel, convertable_conversionsession.getDimensionPath(resourcekey).resolve("entities"), flag2); // Paper - rewrite chunk system  //EntityPersistentStorage<Entity> entitypersistentstorage = new EntityStorage(this, convertable_conversionsession.getDimensionPath(resourcekey).resolve("entities"), datafixer, flag2, minecraftserver); // Kaiiju
+ 
+         // this.entityManager = new PersistentEntitySectionManager<>(Entity.class, new ServerLevel.EntityCallbacks(), entitypersistentstorage, this.entitySliceManager); // Paper // Paper - rewrite chunk system
+         StructureTemplateManager structuretemplatemanager = minecraftserver.getStructureManager();
 diff --git a/src/main/java/net/minecraft/util/worldupdate/WorldUpgrader.java b/src/main/java/net/minecraft/util/worldupdate/WorldUpgrader.java
-index 759b125cc1251b9b4f1f443c9f70c482ef5b32f8..aca60733c87f7f95b5719ded24eb8cf697f9d83e 100644
+index e0bfeebeaac1aaea64bc07cdfdf7790e3e43ca7b..ac35e7eb8cb5f19391a18eb9d6b5ba26769ce2f6 100644
 --- a/src/main/java/net/minecraft/util/worldupdate/WorldUpgrader.java
 +++ b/src/main/java/net/minecraft/util/worldupdate/WorldUpgrader.java
-@@ -61,10 +61,17 @@ public class WorldUpgrader {
+@@ -61,7 +61,7 @@ public class WorldUpgrader {
      private volatile int skipped;
      private final Object2FloatMap<ResourceKey<LevelStem>> progressMap = Object2FloatMaps.synchronize(new Object2FloatOpenCustomHashMap(Util.identityStrategy())); // CraftBukkit
      private volatile Component status = Component.translatable("optimizeWorld.stage.counting");
 -    public static final Pattern REGEX = Pattern.compile("^r\\.(-?[0-9]+)\\.(-?[0-9]+)\\.mca$");
-+    public static Pattern REGEX; // Kaiiju
++    public static Pattern REGEX = Pattern.compile("^r\\.(-?[0-9]+)\\.(-?[0-9]+)\\.(linear | mca)$"); // Kaiiju
      private final DimensionDataStorage overworldDataStorage;
  
      public WorldUpgrader(LevelStorageSource.LevelStorageAccess session, DataFixer dataFixer, Registry<LevelStem> dimensionOptionsRegistry, boolean eraseCache) {
-+        // Kaiiju start
-+        if (dev.kaiijumc.kaiiju.KaiijuConfig.regionFormatName.equals("LINEAR")) {
-+            this.REGEX = Pattern.compile("^r\\.(-?[0-9]+)\\.(-?[0-9]+)\\.linear$");
-+        } else {
-+            this.REGEX = Pattern.compile("^r\\.(-?[0-9]+)\\.(-?[0-9]+)\\.mca$");
-+        }
-+        // Kaiiju end
-         this.dimensions = dimensionOptionsRegistry;
-         this.levels = (Set) dimensionOptionsRegistry.registryKeySet().stream().collect(Collectors.toUnmodifiableSet()); // CraftBukkit
-         this.eraseCache = eraseCache;
-@@ -235,6 +242,11 @@ public class WorldUpgrader {
+@@ -116,7 +116,12 @@ public class WorldUpgrader {
+                 ResourceKey<LevelStem> resourcekey1 = (ResourceKey) iterator1.next(); // CraftBukkit
+                 Path path = this.levelStorage.getDimensionPath((ResourceKey) null); // CraftBukkit
+ 
+-                builder1.put(resourcekey1, new ChunkStorage(path.resolve("region"), this.dataFixer, true));
++                // Kaiiju start
++                String worldName = this.levelStorage.getLevelId();
++                dev.kaiijumc.kaiiju.region.RegionFileFormat formatName = ((org.bukkit.craftbukkit.CraftWorld) org.bukkit.Bukkit.getWorld(worldName)).getHandle().kaiijuConfig.regionFormatName;
++                int linearCompression = ((org.bukkit.craftbukkit.CraftWorld) org.bukkit.Bukkit.getWorld(worldName)).getHandle().kaiijuConfig.regionFormatLinearCompressionLevel;
++                builder1.put(resourcekey1, new ChunkStorage(formatName, linearCompression, path.resolve("region"), this.dataFixer, true));
++                // Kaiiju end
+             }
+ 
+             ImmutableMap<ResourceKey<LevelStem>, ChunkStorage> immutablemap1 = builder1.build(); // CraftBukkit
+@@ -235,7 +240,7 @@ public class WorldUpgrader {
          File file = this.levelStorage.getDimensionPath((ResourceKey) null).toFile(); // CraftBukkit
          File file1 = new File(file, "region");
          File[] afile = file1.listFiles((file2, s) -> {
-+            // Kaiiju start
-+            if (dev.kaiijumc.kaiiju.KaiijuConfig.regionFormatName.equals("LINEAR")) {
-+                return s.endsWith(".linear");
-+            }
-+            // Kaiiju end
-             return s.endsWith(".mca");
+-            return s.endsWith(".mca");
++            return s.endsWith(".mca") || s.endsWith(".linear"); // Kaiiju
          });
  
-@@ -254,7 +266,7 @@ public class WorldUpgrader {
+         if (afile == null) {
+@@ -254,7 +259,11 @@ public class WorldUpgrader {
                      int l = Integer.parseInt(matcher.group(2)) << 5;
  
                      try {
 -                        RegionFile regionfile = new RegionFile(file2.toPath(), file1.toPath(), true);
-+                        dev.kaiijumc.kaiiju.region.AbstractRegionFile regionfile = dev.kaiijumc.kaiiju.region.AbstractRegionFileFactory.getAbstractRegionFile(file2.toPath(), file1.toPath(), true); // Kaiiju
++                        // Kaiiju start
++                        String worldName = this.levelStorage.getLevelId();
++                        int linearCompression = ((org.bukkit.craftbukkit.CraftWorld) org.bukkit.Bukkit.getWorld(worldName)).getHandle().kaiijuConfig.regionFormatLinearCompressionLevel;
++                        dev.kaiijumc.kaiiju.region.AbstractRegionFile regionfile = dev.kaiijumc.kaiiju.region.AbstractRegionFileFactory.getAbstractRegionFile(linearCompression, file2.toPath(), file1.toPath(), true);
++                        // Kaiiju end
  
                          try {
                              for (int i1 = 0; i1 < 32; ++i1) {
+diff --git a/src/main/java/net/minecraft/world/entity/ai/village/poi/PoiManager.java b/src/main/java/net/minecraft/world/entity/ai/village/poi/PoiManager.java
+index 5150d447c9dc2f539446749c8bee102050bab4ed..187ff795192c7eb56dffafa1ff6fa3068ac341c3 100644
+--- a/src/main/java/net/minecraft/world/entity/ai/village/poi/PoiManager.java
++++ b/src/main/java/net/minecraft/world/entity/ai/village/poi/PoiManager.java
+@@ -59,8 +59,8 @@ public class PoiManager extends SectionStorage<PoiSection> {
+     // Paper end - rewrite chunk system
+ 
+ 
+-    public PoiManager(Path path, DataFixer dataFixer, boolean dsync, RegistryAccess registryManager, LevelHeightAccessor world) {
+-        super(path, PoiSection::codec, PoiSection::new, dataFixer, DataFixTypes.POI_CHUNK, dsync, registryManager, world);
++    public PoiManager(dev.kaiijumc.kaiiju.region.RegionFileFormat formatName, int linearCompression, Path path, DataFixer dataFixer, boolean dsync, RegistryAccess registryManager, LevelHeightAccessor world) { // Kaiiju
++        super(formatName, linearCompression, path, PoiSection::codec, PoiSection::new, dataFixer, DataFixTypes.POI_CHUNK, dsync, registryManager, world); // Kaiiju
+         this.world = (net.minecraft.server.level.ServerLevel)world; // Paper - rewrite chunk system
+     }
+ 
+diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
+index 8ebecb588058da174b0e0e19e54fcddfeeca1422..1d880f27dd147da683fc30ed6f1bfa43ecdb7d93 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
++++ b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
+@@ -37,11 +37,11 @@ public class ChunkStorage implements AutoCloseable {
+     public final RegionFileStorage regionFileCache;
+     // Paper end - async chunk loading
+ 
+-    public ChunkStorage(Path directory, DataFixer dataFixer, boolean dsync) {
++    public ChunkStorage(dev.kaiijumc.kaiiju.region.RegionFileFormat format, int linearCompression, Path directory, DataFixer dataFixer, boolean dsync) { // Kaiiju
+         this.fixerUpper = dataFixer;
+         // Paper start - async chunk io
+         // remove IO worker
+-        this.regionFileCache = new RegionFileStorage(directory, dsync, true); // Paper - nuke IOWorker // Paper
++        this.regionFileCache = new RegionFileStorage(format, linearCompression, directory, dsync, true); // Paper - nuke IOWorker // Paper
+         // Paper end - async chunk io
+     }
+ 
 diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
 index dcfe090c269d4cbcc2eb1b6f85392848bb34656c..d42c320179ae055b8675d1ce6ce1788ecafb8e9d 100644
 --- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
@@ -699,42 +754,56 @@ index dcfe090c269d4cbcc2eb1b6f85392848bb34656c..d42c320179ae055b8675d1ce6ce1788e
          try (DataInputStream out = new DataInputStream(new java.io.BufferedInputStream(new InflaterInputStream(Files.newInputStream(file))))) {
              return NbtIo.read((java.io.DataInput) out);
 diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
-index bd502ca721de0cab438d995efa00ad0554c0d2fe..37242c6225795271e0ba6a853252f2da747cf30c 100644
+index 81554c321a78258ff78da3801f00d0fb90b9e113..b35a6a7daf768af3bc453fe18deec823f4b63a3a 100644
 --- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
 +++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
-@@ -21,8 +21,9 @@ import net.minecraft.world.level.ChunkPos;
- public class RegionFileStorage implements AutoCloseable {
+@@ -22,9 +22,13 @@ public class RegionFileStorage implements AutoCloseable {
  
      public static final String ANVIL_EXTENSION = ".mca";
-+    public static final String LINEAR_EXTENSION = ".linear"; // Kaiiju
      private static final int MAX_CACHE_SIZE = 256;
 -    public final Long2ObjectLinkedOpenHashMap<RegionFile> regionCache = new Long2ObjectLinkedOpenHashMap();
 +    public final Long2ObjectLinkedOpenHashMap<dev.kaiijumc.kaiiju.region.AbstractRegionFile> regionCache = new Long2ObjectLinkedOpenHashMap(); // Kaiiju
      private final Path folder;
      private final boolean sync;
++    // Kaiiju start - Per world chunk format
++    public final dev.kaiijumc.kaiiju.region.RegionFileFormat format;
++    public final int linearCompression;
++    // Kaiiju end
+     private final boolean isChunkData; // Paper
  
-@@ -42,9 +43,17 @@ public class RegionFileStorage implements AutoCloseable {
-     // Paper start
-     public static @Nullable ChunkPos getRegionFileCoordinates(Path file) {
-         String fileName = file.getFileName().toString();
+     // Paper start - cache regionfile does not exist state
+@@ -56,11 +60,15 @@ public class RegionFileStorage implements AutoCloseable {
+     }
+     // Paper end - cache regionfile does not exist state
+ 
+-    protected RegionFileStorage(Path directory, boolean dsync) { // Paper - protected constructor
++    protected RegionFileStorage(dev.kaiijumc.kaiiju.region.RegionFileFormat format, int linearCompression, Path directory, boolean dsync) { // Paper - protected constructor
+         // Paper start - add isChunkData param
+-        this(directory, dsync, false);
++        this(format, linearCompression, directory, dsync, false);
+     }
+-    RegionFileStorage(Path directory, boolean dsync, boolean isChunkData) {
++    RegionFileStorage(dev.kaiijumc.kaiiju.region.RegionFileFormat format, int linearCompression, Path directory, boolean dsync, boolean isChunkData) { // Kaiiju
 +        // Kaiiju start
-+        if (dev.kaiijumc.kaiiju.KaiijuConfig.regionFormatName.equals("LINEAR")) {
-+            if (!fileName.startsWith("r.") || !fileName.endsWith(".linear")) {
-+                return null;
-+            }
-+        } else {
++        this.format = format;
++        this.linearCompression = linearCompression;
 +        // Kaiiju end
-         if (!fileName.startsWith("r.") || !fileName.endsWith(".mca")) {
+         this.isChunkData = isChunkData;
+         // Paper end - add isChunkData param
+         this.folder = directory;
+@@ -71,7 +79,7 @@ public class RegionFileStorage implements AutoCloseable {
+     @Nullable
+     public static ChunkPos getRegionFileCoordinates(Path file) {
+         String fileName = file.getFileName().toString();
+-        if (!fileName.startsWith("r.") || !fileName.endsWith(".mca")) {
++        if (!fileName.startsWith("r.") || !fileName.endsWith(".mca") || !fileName.endsWith(".linear")) { // Kaiiju
              return null;
          }
-+        } // Kaiiju
  
-         String[] split = fileName.split("\\.");
- 
-@@ -62,49 +71,57 @@ public class RegionFileStorage implements AutoCloseable {
-         }
-     }
+@@ -93,29 +101,29 @@ public class RegionFileStorage implements AutoCloseable {
+     // Paper end
  
+     // Paper start
 -    public synchronized RegionFile getRegionFileIfLoaded(ChunkPos chunkcoordintpair) {
 +    public synchronized dev.kaiijumc.kaiiju.region.AbstractRegionFile getRegionFileIfLoaded(ChunkPos chunkcoordintpair) { // Kaiiju
          return this.regionCache.getAndMoveToFirst(ChunkPos.asLong(chunkcoordintpair.getRegionX(), chunkcoordintpair.getRegionZ()));
@@ -754,7 +823,7 @@ index bd502ca721de0cab438d995efa00ad0554c0d2fe..37242c6225795271e0ba6a853252f2da
 -    public synchronized RegionFile getRegionFile(ChunkPos chunkcoordintpair, boolean existingOnly, boolean lock) throws IOException {
 +    public synchronized dev.kaiijumc.kaiiju.region.AbstractRegionFile getRegionFile(ChunkPos chunkcoordintpair, boolean existingOnly, boolean lock) throws IOException { // Kaiiju
          // Paper end
-         long i = ChunkPos.asLong(chunkcoordintpair.getRegionX(), chunkcoordintpair.getRegionZ());
+         long i = ChunkPos.asLong(chunkcoordintpair.getRegionX(), chunkcoordintpair.getRegionZ()); final long regionPos = i; // Paper - OBFHELPER
 -        RegionFile regionfile = (RegionFile) this.regionCache.getAndMoveToFirst(i);
 +        dev.kaiijumc.kaiiju.region.AbstractRegionFile regionfile = this.regionCache.getAndMoveToFirst(i); // Kaiiju
  
@@ -767,28 +836,53 @@ index bd502ca721de0cab438d995efa00ad0554c0d2fe..37242c6225795271e0ba6a853252f2da
              }
              // Paper end
              return regionfile;
-         } else {
+@@ -126,28 +134,49 @@ public class RegionFileStorage implements AutoCloseable {
+             }
+             // Paper end - cache regionfile does not exist state
              if (this.regionCache.size() >= io.papermc.paper.configuration.GlobalConfiguration.get().misc.regionFileCacheSize) { // Paper - configurable
 -                ((RegionFile) this.regionCache.removeLast()).close();
 +                this.regionCache.removeLast().close(); // Kaiiju
              }
  
-             FileUtil.createDirectoriesSafe(this.folder);
+             // Paper - only create directory if not existing only - moved down
              Path path = this.folder;
              int j = chunkcoordintpair.getRegionX();
 -            Path path1 = path.resolve("r." + j + "." + chunkcoordintpair.getRegionZ() + ".mca"); // Paper - diff on change
-+            // Kaiiju start
+-            if (existingOnly && !java.nio.file.Files.exists(path1)) { // Paper start - cache regionfile does not exist state
+-                this.markNonExisting(regionPos);
+-                return null; // CraftBukkit
++            // Kaiiju start - Polyglot
 +            //Path path1 = path.resolve("r." + j + "." + chunkcoordintpair.getRegionZ() + ".mca"); // Paper - diff on change
 +            Path path1;
-+            if (dev.kaiijumc.kaiiju.KaiijuConfig.regionFormatName.equals("LINEAR")) {
-+                path1 = path.resolve("r." + j + "." + chunkcoordintpair.getRegionZ() + ".linear");
-+            } else {
-+                path1 = path.resolve("r." + j + "." + chunkcoordintpair.getRegionZ() + ".mca");
-+            }
++            if (existingOnly) {
++                Path anvil = path.resolve("r." + j + "." + chunkcoordintpair.getRegionZ() + ".mca");
++                Path linear = path.resolve("r." + j + "." + chunkcoordintpair.getRegionZ() + ".linear");
++                if (java.nio.file.Files.exists(anvil)) path1 = anvil;
++                else if (java.nio.file.Files.exists(linear)) path1 = linear;
++                else {
++                    this.markNonExisting(regionPos);
++                    return null;
++                }
 +            // Kaiiju end
-             if (existingOnly && !java.nio.file.Files.exists(path1)) return null; // CraftBukkit
+             } else {
++                // Kaiiju start - Polyglot
++                String extension = switch (this.format) {
++                    case LINEAR -> "linear";
++                    default -> "mca";
++                };
++                path1 = path.resolve("r." + j + "." + chunkcoordintpair.getRegionZ() + "." + extension);
++                // Kaiiju end
+                 this.createRegionFile(regionPos);
+             }
++            // Kaiiju start - Polyglot
++            if (dev.kaiijumc.kaiiju.KaiijuConfig.regionFormatDebug)
++                org.bukkit.Bukkit.getLogger().info("Opening file " + path1 + " with format " + this.format + " (existingOnly = " + existingOnly + ")");
++            // Kaiiju end
++
+             // Paper end - cache regionfile does not exist state
+             FileUtil.createDirectoriesSafe(this.folder); // Paper - only create directory if not existing only - moved from above
 -            RegionFile regionfile1 = new RegionFile(path1, this.folder, this.sync, this.isChunkData); // Paper - allow for chunk regionfiles to regen header
-+            dev.kaiijumc.kaiiju.region.AbstractRegionFile regionfile1 = dev.kaiijumc.kaiiju.region.AbstractRegionFileFactory.getAbstractRegionFile(path1, this.folder, this.sync, this.isChunkData); // Paper - allow for chunk regionfiles to regen header // Kaiiju
++            dev.kaiijumc.kaiiju.region.AbstractRegionFile regionfile1 = dev.kaiijumc.kaiiju.region.AbstractRegionFileFactory.getAbstractRegionFile(this.linearCompression, path1, this.folder, this.sync, this.isChunkData); // Paper - allow for chunk regionfiles to regen header // Kaiiju
  
              this.regionCache.putAndMoveToFirst(i, regionfile1);
              // Paper start
@@ -799,7 +893,7 @@ index bd502ca721de0cab438d995efa00ad0554c0d2fe..37242c6225795271e0ba6a853252f2da
              }
              // Paper end
              return regionfile1;
-@@ -132,7 +149,7 @@ public class RegionFileStorage implements AutoCloseable {
+@@ -175,7 +204,7 @@ public class RegionFileStorage implements AutoCloseable {
      }
  
  
@@ -808,7 +902,7 @@ index bd502ca721de0cab438d995efa00ad0554c0d2fe..37242c6225795271e0ba6a853252f2da
          synchronized (regionfile) {
              try (DataInputStream datainputstream = regionfile.getChunkDataInputStream(chunkCoordinate)) {
                  CompoundTag oversizedData = regionfile.getOversizedData(chunkCoordinate.x, chunkCoordinate.z);
-@@ -179,14 +196,14 @@ public class RegionFileStorage implements AutoCloseable {
+@@ -222,14 +251,14 @@ public class RegionFileStorage implements AutoCloseable {
      @Nullable
      public CompoundTag read(ChunkPos pos) throws IOException {
          // CraftBukkit start - SPIGOT-5680: There's no good reason to preemptively create files on read, save that for writing
@@ -825,7 +919,7 @@ index bd502ca721de0cab438d995efa00ad0554c0d2fe..37242c6225795271e0ba6a853252f2da
          // We add the regionfile parameter to avoid the potential deadlock (on fileLock) if we went back to obtain a regionfile
          // if we decide to re-read
          // Paper end
-@@ -196,7 +213,7 @@ public class RegionFileStorage implements AutoCloseable {
+@@ -239,7 +268,7 @@ public class RegionFileStorage implements AutoCloseable {
  
          // Paper start
          if (regionfile.isOversized(pos.x, pos.z)) {
@@ -834,7 +928,7 @@ index bd502ca721de0cab438d995efa00ad0554c0d2fe..37242c6225795271e0ba6a853252f2da
              return readOversizedChunk(regionfile, pos);
          }
          // Paper end
-@@ -210,12 +227,12 @@ public class RegionFileStorage implements AutoCloseable {
+@@ -253,12 +282,12 @@ public class RegionFileStorage implements AutoCloseable {
                      if (this.isChunkData) {
                          ChunkPos chunkPos = ChunkSerializer.getChunkCoordinate(nbttagcompound);
                          if (!chunkPos.equals(pos)) {
@@ -850,7 +944,7 @@ index bd502ca721de0cab438d995efa00ad0554c0d2fe..37242c6225795271e0ba6a853252f2da
                              return null;
                          }
                      }
-@@ -249,13 +266,13 @@ public class RegionFileStorage implements AutoCloseable {
+@@ -292,13 +321,13 @@ public class RegionFileStorage implements AutoCloseable {
  
          return nbttagcompound;
          } finally { // Paper start
@@ -866,7 +960,7 @@ index bd502ca721de0cab438d995efa00ad0554c0d2fe..37242c6225795271e0ba6a853252f2da
          if (regionfile == null) {
              return;
          }
-@@ -285,7 +302,7 @@ public class RegionFileStorage implements AutoCloseable {
+@@ -328,7 +357,7 @@ public class RegionFileStorage implements AutoCloseable {
      }
  
      protected void write(ChunkPos pos, @Nullable CompoundTag nbt) throws IOException {
@@ -875,7 +969,7 @@ index bd502ca721de0cab438d995efa00ad0554c0d2fe..37242c6225795271e0ba6a853252f2da
          if (nbt == null && regionfile == null) {
              return;
          }
-@@ -335,7 +352,7 @@ public class RegionFileStorage implements AutoCloseable {
+@@ -378,7 +407,7 @@ public class RegionFileStorage implements AutoCloseable {
          }
          // Paper end
          } finally { // Paper start
@@ -884,7 +978,7 @@ index bd502ca721de0cab438d995efa00ad0554c0d2fe..37242c6225795271e0ba6a853252f2da
          } // Paper end
      }
  
-@@ -344,7 +361,7 @@ public class RegionFileStorage implements AutoCloseable {
+@@ -387,7 +416,7 @@ public class RegionFileStorage implements AutoCloseable {
          ObjectIterator objectiterator = this.regionCache.values().iterator();
  
          while (objectiterator.hasNext()) {
@@ -893,7 +987,7 @@ index bd502ca721de0cab438d995efa00ad0554c0d2fe..37242c6225795271e0ba6a853252f2da
  
              try {
                  regionfile.close();
-@@ -360,7 +377,7 @@ public class RegionFileStorage implements AutoCloseable {
+@@ -403,7 +432,7 @@ public class RegionFileStorage implements AutoCloseable {
          ObjectIterator objectiterator = this.regionCache.values().iterator();
  
          while (objectiterator.hasNext()) {
@@ -902,11 +996,26 @@ index bd502ca721de0cab438d995efa00ad0554c0d2fe..37242c6225795271e0ba6a853252f2da
  
              regionfile.flush();
          }
+diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/SectionStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/SectionStorage.java
+index 5561b8499a0503b850974b1dc309edfb80219549..9394d191c56aab78e63fd3f283efedd69384e323 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/storage/SectionStorage.java
++++ b/src/main/java/net/minecraft/world/level/chunk/storage/SectionStorage.java
+@@ -47,8 +47,8 @@ public class SectionStorage<R> extends RegionFileStorage implements AutoCloseabl
+     public final RegistryAccess registryAccess; // Paper - rewrite chunk system
+     protected final LevelHeightAccessor levelHeightAccessor;
+ 
+-    public SectionStorage(Path path, Function<Runnable, Codec<R>> codecFactory, Function<Runnable, R> factory, DataFixer dataFixer, DataFixTypes dataFixTypes, boolean dsync, RegistryAccess dynamicRegistryManager, LevelHeightAccessor world) {
+-        super(path, dsync); // Paper - remove mojang I/O thread
++    public SectionStorage(dev.kaiijumc.kaiiju.region.RegionFileFormat format, int linearCompression, Path path, Function<Runnable, Codec<R>> codecFactory, Function<Runnable, R> factory, DataFixer dataFixer, DataFixTypes dataFixTypes, boolean dsync, RegistryAccess dynamicRegistryManager, LevelHeightAccessor world) { // Kaiiju
++        super(format, linearCompression, path, dsync); // Paper - remove mojang I/O thread // Kaiiju
+         this.codec = codecFactory;
+         this.factory = factory;
+         this.fixerUpper = dataFixer;
 diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
-index b17bc6482d2bd97d2e48d3967dea72605cf13164..2a13629ffb60dc60706da446e6dc7f3683d0410b 100644
+index 23b8dde3cd185b372d4adc97201a422cebbbe804..6012ea6d3fb6e731ff491ef134085013c2c6075c 100644
 --- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
 +++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
-@@ -552,7 +552,7 @@ public class CraftWorld extends CraftRegionAccessor implements World {
+@@ -561,7 +561,7 @@ public class CraftWorld extends CraftRegionAccessor implements World {
                  return true;
              }
  

patches/server/0005-Kaiiju-Lobotomize-Configuration.patch

@@ -1,20 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
-Date: Sat, 11 Feb 2023 02:10:20 +0200
-Subject: [PATCH] Kaiiju Lobotomize Configuration
-
-
-diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
-index dd4c3ca77acb3aeefc69b8eb948b8b202ff87a19..ac4440f8d2bd30e3e074ef797d5138b64996fcbb 100644
---- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
-+++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
-@@ -122,4 +122,7 @@ public class KaiijuWorldConfig {
-         final Map<String, Object> value = getMap("world-settings." + worldName + "." + path, null);
-         return value.isEmpty() ? fallback : value;
-     }
--}
-\ No newline at end of file
-+
-+    private void lobotomizeSettings() {
-+    }
-+}

patches/server/0005-Network-configuration.patch

@@ -0,0 +1,18 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Thu, 16 Feb 2023 01:38:59 +0200
+Subject: [PATCH] Network configuration
+
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+index b86c90cc3601e666998cfa12f44515f605bb53eb..7c6d43d8a360530344ef296f4477750c8a298607 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+@@ -198,4 +198,7 @@ public class KaiijuConfig {
+     private static void regionFormatSettings() {
+         regionFormatDebug = getBoolean("region-format.debug", regionFormatDebug);
+     }
++
++    private static void networkSettings() {
++    }
+ }

patches/server/0006-Kaiiju-Lobotomize-Animal.patch

@@ -1,338 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
-Date: Sat, 11 Feb 2023 06:29:15 +0200
-Subject: [PATCH] Kaiiju Lobotomize Animal
-
-Inspired by "Lobotomized animals" by @KioProject123
-Checks might be a nuisance to performance.
-
-diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
-index ac4440f8d2bd30e3e074ef797d5138b64996fcbb..dbbba258dbdc465b89c71508d76c5c596fd03bea 100644
---- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
-+++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
-@@ -123,6 +123,15 @@ public class KaiijuWorldConfig {
-         return value.isEmpty() ? fallback : value;
-     }
- 
-+    public boolean lobotomizeAnimalEnabled = false;
-+    public int lobotomizeAnimalCheckInterval = 100;
-+    public boolean lobotomizeAnimalLookAtPlayer = false;
-+    public boolean lobotomizeAnimalFloat = true;
-+
-     private void lobotomizeSettings() {
-+        lobotomizeAnimalEnabled = getBoolean("lobotomize.animal.enabled", lobotomizeAnimalEnabled);
-+        lobotomizeAnimalCheckInterval = getInt("lobotomize.animal.check-interval", lobotomizeAnimalCheckInterval);
-+        lobotomizeAnimalLookAtPlayer = getBoolean("lobotomize.animal.look-at-player", lobotomizeAnimalLookAtPlayer);
-+        lobotomizeAnimalFloat = getBoolean("lobotomize.animal.float", lobotomizeAnimalFloat);
-     }
- }
-diff --git a/src/main/java/dev/kaiijumc/kaiiju/entity/Lobotomized.java b/src/main/java/dev/kaiijumc/kaiiju/entity/Lobotomized.java
-new file mode 100644
-index 0000000000000000000000000000000000000000..8912f25e94d5e7510d965aa02b73c87e0b75fb51
---- /dev/null
-+++ b/src/main/java/dev/kaiijumc/kaiiju/entity/Lobotomized.java
-@@ -0,0 +1,56 @@
-+package dev.kaiijumc.kaiiju.entity;
-+
-+import net.minecraft.core.BlockPos;
-+import net.minecraft.world.entity.LivingEntity;
-+import net.minecraft.world.level.Level;
-+import net.minecraft.world.level.block.state.BlockState;
-+import net.minecraft.world.level.pathfinder.PathComputationType;
-+
-+public class Lobotomized {
-+    private boolean isLobotomized = false;
-+    private int notLobotomizedCount = 0;
-+
-+    public boolean isLobotomized() {
-+        return this.isLobotomized;
-+    }
-+
-+    public void setLobotomized(boolean b) {
-+        this.isLobotomized = b;
-+    }
-+
-+    public boolean checkLobotomized(LivingEntity livingEntity) {
-+        Level level = livingEntity.getLevel();
-+        int interval = level.kaiijuConfig.lobotomizeAnimalCheckInterval;
-+        if (this.notLobotomizedCount > 3) {
-+            // check half as often if not lobotomized for the last 3+ consecutive checks
-+            interval *= 2;
-+        }
-+        if ((livingEntity.getId() + livingEntity.tickCount) % interval == 0) {
-+            this.isLobotomized = livingEntity.isOnGround() && !canTravelFrom(new BlockPos(livingEntity.getX(), livingEntity.getY() + 0.5D, livingEntity.getZ()), level, livingEntity.getBbHeight() <= 1.0F);
-+
-+            if (this.isLobotomized) {
-+                this.notLobotomizedCount = 0;
-+            } else {
-+                this.notLobotomizedCount++;
-+            }
-+        }
-+        return this.isLobotomized;
-+    }
-+
-+    private boolean canTravelFrom(BlockPos pos, Level level, boolean ignoreTop) {
-+        return canTravelTo(pos.east(), level, ignoreTop)
-+            || canTravelTo(pos.west(), level, ignoreTop)
-+            || canTravelTo(pos.north(), level, ignoreTop)
-+            || canTravelTo(pos.south(), level, ignoreTop);
-+    }
-+
-+    private boolean canTravelTo(BlockPos pos, Level level, boolean ignoreTop) {
-+        BlockState bottom = level.getBlockStateIfLoaded(pos);
-+        if (bottom == null) return false; // Chunk not loaded
-+        if (!bottom.isPathfindable(level, pos, PathComputationType.LAND)) return false;
-+        if (ignoreTop) return true;
-+        BlockState top = level.getBlockState(pos.above());
-+        if (!top.isPathfindable(level, pos, PathComputationType.LAND)) return false;
-+        return true;
-+    }
-+}
-diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
-index b2e4b5c463ceb19356da18e7fc52d20801b674cd..32ea0b1542ef374db3290e01978d7965715b9de6 100644
---- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
-+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
-@@ -308,6 +308,8 @@ public abstract class LivingEntity extends Entity {
-         this.brain = this.makeBrain(new Dynamic(dynamicopsnbt, (Tag) dynamicopsnbt.createMap((Map) ImmutableMap.of(dynamicopsnbt.createString("memories"), (Tag) dynamicopsnbt.emptyMap()))));
-     }
- 
-+    public boolean isLobotomized() { return false; } // Kaiiju
-+
-     protected void initAttributes() {}// Purpur
- 
-     public Brain<?> getBrain() {
-diff --git a/src/main/java/net/minecraft/world/entity/ai/goal/FloatGoal.java b/src/main/java/net/minecraft/world/entity/ai/goal/FloatGoal.java
-index 7093c62be53fe99ed9880fc8ddaa07440fe4f715..2acbb26af2c24b2f4c569d55e8ba44a068fd9d86 100644
---- a/src/main/java/net/minecraft/world/entity/ai/goal/FloatGoal.java
-+++ b/src/main/java/net/minecraft/world/entity/ai/goal/FloatGoal.java
-@@ -16,6 +16,7 @@ public class FloatGoal extends Goal {
- 
-     @Override
-     public boolean canUse() {
-+        if (!this.mob.getLevel().kaiijuConfig.lobotomizeAnimalFloat && this.mob.isLobotomized()) return false; // Kaiiju
-         return this.mob.isInWater() && this.mob.getFluidHeight(FluidTags.WATER) > this.mob.getFluidJumpThreshold() || this.mob.isInLava();
-     }
- 
-diff --git a/src/main/java/net/minecraft/world/entity/ai/goal/FollowParentGoal.java b/src/main/java/net/minecraft/world/entity/ai/goal/FollowParentGoal.java
-index a668d5263586f955a5656ac66bcc7fe8cc51fe00..c195e60a7773f106775cded4f1c3ed51a69ca2f5 100644
---- a/src/main/java/net/minecraft/world/entity/ai/goal/FollowParentGoal.java
-+++ b/src/main/java/net/minecraft/world/entity/ai/goal/FollowParentGoal.java
-@@ -21,6 +21,7 @@ public class FollowParentGoal extends Goal {
- 
-     @Override
-     public boolean canUse() {
-+        if (this.animal.isLobotomized()) return false; // Kaiiju
-         if (this.animal.getAge() >= 0) {
-             return false;
-         } else {
-@@ -51,6 +52,7 @@ public class FollowParentGoal extends Goal {
- 
-     @Override
-     public boolean canContinueToUse() {
-+        if (this.animal.isLobotomized()) return false; // Kaiiju
-         if (this.animal.getAge() >= 0) {
-             return false;
-         } else if (!this.parent.isAlive()) {
-diff --git a/src/main/java/net/minecraft/world/entity/ai/goal/LookAtPlayerGoal.java b/src/main/java/net/minecraft/world/entity/ai/goal/LookAtPlayerGoal.java
-index 8b189d7587303263efa1790066e5a83edd45f9d7..1304fc96834e4ce7156076fd893993a0aa75cbbc 100644
---- a/src/main/java/net/minecraft/world/entity/ai/goal/LookAtPlayerGoal.java
-+++ b/src/main/java/net/minecraft/world/entity/ai/goal/LookAtPlayerGoal.java
-@@ -48,6 +48,7 @@ public class LookAtPlayerGoal extends Goal {
- 
-     @Override
-     public boolean canUse() {
-+        if (!mob.getLevel().kaiijuConfig.lobotomizeAnimalLookAtPlayer && this.mob.isLobotomized()) return false; // Kaiiju
-         if (this.mob.getRandom().nextFloat() >= this.probability) {
-             return false;
-         } else {
-diff --git a/src/main/java/net/minecraft/world/entity/ai/goal/PanicGoal.java b/src/main/java/net/minecraft/world/entity/ai/goal/PanicGoal.java
-index 268b7457c2a93af6d36c1c5f623c5856f94a7af1..f1469e424f7bdf4e5813f250c0eae673db0b9049 100644
---- a/src/main/java/net/minecraft/world/entity/ai/goal/PanicGoal.java
-+++ b/src/main/java/net/minecraft/world/entity/ai/goal/PanicGoal.java
-@@ -29,6 +29,7 @@ public class PanicGoal extends Goal {
- 
-     @Override
-     public boolean canUse() {
-+        if (this.mob.isLobotomized()) return false; // Kaiiju
-         if (!this.shouldPanic()) {
-             return false;
-         } else {
-@@ -81,6 +82,7 @@ public class PanicGoal extends Goal {
- 
-     @Override
-     public boolean canContinueToUse() {
-+        if (this.mob.isLobotomized()) return false; // Kaiiju
-         // CraftBukkit start - introduce a temporary timeout hack until this is fixed properly
-         if ((this.mob.tickCount - this.mob.lastHurtByMobTimestamp) > 100) {
-             this.mob.setLastHurtByMob((LivingEntity) null);
-diff --git a/src/main/java/net/minecraft/world/entity/ai/goal/RandomStrollGoal.java b/src/main/java/net/minecraft/world/entity/ai/goal/RandomStrollGoal.java
-index 216929c838446c3c14d9b9906ffa625ef35fcbc8..3ea2e7c44018ec63b8f17fd3e5e3a23e2b1f72e4 100644
---- a/src/main/java/net/minecraft/world/entity/ai/goal/RandomStrollGoal.java
-+++ b/src/main/java/net/minecraft/world/entity/ai/goal/RandomStrollGoal.java
-@@ -35,6 +35,7 @@ public class RandomStrollGoal extends Goal {
- 
-     @Override
-     public boolean canUse() {
-+        if (this.mob.isLobotomized()) return false; // Kaiiju
-         if (this.mob.isVehicle()) {
-             return false;
-         } else {
-@@ -68,6 +69,7 @@ public class RandomStrollGoal extends Goal {
- 
-     @Override
-     public boolean canContinueToUse() {
-+        if (this.mob.isLobotomized()) return false; // Kaiiju
-         return !this.mob.getNavigation().isDone() && !this.mob.isVehicle();
-     }
- 
-diff --git a/src/main/java/net/minecraft/world/entity/ai/goal/TemptGoal.java b/src/main/java/net/minecraft/world/entity/ai/goal/TemptGoal.java
-index 2cbc9adc8e417def48be03d08174a5833068ec65..3234d5bf3b9ae01dbe8e26a0a3f21ff875fe6769 100644
---- a/src/main/java/net/minecraft/world/entity/ai/goal/TemptGoal.java
-+++ b/src/main/java/net/minecraft/world/entity/ai/goal/TemptGoal.java
-@@ -43,6 +43,7 @@ public class TemptGoal extends Goal {
- 
-     @Override
-     public boolean canUse() {
-+        if (this.mob.isLobotomized()) return false; // Kaiiju
-         if (this.calmDown > 0) {
-             --this.calmDown;
-             return false;
-@@ -67,6 +68,7 @@ public class TemptGoal extends Goal {
- 
-     @Override
-     public boolean canContinueToUse() {
-+        if (this.mob.isLobotomized()) return false; // Kaiiju
-         if (this.canScare()) {
-             if (this.mob.distanceToSqr((Entity) this.player) < 36.0D) {
-                 if (this.player.distanceToSqr(this.px, this.py, this.pz) > 0.010000000000000002D) {
-diff --git a/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java b/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java
-index 2f2d9bb31194618ef5bba39cd1cbe7c4919e82c5..0d8f1f063b76357374022e4496ce0646757b150e 100644
---- a/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java
-+++ b/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java
-@@ -197,6 +197,7 @@ public abstract class PathNavigation {
-     // Paper end
- 
-     public boolean moveTo(Entity entity, double speed) {
-+        if (this.mob.isLobotomized()) return false; // Kaiiju
-         // Paper start - Pathfinding optimizations
-         if (this.pathfindFailures > 10 && this.path == null && net.minecraft.server.MinecraftServer.currentTick < this.lastFailure + 40) {
-             return false;
-@@ -217,6 +218,7 @@ public abstract class PathNavigation {
-     }
- 
-     public boolean moveTo(@Nullable Path path, double speed) {
-+        if (this.mob.isLobotomized()) return false; // Kaiiju
-         if (path == null) {
-             this.path = null;
-             return false;
-diff --git a/src/main/java/net/minecraft/world/entity/animal/Animal.java b/src/main/java/net/minecraft/world/entity/animal/Animal.java
-index 2ac88f06ebb79e515cd9934ac1e3e2c8003d9e3c..d89c0db4c4173d8558dc4f8b15ddb5815ef7c09e 100644
---- a/src/main/java/net/minecraft/world/entity/animal/Animal.java
-+++ b/src/main/java/net/minecraft/world/entity/animal/Animal.java
-@@ -13,7 +13,6 @@ import net.minecraft.tags.BlockTags;
- import net.minecraft.util.RandomSource;
- import net.minecraft.world.InteractionHand;
- import net.minecraft.world.InteractionResult;
--import net.minecraft.world.damagesource.DamageSource;
- import net.minecraft.world.entity.AgeableMob;
- import net.minecraft.world.entity.EntityType;
- import net.minecraft.world.entity.ExperienceOrb;
-@@ -39,6 +38,7 @@ public abstract class Animal extends AgeableMob {
-     @Nullable
-     public UUID loveCause;
-     public ItemStack breedItem; // CraftBukkit - Add breedItem variable
-+    protected dev.kaiijumc.kaiiju.entity.Lobotomized lobotomized = new dev.kaiijumc.kaiiju.entity.Lobotomized(); // Kaiiju
-     public abstract int getPurpurBreedTime(); // Purpur
- 
-     protected Animal(EntityType<? extends Animal> type, Level world) {
-@@ -74,8 +74,32 @@ public abstract class Animal extends AgeableMob {
-             }
-         }
- 
-+        this.lobotomized.checkLobotomized(this); // Kaiiju
-     }
- 
-+    // Kaiiju start
-+    @Override
-+    public void travel(net.minecraft.world.phys.Vec3 vec3) {
-+        if (!this.isLobotomized() || net.minecraft.server.MinecraftServer.currentTick % 100 == 0) {
-+            super.travel(vec3);
-+        }
-+    }
-+
-+    @Override
-+    public boolean isCollidable(boolean ignoreClimbing) {
-+        if (!this.isLobotomized() || net.minecraft.server.MinecraftServer.currentTick % 20 == 0) {
-+            return super.isCollidable(ignoreClimbing);
-+        }
-+        return false;
-+    }
-+
-+    @Override
-+    public boolean isLobotomized() {
-+        if (!this.level.kaiijuConfig.lobotomizeAnimalEnabled) return false;
-+        return this.lobotomized.isLobotomized();
-+    }
-+    // Kaiiju end
-+
-     /* CraftBukkit start
-     // Function disabled as it has no special function anymore after
-     // setSitting is disabled.
-@@ -102,6 +126,7 @@ public abstract class Animal extends AgeableMob {
-         if (this.loveCause != null) {
-             nbt.putUUID("LoveCause", this.loveCause);
-         }
-+        nbt.putBoolean("Kaiiju.Lobotomized", this.lobotomized.isLobotomized()); // Kaiiju
- 
-     }
- 
-@@ -115,6 +140,13 @@ public abstract class Animal extends AgeableMob {
-         super.readAdditionalSaveData(nbt);
-         this.inLove = nbt.getInt("InLove");
-         this.loveCause = nbt.hasUUID("LoveCause") ? nbt.getUUID("LoveCause") : null;
-+        // Kaiiju start
-+        boolean isLobotomized = nbt.getBoolean("Kaiiju.Lobotomized");
-+        this.lobotomized.setLobotomized(isLobotomized);
-+        if (isLobotomized) {
-+            this.onGround = true;
-+        }
-+        // Kaiiju end
-     }
- 
-     public static boolean checkAnimalSpawnRules(EntityType<? extends Animal> type, LevelAccessor world, MobSpawnType spawnReason, BlockPos pos, RandomSource random) {
-diff --git a/src/main/java/net/minecraft/world/entity/animal/Bee.java b/src/main/java/net/minecraft/world/entity/animal/Bee.java
-index 87bd7991a81a2e30ecfccb60e614d7f13acd3744..1c2db953155498606f1e052580e7aa9ca846a53c 100644
---- a/src/main/java/net/minecraft/world/entity/animal/Bee.java
-+++ b/src/main/java/net/minecraft/world/entity/animal/Bee.java
-@@ -1047,6 +1047,7 @@ public class Bee extends Animal implements NeutralMob, FlyingAnimal {
- 
-         @Override
-         public boolean canBeeUse() {
-+            if (Bee.this.isLobotomized()) return false; // Kaiiju
-             return Bee.this.remainingCooldownBeforeLocatingNewHive == 0 && !Bee.this.hasHive() && Bee.this.wantsToEnterHive();
-         }
- 
-@@ -1113,6 +1114,7 @@ public class Bee extends Animal implements NeutralMob, FlyingAnimal {
- 
-         @Override
-         public boolean canBeeUse() {
-+            if (Bee.this.isLobotomized()) return false; // Kaiiju
-             return Bee.this.hivePos != null && !Bee.this.hasRestriction() && Bee.this.wantsToEnterHive() && !this.hasReachedTarget(Bee.this.hivePos) && Bee.this.level.getBlockState(Bee.this.hivePos).is(BlockTags.BEEHIVES);
-         }
- 
-@@ -1229,6 +1231,7 @@ public class Bee extends Animal implements NeutralMob, FlyingAnimal {
- 
-         @Override
-         public boolean canBeeUse() {
-+            if (Bee.this.isLobotomized()) return false; // Kaiiju
-             return Bee.this.savedFlowerPos != null && !Bee.this.hasRestriction() && this.wantsToGoToKnownFlower() && Bee.this.isFlowerValid(Bee.this.savedFlowerPos) && !Bee.this.closerThan(Bee.this.savedFlowerPos, 2);
-         }
- 
-@@ -1281,6 +1284,7 @@ public class Bee extends Animal implements NeutralMob, FlyingAnimal {
- 
-         @Override
-         public boolean canBeeUse() {
-+            if (Bee.this.isLobotomized()) return false; // Kaiiju
-             return Bee.this.getCropsGrownSincePollination() >= 10 ? false : (Bee.this.random.nextFloat() < 0.3F ? false : Bee.this.hasNectar() && Bee.this.isHiveValid());
-         }
- 

patches/server/0006-Send-null-entity-packets.patch

@@ -0,0 +1,59 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Thu, 16 Feb 2023 01:49:54 +0200
+Subject: [PATCH] Send null entity packets
+
+This is from Purpur. Don't send null entity packets.
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+index 7c6d43d8a360530344ef296f4477750c8a298607..ab08e11f13921163b8ff1ff51ff9e9b86d2b47c7 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+@@ -198,7 +198,10 @@ public class KaiijuConfig {
+     private static void regionFormatSettings() {
+         regionFormatDebug = getBoolean("region-format.debug", regionFormatDebug);
+     }
++    
++    public static boolean sendNullEntityPackets = true;
+ 
+     private static void networkSettings() {
++        sendNullEntityPackets = getBoolean("network.send-null-entity-packets", sendNullEntityPackets);
+     }
+ }
+diff --git a/src/main/java/net/minecraft/server/level/ServerEntity.java b/src/main/java/net/minecraft/server/level/ServerEntity.java
+index 6670e657e08e130f7e0368f418379fd1ece00cdf..5558d87ef182f82be7877455dd027082c6a80632 100644
+--- a/src/main/java/net/minecraft/server/level/ServerEntity.java
++++ b/src/main/java/net/minecraft/server/level/ServerEntity.java
+@@ -201,6 +201,11 @@ public class ServerEntity {
+                         flag4 = true;
+                         flag5 = true;
+                     }
++                    // Kaiiju start - Don't send null move entity packets
++                    if (!dev.kaiijumc.kaiiju.KaiijuConfig.sendNullEntityPackets && isNullMovePacket(packet1)) {
++                        packet1 = null;
++                    }
++                    // Kaiiju end
+                 }
+ 
+                 if ((this.trackDelta || this.entity.hasImpulse || this.entity instanceof LivingEntity && ((LivingEntity) this.entity).isFallFlying()) && this.tickCount > 0) {
+@@ -273,6 +278,20 @@ public class ServerEntity {
+         });
+     }
+ 
++    // Kaiiju start - Don't send null move entity packets
++    private boolean isNullMovePacket(Packet<?> packet) {
++        if (packet instanceof ClientboundMoveEntityPacket move) {
++            if (packet instanceof ClientboundMoveEntityPacket.Pos)
++                return move.getXa() == 0 && move.getYa() == 0 && move.getZa() == 0;
++            if (packet instanceof ClientboundMoveEntityPacket.PosRot)
++                return move.getXa() == 0 && move.getYa() == 0 && move.getZa() == 0 && move.getyRot() == 0 && move.getxRot() == 0;
++            if (packet instanceof ClientboundMoveEntityPacket.Rot)
++                return move.getyRot() == 0 && move.getxRot() == 0;
++        }
++        return false;
++    }
++    // Kaiiju end
++
+     public void removePairing(ServerPlayer player) {
+         this.entity.stopSeenByPlayer(player);
+         player.connection.send(new ClientboundRemoveEntitiesPacket(new int[]{this.entity.getId()}));

patches/server/0007-Alternate-Keepalive.patch

@@ -0,0 +1,73 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Fri, 31 Mar 2023 01:52:44 +0300
+Subject: [PATCH] Alternate Keepalive
+
+Don't kick players because 1 keepalive is lost.
+This patch is from Purpur.
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+index ab08e11f13921163b8ff1ff51ff9e9b86d2b47c7..b42a3466f145a92608c8746fd4beb529b4a60b01 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+@@ -200,8 +200,10 @@ public class KaiijuConfig {
+     }
+     
+     public static boolean sendNullEntityPackets = true;
++    public static boolean alternateKeepAlive = false;
+ 
+     private static void networkSettings() {
+         sendNullEntityPackets = getBoolean("network.send-null-entity-packets", sendNullEntityPackets);
++        alternateKeepAlive = getBoolean("network.alternate-keepalive", alternateKeepAlive);
+     }
+ }
+diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+index 82ffef34b596a98faa245ba401e67add9d9ac7d0..b2ed157a17cada4887e543a23ee65642eb54637e 100644
+--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+@@ -263,6 +263,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
+     private long keepAliveTime = Util.getMillis();
+     private boolean keepAlivePending;
+     private long keepAliveChallenge;
++    private it.unimi.dsi.fastutil.longs.LongList keepAlives = new it.unimi.dsi.fastutil.longs.LongArrayList(); // Kaiiju
+     // CraftBukkit start - multithreaded fields
+     private final AtomicInteger chatSpamTickCount = new AtomicInteger();
+     private final java.util.concurrent.atomic.AtomicInteger tabSpamLimiter = new java.util.concurrent.atomic.AtomicInteger(); // Paper - configurable tab spam limits
+@@ -355,6 +356,20 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
+         long currentTime = Util.getMillis();
+         long elapsedTime = currentTime - this.keepAliveTime;
+ 
++        // Kaiiju start
++        if (dev.kaiijumc.kaiiju.KaiijuConfig.alternateKeepAlive) {
++            if (elapsedTime >= 1000L) { // 1 second
++                if (!processedDisconnect && keepAlives.size() * 1000L >= KEEPALIVE_LIMIT) {
++                    LOGGER.warn("{} was kicked due to keepalive timeout!", this.player.getScoreboardName());
++                    disconnect(Component.translatable("disconnect.timeout"), org.bukkit.event.player.PlayerKickEvent.Cause.TIMEOUT);
++                } else {
++                    keepAliveTime = currentTime; // hijack this field for 1 second intervals
++                    keepAlives.add(currentTime); // currentTime is ID
++                    send(new ClientboundKeepAlivePacket(currentTime));
++                }
++            }
++        } else
++        // Kaiiju end
+         if (this.keepAlivePending) {
+             if (!this.processedDisconnect && elapsedTime >= KEEPALIVE_LIMIT) { // check keepalive limit, don't fire if already disconnected
+                 ServerGamePacketListenerImpl.LOGGER.warn("{} was kicked due to keepalive timeout!", this.player.getScoreboardName()); // more info
+@@ -3514,6 +3529,16 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
+ 
+     @Override
+     public void handleKeepAlive(ServerboundKeepAlivePacket packet) {
++        // Kaiiju start
++        if (dev.kaiijumc.kaiiju.KaiijuConfig.alternateKeepAlive) {
++            long id = packet.getId();
++            if (keepAlives.size() > 0 && keepAlives.contains(id)) {
++                int ping = (int) (Util.getMillis() - id);
++                player.latency = (player.latency * 3 + ping) / 4;
++                keepAlives.clear(); // we got a valid response, lets roll with it and forget the rest
++            }
++        } else
++        // Kaiiju end
+         //PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel()); // CraftBukkit // Paper - This shouldn't be on the main thread
+         if (this.keepAlivePending && packet.getId() == this.keepAliveChallenge) {
+             int i = (int) (Util.getMillis() - this.keepAliveTime);

patches/server/0007-Kaiiju-Lobotomize-Villager.patch

@@ -1,157 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: kugge <sofiane.djerbi38@gmail.com>
-Date: Mon, 13 Feb 2023 00:53:40 +0100
-Subject: [PATCH] Kaiiju Lobotomize Villager
-
-
-diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
-index dbbba258dbdc465b89c71508d76c5c596fd03bea..a213a3c447cd69b5dd88eefd48c2caa6d19f5abc 100644
---- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
-+++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
-@@ -127,11 +127,21 @@ public class KaiijuWorldConfig {
-     public int lobotomizeAnimalCheckInterval = 100;
-     public boolean lobotomizeAnimalLookAtPlayer = false;
-     public boolean lobotomizeAnimalFloat = true;
-+    public boolean lobotomizeVillagerEnabled = false;
-+    public int lobotomizeVillagerCheckInterval = 100;
-+    public boolean lobotomizeVillagerCheckCanJump = true;
-+    public boolean lobotomizeVillagerCheckOnBed = true;
-+    public boolean lobotomizeVillagerCheckActionBlock = true;
- 
-     private void lobotomizeSettings() {
-         lobotomizeAnimalEnabled = getBoolean("lobotomize.animal.enabled", lobotomizeAnimalEnabled);
-         lobotomizeAnimalCheckInterval = getInt("lobotomize.animal.check-interval", lobotomizeAnimalCheckInterval);
-         lobotomizeAnimalLookAtPlayer = getBoolean("lobotomize.animal.look-at-player", lobotomizeAnimalLookAtPlayer);
-         lobotomizeAnimalFloat = getBoolean("lobotomize.animal.float", lobotomizeAnimalFloat);
-+        lobotomizeVillagerEnabled = getBoolean("lobotomize.villager.enabled", lobotomizeVillagerEnabled);
-+        lobotomizeVillagerCheckInterval = getInt("lobotomize.villager.check-interval", lobotomizeVillagerCheckInterval);
-+        lobotomizeVillagerCheckCanJump = getBoolean("lobotomize.villager.check-can-jump", lobotomizeVillagerCheckCanJump);
-+        lobotomizeVillagerCheckOnBed = getBoolean("lobotomize.villager.check-on-bed", lobotomizeVillagerCheckOnBed);
-+        lobotomizeVillagerCheckActionBlock = getBoolean("lobotomize.villager.check-action-block", lobotomizeVillagerCheckActionBlock);
-     }
- }
-diff --git a/src/main/java/net/minecraft/world/entity/npc/Villager.java b/src/main/java/net/minecraft/world/entity/npc/Villager.java
-index aed1d9ccffe471b6c2a1d52d2d3d097f6431318b..0227e8d4f810c6fb90779cb3d257ca04ec927b79 100644
---- a/src/main/java/net/minecraft/world/entity/npc/Villager.java
-+++ b/src/main/java/net/minecraft/world/entity/npc/Villager.java
-@@ -200,14 +200,14 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
-     }
- 
-     private boolean checkLobotomized() {
--        int interval = this.level.purpurConfig.villagerLobotomizeCheckInterval;
-+        int interval = this.level.kaiijuConfig.lobotomizeVillagerCheckInterval; // Kaiiju
-         if (this.notLobotomizedCount > 3) {
-             // check half as often if not lobotomized for the last 3+ consecutive checks
-             interval *= 2;
-         }
--        if (this.level.getGameTime() % interval == 0) {
-+        if ((this.getId() + this.tickCount) % interval == 0) { // Kaiiju - Avoid check lags
-             // offset Y for short blocks like dirt_path/farmland
--            this.isLobotomized = !canTravelFrom(new BlockPos(getX(), getY() + 0.0625D, getZ()));
-+            this.isLobotomized = needLobotomy(); // Kaiiju - Override
- 
-             if (this.isLobotomized) {
-                 this.notLobotomizedCount = 0;
-@@ -219,9 +219,76 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
-     }
- 
-     private boolean canTravelFrom(BlockPos pos) {
--        return canTravelTo(pos.east()) || canTravelTo(pos.west()) || canTravelTo(pos.north()) || canTravelTo(pos.south());
-+        return canInteractAt(pos.east()) || canInteractAt(pos.west()) || canInteractAt(pos.north()) || canInteractAt(pos.south()); // Kaiiju
-     }
- 
-+    // Kaiiju start - Customize canTravelTo checks
-+    private boolean needLobotomy() {
-+        if (this.isSleeping()) return false;
-+        if (this.level.kaiijuConfig.lobotomizeVillagerCheckOnBed && isOnBed()) return false;
-+        return !canTravelFrom(new BlockPos(getX(), getY() + 0.5D, getZ()));
-+    }
-+
-+    private boolean canInteractAt(BlockPos pos) {
-+        net.minecraft.world.level.block.state.BlockState top = null;
-+        // Check if mob can jump over block
-+        if (this.level.kaiijuConfig.lobotomizeVillagerCheckCanJump && this.canJump()) {
-+            top = this.level.getBlockStateIfLoaded(pos.above());
-+            if (top == null) return false;
-+            if (top.isPathfindable(level, pos, net.minecraft.world.level.pathfinder.PathComputationType.LAND)) {
-+                net.minecraft.world.level.block.state.BlockState above = this.level.getBlockState(pos.above(2));
-+                if (above.isPathfindable(level, pos, net.minecraft.world.level.pathfinder.PathComputationType.LAND)) return true;
-+            }
-+        }
-+        // Otherwise, check if mob can interact with bottom block
-+        net.minecraft.world.level.block.state.BlockState bottom = this.level.getBlockStateIfLoaded(pos);
-+        if (bottom == null) return false;
-+        net.minecraft.world.level.block.Block bottomBlock = bottom.getBlock();
-+        if (isTallBlock(bottomBlock)) return false;
-+        if (this.level.kaiijuConfig.lobotomizeVillagerCheckActionBlock && isInteractiveBlock(bottomBlock, this.getVillagerData().getProfession())) return true;
-+        // If he can't interact, check if he can travel
-+        if (!bottom.isPathfindable(level, pos, net.minecraft.world.level.pathfinder.PathComputationType.LAND)) return false;
-+        if (top == null) top = this.level.getBlockState(pos.above());
-+        return top.isPathfindable(level, pos, net.minecraft.world.level.pathfinder.PathComputationType.LAND);
-+    }
-+
-+    private boolean canJump() {
-+        BlockPos pos = new BlockPos(getX(), getY() + 2.5D, getZ());
-+        net.minecraft.world.level.block.Block above = this.level.getBlockIfLoaded(pos);
-+        return !above.hasCollision;
-+    }
-+
-+    private boolean isOnBed() {
-+        BlockPos pos = new BlockPos(getX(), getY() - 0.5D, getZ());
-+        net.minecraft.world.level.block.Block below = this.level.getBlockIfLoaded(pos);
-+        return below instanceof net.minecraft.world.level.block.BedBlock;
-+    }
-+
-+    private static boolean isInteractiveBlock(net.minecraft.world.level.block.Block block, VillagerProfession profession) {
-+        if (block instanceof net.minecraft.world.level.block.BedBlock) return true;
-+        if (profession == VillagerProfession.NITWIT) return false;
-+        return (block instanceof net.minecraft.world.level.block.BlastFurnaceBlock && profession != VillagerProfession.ARMORER) ||
-+               (block instanceof net.minecraft.world.level.block.SmokerBlock && profession != VillagerProfession.BUTCHER) ||
-+               (block instanceof net.minecraft.world.level.block.CartographyTableBlock && profession != VillagerProfession.CARTOGRAPHER) ||
-+               (block instanceof net.minecraft.world.level.block.BrewingStandBlock && profession != VillagerProfession.CLERIC) ||
-+               (block instanceof net.minecraft.world.level.block.ComposterBlock && profession != VillagerProfession.FARMER) ||
-+               (block instanceof net.minecraft.world.level.block.BarrelBlock && profession != VillagerProfession.FISHERMAN) ||
-+               (block instanceof net.minecraft.world.level.block.FletchingTableBlock && profession != VillagerProfession.FLETCHER) ||
-+               (block instanceof net.minecraft.world.level.block.CauldronBlock && profession != VillagerProfession.LEATHERWORKER) ||
-+               (block instanceof net.minecraft.world.level.block.LecternBlock && profession != VillagerProfession.LIBRARIAN) ||
-+               (block instanceof net.minecraft.world.level.block.StonecutterBlock && profession != VillagerProfession.MASON) ||
-+               (block instanceof net.minecraft.world.level.block.LoomBlock && profession != VillagerProfession.SHEPHERD) ||
-+               (block instanceof net.minecraft.world.level.block.SmithingTableBlock && profession != VillagerProfession.TOOLSMITH) ||
-+               (block instanceof net.minecraft.world.level.block.GrindstoneBlock && profession != VillagerProfession.WEAPONSMITH);
-+    }
-+
-+    private static boolean isTallBlock(net.minecraft.world.level.block.Block block) {
-+        return block instanceof net.minecraft.world.level.block.FenceBlock ||
-+               block instanceof net.minecraft.world.level.block.FenceGateBlock ||
-+               block instanceof net.minecraft.world.level.block.WallBlock;
-+    }
-+    // Kaiiju end
-+
-     private boolean canTravelTo(BlockPos pos) {
-         net.minecraft.world.level.block.state.BlockState state = this.level.getBlockStateIfLoaded(pos);
-         if (state == null) {
-@@ -337,7 +404,7 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
-     protected void mobTick(boolean inactive) {
-         //this.level.getProfiler().push("villagerBrain"); // Purpur
-         // Purpur start
--        if (this.level.purpurConfig.villagerLobotomizeEnabled) {
-+        if (this.level.kaiijuConfig.lobotomizeVillagerEnabled) { // Kaiiju - Override
-             // treat as inactive if lobotomized
-             inactive = inactive || checkLobotomized();
-         } else {
-@@ -647,6 +714,7 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
-         if (this.assignProfessionWhenSpawned) {
-             nbt.putBoolean("AssignProfessionWhenSpawned", true);
-         }
-+        nbt.putBoolean("Kaiiju.Lobotomized", this.isLobotomized()); // Kaiiju
- 
-     }
- 
-@@ -687,6 +755,7 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
-         if (nbt.contains("AssignProfessionWhenSpawned")) {
-             this.assignProfessionWhenSpawned = nbt.getBoolean("AssignProfessionWhenSpawned");
-         }
-+        this.isLobotomized = nbt.getBoolean("Kaiiju.Lobotomized"); // Kaiiju
- 
-     }
- 

patches/server/0008-Optimization-Configuration.patch

@@ -0,0 +1,30 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: kugge <sofiane.djerbi38@gmail.com>
+Date: Wed, 21 Jun 2023 17:26:24 +0200
+Subject: [PATCH] Optimization Configuration
+
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+index b42a3466f145a92608c8746fd4beb529b4a60b01..7b56cc1275319cf07a4a25280e0ff900bdca8afa 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+@@ -206,4 +206,7 @@ public class KaiijuConfig {
+         sendNullEntityPackets = getBoolean("network.send-null-entity-packets", sendNullEntityPackets);
+         alternateKeepAlive = getBoolean("network.alternate-keepalive", alternateKeepAlive);
+     }
++
++    private static void optimizationSettings() {
++    }
+ }
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+index a6e7af5f4148e067660e9f5beeacde3a59a1de9c..6bd14857e0b0ef233f17f1a6e3e0fb313d59f641 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+@@ -143,4 +143,7 @@ public class KaiijuWorldConfig {
+             regionFormatLinearCompressionLevel = 1;
+         }
+     }
++
++    private void optimizationSettings() {
++    }
+ }

patches/server/0009-Gameplay-Configuration.patch

@@ -0,0 +1,30 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Sat, 8 Apr 2023 23:32:34 +0300
+Subject: [PATCH] Gameplay Configuration
+
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+index 7b56cc1275319cf07a4a25280e0ff900bdca8afa..fdc4cdbf34ed10f6523dceac7c1931d3ca4eb522 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+@@ -209,4 +209,7 @@ public class KaiijuConfig {
+ 
+     private static void optimizationSettings() {
+     }
++
++    private static void gameplaySettings() {
++    }
+ }
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+index 6bd14857e0b0ef233f17f1a6e3e0fb313d59f641..05f9c01131e78927d88f1170c3eda4adf25ac8ba 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+@@ -146,4 +146,7 @@ public class KaiijuWorldConfig {
+ 
+     private void optimizationSettings() {
+     }
++
++    private void gameplaySettings() {
++    }
+ }

patches/server/0010-Shulker-drop-contents-when-destroyed.patch

@@ -0,0 +1,36 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Xymb <xymb@endcrystal.me>
+Date: Sat, 8 Apr 2023 23:38:13 +0300
+Subject: [PATCH] Shulker drop contents when destroyed
+
+Don't drop shulker contents when shulker items are destroyed (by cactus,
+lava..)
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+index 05f9c01131e78927d88f1170c3eda4adf25ac8ba..55dcbb48450b24f80e0a04bedeb54f64e94ebb9e 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+@@ -144,7 +144,10 @@ public class KaiijuWorldConfig {
+         }
+     }
+ 
++    public boolean shulkerBoxDropContentsWhenDestroyed = true;
++
+     private void optimizationSettings() {
++        shulkerBoxDropContentsWhenDestroyed = getBoolean("optimization.shulker-box-drop-contents-when-destroyed", shulkerBoxDropContentsWhenDestroyed);
+     }
+ 
+     private void gameplaySettings() {
+diff --git a/src/main/java/net/minecraft/world/item/BlockItem.java b/src/main/java/net/minecraft/world/item/BlockItem.java
+index ebee8de2ed831755b6fd154f6cc77ac993839bb9..ce5faefe3b67087509833800f0472f14131f2011 100644
+--- a/src/main/java/net/minecraft/world/item/BlockItem.java
++++ b/src/main/java/net/minecraft/world/item/BlockItem.java
+@@ -288,7 +288,7 @@ public class BlockItem extends Item {
+ 
+     @Override
+     public void onDestroyed(ItemEntity entity) {
+-        if (this.block instanceof ShulkerBoxBlock) {
++        if (this.block instanceof ShulkerBoxBlock && entity.level().kaiijuConfig.shulkerBoxDropContentsWhenDestroyed) { // Kaiiju
+             ItemStack itemstack = entity.getItem();
+             CompoundTag nbttagcompound = BlockItem.getBlockEntityData(itemstack);
+ 

patches/server/0011-Server-mod-name.patch

@@ -0,0 +1,33 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Sun, 9 Apr 2023 17:06:46 +0300
+Subject: [PATCH] Server mod name
+
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+index fdc4cdbf34ed10f6523dceac7c1931d3ca4eb522..e1f50adfa216320bc53b460d11666064cb58c969 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+@@ -210,6 +210,9 @@ public class KaiijuConfig {
+     private static void optimizationSettings() {
+     }
+ 
++    public static String serverModName = "Kaiiju";
++
+     private static void gameplaySettings() {
++        serverModName = getString("gameplay.server-mod-name", serverModName);
+     }
+ }
+diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
+index 06233380f7580726753de34c1fb23d6347c9ac94..1b3f895b51b634ee9cf69cdbbfd7a1e600de16f0 100644
+--- a/src/main/java/net/minecraft/server/MinecraftServer.java
++++ b/src/main/java/net/minecraft/server/MinecraftServer.java
+@@ -1812,7 +1812,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+ 
+     @DontObfuscate
+     public String getServerModName() {
+-        return "Kaiiju"; // Kaiiju - Kaiiju > // Folia - Folia > // Paper - Paper > // Spigot - Spigot > // CraftBukkit - cb > vanilla!
++        return dev.kaiijumc.kaiiju.KaiijuConfig.serverModName; // Kaiiju - Kaiiju > // Folia - Folia > // Paper - Paper > // Spigot - Spigot > // CraftBukkit - cb > vanilla!
+     }
+ 
+     public SystemReport fillSystemReport(SystemReport details) {

patches/server/0012-Crash-on-broken-symlink.patch

@@ -0,0 +1,227 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Xymb <xymb@endcrystal.me>
+Date: Fri, 14 Apr 2023 02:12:58 +0200
+Subject: [PATCH] Crash on broken symlink
+
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+index 55dcbb48450b24f80e0a04bedeb54f64e94ebb9e..f3f824d0ab1a2a72825c40b67192386479a0b34c 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+@@ -127,6 +127,7 @@ public class KaiijuWorldConfig {
+     }
+ 
+     public RegionFileFormat regionFormatName = RegionFileFormat.ANVIL;
++    public boolean linearCrashOnBrokenSymlink = true;
+     public int regionFormatLinearCompressionLevel = 1;
+ 
+     private void regionFormatSettings() {
+@@ -142,6 +143,7 @@ public class KaiijuWorldConfig {
+             log(Level.SEVERE, "Falling back to compression level 1.");
+             regionFormatLinearCompressionLevel = 1;
+         }
++        linearCrashOnBrokenSymlink = getBoolean("region-format.linear.crash-on-broken-symlink", linearCrashOnBrokenSymlink);
+     }
+ 
+     public boolean shulkerBoxDropContentsWhenDestroyed = true;
+diff --git a/src/main/java/io/papermc/paper/world/ThreadedWorldUpgrader.java b/src/main/java/io/papermc/paper/world/ThreadedWorldUpgrader.java
+index abf5e2a06af9853b58ac9107cd6e9787c4185c66..389c68c0becd2f69dc1004d0b383f1a8784214c0 100644
+--- a/src/main/java/io/papermc/paper/world/ThreadedWorldUpgrader.java
++++ b/src/main/java/io/papermc/paper/world/ThreadedWorldUpgrader.java
+@@ -87,10 +87,11 @@ public class ThreadedWorldUpgrader {
+         // Kaiiju start
+         dev.kaiijumc.kaiiju.region.RegionFileFormat formatName = ((org.bukkit.craftbukkit.CraftWorld) org.bukkit.Bukkit.getWorld(worldName)).getHandle().kaiijuConfig.regionFormatName;
+         int linearCompression = ((org.bukkit.craftbukkit.CraftWorld) org.bukkit.Bukkit.getWorld(worldName)).getHandle().kaiijuConfig.regionFormatLinearCompressionLevel;
++        boolean linearCrashOnBrokenSymlink = ((org.bukkit.craftbukkit.CraftWorld) org.bukkit.Bukkit.getWorld(worldName)).getHandle().kaiijuConfig.linearCrashOnBrokenSymlink;
+         LOGGER.info("Using format " + formatName + " (" + linearCompression + ")");
+         // Kaiiju end
+         final WorldInfo info = new WorldInfo(() -> worldPersistentData,
+-                new ChunkStorage(formatName, linearCompression, regionFolder.toPath(), this.dataFixer, false), this.removeCaches, this.dimensionType, this.generatorKey); // Kaiiju
++                new ChunkStorage(formatName, linearCompression, linearCrashOnBrokenSymlink, regionFolder.toPath(), this.dataFixer, false), this.removeCaches, this.dimensionType, this.generatorKey); // Kaiiju
+ 
+         long expectedChunks = (long)regionFiles.length * (32L * 32L);
+ 
+diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
+index 61c6bc2859235874aefac71e9e55162f0a89f29f..24bd63c596c9f61f1e89ec5b001b7cb7a29a09ff 100644
+--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
++++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
+@@ -269,7 +269,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
+     // Paper end
+ 
+     public ChunkMap(ServerLevel world, LevelStorageSource.LevelStorageAccess session, DataFixer dataFixer, StructureTemplateManager structureTemplateManager, Executor executor, BlockableEventLoop<Runnable> mainThreadExecutor, LightChunkGetter chunkProvider, ChunkGenerator chunkGenerator, ChunkProgressListener worldGenerationProgressListener, ChunkStatusUpdateListener chunkStatusChangeListener, Supplier<DimensionDataStorage> persistentStateManagerFactory, int viewDistance, boolean dsync) {
+-        super(world.getLevel().kaiijuConfig.regionFormatName, world.getLevel().kaiijuConfig.regionFormatLinearCompressionLevel, session.getDimensionPath(world.dimension()).resolve("region"), dataFixer, dsync); // Kaiiju
++        super(world.getLevel().kaiijuConfig.regionFormatName, world.getLevel().kaiijuConfig.regionFormatLinearCompressionLevel, world.getLevel().kaiijuConfig.linearCrashOnBrokenSymlink, session.getDimensionPath(world.dimension()).resolve("region"), dataFixer, dsync); // Kaiiju
+         // Paper - rewrite chunk system
+         this.tickingGenerated = new AtomicInteger();
+         //this.playerMap = new PlayerMap(); // Folia - region threading
+@@ -314,7 +314,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
+         this.lightEngine = new ThreadedLevelLightEngine(chunkProvider, this, this.level.dimensionType().hasSkyLight(), null, null); // Paper - rewrite chunk system
+         this.distanceManager = new ChunkMap.ChunkDistanceManager(executor, mainThreadExecutor);
+         this.overworldDataStorage = persistentStateManagerFactory;
+-        this.poiManager = new PoiManager(this.level.kaiijuConfig.regionFormatName, this.level.kaiijuConfig.regionFormatLinearCompressionLevel, path.resolve("poi"), dataFixer, dsync, iregistrycustom, world); // Kaiiju
++        this.poiManager = new PoiManager(this.level.kaiijuConfig.regionFormatName, this.level.kaiijuConfig.regionFormatLinearCompressionLevel, this.level.kaiijuConfig.linearCrashOnBrokenSymlink, path.resolve("poi"), dataFixer, dsync, iregistrycustom, world); // Kaiiju
+         this.setViewDistance(viewDistance);
+         // Paper start
+         this.dataRegionManager = new io.papermc.paper.chunk.SingleThreadChunkRegionManager(this.level, 2, (1.0 / 3.0), 1, 6, "Data", DataRegionData::new, DataRegionSectionData::new);
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index 4774d3f357d62b0818b4713f8085d05be09eaa5c..1bbd8b475cdc57fb15ca05ffe122220a5539da10 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
++++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -426,8 +426,8 @@ public class ServerLevel extends Level implements WorldGenLevel {
+ 
+     private static final class EntityRegionFileStorage extends net.minecraft.world.level.chunk.storage.RegionFileStorage {
+ 
+-        public EntityRegionFileStorage(String format, int linearCompression, Path directory, boolean dsync) { // Kaiiju
+-            super(format, linearCompression, directory, dsync); // Kaiiju
++        public EntityRegionFileStorage(dev.kaiijumc.kaiiju.region.RegionFileFormat format, int linearCompression, boolean linearCrashOnBrokenSymlink, Path directory, boolean dsync) { // Kaiiju
++            super(format, linearCompression, linearCrashOnBrokenSymlink, directory, dsync); // Kaiiju
+         }
+ 
+         protected void write(ChunkPos pos, net.minecraft.nbt.CompoundTag nbt) throws IOException {
+@@ -666,7 +666,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
+         // CraftBukkit end
+         boolean flag2 = minecraftserver.forceSynchronousWrites();
+         DataFixer datafixer = minecraftserver.getFixerUpper();
+-        this.entityStorage = new EntityRegionFileStorage(this.getLevel().kaiijuConfig.regionFormatName, this.getLevel().kaiijuConfig.regionFormatLinearCompressionLevel, convertable_conversionsession.getDimensionPath(resourcekey).resolve("entities"), flag2); // Paper - rewrite chunk system  //EntityPersistentStorage<Entity> entitypersistentstorage = new EntityStorage(this, convertable_conversionsession.getDimensionPath(resourcekey).resolve("entities"), datafixer, flag2, minecraftserver); // Kaiiju
++        this.entityStorage = new EntityRegionFileStorage(this.getLevel().kaiijuConfig.regionFormatName, this.getLevel().kaiijuConfig.regionFormatLinearCompressionLevel, this.getLevel().kaiijuConfig.linearCrashOnBrokenSymlink, convertable_conversionsession.getDimensionPath(resourcekey).resolve("entities"), flag2); // Paper - rewrite chunk system  //EntityPersistentStorage<Entity> entitypersistentstorage = new EntityStorage(this, convertable_conversionsession.getDimensionPath(resourcekey).resolve("entities"), datafixer, flag2, minecraftserver); // Kaiiju
+ 
+         // this.entityManager = new PersistentEntitySectionManager<>(Entity.class, new ServerLevel.EntityCallbacks(), entitypersistentstorage, this.entitySliceManager); // Paper // Paper - rewrite chunk system
+         StructureTemplateManager structuretemplatemanager = minecraftserver.getStructureManager();
+diff --git a/src/main/java/net/minecraft/util/worldupdate/WorldUpgrader.java b/src/main/java/net/minecraft/util/worldupdate/WorldUpgrader.java
+index ac35e7eb8cb5f19391a18eb9d6b5ba26769ce2f6..a9c6ca7c621bb2431bcf0ae879b192f748bf931b 100644
+--- a/src/main/java/net/minecraft/util/worldupdate/WorldUpgrader.java
++++ b/src/main/java/net/minecraft/util/worldupdate/WorldUpgrader.java
+@@ -120,7 +120,8 @@ public class WorldUpgrader {
+                 String worldName = this.levelStorage.getLevelId();
+                 dev.kaiijumc.kaiiju.region.RegionFileFormat formatName = ((org.bukkit.craftbukkit.CraftWorld) org.bukkit.Bukkit.getWorld(worldName)).getHandle().kaiijuConfig.regionFormatName;
+                 int linearCompression = ((org.bukkit.craftbukkit.CraftWorld) org.bukkit.Bukkit.getWorld(worldName)).getHandle().kaiijuConfig.regionFormatLinearCompressionLevel;
+-                builder1.put(resourcekey1, new ChunkStorage(formatName, linearCompression, path.resolve("region"), this.dataFixer, true));
++                boolean linearCrashOnBrokenSymlink = ((org.bukkit.craftbukkit.CraftWorld) org.bukkit.Bukkit.getWorld(worldName)).getHandle().kaiijuConfig.linearCrashOnBrokenSymlink;
++                builder1.put(resourcekey1, new ChunkStorage(formatName, linearCompression, linearCrashOnBrokenSymlink, path.resolve("region"), this.dataFixer, true));
+                 // Kaiiju end
+             }
+ 
+diff --git a/src/main/java/net/minecraft/world/entity/ai/village/poi/PoiManager.java b/src/main/java/net/minecraft/world/entity/ai/village/poi/PoiManager.java
+index 187ff795192c7eb56dffafa1ff6fa3068ac341c3..b9cf3b9f2cdb554d267c6dc3436e011c7e607228 100644
+--- a/src/main/java/net/minecraft/world/entity/ai/village/poi/PoiManager.java
++++ b/src/main/java/net/minecraft/world/entity/ai/village/poi/PoiManager.java
+@@ -59,8 +59,8 @@ public class PoiManager extends SectionStorage<PoiSection> {
+     // Paper end - rewrite chunk system
+ 
+ 
+-    public PoiManager(dev.kaiijumc.kaiiju.region.RegionFileFormat formatName, int linearCompression, Path path, DataFixer dataFixer, boolean dsync, RegistryAccess registryManager, LevelHeightAccessor world) { // Kaiiju
+-        super(formatName, linearCompression, path, PoiSection::codec, PoiSection::new, dataFixer, DataFixTypes.POI_CHUNK, dsync, registryManager, world); // Kaiiju
++    public PoiManager(dev.kaiijumc.kaiiju.region.RegionFileFormat formatName, int linearCompression, boolean linearCrashOnBrokenSymlink, Path path, DataFixer dataFixer, boolean dsync, RegistryAccess registryManager, LevelHeightAccessor world) { // Kaiiju
++        super(formatName, linearCompression, linearCrashOnBrokenSymlink, path, PoiSection::codec, PoiSection::new, dataFixer, DataFixTypes.POI_CHUNK, dsync, registryManager, world); // Kaiiju
+         this.world = (net.minecraft.server.level.ServerLevel)world; // Paper - rewrite chunk system
+     }
+ 
+diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
+index 1d880f27dd147da683fc30ed6f1bfa43ecdb7d93..41598adf6d49a44bcaadfff3797221460a6d93ba 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
++++ b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
+@@ -37,11 +37,11 @@ public class ChunkStorage implements AutoCloseable {
+     public final RegionFileStorage regionFileCache;
+     // Paper end - async chunk loading
+ 
+-    public ChunkStorage(dev.kaiijumc.kaiiju.region.RegionFileFormat format, int linearCompression, Path directory, DataFixer dataFixer, boolean dsync) { // Kaiiju
++    public ChunkStorage(dev.kaiijumc.kaiiju.region.RegionFileFormat format, int linearCompression, boolean linearCrashOnBrokenSymlink, Path directory, DataFixer dataFixer, boolean dsync) { // Kaiiju
+         this.fixerUpper = dataFixer;
+         // Paper start - async chunk io
+         // remove IO worker
+-        this.regionFileCache = new RegionFileStorage(format, linearCompression, directory, dsync, true); // Paper - nuke IOWorker // Paper
++        this.regionFileCache = new RegionFileStorage(format, linearCompression, linearCrashOnBrokenSymlink, directory, dsync, true); // Paper - nuke IOWorker // Paper
+         // Paper end - async chunk io
+     }
+ 
+diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
+index b35a6a7daf768af3bc453fe18deec823f4b63a3a..8409293b3f329715d6dff3d455c6a484d5b133ee 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
++++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
+@@ -20,6 +20,7 @@ import net.minecraft.world.level.ChunkPos;
+ 
+ public class RegionFileStorage implements AutoCloseable {
+ 
++    private static final org.slf4j.Logger LOGGER = com.mojang.logging.LogUtils.getLogger(); // Kaiiju
+     public static final String ANVIL_EXTENSION = ".mca";
+     private static final int MAX_CACHE_SIZE = 256;
+     public final Long2ObjectLinkedOpenHashMap<dev.kaiijumc.kaiiju.region.AbstractRegionFile> regionCache = new Long2ObjectLinkedOpenHashMap(); // Kaiiju
+@@ -28,6 +29,7 @@ public class RegionFileStorage implements AutoCloseable {
+     // Kaiiju start - Per world chunk format
+     public final dev.kaiijumc.kaiiju.region.RegionFileFormat format;
+     public final int linearCompression;
++    public final boolean linearCrashOnBrokenSymlink;
+     // Kaiiju end
+     private final boolean isChunkData; // Paper
+ 
+@@ -60,14 +62,15 @@ public class RegionFileStorage implements AutoCloseable {
+     }
+     // Paper end - cache regionfile does not exist state
+ 
+-    protected RegionFileStorage(dev.kaiijumc.kaiiju.region.RegionFileFormat format, int linearCompression, Path directory, boolean dsync) { // Paper - protected constructor
++    protected RegionFileStorage(dev.kaiijumc.kaiiju.region.RegionFileFormat format, int linearCompression, boolean linearCrashOnBrokenSymlink, Path directory, boolean dsync) { // Paper - protected constructor
+         // Paper start - add isChunkData param
+-        this(format, linearCompression, directory, dsync, false);
++        this(format, linearCompression, linearCrashOnBrokenSymlink, directory, dsync, false);
+     }
+-    RegionFileStorage(dev.kaiijumc.kaiiju.region.RegionFileFormat format, int linearCompression, Path directory, boolean dsync, boolean isChunkData) { // Kaiiju
++    RegionFileStorage(dev.kaiijumc.kaiiju.region.RegionFileFormat format, int linearCompression, boolean linearCrashOnBrokenSymlink, Path directory, boolean dsync, boolean isChunkData) { // Kaiiju
+         // Kaiiju start
+         this.format = format;
+         this.linearCompression = linearCompression;
++        this.linearCrashOnBrokenSymlink = linearCrashOnBrokenSymlink;
+         // Kaiiju end
+         this.isChunkData = isChunkData;
+         // Paper end - add isChunkData param
+@@ -111,6 +114,20 @@ public class RegionFileStorage implements AutoCloseable {
+         return regionfile != null ? regionfile.hasChunk(pos) : false;
+     }
+ 
++    // Kaiiju start
++    private void guardAgainstBrokenSymlinks(Path path) throws IOException {
++        if (!linearCrashOnBrokenSymlink) return;
++        if (!this.format.equals("LINEAR")) return;
++        if (!java.nio.file.Files.isSymbolicLink(path)) return;
++        Path link = java.nio.file.Files.readSymbolicLink(path);
++        if (!java.nio.file.Files.exists(link) || !java.nio.file.Files.isReadable(link)) {
++            LOGGER.error("Linear region file {} is a broken symbolic link, crashing to prevent data loss", path);
++            net.minecraft.server.MinecraftServer.getServer().halt(false);
++            throw new IOException("Linear region file " + path + " is a broken symbolic link, crashing to prevent data loss");
++        }
++    }
++    // Kaiiju end
++
+     public synchronized dev.kaiijumc.kaiiju.region.AbstractRegionFile getRegionFile(ChunkPos chunkcoordintpair, boolean existingOnly) throws IOException { // CraftBukkit // Kaiiju
+         return this.getRegionFile(chunkcoordintpair, existingOnly, false);
+     }
+@@ -146,6 +163,7 @@ public class RegionFileStorage implements AutoCloseable {
+             if (existingOnly) {
+                 Path anvil = path.resolve("r." + j + "." + chunkcoordintpair.getRegionZ() + ".mca");
+                 Path linear = path.resolve("r." + j + "." + chunkcoordintpair.getRegionZ() + ".linear");
++                guardAgainstBrokenSymlinks(linear);
+                 if (java.nio.file.Files.exists(anvil)) path1 = anvil;
+                 else if (java.nio.file.Files.exists(linear)) path1 = linear;
+                 else {
+@@ -161,6 +179,7 @@ public class RegionFileStorage implements AutoCloseable {
+                 };
+                 path1 = path.resolve("r." + j + "." + chunkcoordintpair.getRegionZ() + "." + extension);
+                 // Kaiiju end
++                guardAgainstBrokenSymlinks(path1); // Kaiiju - Crash on broken symlink
+                 this.createRegionFile(regionPos);
+             }
+             // Kaiiju start - Polyglot
+diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/SectionStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/SectionStorage.java
+index 9394d191c56aab78e63fd3f283efedd69384e323..dcfe4a285cc5865be3b0c1b8104b722895135dd0 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/storage/SectionStorage.java
++++ b/src/main/java/net/minecraft/world/level/chunk/storage/SectionStorage.java
+@@ -47,8 +47,8 @@ public class SectionStorage<R> extends RegionFileStorage implements AutoCloseabl
+     public final RegistryAccess registryAccess; // Paper - rewrite chunk system
+     protected final LevelHeightAccessor levelHeightAccessor;
+ 
+-    public SectionStorage(dev.kaiijumc.kaiiju.region.RegionFileFormat format, int linearCompression, Path path, Function<Runnable, Codec<R>> codecFactory, Function<Runnable, R> factory, DataFixer dataFixer, DataFixTypes dataFixTypes, boolean dsync, RegistryAccess dynamicRegistryManager, LevelHeightAccessor world) { // Kaiiju
+-        super(format, linearCompression, path, dsync); // Paper - remove mojang I/O thread // Kaiiju
++    public SectionStorage(dev.kaiijumc.kaiiju.region.RegionFileFormat format, int linearCompression, boolean linearCrashOnBrokenSymlink, Path path, Function<Runnable, Codec<R>> codecFactory, Function<Runnable, R> factory, DataFixer dataFixer, DataFixTypes dataFixTypes, boolean dsync, RegistryAccess dynamicRegistryManager, LevelHeightAccessor world) { // Kaiiju
++        super(format, linearCompression, linearCrashOnBrokenSymlink, path, dsync); // Paper - remove mojang I/O thread // Kaiiju
+         this.codec = codecFactory;
+         this.factory = factory;
+         this.fixerUpper = dataFixer;

patches/server/0013-Toggle-void-trading.patch

@@ -0,0 +1,36 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Sun, 23 Apr 2023 15:34:30 +0300
+Subject: [PATCH] Toggle void trading
+
+Don't close trading windows when the villager is unloaded.
+You should set chunk-unloads to 0s in paper config file to enable void
+trading. Or use Kaiivoid plugin.
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+index f3f824d0ab1a2a72825c40b67192386479a0b34c..95ed6cb7b94797187d1011cab344e187b39d9193 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+@@ -152,6 +152,9 @@ public class KaiijuWorldConfig {
+         shulkerBoxDropContentsWhenDestroyed = getBoolean("optimization.shulker-box-drop-contents-when-destroyed", shulkerBoxDropContentsWhenDestroyed);
+     }
+ 
++    public boolean fixVoidTrading = true;
++
+     private void gameplaySettings() {
++        fixVoidTrading = getBoolean("gameplay.fix-void-trading", fixVoidTrading);
+     }
+ }
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index 1bbd8b475cdc57fb15ca05ffe122220a5539da10..7f39e36037d55278d15399196459e51b885c5d1e 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
++++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -2838,7 +2838,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
+             // Spigot Start
+             if (entity.getBukkitEntity() instanceof org.bukkit.inventory.InventoryHolder && (!(entity instanceof ServerPlayer) || entity.getRemovalReason() != Entity.RemovalReason.KILLED)) { // SPIGOT-6876: closeInventory clears death message
+                 // Paper start
+-                if (entity.getBukkitEntity() instanceof org.bukkit.inventory.Merchant merchant && merchant.getTrader() != null) {
++                if (entity.level().kaiijuConfig.fixVoidTrading && entity.getBukkitEntity() instanceof org.bukkit.inventory.Merchant merchant && merchant.getTrader() != null) { // Kaiiju
+                     merchant.getTrader().closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.UNLOADED);
+                 }
+                 // Paper end

patches/server/0014-Toggle-optimize-hoppers.patch

@@ -0,0 +1,219 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Thu, 27 Apr 2023 03:49:08 +0300
+Subject: [PATCH] Toggle optimize hoppers
+
+Paper optimize hoppers patch break a lot of technical redstone farms because of piston updates. (Example: twiti888 wood farm)
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+index 95ed6cb7b94797187d1011cab344e187b39d9193..6d7356cc07da58b1cef8d8963e790251d765de2c 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+@@ -147,9 +147,11 @@ public class KaiijuWorldConfig {
+     }
+ 
+     public boolean shulkerBoxDropContentsWhenDestroyed = true;
++    public boolean optimizeHoppers = true;
+ 
+     private void optimizationSettings() {
+         shulkerBoxDropContentsWhenDestroyed = getBoolean("optimization.shulker-box-drop-contents-when-destroyed", shulkerBoxDropContentsWhenDestroyed);
++        optimizeHoppers = getBoolean("optimization.optimize-hoppers", optimizeHoppers);
+     }
+ 
+     public boolean fixVoidTrading = true;
+diff --git a/src/main/java/net/minecraft/world/level/block/entity/HopperBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/HopperBlockEntity.java
+index 4825a74ce4893dafdb70ae1badf3d2e1930d01a1..762b763f271c3208b4f8a7e346897207ec5beb6c 100644
+--- a/src/main/java/net/minecraft/world/level/block/entity/HopperBlockEntity.java
++++ b/src/main/java/net/minecraft/world/level/block/entity/HopperBlockEntity.java
+@@ -401,49 +401,51 @@ public class HopperBlockEntity extends RandomizableContainerBlockEntity implemen
+             if (HopperBlockEntity.isFullContainer(iinventory1, enumdirection)) {
+                 return false;
+             } else {
++                // Kaiiju start - Toggle paper broken redstone
+                 // Paper start - replace logic; MAKE SURE TO CHECK FOR DIFFS ON UPDATES
+-                return hopperPush(world, iinventory1, enumdirection, hopper);
+-                // for (int i = 0; i < iinventory.getContainerSize(); ++i) {
+-                //     if (!iinventory.getItem(i).isEmpty()) {
+-                //         ItemStack itemstack = iinventory.getItem(i).copy();
+-                //         // ItemStack itemstack1 = addItem(iinventory, iinventory1, iinventory.removeItem(i, 1), enumdirection);
+-
+-                //         // CraftBukkit start - Call event when pushing items into other inventories
+-                //         CraftItemStack oitemstack = CraftItemStack.asCraftMirror(iinventory.removeItem(i, world.spigotConfig.hopperAmount)); // Spigot
+-
+-                //         Inventory destinationInventory;
+-                //        // Have to special case large chests as they work oddly
+-                //         if (iinventory1 instanceof CompoundContainer) {
+-                //             destinationInventory = new org.bukkit.craftbukkit.inventory.CraftInventoryDoubleChest((CompoundContainer) iinventory1);
+-                //         } else if (iinventory1.getOwner() != null) {
+-                //             destinationInventory = iinventory1.getOwner().getInventory();
+-                //         } else {
+-                //             destinationInventory = new CraftInventory(iinventory);
+-                //         }
+-
+-                //         InventoryMoveItemEvent event = new InventoryMoveItemEvent(iinventory.getOwner().getInventory(), oitemstack.clone(), destinationInventory, true);
+-                //         world.getCraftServer().getPluginManager().callEvent(event);
+-                //         if (event.isCancelled()) {
+-                //             hopper.setItem(i, itemstack);
+-                //             hopper.setCooldown(world.spigotConfig.hopperTransfer); // Spigot
+-                //             return false;
+-                //         }
+-                //         int origCount = event.getItem().getAmount(); // Spigot
+-                //         ItemStack itemstack1 = HopperBlockEntity.addItem(iinventory, iinventory1, CraftItemStack.asNMSCopy(event.getItem()), enumdirection);
++                if (world.kaiijuConfig.optimizeHoppers) return hopperPush(world, iinventory1, enumdirection, hopper);
++                for (int i = 0; i < iinventory.getContainerSize(); ++i) {
++                    if (!iinventory.getItem(i).isEmpty()) {
++                        ItemStack itemstack = iinventory.getItem(i).copy();
++                        // ItemStack itemstack1 = addItem(iinventory, iinventory1, iinventory.removeItem(i, 1), enumdirection);
++
++                        // CraftBukkit start - Call event when pushing items into other inventories
++                        CraftItemStack oitemstack = CraftItemStack.asCraftMirror(iinventory.removeItem(i, world.spigotConfig.hopperAmount)); // Spigot
++
++                        Inventory destinationInventory;
++                       // Have to special case large chests as they work oddly
++                        if (iinventory1 instanceof CompoundContainer) {
++                            destinationInventory = new org.bukkit.craftbukkit.inventory.CraftInventoryDoubleChest((CompoundContainer) iinventory1);
++                        } else if (iinventory1.getOwner() != null) {
++                            destinationInventory = iinventory1.getOwner().getInventory();
++                        } else {
++                            destinationInventory = new CraftInventory(iinventory);
++                        }
++
++                        InventoryMoveItemEvent event = new InventoryMoveItemEvent(iinventory.getOwner().getInventory(), oitemstack.clone(), destinationInventory, true);
++                        world.getCraftServer().getPluginManager().callEvent(event);
++                        if (event.isCancelled()) {
++                            hopper.setItem(i, itemstack);
++                            hopper.setCooldown(world.spigotConfig.hopperTransfer); // Spigot
++                            return false;
++                        }
++                        int origCount = event.getItem().getAmount(); // Spigot
++                        ItemStack itemstack1 = HopperBlockEntity.addItem(iinventory, iinventory1, CraftItemStack.asNMSCopy(event.getItem()), enumdirection);
+                         // CraftBukkit end
+ 
+-                //         if (itemstack1.isEmpty()) {
+-                //             iinventory1.setChanged();
+-                //             return true;
+-                //         }
++                        if (itemstack1.isEmpty()) {
++                            iinventory1.setChanged();
++                            return true;
++                        }
+ 
+-                //         itemstack.shrink(origCount - itemstack1.getCount()); // Spigot
+-                //         iinventory.setItem(i, itemstack);
+-                //     }
+-                // }
++                        itemstack.shrink(origCount - itemstack1.getCount()); // Spigot
++                        iinventory.setItem(i, itemstack);
++                    }
++                }
+ 
+-                // return false;
++                return false;
+                 // Paper end
++                // Kaiiju end
+             }
+         }
+     }
+@@ -467,6 +469,12 @@ public class HopperBlockEntity extends RandomizableContainerBlockEntity implemen
+         if (iinventory != null) {
+             Direction enumdirection = Direction.DOWN;
+ 
++            // Kaiiju start - toggle paper broken redstone
++            if (!world.kaiijuConfig.optimizeHoppers)
++            return HopperBlockEntity.isEmptyContainer(iinventory, enumdirection) ? false : HopperBlockEntity.getSlots(iinventory, enumdirection).anyMatch((i) -> {
++                return HopperBlockEntity.a(hopper, iinventory, i, enumdirection, world); // Spigot
++            });
++            // Kaiiju end
+             // Paper start - optimize hoppers and remove streams
+             worldData.skipPullModeEventFire = worldData.skipHopperEvents; // Folia - region threading
+             return !HopperBlockEntity.isEmptyContainer(iinventory, enumdirection) && anyMatch(iinventory, enumdirection, (item, i) -> {
+@@ -499,48 +507,50 @@ public class HopperBlockEntity extends RandomizableContainerBlockEntity implemen
+     private static boolean a(Hopper ihopper, Container iinventory, int i, Direction enumdirection, Level world) { // Spigot
+         ItemStack itemstack = iinventory.getItem(i);
+ 
++        // Kaiiju start - toggle paper broken redstone
+         // Paper start - replace pull logic; MAKE SURE TO CHECK FOR DIFFS WHEN UPDATING
+         if (!itemstack.isEmpty() && HopperBlockEntity.canTakeItemFromContainer(ihopper, iinventory, itemstack, i, enumdirection)) { // If this logic changes, update above. this is left unused incase reflective plugins
+-            return hopperPull(world, ihopper, iinventory, itemstack, i);
+-            // ItemStack itemstack1 = itemstack.copy();
+-            // // ItemStack itemstack2 = addItem(iinventory, ihopper, iinventory.removeItem(i, 1), (EnumDirection) null);
+-            // // CraftBukkit start - Call event on collection of items from inventories into the hopper
+-            // CraftItemStack oitemstack = CraftItemStack.asCraftMirror(iinventory.removeItem(i, world.spigotConfig.hopperAmount)); // Spigot
+-
+-            // Inventory sourceInventory;
+-            // // Have to special case large chests as they work oddly
+-            // if (iinventory instanceof CompoundContainer) {
+-            //     sourceInventory = new org.bukkit.craftbukkit.inventory.CraftInventoryDoubleChest((CompoundContainer) iinventory);
+-            // } else if (iinventory.getOwner() != null) {
+-            //     sourceInventory = iinventory.getOwner().getInventory();
+-            // } else {
+-            //     sourceInventory = new CraftInventory(iinventory);
+-            // }
+-
+-            // InventoryMoveItemEvent event = new InventoryMoveItemEvent(sourceInventory, oitemstack.clone(), ihopper.getOwner().getInventory(), false);
+-
+-            // Bukkit.getServer().getPluginManager().callEvent(event);
+-            // if (event.isCancelled()) {
+-            //     iinventory.setItem(i, itemstack1);
+-
+-                // if (ihopper instanceof HopperBlockEntity) {
+-                //     ((HopperBlockEntity) ihopper).setCooldown(world.spigotConfig.hopperTransfer); // Spigot
+-                // }
+-
+-                // return false;
+-            // }
+-            // int origCount = event.getItem().getAmount(); // Spigot
+-            // ItemStack itemstack2 = HopperBlockEntity.addItem(iinventory, ihopper, CraftItemStack.asNMSCopy(event.getItem()), null);
+-            // // CraftBukkit end
+-
+-            // if (itemstack2.isEmpty()) {
+-            //     iinventory.setChanged();
+-            //     return true;
+-            // }
+-
+-            // itemstack1.shrink(origCount - itemstack2.getCount()); // Spigot
+-            // iinventory.setItem(i, itemstack1);
++            if (world.kaiijuConfig.optimizeHoppers) return hopperPull(world, ihopper, iinventory, itemstack, i);
++            ItemStack itemstack1 = itemstack.copy();
++            // ItemStack itemstack2 = addItem(iinventory, ihopper, iinventory.removeItem(i, 1), (EnumDirection) null);
++            // CraftBukkit start - Call event on collection of items from inventories into the hopper
++            CraftItemStack oitemstack = CraftItemStack.asCraftMirror(iinventory.removeItem(i, world.spigotConfig.hopperAmount)); // Spigot
++
++            Inventory sourceInventory;
++            // Have to special case large chests as they work oddly
++            if (iinventory instanceof CompoundContainer) {
++                sourceInventory = new org.bukkit.craftbukkit.inventory.CraftInventoryDoubleChest((CompoundContainer) iinventory);
++            } else if (iinventory.getOwner() != null) {
++                sourceInventory = iinventory.getOwner().getInventory();
++            } else {
++                sourceInventory = new CraftInventory(iinventory);
++            }
++
++            InventoryMoveItemEvent event = new InventoryMoveItemEvent(sourceInventory, oitemstack.clone(), ihopper.getOwner().getInventory(), false);
++
++            Bukkit.getServer().getPluginManager().callEvent(event);
++            if (event.isCancelled()) {
++                iinventory.setItem(i, itemstack1);
++
++                if (ihopper instanceof HopperBlockEntity) {
++                    ((HopperBlockEntity) ihopper).setCooldown(world.spigotConfig.hopperTransfer); // Spigot
++                }
++
++                return false;
++            }
++            int origCount = event.getItem().getAmount(); // Spigot
++            ItemStack itemstack2 = HopperBlockEntity.addItem(iinventory, ihopper, CraftItemStack.asNMSCopy(event.getItem()), null);
++            // CraftBukkit end
++
++            if (itemstack2.isEmpty()) {
++                iinventory.setChanged();
++                return true;
++            }
++
++            itemstack1.shrink(origCount - itemstack2.getCount()); // Spigot
++            iinventory.setItem(i, itemstack1);
+             // Paper end
++            // Kaiiju end
+         }
+ 
+         return false;

patches/server/0015-Toggle-tick-level-when-empty.patch

@@ -0,0 +1,36 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Thu, 4 May 2023 19:53:33 +0300
+Subject: [PATCH] Toggle tick level when empty
+
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+index 6d7356cc07da58b1cef8d8963e790251d765de2c..601b9867d839f4928ba993ee8f00df9c330a0fe3 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+@@ -148,10 +148,12 @@ public class KaiijuWorldConfig {
+ 
+     public boolean shulkerBoxDropContentsWhenDestroyed = true;
+     public boolean optimizeHoppers = true;
++    public boolean tickWhenEmpty = true;
+ 
+     private void optimizationSettings() {
+         shulkerBoxDropContentsWhenDestroyed = getBoolean("optimization.shulker-box-drop-contents-when-destroyed", shulkerBoxDropContentsWhenDestroyed);
+         optimizeHoppers = getBoolean("optimization.optimize-hoppers", optimizeHoppers);
++        tickWhenEmpty = getBoolean("optimization.tick-when-empty", tickWhenEmpty);
+     }
+ 
+     public boolean fixVoidTrading = true;
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index 7f39e36037d55278d15399196459e51b885c5d1e..66509fa23bfcde70abd3917eb774cf48d5d6da93 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
++++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -798,7 +798,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
+         timings.doSounds.stopTiming(); // Spigot
+         regionizedWorldData.setHandlingTick(false); // Folia - regionised ticking
+         gameprofilerfiller.pop();
+-        boolean flag = true || !this.players.isEmpty() || !this.getForcedChunks().isEmpty(); // CraftBukkit - this prevents entity cleanup, other issues on servers with no players
++        boolean flag = kaiijuConfig.tickWhenEmpty || !this.players.isEmpty() || !this.getForcedChunks().isEmpty(); // CraftBukkit - this prevents entity cleanup, other issues on servers with no players // Kaiiju - i don't think so
+ 
+         if (flag) {
+             this.resetEmptyTime();

patches/server/0016-Toggle-break-redstone-on-top-of-trap-doors-early.patch

@@ -0,0 +1,42 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Sun, 7 May 2023 20:04:06 +0300
+Subject: [PATCH] Toggle break redstone on top of trap doors early
+
+That patch break vanilla mechanics such as portal slicing.
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+index 601b9867d839f4928ba993ee8f00df9c330a0fe3..e7ee85b09aa4438868e068551280b13e84cdfdb8 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+@@ -157,8 +157,10 @@ public class KaiijuWorldConfig {
+     }
+ 
+     public boolean fixVoidTrading = true;
++    public boolean breakRedstoneOnTopOfTrapDoorsEarly = true;
+ 
+     private void gameplaySettings() {
+         fixVoidTrading = getBoolean("gameplay.fix-void-trading", fixVoidTrading);
++        breakRedstoneOnTopOfTrapDoorsEarly = getBoolean("gameplay.break-redstone-on-top-of-trap-doors-early", breakRedstoneOnTopOfTrapDoorsEarly);
+     }
+ }
+diff --git a/src/main/java/net/minecraft/world/level/block/TrapDoorBlock.java b/src/main/java/net/minecraft/world/level/block/TrapDoorBlock.java
+index b9e3c9cd709d42bced85436720ccc7b9c7e49552..5e6d64408a5da3f337d32bb8ac5ac2532b04490c 100644
+--- a/src/main/java/net/minecraft/world/level/block/TrapDoorBlock.java
++++ b/src/main/java/net/minecraft/world/level/block/TrapDoorBlock.java
+@@ -125,6 +125,7 @@ public class TrapDoorBlock extends HorizontalDirectionalBlock implements SimpleW
+                 }
+                 // CraftBukkit end
+                 boolean open = (Boolean) state.getValue(TrapDoorBlock.OPEN) != flag1; // Paper - break redstone on trapdoors early
++                if (world.kaiijuConfig.breakRedstoneOnTopOfTrapDoorsEarly) { // Kaiiju - trigger break redstone on trapdoors early
+                 // Paper start - break redstone on trapdoors early
+                 // note: this must run before any state for this block/its neighborus are written to the world
+                 // we allow the redstone event to fire so that plugins can block
+@@ -143,6 +144,7 @@ public class TrapDoorBlock extends HorizontalDirectionalBlock implements SimpleW
+                     }
+                 }
+                 // Paper end - break redstone on trapdoors early
++                } // Kaiiju  - trigger break redstone on trapdoors early
+                 if (open) { // Paper - break redstone on trapdoors early
+                     state = (BlockState) state.setValue(TrapDoorBlock.OPEN, flag1);
+                     this.playSound((Player) null, world, pos, flag1);

patches/server/0017-Strip-raytracing-for-EntityLiving-hasLineOfSight.patch

@@ -0,0 +1,139 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Wed, 10 May 2023 16:30:38 +0300
+Subject: [PATCH] Strip raytracing for EntityLiving#hasLineOfSight
+
+This has been benchmarked on a huge gold farm.
+Resulting in significative performance improvements.
+
+diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+index 3c60ad621019c1daad5a0a379f7f925ce44d2d38..d8024d67b5422f1592d16af0db41276f35beaba4 100644
+--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
++++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+@@ -3664,7 +3664,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
+             Vec3 vec3d1 = new Vec3(entity.getX(), entity.getEyeY(), entity.getZ());
+ 
+             // Paper - diff on change - used in CraftLivingEntity#hasLineOfSight(Location) and CraftWorld#lineOfSightExists
+-            return vec3d1.distanceToSqr(vec3d) > 128D * 128D ? false : this.level().clip(new ClipContext(vec3d, vec3d1, ClipContext.Block.COLLIDER, ClipContext.Fluid.NONE, this)).getType() == HitResult.Type.MISS;
++            return !(vec3d1.distanceToSqr(vec3d) > 128D * 128D) && this.level().rayTraceDirect(vec3d, vec3d1, net.minecraft.world.phys.shapes.CollisionContext.of(this)) == net.minecraft.world.phys.BlockHitResult.Type.MISS; // Paper - use distanceToSqr // Kaiiju - Pufferfish - Strip raytracing
+         }
+     }
+ 
+diff --git a/src/main/java/net/minecraft/world/level/BlockGetter.java b/src/main/java/net/minecraft/world/level/BlockGetter.java
+index 0e8746759752b692668886370181aa5db1fd0bb0..5e2f5e9c21009a71f671955df7a4135ce5cf5b08 100644
+--- a/src/main/java/net/minecraft/world/level/BlockGetter.java
++++ b/src/main/java/net/minecraft/world/level/BlockGetter.java
+@@ -68,6 +68,17 @@ public interface BlockGetter extends LevelHeightAccessor {
+         });
+     }
+ 
++    // Kaiiju start - Pufferfish - broken down variant of below rayTraceBlock, used by World#rayTraceDirect
++    @Nullable
++    default net.minecraft.world.phys.BlockHitResult.Type rayTraceBlockDirect(Vec3 vec3d, Vec3 vec3d1, BlockPos blockposition, BlockState iblockdata, net.minecraft.world.phys.shapes.CollisionContext voxelshapecoll) {
++        if (iblockdata.isAir()) return null;
++        VoxelShape voxelshape = ClipContext.Block.COLLIDER.get(iblockdata, this, blockposition, voxelshapecoll);
++        net.minecraft.world.phys.BlockHitResult movingobjectpositionblock = this.clipWithInteractionOverride(vec3d, vec3d1, blockposition, voxelshape, iblockdata);
++
++        return movingobjectpositionblock == null ? null : movingobjectpositionblock.getType();
++    }
++    // Kaiiju end
++
+     // CraftBukkit start - moved block handling into separate method for use by Block#rayTrace
+     default BlockHitResult clip(ClipContext raytrace1, BlockPos blockposition) {
+             // Paper start - Prevent raytrace from loading chunks
+diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
+index fb71843793e699b2ccfaa3b7e4c2bb7d4826a706..42727a50ae11cd4d4aa65eb57638bfb164f1e4ac 100644
+--- a/src/main/java/net/minecraft/world/level/Level.java
++++ b/src/main/java/net/minecraft/world/level/Level.java
+@@ -432,6 +432,91 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
+         return null;
+     }
+ 
++    // Kaiiju start - Pufferfish - broken down method of raytracing for EntityLiving#hasLineOfSight, replaces IBlockAccess#rayTrace(RayTrace)
++    public net.minecraft.world.phys.BlockHitResult.Type rayTraceDirect(net.minecraft.world.phys.Vec3 vec3d, net.minecraft.world.phys.Vec3 vec3d1, net.minecraft.world.phys.shapes.CollisionContext voxelshapecoll) {
++        // most of this code comes from IBlockAccess#a(RayTrace, BiFunction, Function), but removes the needless functions
++        if (vec3d.equals(vec3d1)) {
++            return net.minecraft.world.phys.BlockHitResult.Type.MISS;
++        }
++
++        double endX = Mth.lerp(-1.0E-7D, vec3d1.x, vec3d.x);
++        double endY = Mth.lerp(-1.0E-7D, vec3d1.y, vec3d.y);
++        double endZ = Mth.lerp(-1.0E-7D, vec3d1.z, vec3d.z);
++
++        double startX = Mth.lerp(-1.0E-7D, vec3d.x, vec3d1.x);
++        double startY = Mth.lerp(-1.0E-7D, vec3d.y, vec3d1.y);
++        double startZ = Mth.lerp(-1.0E-7D, vec3d.z, vec3d1.z);
++
++        int currentX = Mth.floor(startX);
++        int currentY = Mth.floor(startY);
++        int currentZ = Mth.floor(startZ);
++
++        BlockPos.MutableBlockPos currentBlock = new BlockPos.MutableBlockPos(currentX, currentY, currentZ);
++
++        LevelChunk chunk = this.getChunkIfLoaded(currentBlock);
++        if (chunk == null) {
++            return net.minecraft.world.phys.BlockHitResult.Type.MISS;
++        }
++
++        net.minecraft.world.phys.BlockHitResult.Type initialCheck = this.rayTraceBlockDirect(vec3d, vec3d1, currentBlock, chunk.getBlockState(currentBlock), voxelshapecoll);
++
++        if (initialCheck != null) {
++            return initialCheck;
++        }
++
++        double diffX = endX - startX;
++        double diffY = endY - startY;
++        double diffZ = endZ - startZ;
++
++        int xDirection = Mth.sign(diffX);
++        int yDirection = Mth.sign(diffY);
++        int zDirection = Mth.sign(diffZ);
++
++        double normalizedX = xDirection == 0 ? Double.MAX_VALUE : (double) xDirection / diffX;
++        double normalizedY = yDirection == 0 ? Double.MAX_VALUE : (double) yDirection / diffY;
++        double normalizedZ = zDirection == 0 ? Double.MAX_VALUE : (double) zDirection / diffZ;
++
++        double normalizedXDirection = normalizedX * (xDirection > 0 ? 1.0D - Mth.frac(startX) : Mth.frac(startX));
++        double normalizedYDirection = normalizedY * (yDirection > 0 ? 1.0D - Mth.frac(startY) : Mth.frac(startY));
++        double normalizedZDirection = normalizedZ * (zDirection > 0 ? 1.0D - Mth.frac(startZ) : Mth.frac(startZ));
++
++        net.minecraft.world.phys.BlockHitResult.Type result;
++
++        do {
++            if (normalizedXDirection > 1.0D && normalizedYDirection > 1.0D && normalizedZDirection > 1.0D) {
++                return net.minecraft.world.phys.BlockHitResult.Type.MISS;
++            }
++
++            if (normalizedXDirection < normalizedYDirection) {
++                if (normalizedXDirection < normalizedZDirection) {
++                    currentX += xDirection;
++                    normalizedXDirection += normalizedX;
++                } else {
++                    currentZ += zDirection;
++                    normalizedZDirection += normalizedZ;
++                }
++            } else if (normalizedYDirection < normalizedZDirection) {
++                currentY += yDirection;
++                normalizedYDirection += normalizedY;
++            } else {
++                currentZ += zDirection;
++                normalizedZDirection += normalizedZ;
++            }
++
++            currentBlock.set(currentX, currentY, currentZ);
++            if (chunk.getPos().x != currentBlock.getX() >> 4 || chunk.getPos().z != currentBlock.getZ() >> 4) {
++                chunk = this.getChunkIfLoaded(currentBlock);
++                if (chunk == null) {
++                    return net.minecraft.world.phys.BlockHitResult.Type.MISS;
++                }
++            }
++            result = this.rayTraceBlockDirect(vec3d, vec3d1, currentBlock, chunk.getBlockState(currentBlock), voxelshapecoll);
++        } while (result == null);
++
++        return result;
++    }
++    // Kaiiju end
++
+     public boolean isInWorldBounds(BlockPos pos) {
+         return pos.isInsideBuildHeightAndWorldBoundsHorizontal(this); // Paper - use better/optimized check
+     }

patches/server/0018-Fix-off-thread-spider-addEffect.patch

@@ -0,0 +1,20 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Wed, 10 May 2023 17:58:37 +0300
+Subject: [PATCH] Fix off thread spider addEffect
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/monster/Spider.java b/src/main/java/net/minecraft/world/entity/monster/Spider.java
+index 05432184077752b1d0cb764a5e39ed875748b2d6..74a68ae68e3c774a63d0a5478dfcda6e7894a514 100644
+--- a/src/main/java/net/minecraft/world/entity/monster/Spider.java
++++ b/src/main/java/net/minecraft/world/entity/monster/Spider.java
+@@ -180,7 +180,9 @@ public class Spider extends Monster {
+             MobEffect mobeffectlist = entityspider_groupdataspider.effect;
+ 
+             if (mobeffectlist != null) {
++                this.getBukkitEntity().taskScheduler.schedule(task -> { // Kaiiju - Fix off thread spider add effect
+                 this.addEffect(new MobEffectInstance(mobeffectlist, -1), org.bukkit.event.entity.EntityPotionEffectEvent.Cause.SPIDER_SPAWN); // CraftBukkit
++                }, null, 1); // Kaiiju - Fix off thread spider add effect
+             }
+         }
+ 

patches/server/0019-Add-SIMD-utilities.patch

@@ -0,0 +1,141 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Thu, 11 May 2023 05:02:40 +0300
+Subject: [PATCH] Add SIMD utilities
+
+Patch from Pufferfish
+
+diff --git a/build.gradle.kts b/build.gradle.kts
+index f213706442537201de0d74ca8a51cc93cb9d5220..1615346024037f2abe0fcfcfc5ea7713505bebca 100644
+--- a/build.gradle.kts
++++ b/build.gradle.kts
+@@ -60,6 +60,12 @@ dependencies {
+ }
+ 
+ val craftbukkitPackageVersion = "1_20_R1" // Paper
++// Kaiiju start - Pufferfish - SIMD utilities
++tasks.withType<JavaCompile> {
++    val compilerArgs = options.compilerArgs
++    compilerArgs.add("--add-modules=jdk.incubator.vector")
++}
++// Kaiiju end
+ tasks.jar {
+     archiveClassifier.set("dev")
+ 
+diff --git a/src/main/java/gg/pufferfish/pufferfish/simd/SIMDChecker.java b/src/main/java/gg/pufferfish/pufferfish/simd/SIMDChecker.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..586b4cd007b3b106966524e2697edddf88e3ac9d
+--- /dev/null
++++ b/src/main/java/gg/pufferfish/pufferfish/simd/SIMDChecker.java
+@@ -0,0 +1,59 @@
++package gg.pufferfish.pufferfish.simd;
++
++import org.bukkit.Bukkit;
++import java.util.logging.Level;
++import java.util.logging.Logger;
++import jdk.incubator.vector.FloatVector;
++import jdk.incubator.vector.IntVector;
++import jdk.incubator.vector.VectorSpecies;
++
++/**
++ * Basically, java is annoying and we have to push this out to its own class.
++ */
++public class SIMDChecker {
++
++	public static boolean canEnable(Logger logger) {
++		try {
++			if (SIMDDetection.getJavaVersion() != 17 && SIMDDetection.getJavaVersion() != 18 && SIMDDetection.getJavaVersion() != 19) {
++				return false;
++			} else {
++				SIMDDetection.testRun = true;
++
++				VectorSpecies<Integer> ISPEC = IntVector.SPECIES_PREFERRED;
++				VectorSpecies<Float> FSPEC = FloatVector.SPECIES_PREFERRED;
++
++				logger.log(Level.INFO, "Max SIMD vector size on this system is " + ISPEC.vectorBitSize() + " bits (int)");
++				logger.log(Level.INFO, "Max SIMD vector size on this system is " + FSPEC.vectorBitSize() + " bits (float)");
++
++				if (ISPEC.elementSize() < 2 || FSPEC.elementSize() < 2) {
++					logger.log(Level.WARNING, "SIMD is not properly supported on this system!");
++					return false;
++				}
++
++				return true;
++			}
++		} catch (NoClassDefFoundError | Exception ignored) {} // Basically, we don't do anything. This lets us detect if it's not functional and disable it.
++		return false;
++	}
++
++    public static void simdWarning() {
++		// Attempt to detect vectorization
++		try {
++			SIMDDetection.isEnabled = SIMDDetection.canEnable(Bukkit.getLogger());
++			SIMDDetection.versionLimited = SIMDDetection.getJavaVersion() != 17 && SIMDDetection.getJavaVersion() != 18 && SIMDDetection.getJavaVersion() != 19;
++		} catch (NoClassDefFoundError | Exception ignored) {
++			ignored.printStackTrace();
++		}
++
++		if (SIMDDetection.isEnabled) {
++			Bukkit.getLogger().info("SIMD operations detected as functional. Will replace some operations with faster versions.");
++		} else if (SIMDDetection.versionLimited) {
++			Bukkit.getLogger().warning("Will not enable SIMD! These optimizations are only safely supported on Java 17, Java 18, and Java 19.");
++		} else {
++			Bukkit.getLogger().warning("SIMD operations are available for your server, but are not configured!");
++			Bukkit.getLogger().warning("To enable additional optimizations, add \"--add-modules=jdk.incubator.vector\" to your startup flags, BEFORE the \"-jar\".");
++			Bukkit.getLogger().warning("If you have already added this flag, then SIMD operations are not supported on your JVM or CPU.");
++			Bukkit.getLogger().warning("Debug: Java: " + System.getProperty("java.version") + ", test run: " + SIMDDetection.testRun);
++		}
++    }
++}
+\ No newline at end of file
+diff --git a/src/main/java/gg/pufferfish/pufferfish/simd/SIMDDetection.java b/src/main/java/gg/pufferfish/pufferfish/simd/SIMDDetection.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..758fa97304a32bf17935c86dc03cbf50606935d8
+--- /dev/null
++++ b/src/main/java/gg/pufferfish/pufferfish/simd/SIMDDetection.java
+@@ -0,0 +1,32 @@
++package gg.pufferfish.pufferfish.simd;
++
++import java.util.logging.Logger;
++
++public class SIMDDetection {
++
++	public static boolean isEnabled = false;
++	public static boolean versionLimited = false;
++	public static boolean testRun = false;
++
++	public static boolean canEnable(Logger logger) {
++		try {
++			return SIMDChecker.canEnable(logger);
++		} catch (NoClassDefFoundError | Exception ignored) {
++			return false;
++		}
++	}
++
++	public static int getJavaVersion() {
++		// https://stackoverflow.com/a/2591122
++		String version = System.getProperty("java.version");
++		if(version.startsWith("1.")) {
++			version = version.substring(2, 3);
++		} else {
++			int dot = version.indexOf(".");
++			if(dot != -1) { version = version.substring(0, dot); }
++		}
++		version = version.split("-")[0]; // Azul is stupid
++		return Integer.parseInt(version);
++	}
++
++}
+\ No newline at end of file
+diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+index ee75d828174ac1c84931bc087472fefd76073bdb..991e4c19763a34a6fead88363e007c2d11aad836 100644
+--- a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
++++ b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+@@ -225,6 +225,7 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
+             DedicatedServer.LOGGER.error("Unable to load server configuration", e);
+             return false;
+         }
++        gg.pufferfish.pufferfish.simd.SIMDChecker.simdWarning();
+         dev.kaiijumc.kaiiju.KaiijuConfig.registerCommands();
+         // Kaiiju end
+         com.destroystokyo.paper.VersionHistoryManager.INSTANCE.getClass(); // load version history now

patches/server/0020-Toggle-shared-random-for-players.patch

@@ -0,0 +1,37 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Thu, 11 May 2023 17:12:34 +0300
+Subject: [PATCH] Toggle shared random for players
+
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+index e1f50adfa216320bc53b460d11666064cb58c969..c934341c17caf4696065ac6c39bdfef570c62f13 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+@@ -211,8 +211,10 @@ public class KaiijuConfig {
+     }
+ 
+     public static String serverModName = "Kaiiju";
++    public static boolean sharedRandomForPlayers = true;
+ 
+     private static void gameplaySettings() {
+         serverModName = getString("gameplay.server-mod-name", serverModName);
++        sharedRandomForPlayers = getBoolean("gameplay.shared-random-for-players", sharedRandomForPlayers);
+     }
+ }
+diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
+index deaf4b65b6c9f3dbab6578c25fb78ca84507f70b..cdf669fc1065632033fab4154f0113474b984152 100644
+--- a/src/main/java/net/minecraft/world/entity/Entity.java
++++ b/src/main/java/net/minecraft/world/entity/Entity.java
+@@ -566,6 +566,11 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
+         this.bb = Entity.INITIAL_AABB;
+         this.stuckSpeedMultiplier = Vec3.ZERO;
+         this.nextStep = 1.0F;
++        // Kaiiju start - Toggle shared random for players
++        if (!dev.kaiijumc.kaiiju.KaiijuConfig.sharedRandomForPlayers && this instanceof Player)
++            this.random = RandomSource.create();
++        else
++        // Kaiiju end
+         this.random = SHARED_RANDOM; // Paper
+         this.remainingFireTicks = -this.getFireImmuneTicks();
+         this.fluidHeight = new Object2DoubleArrayMap(2);

patches/server/0021-Kick-player-instead-of-crashing.patch

@@ -0,0 +1,42 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Sun, 14 May 2023 18:50:57 +0300
+Subject: [PATCH] Kick player instead of crashing
+
+
+diff --git a/src/main/java/io/papermc/paper/chunk/system/RegionizedPlayerChunkLoader.java b/src/main/java/io/papermc/paper/chunk/system/RegionizedPlayerChunkLoader.java
+index 7b664f32868028758d0c6ee1eaa82efcd83661d2..8b325c764df7003f8e6984a85267cd78fc7672ed 100644
+--- a/src/main/java/io/papermc/paper/chunk/system/RegionizedPlayerChunkLoader.java
++++ b/src/main/java/io/papermc/paper/chunk/system/RegionizedPlayerChunkLoader.java
+@@ -485,7 +485,12 @@ public class RegionizedPlayerChunkLoader {
+                     new ChunkPos(chunkX, chunkZ), new MutableObject<>(), false, true); // unloaded, loaded
+                 return;
+             }
+-            throw new IllegalStateException();
++            // Kaiiju - Kick player instead of crashing
++            String errorMsg = "Already sent chunk [" + chunkX + ", " + chunkZ + "] in world " + this.world;
++            this.player.getBukkitEntity().kickPlayer(errorMsg);
++            org.bukkit.Bukkit.getLogger().severe(errorMsg);
++            // throw new IllegalStateException();
++            // Kaiiju end
+         }
+ 
+         private void sendUnloadChunk(final int chunkX, final int chunkZ) {
+diff --git a/src/main/java/net/minecraft/server/level/ChunkHolder.java b/src/main/java/net/minecraft/server/level/ChunkHolder.java
+index 18f438eec03cabc1614ab807081cff6b18fb09a8..df3869d7aee9c1c880319251b40879c8802c72b4 100644
+--- a/src/main/java/net/minecraft/server/level/ChunkHolder.java
++++ b/src/main/java/net/minecraft/server/level/ChunkHolder.java
+@@ -129,7 +129,12 @@ public class ChunkHolder {
+ 
+     public void addPlayer(ServerPlayer player) {
+         if (!this.playersSentChunkTo.add(player)) {
+-            throw new IllegalStateException("Already sent chunk " + this.pos + " in world '" + this.chunkMap.level.getWorld().getName() + "' to player " + player);
++            // Kaiiju start - Kick player instead of crashing
++            String errorMsg = "Already sent chunk " + this.pos + " in world " + this.chunkMap.level.getWorld().getName();
++            player.getBukkitEntity().kickPlayer(errorMsg);
++            org.bukkit.Bukkit.getLogger().severe(errorMsg);
++            //throw new IllegalStateException("Already sent chunk " + this.pos + " in world '" + this.chunkMap.level.getWorld().getName() + "' to player " + player);
++            // Kaiiju end
+         }
+     }
+ 

patches/server/0022-Toggle-fix-TripWire-state-inconsistency.patch

@@ -0,0 +1,36 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Thu, 18 May 2023 15:50:40 +0300
+Subject: [PATCH] Toggle fix TripWire state inconsistency
+
+This allow string duplication
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+index e7ee85b09aa4438868e068551280b13e84cdfdb8..8d7821d8b1a3615eaef1073d9dab690559b85f81 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+@@ -158,9 +158,11 @@ public class KaiijuWorldConfig {
+ 
+     public boolean fixVoidTrading = true;
+     public boolean breakRedstoneOnTopOfTrapDoorsEarly = true;
++    public boolean fixTripWireStateInconsistency = true;
+ 
+     private void gameplaySettings() {
+         fixVoidTrading = getBoolean("gameplay.fix-void-trading", fixVoidTrading);
+         breakRedstoneOnTopOfTrapDoorsEarly = getBoolean("gameplay.break-redstone-on-top-of-trap-doors-early", breakRedstoneOnTopOfTrapDoorsEarly);
++        fixTripWireStateInconsistency = getBoolean("gameplay.fix-tripwire-state-inconsistency", fixTripWireStateInconsistency);
+     }
+ }
+diff --git a/src/main/java/net/minecraft/world/level/block/TripWireBlock.java b/src/main/java/net/minecraft/world/level/block/TripWireBlock.java
+index 7f60175bf671d282c11e9084670d2bb900968255..baa6d2bb3a4bec920cb8b57cb08d706929985ea9 100644
+--- a/src/main/java/net/minecraft/world/level/block/TripWireBlock.java
++++ b/src/main/java/net/minecraft/world/level/block/TripWireBlock.java
+@@ -74,7 +74,7 @@ public class TripWireBlock extends Block {
+     @Override
+     public void onRemove(BlockState state, Level world, BlockPos pos, BlockState newState, boolean moved) {
+         if (!moved && !state.is(newState.getBlock())) {
+-            this.updateSource(world, pos, (BlockState) state.setValue(TripWireBlock.POWERED, true), true); // Paper - fix state inconsistency
++            this.updateSource(world, pos, (BlockState) state.setValue(TripWireBlock.POWERED, true), world.kaiijuConfig.fixTripWireStateInconsistency); // Paper - fix state inconsistency // Kaiiju - Toggle this
+         }
+     }
+ 

patches/server/0023-Entity-ticking-throttling-removal-to-prevent-lag.patch

@@ -0,0 +1,370 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Xymb <xymb@endcrystal.me>
+Date: Sun, 21 May 2023 15:55:04 +0200
+Subject: [PATCH] Entity ticking throttling & removal to prevent lag.
+
+
+diff --git a/build.gradle.kts b/build.gradle.kts
+index 1615346024037f2abe0fcfcfc5ea7713505bebca..d24f5fdc6a8c34774933a5cd8bfed8571299bd35 100644
+--- a/build.gradle.kts
++++ b/build.gradle.kts
+@@ -17,6 +17,7 @@ dependencies {
+     implementation("com.github.luben:zstd-jni:1.5.4-1")
+     implementation("org.lz4:lz4-java:1.8.0")
+     // Kaiiju end
++    implementation("io.github.classgraph:classgraph:4.8.158") // Kaiiju - Entity throttling & Removal
+     // Paper start
+     implementation("org.jline:jline-terminal-jansi:3.21.0")
+     implementation("net.minecrell:terminalconsoleappender:1.3.0")
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuEntityLimits.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuEntityLimits.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..887ea85ca2a03796bfa5bf62f27d1a7abd7fbc29
+--- /dev/null
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuEntityLimits.java
+@@ -0,0 +1,139 @@
++package dev.kaiijumc.kaiiju;
++
++import java.io.File;
++import java.io.IOException;
++import java.util.Map;
++import java.util.HashMap;
++import java.util.logging.Level;
++
++import com.google.common.base.Throwables;
++import it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap;
++import io.github.classgraph.ClassGraph;
++import io.github.classgraph.ClassInfo;
++import io.github.classgraph.ScanResult;
++import org.slf4j.Logger;
++
++import com.mojang.logging.LogUtils;
++import net.minecraft.world.entity.Entity;
++import org.bukkit.Bukkit;
++import org.bukkit.configuration.InvalidConfigurationException;
++import org.bukkit.configuration.file.YamlConfiguration;
++
++@SuppressWarnings("unused")
++public class KaiijuEntityLimits {
++    private static final Logger LOGGER = LogUtils.getLogger();
++
++    protected static final String HEADER =
++        "Per region entity limits for Kaiiju.\n"
++        + "If there are more of particular entity type in a region than limit, entity ticking will be throttled.\n"
++        + "Example: for Wither limit 100 & 300 Withers in a region -> 100 Withers tick every tick & every Wither ticks every 3 ticks.\n"
++        + "Available entities: GlowSquid, Ambient, Bat, Animal, Bee, Cat, Chicken, Cod, Cow, Dolphin, Fish, FishSchool, Fox, Golem, IronGolem, "
++        + "MushroomCow, Ocelot, Panda, Parrot, Perchable, Pig, PolarBear, PufferFish, Rabbit, Salmon, Sheep, Snowman, Squid, TropicalFish, Turtle, "
++        + "WaterAnimal, Wolf, Allay, Axolotl, Camel, Frog, Tadpole, Goat, Horse, HorseAbstract, HorseChestedAbstract, HorseDonkey, HorseMule, "
++        + "HorseSkeleton, HorseZombie, Llama, LlamaTrader, Sniffer, EnderCrystal, EnderDragon, Wither, ArmorStand, Hanging, ItemFrame, Leash, "
++        + "Painting, GlowItemFrame, FallingBlock, Item, TNTPrimed, Blaze, CaveSpider, Creeper, Drowned, Enderman, Endermite, Evoker, Ghast, "
++        + "GiantZombie, Guardian, GuardianElder, IllagerAbstract, IllagerIllusioner, IllagerWizard, MagmaCube, Monster, MonsterPatrolling, Phantom, "
++        + "PigZombie, Pillager, Ravager, Shulker, Silverfish, Skeleton, SkeletonAbstract, SkeletonStray, SkeletonWither, Slime, Spider, Strider, Vex, "
++        + "Vindicator, Witch, Zoglin, Zombie, ZombieHusk, ZombieVillager, Hoglin, Piglin, PiglinAbstract, PiglinBrute, Warden, Villager, "
++        + "VillagerTrader, Arrow, DragonFireball, Egg, EnderPearl, EnderSignal, EvokerFangs, Fireball, FireballFireball, Fireworks, FishingHook, "
++        + "LargeFireball, LlamaSpit, Potion, Projectile, ProjectileThrowable, ShulkerBullet, SmallFireball, Snowball, SpectralArrow, ThrownExpBottle, "
++        + "ThrownTrident, TippedArrow, WitherSkull, Raider, ChestBoat, Boat, MinecartAbstract, MinecartChest, MinecartCommandBlock, MinecartContainer, "
++        + "MinecartFurnace, MinecartHopper, MinecartMobSpawner, MinecartRideable, MinecartTNT\n";
++    protected static File ENTITY_LIMITS_FILE;
++    public static YamlConfiguration entityLimitsConfig;
++
++    protected static Map<Class<? extends Entity>, EntityLimit> entityLimits;
++
++    static final String ENTITY_PREFIX = "Entity";
++
++    public static void init(File entityLimitsFile) {
++        init(entityLimitsFile, true);
++    }
++
++    public static void reload(File entityLimitsFile) {
++        init(entityLimitsFile, false);
++    }
++
++    private static void init(File entityLimitsFile, boolean setup) {
++        ENTITY_LIMITS_FILE = entityLimitsFile;
++        entityLimitsConfig = new YamlConfiguration();
++
++        if (entityLimitsFile.exists()) {
++            try {
++                entityLimitsConfig.load(ENTITY_LIMITS_FILE);
++            } catch (InvalidConfigurationException ex) {
++                Bukkit.getLogger().log(Level.SEVERE, "Could not load kaiiju_entity_limits.yml, please correct your syntax errors", ex);
++                throw Throwables.propagate(ex);
++            } catch (IOException ignore) {}
++        } else {
++            if (setup) {
++                entityLimitsConfig.options().header(HEADER);
++                entityLimitsConfig.options().copyDefaults(true);
++                entityLimitsConfig.set("Wither.limit", 1000);
++                entityLimitsConfig.set("Wither.removal", 5000);
++                entityLimitsConfig.set("Axolotl.limit", 1000);
++                entityLimitsConfig.set("Axolotl.removal", 5000);
++                try {
++                    entityLimitsConfig.save(ENTITY_LIMITS_FILE);
++                } catch (IOException ex) {
++                    Bukkit.getLogger().log(Level.SEVERE, "Could not save " + ENTITY_LIMITS_FILE, ex);
++                }
++            }
++        }
++
++        entityLimits = new Object2ObjectOpenHashMap<>();
++        try (ScanResult scanResult = new ClassGraph().enableAllInfo().acceptPackages("net.minecraft.world.entity").scan()) {
++            Map<String, ClassInfo> entityClasses = new HashMap<>();
++            for (ClassInfo classInfo : scanResult.getAllClasses()) {
++                Class<?> entityClass = Class.forName(classInfo.getName());
++                if (Entity.class.isAssignableFrom(entityClass)) {
++                    String entityName = extractEntityName(entityClass.getSimpleName());
++                    entityClasses.put(entityName, classInfo);
++                }
++            }
++
++            for (String key : entityLimitsConfig.getKeys(false)) {
++                if (!entityClasses.containsKey(key)) {
++                    LOGGER.error("Unknown entity '" + key + "' in kaiiju-entity-limits.yml, skipping");
++                    continue;
++                }
++                int limit = entityLimitsConfig.getInt(key + ".limit");
++                int removal = entityLimitsConfig.getInt(key + ".removal");
++
++                if (limit < 1) {
++                    LOGGER.error(key + " has a limit less than the minimum of 1, ignoring");
++                    continue;
++                }
++                if (removal <= limit && removal != -1) {
++                    LOGGER.error(key + " has a removal limit that is less than or equal to its limit, setting removal to limit * 10");
++                    removal = limit * 10;
++                }
++
++                entityLimits.put((Class<? extends Entity>) Class.forName(entityClasses.get(key).getName()), new EntityLimit(limit, removal));
++            }
++        } catch (ClassNotFoundException e) {
++            e.printStackTrace();
++        }
++    }
++
++    public static EntityLimit getEntityLimit(Entity entity) {
++        return entityLimits.get(entity.getClass());
++    }
++
++    private static String extractEntityName(String input) {
++        int prefixLength = ENTITY_PREFIX.length();
++
++        if (input.length() <= prefixLength || !input.startsWith(ENTITY_PREFIX)) {
++            return input;
++        } else {
++            return input.substring(prefixLength);
++        }
++    }
++
++    public record EntityLimit(int limit, int removal) {
++        @Override
++        public String toString() {
++            return "EntityLimit{limit=" + limit + ", removal=" + removal + "}";
++        }
++    }
++}
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuEntityThrottler.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuEntityThrottler.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..eb690efacf083e4ff3e321578b12c534e6a40196
+--- /dev/null
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuEntityThrottler.java
+@@ -0,0 +1,84 @@
++package dev.kaiijumc.kaiiju;
++
++import it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap;
++import net.minecraft.world.entity.Entity;
++import io.papermc.paper.threadedregions.RegionizedWorldData;
++
++public class KaiijuEntityThrottler {
++    private static class TickInfo {
++        int currentTick;
++        int continueFrom;
++        int toTick;
++        int toRemove;
++    }
++
++    public static class EntityThrottlerReturn {
++        public boolean skip;
++        public boolean remove;
++    }
++
++    private final Object2ObjectOpenHashMap<KaiijuEntityLimits.EntityLimit, TickInfo> entityLimitTickInfoMap = new Object2ObjectOpenHashMap<>();
++
++    public void tickLimiterStart() {
++        for (TickInfo tickInfo : entityLimitTickInfoMap.values()) {
++            tickInfo.currentTick = 0;
++        }
++    }
++
++    public EntityThrottlerReturn tickLimiterShouldSkip(Entity entity) {
++        EntityThrottlerReturn retVal = new EntityThrottlerReturn();
++        if (entity.isRemoved()) return retVal;
++        KaiijuEntityLimits.EntityLimit entityLimit = KaiijuEntityLimits.getEntityLimit(entity);
++
++        if (entityLimit != null) {
++            TickInfo tickInfo = entityLimitTickInfoMap.computeIfAbsent(entityLimit, el -> {
++                TickInfo newTickInfo = new TickInfo();
++                newTickInfo.toTick = entityLimit.limit();
++                return newTickInfo;
++            });
++
++            tickInfo.currentTick++;
++            if (tickInfo.currentTick <= tickInfo.toRemove && entityLimit.removal() > 0) {
++                retVal.skip = false;
++                retVal.remove = true;
++                return retVal;
++            }
++
++            if (tickInfo.currentTick < tickInfo.continueFrom) {
++                retVal.skip = true;
++                return retVal;
++            }
++            if (tickInfo.currentTick - tickInfo.continueFrom < tickInfo.toTick) {
++                retVal.skip = false;
++                return retVal;
++            }
++            retVal.skip = true;
++            return retVal;
++        } else {
++            retVal.skip = false;
++            return retVal;
++        }
++    }
++
++    public void tickLimiterFinish(RegionizedWorldData regionizedWorldData) {
++        for (var entry : entityLimitTickInfoMap.entrySet()) {
++            KaiijuEntityLimits.EntityLimit entityLimit = entry.getKey();
++            TickInfo tickInfo = entry.getValue();
++
++            int additionals = 0;
++            int nextContinueFrom = tickInfo.continueFrom + tickInfo.toTick;
++            if (nextContinueFrom >= tickInfo.currentTick) {
++                additionals = entityLimit.limit() - (tickInfo.currentTick - tickInfo.continueFrom);
++                nextContinueFrom = 0;
++            }
++            tickInfo.continueFrom = nextContinueFrom;
++            tickInfo.toTick = entityLimit.limit() + additionals;
++
++            if (tickInfo.toRemove == 0 && tickInfo.currentTick > entityLimit.removal()) {
++                tickInfo.toRemove = tickInfo.currentTick - entityLimit.removal();
++            } else if (tickInfo.toRemove != 0) {
++                tickInfo.toRemove = 0;
++            }
++        }
++    }
++}
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+index 8d7821d8b1a3615eaef1073d9dab690559b85f81..816db23fa64aab69e3034484c00645ebd0479978 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+@@ -149,11 +149,13 @@ public class KaiijuWorldConfig {
+     public boolean shulkerBoxDropContentsWhenDestroyed = true;
+     public boolean optimizeHoppers = true;
+     public boolean tickWhenEmpty = true;
++    public boolean enableEntityThrottling = false;
+ 
+     private void optimizationSettings() {
+         shulkerBoxDropContentsWhenDestroyed = getBoolean("optimization.shulker-box-drop-contents-when-destroyed", shulkerBoxDropContentsWhenDestroyed);
+         optimizeHoppers = getBoolean("optimization.optimize-hoppers", optimizeHoppers);
+         tickWhenEmpty = getBoolean("optimization.tick-when-empty", tickWhenEmpty);
++        enableEntityThrottling = getBoolean("optimization.enable-entity-throttling", enableEntityThrottling);
+     }
+ 
+     public boolean fixVoidTrading = true;
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/command/KaiijuCommand.java b/src/main/java/dev/kaiijumc/kaiiju/command/KaiijuCommand.java
+index 6fac162e0ec057af9f3336314d5663554cef0490..efecc7e132c67577577c99bfcf98e2b4ddae14ab 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/command/KaiijuCommand.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/command/KaiijuCommand.java
+@@ -1,6 +1,7 @@
+ package dev.kaiijumc.kaiiju.command;
+ 
+ import dev.kaiijumc.kaiiju.KaiijuConfig;
++import dev.kaiijumc.kaiiju.KaiijuEntityLimits;
+ import net.minecraft.server.MinecraftServer;
+ import net.minecraft.server.level.ServerLevel;
+ import net.md_5.bungee.api.ChatColor;
+@@ -48,6 +49,7 @@ public class KaiijuCommand extends Command {
+ 
+             MinecraftServer console = MinecraftServer.getServer();
+             KaiijuConfig.reload((File) console.options.valueOf("kaiiju-settings"));
++            KaiijuEntityLimits.reload((File) console.options.valueOf("kaiiju-entity-limits"));
+             for (ServerLevel level : console.getAllLevels()) {
+                 level.kaiijuConfig.reload();
+             }
+diff --git a/src/main/java/io/papermc/paper/threadedregions/RegionizedWorldData.java b/src/main/java/io/papermc/paper/threadedregions/RegionizedWorldData.java
+index 65c4e158d81ac5c5788cf4dcb379061aebd23dcd..223bf699d76e53b131b47256df288db60141fd9e 100644
+--- a/src/main/java/io/papermc/paper/threadedregions/RegionizedWorldData.java
++++ b/src/main/java/io/papermc/paper/threadedregions/RegionizedWorldData.java
+@@ -296,6 +296,7 @@ public final class RegionizedWorldData {
+     private final ReferenceList<Entity> allEntities = new ReferenceList<>();
+     private final IteratorSafeOrderedReferenceSet<Entity> entityTickList = new IteratorSafeOrderedReferenceSet<>();
+     private final IteratorSafeOrderedReferenceSet<Mob> navigatingMobs = new IteratorSafeOrderedReferenceSet<>();
++    public final dev.kaiijumc.kaiiju.KaiijuEntityThrottler entityThrottler = new dev.kaiijumc.kaiiju.KaiijuEntityThrottler(); // Kaiiju
+ 
+     // block ticking
+     private final ObjectLinkedOpenHashSet<BlockEventData> blockEvents = new ObjectLinkedOpenHashSet<>();
+diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+index 991e4c19763a34a6fead88363e007c2d11aad836..24a2d3f496727790f63cb66a2534d4423555fa3c 100644
+--- a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
++++ b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+@@ -225,6 +225,12 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
+             DedicatedServer.LOGGER.error("Unable to load server configuration", e);
+             return false;
+         }
++        try {
++            dev.kaiijumc.kaiiju.KaiijuEntityLimits.init((java.io.File) options.valueOf("kaiiju-entity-limits"));
++        } catch (Exception e) {
++            DedicatedServer.LOGGER.error("Unable to load entity limits", e);
++            return false;
++        }
+         gg.pufferfish.pufferfish.simd.SIMDChecker.simdWarning();
+         dev.kaiijumc.kaiiju.KaiijuConfig.registerCommands();
+         // Kaiiju end
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index 66509fa23bfcde70abd3917eb774cf48d5d6da93..8fd9e3cee5a671ef8425311371cde57449ef1d8e 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
++++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -822,6 +822,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
+                 } // Folia end - region threading
+             }
+ 
++            if (kaiijuConfig.enableEntityThrottling) regionizedWorldData.entityThrottler.tickLimiterStart(); // Kaiiju
+             org.spigotmc.ActivationRange.activateEntities(this); // Spigot
+             timings.entityTick.startTiming(); // Spigot
+             regionizedWorldData.forEachTickingEntity((entity) -> { // Folia - regionised ticking
+@@ -844,6 +845,13 @@ public class ServerLevel extends Level implements WorldGenLevel {
+                                 entity.stopRiding();
+                             }
+ 
++                            // Kaiiju start
++                            if (kaiijuConfig.enableEntityThrottling) {
++                                dev.kaiijumc.kaiiju.KaiijuEntityThrottler.EntityThrottlerReturn throttle = regionizedWorldData.entityThrottler.tickLimiterShouldSkip(entity);
++                                if (throttle.remove) entity.remove(Entity.RemovalReason.DISCARDED);
++                                if (throttle.skip) return;
++                            }
++                            // Kaiiju end
+                             gameprofilerfiller.push("tick");
+                             this.guardEntityTick(this::tickNonPassenger, entity);
+                             gameprofilerfiller.pop();
+@@ -851,6 +859,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
+                     }
+                 }
+             });
++            if (kaiijuConfig.enableEntityThrottling) regionizedWorldData.entityThrottler.tickLimiterFinish(regionizedWorldData); // Kaiiju
+             timings.entityTick.stopTiming(); // Spigot
+             timings.tickEntities.stopTiming(); // Spigot
+             gameprofilerfiller.pop();
+diff --git a/src/main/java/org/bukkit/craftbukkit/Main.java b/src/main/java/org/bukkit/craftbukkit/Main.java
+index d8ca697663ace353e88bfabc8997b58230d3d811..c3bb81238afeafa3d59147f21c60022052142977 100644
+--- a/src/main/java/org/bukkit/craftbukkit/Main.java
++++ b/src/main/java/org/bukkit/craftbukkit/Main.java
+@@ -179,6 +179,11 @@ public class Main {
+                     .ofType(File.class)
+                     .defaultsTo(new File("kaiiju.yml"))
+                     .describedAs("Yml file");
++                acceptsAll(asList("kaiiju", "kaiiju-entity-limits"), "File for kaiiju's entity limits")
++                    .withRequiredArg()
++                    .ofType(File.class)
++                    .defaultsTo(new File("kaiiju-entity-limits.yml"))
++                    .describedAs("Yml file");
+                 // Purpur end
+ 
+                 // Paper start

patches/server/0024-Toggle-safe-teleportation.patch

@@ -0,0 +1,53 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Thu, 18 May 2023 20:05:49 +0300
+Subject: [PATCH] Toggle safe teleportation
+
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+index 816db23fa64aab69e3034484c00645ebd0479978..7c6c74f95c2534624a928ccf6b0a4b9d2a5486ad 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+@@ -161,10 +161,12 @@ public class KaiijuWorldConfig {
+     public boolean fixVoidTrading = true;
+     public boolean breakRedstoneOnTopOfTrapDoorsEarly = true;
+     public boolean fixTripWireStateInconsistency = true;
++    public boolean safeTeleporting = true;
+ 
+     private void gameplaySettings() {
+         fixVoidTrading = getBoolean("gameplay.fix-void-trading", fixVoidTrading);
+         breakRedstoneOnTopOfTrapDoorsEarly = getBoolean("gameplay.break-redstone-on-top-of-trap-doors-early", breakRedstoneOnTopOfTrapDoorsEarly);
+         fixTripWireStateInconsistency = getBoolean("gameplay.fix-tripwire-state-inconsistency", fixTripWireStateInconsistency);
++        safeTeleporting = getBoolean("gameplay.safe-teleportation", safeTeleporting);
+     }
+ }
+diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
+index cdf669fc1065632033fab4154f0113474b984152..6941b28b7b5a7ab0e9c950cfa3a5ed224438a65c 100644
+--- a/src/main/java/net/minecraft/world/entity/Entity.java
++++ b/src/main/java/net/minecraft/world/entity/Entity.java
+@@ -3953,6 +3953,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
+ 
+     protected boolean tryEndPortal() {
+         io.papermc.paper.util.TickThread.ensureTickThread(this, "Cannot portal entity async");
++        if (!this.level.kaiijuConfig.safeTeleporting && !(this instanceof net.minecraft.world.entity.player.Player)) return false; // Kaiiju - Unsafe teleportation
+         BlockPos pos = this.portalBlock;
+         ServerLevel world = this.portalWorld;
+         this.portalBlock = null;
+diff --git a/src/main/java/net/minecraft/world/level/block/EndPortalBlock.java b/src/main/java/net/minecraft/world/level/block/EndPortalBlock.java
+index 41d7cff39fc37955877668337689b4b26cd8c7cf..fe21ef0a2c451564694de915f6f4e61dbfeed712 100644
+--- a/src/main/java/net/minecraft/world/level/block/EndPortalBlock.java
++++ b/src/main/java/net/minecraft/world/level/block/EndPortalBlock.java
+@@ -53,6 +53,13 @@ public class EndPortalBlock extends BaseEntityBlock {
+                 // return; // CraftBukkit - always fire event in case plugins wish to change it
+             }
+ 
++            // Kaiiju start - Unsafe teleportation
++            if (!entity.level().kaiijuConfig.safeTeleporting && !(entity instanceof net.minecraft.world.entity.player.Player)) {
++                entity.endPortalLogicAsync();
++                return;
++            }
++            // Kaiiju end
++
+             // Paper start - move all of this logic into portal tick
+             entity.portalWorld = ((ServerLevel)world);
+             entity.portalBlock = pos.immutable();

patches/server/0025-Toggle-sand-duplication.patch

@@ -0,0 +1,46 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Sun, 28 May 2023 01:51:52 +0300
+Subject: [PATCH] Toggle sand duplication
+
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+index 7c6c74f95c2534624a928ccf6b0a4b9d2a5486ad..9f0095f2196133a8bcffd5306aa9ac0b99b2f8d7 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+@@ -162,11 +162,13 @@ public class KaiijuWorldConfig {
+     public boolean breakRedstoneOnTopOfTrapDoorsEarly = true;
+     public boolean fixTripWireStateInconsistency = true;
+     public boolean safeTeleporting = true;
++    public boolean sandDuplication = false;
+ 
+     private void gameplaySettings() {
+         fixVoidTrading = getBoolean("gameplay.fix-void-trading", fixVoidTrading);
+         breakRedstoneOnTopOfTrapDoorsEarly = getBoolean("gameplay.break-redstone-on-top-of-trap-doors-early", breakRedstoneOnTopOfTrapDoorsEarly);
+         fixTripWireStateInconsistency = getBoolean("gameplay.fix-tripwire-state-inconsistency", fixTripWireStateInconsistency);
+         safeTeleporting = getBoolean("gameplay.safe-teleportation", safeTeleporting);
++        sandDuplication = getBoolean("gameplay.sand-duplication", sandDuplication);
+     }
+ }
+diff --git a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
+index 6e35afb9e5314de69e78d819913418ab144bec52..6cff3410c2851aeb808994a4bf830a0db32a9a37 100644
+--- a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
++++ b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
+@@ -131,7 +131,7 @@ public class FallingBlockEntity extends Entity {
+     @Override
+     public void tick() {
+         // Paper start - fix sand duping
+-        if (this.isRemoved()) {
++        if (!this.level().kaiijuConfig.sandDuplication && this.isRemoved()) { // Kaiiju - Toggle sand duplication
+             return;
+         }
+         // Paper end - fix sand duping
+@@ -148,7 +148,7 @@ public class FallingBlockEntity extends Entity {
+             this.move(MoverType.SELF, this.getDeltaMovement());
+ 
+             // Paper start - fix sand duping
+-            if (this.isRemoved()) {
++            if (!this.level().kaiijuConfig.sandDuplication && this.isRemoved()) { // Kaiiju - Toggle sand duplication
+                 return;
+             }
+             // Paper end - fix sand duping

patches/server/0026-Vanilla-end-portal-teleportation.patch

@@ -0,0 +1,27 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Fri, 19 May 2023 03:38:03 +0300
+Subject: [PATCH] Vanilla end portal teleportation
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
+index 6941b28b7b5a7ab0e9c950cfa3a5ed224438a65c..7dcba5ed8ad3cda9951c6193273261754e8ef63b 100644
+--- a/src/main/java/net/minecraft/world/entity/Entity.java
++++ b/src/main/java/net/minecraft/world/entity/Entity.java
+@@ -4041,10 +4041,15 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
+                         (chunks) -> {
+                             ServerLevel.makeObsidianPlatform(destination, null, targetPos);
+ 
++                            // Kaiiju start - Vanilla end teleportation
++                            Vec3 finalPos;
++                            if (this instanceof Player) finalPos = Vec3.atBottomCenterOf(targetPos.below());
++                            else finalPos = Vec3.atBottomCenterOf(targetPos);
++                            // Kaiiju end
+                             // the portal obsidian is placed at targetPos.y - 2, so if we want to place the entity
+                             // on the obsidian, we need to spawn at targetPos.y - 1
+                             portalInfoCompletable.complete(
+-                                new PortalInfo(Vec3.atBottomCenterOf(targetPos.below()), Vec3.ZERO, 90.0f, 0.0f, destination, null)
++                                new PortalInfo(finalPos, this.getDeltaMovement(), 90.0f, 0.0f, destination, null) // Kaiiju - Vanilla end teleportation
+                             );
+                         }
+                     );

patches/server/0027-Swap-distanceToSqr-and-target-test.patch

@@ -0,0 +1,46 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Xymb <xymb@endcrystal.me>
+Date: Sat, 17 Jun 2023 19:52:29 +0300
+Subject: [PATCH] Swap distanceToSqr and target test
+
+
+diff --git a/src/main/java/net/minecraft/world/level/EntityGetter.java b/src/main/java/net/minecraft/world/level/EntityGetter.java
+index b1a6a66ed02706c1adc36dcedfa415f5a24a25a0..97a5eca200fd606d6102e40f9b8c32c2e7652cf9 100644
+--- a/src/main/java/net/minecraft/world/level/EntityGetter.java
++++ b/src/main/java/net/minecraft/world/level/EntityGetter.java
+@@ -99,9 +99,9 @@ public interface EntityGetter {
+         Player player = null;
+ 
+         for(Player player2 : this.getLocalPlayers()) { // Folia - region threading
+-            if (targetPredicate == null || targetPredicate.test(player2)) {
++            if (true || targetPredicate == null || targetPredicate.test(player2)) { // Kaiiju - Move this down
+                 double e = player2.distanceToSqr(x, y, z);
+-                if ((maxDistance < 0.0D || e < maxDistance * maxDistance) && (d == -1.0D || e < d)) {
++                if ((maxDistance < 0.0D || e < maxDistance * maxDistance) && (d == -1.0D || e < d) && (targetPredicate == null || targetPredicate.test(player2))) { // Kaiiju
+                     d = e;
+                     player = player2;
+                 }
+@@ -147,9 +147,10 @@ public interface EntityGetter {
+     // Paper start
+     default boolean hasNearbyAlivePlayerThatAffectsSpawning(double x, double y, double z, double range) {
+         for (Player player : this.getLocalPlayers()) { // Folia - region threading
+-            if (EntitySelector.PLAYER_AFFECTS_SPAWNING.test(player)) { // combines NO_SPECTATORS and LIVING_ENTITY_STILL_ALIVE with an "affects spawning" check
++            if (true || EntitySelector.PLAYER_AFFECTS_SPAWNING.test(player)) { // combines NO_SPECTATORS and LIVING_ENTITY_STILL_ALIVE with an "affects spawning" check // Kaiiju - Move this down
+                 double distanceSqr = player.distanceToSqr(x, y, z);
+                 if (range < 0.0D || distanceSqr < range * range) {
++                    if (EntitySelector.PLAYER_AFFECTS_SPAWNING.test(player)) // Kaiiju
+                     return true;
+                 }
+             }
+@@ -199,9 +200,9 @@ public interface EntityGetter {
+         T livingEntity = null;
+ 
+         for(T livingEntity2 : entityList) {
+-            if (targetPredicate.test(entity, livingEntity2)) {
++            if (true || targetPredicate.test(entity, livingEntity2)) { // Kaiiju - Move this down
+                 double e = livingEntity2.distanceToSqr(x, y, z);
+-                if (d == -1.0D || e < d) {
++                if ((d == -1.0D || e < d) && targetPredicate.test(entity, livingEntity2)) { // Kaiiju
+                     d = e;
+                     livingEntity = livingEntity2;
+                 }

patches/server/0028-Use-Math.floor-instead-of-fastfloor.patch

@@ -0,0 +1,34 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Xymb <xymb@endcrystal.me>
+Date: Sat, 17 Jun 2023 21:03:04 +0300
+Subject: [PATCH] Use Math.floor instead of fastfloor
+
+
+diff --git a/src/main/java/io/papermc/paper/util/MCUtil.java b/src/main/java/io/papermc/paper/util/MCUtil.java
+index 38441121cf7cdc1d64ef9fc17ae76dc16fbf96f2..3f76e1bc0c08775353d22b7d928536aba9c8ad1d 100644
+--- a/src/main/java/io/papermc/paper/util/MCUtil.java
++++ b/src/main/java/io/papermc/paper/util/MCUtil.java
+@@ -164,13 +164,19 @@ public final class MCUtil {
+     }
+ 
+     public static int fastFloor(double x) {
+-        int truncated = (int)x;
+-        return x < (double)truncated ? truncated - 1 : truncated;
++        // Kaiiju start - Use Math.floor instead of fastfloor
++        return (int)Math.floor(x); // Kaiiju
++        //int truncated = (int)x;
++        //return x < (double)truncated ? truncated - 1 : truncated;
++        // Kaiiju end
+     }
+ 
+     public static int fastFloor(float x) {
+-        int truncated = (int)x;
+-        return x < (double)truncated ? truncated - 1 : truncated;
++        // Kaiiju start - Use Math.floor instead of fastfloor
++        return (int)Math.floor(x); // Kaiiju
++        //int truncated = (int)x;
++        //return x < (double)truncated ? truncated - 1 : truncated;
++        // Kaiiju end
+     }
+ 
+     public static float normalizeYaw(float f) {

patches/server/0029-Allow-user-to-enable-moving-into-unloaded-chunks.patch

@@ -0,0 +1,27 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Sun, 18 Jun 2023 18:10:19 +0300
+Subject: [PATCH] Allow user to enable moving into unloaded chunks
+
+
+diff --git a/src/main/java/io/papermc/paper/configuration/WorldConfiguration.java b/src/main/java/io/papermc/paper/configuration/WorldConfiguration.java
+index a00201eca053ef69b8d903fdb9538444baf85465..bb9f088e3b7b90ab38d794433fc5d30d39e12c76 100644
+--- a/src/main/java/io/papermc/paper/configuration/WorldConfiguration.java
++++ b/src/main/java/io/papermc/paper/configuration/WorldConfiguration.java
+@@ -415,14 +415,14 @@ public class WorldConfiguration extends ConfigurationPart {
+     public class Chunks extends Post {
+         @Override
+         public void postProcess() {
+-            this.preventMovingIntoUnloadedChunks = true;
++            //this.preventMovingIntoUnloadedChunks = true; // Kaiiju - Don't
+         }
+         // Folia end - region threading - force prevent moving into unloaded chunks
+ 
+         public AutosavePeriod autoSaveInterval = AutosavePeriod.def();
+         public int maxAutoSaveChunksPerTick = 24;
+         public int fixedChunkInhabitedTime = -1;
+-        public boolean preventMovingIntoUnloadedChunks = false;
++        public boolean preventMovingIntoUnloadedChunks = true; // Kaiiju - True not False
+         public Duration delayChunkUnloadsBy = Duration.of("10s");
+         public Reference2IntMap<EntityType<?>> entityPerChunkSaveLimit = Util.make(new Reference2IntOpenHashMap<>(BuiltInRegistries.ENTITY_TYPE.size()), map -> {
+             map.defaultReturnValue(-1);

patches/server/0030-Don-t-pathfind-outside-region.patch

@@ -0,0 +1,20 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Mon, 19 Jun 2023 01:49:00 +0300
+Subject: [PATCH] Don't pathfind outside region
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/ai/behavior/MoveToTargetSink.java b/src/main/java/net/minecraft/world/entity/ai/behavior/MoveToTargetSink.java
+index 1ab77f3518d1df30f66ae44d7d4fa69e5b32d93a..98bf17441da3169d49de55fe89d79ebe250a2b7e 100644
+--- a/src/main/java/net/minecraft/world/entity/ai/behavior/MoveToTargetSink.java
++++ b/src/main/java/net/minecraft/world/entity/ai/behavior/MoveToTargetSink.java
+@@ -107,7 +107,9 @@ public class MoveToTargetSink extends Behavior<Mob> {
+ 
+     private boolean tryComputePath(Mob entity, WalkTarget walkTarget, long time) {
+         BlockPos blockPos = walkTarget.getTarget().currentBlockPosition();
++        if (io.papermc.paper.util.TickThread.isTickThreadFor((ServerLevel) entity.level(), blockPos)) // Kaiiju - Don't pathfind outside region
+         this.path = entity.getNavigation().createPath(blockPos, 0);
++        else this.path = null; // Kaiiju - Don't pathfind outside region
+         this.speedModifier = walkTarget.getSpeedModifier();
+         Brain<?> brain = entity.getBrain();
+         if (this.reachedTarget(entity, walkTarget)) {

patches/server/0031-Don-t-spam-recipe-changes-on-update.patch

@@ -0,0 +1,32 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Mon, 19 Jun 2023 21:30:19 +0300
+Subject: [PATCH] Don't spam recipe changes on update
+
+
+diff --git a/src/main/java/net/minecraft/server/PlayerAdvancements.java b/src/main/java/net/minecraft/server/PlayerAdvancements.java
+index acc49f66bf34e2507d0ee6fec0a56b11bfc68f46..6c705189b84542db584039763821b222df03e5d1 100644
+--- a/src/main/java/net/minecraft/server/PlayerAdvancements.java
++++ b/src/main/java/net/minecraft/server/PlayerAdvancements.java
+@@ -147,7 +147,7 @@ public class PlayerAdvancements {
+                         if (advancement == null) {
+                             // CraftBukkit start
+                             if (entry.getKey().getNamespace().equals("minecraft")) {
+-                                PlayerAdvancements.LOGGER.warn("Ignored advancement '{}' in progress file {} - it doesn't exist anymore?", entry.getKey(), this.playerSavePath);
++                                //PlayerAdvancements.LOGGER.warn("Ignored advancement '{}' in progress file {} - it doesn't exist anymore?", entry.getKey(), this.playerSavePath); // Kaiiju - We already know, don't spam.
+                             }
+                             // CraftBukkit end
+                         } else {
+diff --git a/src/main/java/net/minecraft/stats/ServerRecipeBook.java b/src/main/java/net/minecraft/stats/ServerRecipeBook.java
+index ea29e07a105f3ba6a878bdccf36e7eaf66280280..8bbb5feea4190344fd6b3a3ae9f1c3cae578b9a6 100644
+--- a/src/main/java/net/minecraft/stats/ServerRecipeBook.java
++++ b/src/main/java/net/minecraft/stats/ServerRecipeBook.java
+@@ -125,7 +125,7 @@ public class ServerRecipeBook extends RecipeBook {
+                 Optional<? extends Recipe<?>> optional = recipeManager.byKey(minecraftkey);
+ 
+                 if (!optional.isPresent()) {
+-                    ServerRecipeBook.LOGGER.error("Tried to load unrecognized recipe: {} removed now.", minecraftkey);
++                    //ServerRecipeBook.LOGGER.error("Tried to load unrecognized recipe: {} removed now.", minecraftkey); // Kaiiju - We already know, don't spam.
+                 } else {
+                     handler.accept((Recipe) optional.get());
+                 }

patches/server/0032-Option-to-disable-vanish-api.patch

@@ -0,0 +1,38 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Xymb <xymb@endcrystal.me>
+Date: Thu, 22 Jun 2023 00:14:47 +0200
+Subject: [PATCH] Option to disable vanish api
+
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+index c934341c17caf4696065ac6c39bdfef570c62f13..f49510c999ce5241f26dc9ba90a6148bf31467c7 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+@@ -207,7 +207,10 @@ public class KaiijuConfig {
+         alternateKeepAlive = getBoolean("network.alternate-keepalive", alternateKeepAlive);
+     }
+ 
++    public static boolean disableVanishApi = false;
++
+     private static void optimizationSettings() {
++        disableVanishApi = getBoolean("optimization.disable-vanish-api", disableVanishApi);
+     }
+ 
+     public static String serverModName = "Kaiiju";
+diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
+index f50507ab85282d261985ce9b186581f5a7a50f79..4fb7ee801173c3f4621d7f09fcefe7c24da5f001 100644
+--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
++++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
+@@ -1350,7 +1350,11 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
+                 boolean flag = d1 <= d2 && this.entity.broadcastToPlayer(player);
+ 
+                 // CraftBukkit start - respect vanish API
+-                if (!io.papermc.paper.util.TickThread.isTickThreadFor(player) || !player.getBukkitEntity().canSee(this.entity.getBukkitEntity())) { // Folia - region threading
++                // Kaiiju start - don't respect vanish API >:D
++                boolean canSee = true;
++                if (!dev.kaiijumc.kaiiju.KaiijuConfig.disableVanishApi) canSee = player.getBukkitEntity().canSee(this.entity.getBukkitEntity());
++                if (!io.papermc.paper.util.TickThread.isTickThreadFor(player) || !canSee) { // Folia - region threading
++                // Kaiiju end
+                     flag = false;
+                 }
+                 // CraftBukkit end

patches/server/0033-Option-to-disable-player-stats.patch

@@ -0,0 +1,34 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Xymb <xymb@endcrystal.me>
+Date: Thu, 22 Jun 2023 00:17:57 +0200
+Subject: [PATCH] Option to disable player stats
+
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+index f49510c999ce5241f26dc9ba90a6148bf31467c7..b23f2df433d7ebc871f4009081c28ed9054d91c7 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+@@ -208,9 +208,11 @@ public class KaiijuConfig {
+     }
+ 
+     public static boolean disableVanishApi = false;
++    public static boolean disablePlayerStats = false;
+ 
+     private static void optimizationSettings() {
+         disableVanishApi = getBoolean("optimization.disable-vanish-api", disableVanishApi);
++        disablePlayerStats = getBoolean("optimization.disable-player-stats", disablePlayerStats);
+     }
+ 
+     public static String serverModName = "Kaiiju";
+diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+index d58e8211fc765c61548ac2a180de87dd2934ba37..19642e7bf00dc9fdc157e70b4d6849a9898a2557 100644
+--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
++++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+@@ -2081,6 +2081,7 @@ public class ServerPlayer extends Player {
+ 
+     @Override
+     public void awardStat(Stat<?> stat, int amount) {
++        if (dev.kaiijumc.kaiiju.KaiijuConfig.disablePlayerStats) return; // Kaiiju - Disable player stats
+         this.stats.increment(this, stat, amount);
+         this.level().getCraftServer().getScoreboardManager().getScoreboardScores(stat, this.getScoreboardName(), (scoreboardscore) -> { // CraftBukkit - Get our scores instead
+             scoreboardscore.add(amount);

patches/server/0034-Option-to-disable-achievements.patch

@@ -0,0 +1,175 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Xymb <xymb@endcrystal.me>
+Date: Thu, 22 Jun 2023 00:32:36 +0200
+Subject: [PATCH] Option to disable achievements
+
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+index 9f0095f2196133a8bcffd5306aa9ac0b99b2f8d7..31d66bb2fcf4bb7262df2d8006e307fee92660ea 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+@@ -150,12 +150,14 @@ public class KaiijuWorldConfig {
+     public boolean optimizeHoppers = true;
+     public boolean tickWhenEmpty = true;
+     public boolean enableEntityThrottling = false;
++    public boolean disableAchievements = false;
+ 
+     private void optimizationSettings() {
+         shulkerBoxDropContentsWhenDestroyed = getBoolean("optimization.shulker-box-drop-contents-when-destroyed", shulkerBoxDropContentsWhenDestroyed);
+         optimizeHoppers = getBoolean("optimization.optimize-hoppers", optimizeHoppers);
+         tickWhenEmpty = getBoolean("optimization.tick-when-empty", tickWhenEmpty);
+         enableEntityThrottling = getBoolean("optimization.enable-entity-throttling", enableEntityThrottling);
++        disableAchievements = getBoolean("optimization.disable-achievements", disableAchievements);
+     }
+ 
+     public boolean fixVoidTrading = true;
+diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+index 19642e7bf00dc9fdc157e70b4d6849a9898a2557..5e81fd3b1f88f33314f7b24b3e9ba2be21addd0c 100644
+--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
++++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+@@ -734,7 +734,7 @@ public class ServerPlayer extends Player {
+ 
+     @Override
+     protected void onInsideBlock(BlockState state) {
+-        CriteriaTriggers.ENTER_BLOCK.trigger(this, state);
++        if (!this.level().kaiijuConfig.disableAchievements) CriteriaTriggers.ENTER_BLOCK.trigger(this, state); // Kaiiju
+     }
+ 
+     @Override
+@@ -781,9 +781,9 @@ public class ServerPlayer extends Player {
+             }
+         }
+ 
+-        CriteriaTriggers.TICK.trigger(this);
++        if (!this.level().kaiijuConfig.disableAchievements) CriteriaTriggers.TICK.trigger(this); // Kaiiju
+         if (this.levitationStartPos != null) {
+-            CriteriaTriggers.LEVITATION.trigger(this, this.levitationStartPos, this.tickCount - this.levitationStartTime);
++            if (!this.level().kaiijuConfig.disableAchievements) CriteriaTriggers.LEVITATION.trigger(this, this.levitationStartPos, this.tickCount - this.levitationStartTime); // Kaiiju
+         }
+ 
+         this.trackStartFallingPosition();
+@@ -858,7 +858,7 @@ public class ServerPlayer extends Player {
+             }
+ 
+             if (this.tickCount % 20 == 0) {
+-                CriteriaTriggers.LOCATION.trigger(this);
++                if (!this.level().kaiijuConfig.disableAchievements) CriteriaTriggers.LOCATION.trigger(this); // Kaiiju
+             }
+ 
+             // CraftBukkit start - initialize oldLevel, fire PlayerLevelChangeEvent, and tick client-sided world border
+@@ -887,7 +887,7 @@ public class ServerPlayer extends Player {
+     @Override
+     public void resetFallDistance() {
+         if (this.getHealth() > 0.0F && this.startingToFallPosition != null) {
+-            CriteriaTriggers.FALL_FROM_HEIGHT.trigger(this, this.startingToFallPosition);
++            if (!this.level().kaiijuConfig.disableAchievements) CriteriaTriggers.FALL_FROM_HEIGHT.trigger(this, this.startingToFallPosition); // Kaiiju
+         }
+ 
+         this.startingToFallPosition = null;
+@@ -906,7 +906,7 @@ public class ServerPlayer extends Player {
+             if (this.enteredLavaOnVehiclePosition == null) {
+                 this.enteredLavaOnVehiclePosition = this.position();
+             } else {
+-                CriteriaTriggers.RIDE_ENTITY_IN_LAVA_TRIGGER.trigger(this, this.enteredLavaOnVehiclePosition);
++                if (!this.level().kaiijuConfig.disableAchievements) CriteriaTriggers.RIDE_ENTITY_IN_LAVA_TRIGGER.trigger(this, this.enteredLavaOnVehiclePosition); // Kaiiju
+             }
+         }
+ 
+@@ -1110,7 +1110,7 @@ public class ServerPlayer extends Player {
+ 
+             this.handleTeamKill(s, s1, ObjectiveCriteria.TEAM_KILL);
+             this.handleTeamKill(s1, s, ObjectiveCriteria.KILLED_BY_TEAM);
+-            CriteriaTriggers.PLAYER_KILLED_ENTITY.trigger(this, entityKilled, damageSource);
++            if (!this.level().kaiijuConfig.disableAchievements) CriteriaTriggers.PLAYER_KILLED_ENTITY.trigger(this, entityKilled, damageSource); // Kaiiju
+         }
+     }
+ 
+@@ -1228,7 +1228,7 @@ public class ServerPlayer extends Player {
+         this.wonGame = false;
+ 
+         this.respawn((player) -> {
+-            CriteriaTriggers.CHANGED_DIMENSION.trigger(player, Level.END, Level.OVERWORLD);
++            if (!this.level().kaiijuConfig.disableAchievements) CriteriaTriggers.CHANGED_DIMENSION.trigger(player, Level.END, Level.OVERWORLD); // Kaiiju
+         }, true);
+     }
+ 
+@@ -1730,14 +1730,14 @@ public class ServerPlayer extends Player {
+             maindimensionkey1 = resourcekey1;
+         }
+         // Paper end
+-        CriteriaTriggers.CHANGED_DIMENSION.trigger(this, maindimensionkey, maindimensionkey1);
++        if (!this.level().kaiijuConfig.disableAchievements) CriteriaTriggers.CHANGED_DIMENSION.trigger(this, maindimensionkey, maindimensionkey1); // Kaiiju
+         if (maindimensionkey != resourcekey || maindimensionkey1 != resourcekey1) {
+-            CriteriaTriggers.CHANGED_DIMENSION.trigger(this, resourcekey, resourcekey1);
++            if (!this.level().kaiijuConfig.disableAchievements) CriteriaTriggers.CHANGED_DIMENSION.trigger(this, resourcekey, resourcekey1); // Kaiiju
+         }
+ 
+         if (maindimensionkey == Level.NETHER && maindimensionkey1 == Level.OVERWORLD && this.enteredNetherPosition != null) {
+             // CraftBukkit end
+-            CriteriaTriggers.NETHER_TRAVEL.trigger(this, this.enteredNetherPosition);
++            if (!this.level().kaiijuConfig.disableAchievements) CriteriaTriggers.NETHER_TRAVEL.trigger(this, this.enteredNetherPosition); // Kaiiju
+         }
+ 
+         if (maindimensionkey1 != Level.NETHER) { // CraftBukkit
+@@ -1815,7 +1815,7 @@ public class ServerPlayer extends Player {
+                 {
+                     Either<Player.BedSleepingProblem, Unit> either = super.startSleepInBed(blockposition, force).ifRight((unit) -> {
+                         this.awardStat(Stats.SLEEP_IN_BED);
+-                        CriteriaTriggers.SLEPT_IN_BED.trigger(this);
++                        if (!this.level().kaiijuConfig.disableAchievements) CriteriaTriggers.SLEPT_IN_BED.trigger(this); // Kaiiju
+                     });
+ 
+                     if (!this.serverLevel().canSleepThroughNights()) {
+@@ -2101,7 +2101,7 @@ public class ServerPlayer extends Player {
+ 
+     @Override
+     public void triggerRecipeCrafted(Recipe<?> recipe, List<ItemStack> ingredients) {
+-        CriteriaTriggers.RECIPE_CRAFTED.trigger(this, recipe.getId(), ingredients);
++        if (!this.level().kaiijuConfig.disableAchievements) CriteriaTriggers.RECIPE_CRAFTED.trigger(this, recipe.getId(), ingredients); // Kaiiju
+     }
+ 
+     @Override
+@@ -2230,14 +2230,14 @@ public class ServerPlayer extends Player {
+             this.levitationStartPos = this.position();
+         }
+ 
+-        CriteriaTriggers.EFFECTS_CHANGED.trigger(this, source);
++        if (!this.level().kaiijuConfig.disableAchievements) CriteriaTriggers.EFFECTS_CHANGED.trigger(this, source); // Kaiiju
+     }
+ 
+     @Override
+     protected void onEffectUpdated(MobEffectInstance effect, boolean reapplyEffect, @Nullable Entity source) {
+         super.onEffectUpdated(effect, reapplyEffect, source);
+         this.connection.send(new ClientboundUpdateMobEffectPacket(this.getId(), effect));
+-        CriteriaTriggers.EFFECTS_CHANGED.trigger(this, source);
++        if (!this.level().kaiijuConfig.disableAchievements) CriteriaTriggers.EFFECTS_CHANGED.trigger(this, source); // Kaiiju
+     }
+ 
+     @Override
+@@ -2248,7 +2248,7 @@ public class ServerPlayer extends Player {
+             this.levitationStartPos = null;
+         }
+ 
+-        CriteriaTriggers.EFFECTS_CHANGED.trigger(this, (Entity) null);
++        if (!this.level().kaiijuConfig.disableAchievements) CriteriaTriggers.EFFECTS_CHANGED.trigger(this, (Entity) null); // Kaiiju
+     }
+ 
+     @Override
+@@ -2808,7 +2808,7 @@ public class ServerPlayer extends Player {
+ 
+     @Override
+     protected void updateUsingItem(ItemStack stack) {
+-        CriteriaTriggers.USING_ITEM.trigger(this, stack);
++        if (!this.level().kaiijuConfig.disableAchievements) CriteriaTriggers.USING_ITEM.trigger(this, stack); // Kaiiju
+         super.updateUsingItem(stack);
+     }
+ 
+@@ -2837,7 +2837,7 @@ public class ServerPlayer extends Player {
+         Entity entity = item.getOwner();
+ 
+         if (entity != null) {
+-            CriteriaTriggers.THROWN_ITEM_PICKED_UP_BY_PLAYER.trigger(this, item.getItem(), entity);
++            if (!this.level().kaiijuConfig.disableAchievements) CriteriaTriggers.THROWN_ITEM_PICKED_UP_BY_PLAYER.trigger(this, item.getItem(), entity); // Kaiiju
+         }
+ 
+     }

patches/server/0035-Option-to-disable-arm-swing-event.patch

@@ -0,0 +1,43 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Xymb <xymb@endcrystal.me>
+Date: Thu, 22 Jun 2023 00:37:27 +0200
+Subject: [PATCH] Option to disable arm swing event
+
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+index b23f2df433d7ebc871f4009081c28ed9054d91c7..ec71f3f52cb8f7931aabd94619d2e7a24491d7ad 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+@@ -209,10 +209,12 @@ public class KaiijuConfig {
+ 
+     public static boolean disableVanishApi = false;
+     public static boolean disablePlayerStats = false;
++    public static boolean disableArmSwingEvent = false;
+ 
+     private static void optimizationSettings() {
+         disableVanishApi = getBoolean("optimization.disable-vanish-api", disableVanishApi);
+         disablePlayerStats = getBoolean("optimization.disable-player-stats", disablePlayerStats);
++        disableArmSwingEvent = getBoolean("optimization.disable-arm-swing-event", disableArmSwingEvent);
+     }
+ 
+     public static String serverModName = "Kaiiju";
+diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+index b2ed157a17cada4887e543a23ee65642eb54637e..a238a3f62a92748d1dfb11fcf8938d33409b7a0c 100644
+--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+@@ -2647,6 +2647,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
+         PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel());
+         if (this.player.isImmobile()) return; // CraftBukkit
+         this.player.resetLastActionTime();
++        if (!dev.kaiijumc.kaiiju.KaiijuConfig.disableArmSwingEvent) { // Kaiiju
+         // CraftBukkit start - Raytrace to look for 'rogue armswings'
+         float f1 = this.player.getXRot();
+         float f2 = this.player.getYRot();
+@@ -2669,6 +2670,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
+ 
+         if (event.isCancelled()) return;
+         // CraftBukkit end
++        } // Kaiiju
+         this.player.swing(packet.getHand());
+     }
+ 

patches/server/0036-Option-to-disable-creatures-spawn-events.patch

@@ -0,0 +1,63 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Xymb <xymb@endcrystal.me>
+Date: Thu, 22 Jun 2023 00:47:57 +0200
+Subject: [PATCH] Option to disable creatures spawn events
+
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+index 31d66bb2fcf4bb7262df2d8006e307fee92660ea..c9830912019079369268bfbf2c95de18ad598f52 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+@@ -151,6 +151,7 @@ public class KaiijuWorldConfig {
+     public boolean tickWhenEmpty = true;
+     public boolean enableEntityThrottling = false;
+     public boolean disableAchievements = false;
++    public boolean disableCreaturesSpawnEvents = false;
+ 
+     private void optimizationSettings() {
+         shulkerBoxDropContentsWhenDestroyed = getBoolean("optimization.shulker-box-drop-contents-when-destroyed", shulkerBoxDropContentsWhenDestroyed);
+@@ -158,6 +159,7 @@ public class KaiijuWorldConfig {
+         tickWhenEmpty = getBoolean("optimization.tick-when-empty", tickWhenEmpty);
+         enableEntityThrottling = getBoolean("optimization.enable-entity-throttling", enableEntityThrottling);
+         disableAchievements = getBoolean("optimization.disable-achievements", disableAchievements);
++        disableCreaturesSpawnEvents = getBoolean("optimization.disable-creatures-spawn-events", disableCreaturesSpawnEvents);
+     }
+ 
+     public boolean fixVoidTrading = true;
+diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+index af35fd63b090aa3d89bc60cb9cb7694b5f502681..e5dded0363b14608e834e63e678563b1423d66e7 100644
+--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
++++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+@@ -486,21 +486,29 @@ public class ServerChunkCache extends ChunkSource {
+                 chunkRange = (chunkRange > viewDistance) ? (byte)viewDistance : chunkRange;
+                 chunkRange = (chunkRange > DistanceManager.MOB_SPAWN_RANGE) ? DistanceManager.MOB_SPAWN_RANGE : chunkRange;
+ 
+-                com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent event = new com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent(player.getBukkitEntity(), (byte)chunkRange);
++                // Kaiiju start - disable creatures spawn events
++                com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent event = null;
++                if (!this.level.kaiijuConfig.disableCreaturesSpawnEvents) {
++                event = new com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent(player.getBukkitEntity(), (byte)chunkRange);
++                // Kaiiju end
+                 event.callEvent();
+                 if (event.isCancelled() || event.getSpawnRadius() < 0) { // Folia - region threading
+                     player.lastEntitySpawnRadiusSquared = -1.0; player.playerNaturallySpawnedEvent = null;  // Folia - region threading
+                     regionizedWorldData.mobSpawnMap.remove(player); // Folia - region threading
+                     continue;
+                 }
++                // Kaiiju start - disable creatures spawn events
++                chunkRange = Math.min(event.getSpawnRadius(), 32);
++                }
++                // Kaiiju end
+ 
+-                int range = Math.min(event.getSpawnRadius(), 32); // limit to max view distance
++                int range = chunkRange; // limit to max view distance // Kaiiju
+                 int chunkX = io.papermc.paper.util.MCUtil.getChunkCoordinate(player.getX());
+                 int chunkZ = io.papermc.paper.util.MCUtil.getChunkCoordinate(player.getZ());
+ 
+                 regionizedWorldData.mobSpawnMap.addOrUpdate(player, chunkX, chunkZ, range); // Folia - region threading
+                 player.lastEntitySpawnRadiusSquared = (double)((range << 4) * (range << 4)); // used in anyPlayerCloseEnoughForSpawning
+-                player.playerNaturallySpawnedEvent = event;
++                if (!this.level.kaiijuConfig.disableCreaturesSpawnEvents) player.playerNaturallySpawnedEvent = event; // Kaiiju
+             }
+             // Paper end - optimize isOutisdeRange
+             LevelData worlddata = this.level.getLevelData();

patches/server/0037-Option-to-disable-dolphin-swim-to-treasure.patch

@@ -0,0 +1,39 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Xymb <xymb@endcrystal.me>
+Date: Thu, 22 Jun 2023 00:52:00 +0200
+Subject: [PATCH] Option to disable dolphin swim to treasure
+
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+index c9830912019079369268bfbf2c95de18ad598f52..e2fb7d7a7b3126d386b46442c115085d1974ac4e 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuWorldConfig.java
+@@ -152,6 +152,7 @@ public class KaiijuWorldConfig {
+     public boolean enableEntityThrottling = false;
+     public boolean disableAchievements = false;
+     public boolean disableCreaturesSpawnEvents = false;
++    public boolean disableDolphinSwimToTreasure = false;
+ 
+     private void optimizationSettings() {
+         shulkerBoxDropContentsWhenDestroyed = getBoolean("optimization.shulker-box-drop-contents-when-destroyed", shulkerBoxDropContentsWhenDestroyed);
+@@ -160,6 +161,7 @@ public class KaiijuWorldConfig {
+         enableEntityThrottling = getBoolean("optimization.enable-entity-throttling", enableEntityThrottling);
+         disableAchievements = getBoolean("optimization.disable-achievements", disableAchievements);
+         disableCreaturesSpawnEvents = getBoolean("optimization.disable-creatures-spawn-events", disableCreaturesSpawnEvents);
++        disableDolphinSwimToTreasure = getBoolean("optimization.disable-dolphin-swim-to-treasure", disableDolphinSwimToTreasure);
+     }
+ 
+     public boolean fixVoidTrading = true;
+diff --git a/src/main/java/net/minecraft/world/entity/animal/Dolphin.java b/src/main/java/net/minecraft/world/entity/animal/Dolphin.java
+index 501e6cb4aa83f81c1f657e41f4e7f11d19d46831..8240b8e27d5f5e941049f269718670db0510f497 100644
+--- a/src/main/java/net/minecraft/world/entity/animal/Dolphin.java
++++ b/src/main/java/net/minecraft/world/entity/animal/Dolphin.java
+@@ -160,7 +160,7 @@ public class Dolphin extends WaterAnimal {
+     protected void registerGoals() {
+         this.goalSelector.addGoal(0, new BreathAirGoal(this));
+         this.goalSelector.addGoal(0, new TryFindWaterGoal(this));
+-        this.goalSelector.addGoal(1, new Dolphin.DolphinSwimToTreasureGoal(this));
++        if (!this.level().kaiijuConfig.disableDolphinSwimToTreasure) this.goalSelector.addGoal(1, new Dolphin.DolphinSwimToTreasureGoal(this)); // Kaiiju
+         this.goalSelector.addGoal(2, new Dolphin.DolphinSwimWithPlayerGoal(this, 4.0D));
+         this.goalSelector.addGoal(4, new RandomSwimmingGoal(this, 1.0D, 10));
+         this.goalSelector.addGoal(4, new RandomLookAroundGoal(this));

patches/server/0038-Option-to-disable-ensure-tick-thread-checks.patch

@@ -0,0 +1,84 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Xymb <xymb@endcrystal.me>
+Date: Thu, 22 Jun 2023 00:55:17 +0200
+Subject: [PATCH] Option to disable ensure tick thread checks
+
+
+diff --git a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+index ec71f3f52cb8f7931aabd94619d2e7a24491d7ad..fa2a763e5784e7dae02c94a13751cbf746b6eee8 100644
+--- a/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
++++ b/src/main/java/dev/kaiijumc/kaiiju/KaiijuConfig.java
+@@ -210,11 +210,13 @@ public class KaiijuConfig {
+     public static boolean disableVanishApi = false;
+     public static boolean disablePlayerStats = false;
+     public static boolean disableArmSwingEvent = false;
++    public static boolean disableEnsureTickThreadChecks = false;
+ 
+     private static void optimizationSettings() {
+         disableVanishApi = getBoolean("optimization.disable-vanish-api", disableVanishApi);
+         disablePlayerStats = getBoolean("optimization.disable-player-stats", disablePlayerStats);
+         disableArmSwingEvent = getBoolean("optimization.disable-arm-swing-event", disableArmSwingEvent);
++        disableEnsureTickThreadChecks = getBoolean("optimization.disable-ensure-tick-thread-checks", disableEnsureTickThreadChecks);
+     }
+ 
+     public static String serverModName = "Kaiiju";
+diff --git a/src/main/java/io/papermc/paper/util/TickThread.java b/src/main/java/io/papermc/paper/util/TickThread.java
+index cb453dd110fc37fae75257a4576512126207763e..492e6a512343001d3d772d2d8b427d2d84e89da5 100644
+--- a/src/main/java/io/papermc/paper/util/TickThread.java
++++ b/src/main/java/io/papermc/paper/util/TickThread.java
+@@ -46,6 +46,7 @@ public class TickThread extends Thread {
+      */
+     @Deprecated
+     public static void ensureTickThread(final String reason) {
++        if (dev.kaiijumc.kaiiju.KaiijuConfig.disableEnsureTickThreadChecks) return; // Kaiiju
+         if (!isTickThread()) {
+             MinecraftServer.LOGGER.error("Thread " + Thread.currentThread().getName() + " failed main thread check: " + reason, new Throwable());
+             throw new IllegalStateException(reason);
+@@ -53,6 +54,7 @@ public class TickThread extends Thread {
+     }
+ 
+     public static void ensureTickThread(final ServerLevel world, final BlockPos pos, final String reason) {
++        if (dev.kaiijumc.kaiiju.KaiijuConfig.disableEnsureTickThreadChecks) return; // Kaiiju
+         if (!isTickThreadFor(world, pos)) {
+             MinecraftServer.LOGGER.error("Thread " + Thread.currentThread().getName() + " failed main thread check: " + reason, new Throwable());
+             throw new IllegalStateException(reason);
+@@ -60,6 +62,7 @@ public class TickThread extends Thread {
+     }
+ 
+     public static void ensureTickThread(final ServerLevel world, final ChunkPos pos, final String reason) {
++        if (dev.kaiijumc.kaiiju.KaiijuConfig.disableEnsureTickThreadChecks) return; // Kaiiju
+         if (!isTickThreadFor(world, pos)) {
+             MinecraftServer.LOGGER.error("Thread " + Thread.currentThread().getName() + " failed main thread check: " + reason, new Throwable());
+             throw new IllegalStateException(reason);
+@@ -67,6 +70,7 @@ public class TickThread extends Thread {
+     }
+ 
+     public static void ensureTickThread(final ServerLevel world, final int chunkX, final int chunkZ, final String reason) {
++        if (dev.kaiijumc.kaiiju.KaiijuConfig.disableEnsureTickThreadChecks) return; // Kaiiju
+         if (!isTickThreadFor(world, chunkX, chunkZ)) {
+             MinecraftServer.LOGGER.error("Thread " + Thread.currentThread().getName() + " failed main thread check: " + reason, new Throwable());
+             throw new IllegalStateException(reason);
+@@ -74,6 +78,7 @@ public class TickThread extends Thread {
+     }
+ 
+     public static void ensureTickThread(final Entity entity, final String reason) {
++        if (dev.kaiijumc.kaiiju.KaiijuConfig.disableEnsureTickThreadChecks) return; // Kaiiju
+         if (!isTickThreadFor(entity)) {
+             MinecraftServer.LOGGER.error("Thread " + Thread.currentThread().getName() + " failed main thread check: " + reason, new Throwable());
+             throw new IllegalStateException(reason);
+@@ -81,6 +86,7 @@ public class TickThread extends Thread {
+     }
+ 
+     public static void ensureTickThread(final ServerLevel world, final AABB aabb, final String reason) {
++        if (dev.kaiijumc.kaiiju.KaiijuConfig.disableEnsureTickThreadChecks) return; // Kaiiju
+         if (!isTickThreadFor(world, aabb)) {
+             MinecraftServer.LOGGER.error("Thread " + Thread.currentThread().getName() + " failed main thread check: " + reason, new Throwable());
+             throw new IllegalStateException(reason);
+@@ -88,6 +94,7 @@ public class TickThread extends Thread {
+     }
+ 
+     public static void ensureTickThread(final ServerLevel world, final double blockX, final double blockZ, final String reason) {
++        if (dev.kaiijumc.kaiiju.KaiijuConfig.disableEnsureTickThreadChecks) return; // Kaiiju
+         if (!isTickThreadFor(world, blockX, blockZ)) {
+             MinecraftServer.LOGGER.error("Thread " + Thread.currentThread().getName() + " failed main thread check: " + reason, new Throwable());
+             throw new IllegalStateException(reason);

patches/server/0039-Fix-teleportAsync-rotation-API.patch

@@ -0,0 +1,19 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: kugge <sofiane.djerbi38@gmail.com>
+Date: Thu, 22 Jun 2023 20:32:58 +0200
+Subject: [PATCH] Fix teleportAsync rotation API
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+index 76bcfda336e9cfa039d80ea3ccbebbc3d2b13f7f..24617b3994c0f148f1c17928e18aa1e1a784e6f5 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+@@ -1329,7 +1329,7 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
+             boolean success = nmsEntity.teleportAsync(
+                 ((CraftWorld)locationClone.getWorld()).getHandle(),
+                 new net.minecraft.world.phys.Vec3(locationClone.getX(), locationClone.getY(), locationClone.getZ()),
+-                null, null, net.minecraft.world.phys.Vec3.ZERO,
++                locationClone.getYaw(), locationClone.getPitch(), net.minecraft.world.phys.Vec3.ZERO, // Kaiiju - fix teleportAsync() rotation
+                 cause == null ? TeleportCause.UNKNOWN : cause,
+                 Entity.TELEPORT_FLAG_LOAD_CHUNK | Entity.TELEPORT_FLAG_UNMOUNT, // preserve behavior with old API: dismount the entity so it can teleport
+                 (Entity entityTp) -> {

patches/todo/0012-Static-Distance-WIP.patch

@@ -0,0 +1,101 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Sofiane H. Djerbi" <46628754+kugge@users.noreply.github.com>
+Date: Wed, 19 Apr 2023 02:37:04 +0300
+Subject: [PATCH] Static Distance WIP
+
+
+diff --git a/src/main/java/io/papermc/paper/chunk/PlayerChunkLoader.java b/src/main/java/io/papermc/paper/chunk/PlayerChunkLoader.java
+index e77972c4c264100ffdd824bfa2dac58dbbc6d678..cddacd6d5bbe97641bd23f5c067012907d9c5c01 100644
+--- a/src/main/java/io/papermc/paper/chunk/PlayerChunkLoader.java
++++ b/src/main/java/io/papermc/paper/chunk/PlayerChunkLoader.java
+@@ -75,6 +75,17 @@ public final class PlayerChunkLoader {
+         return data.getTargetSendViewDistance();
+     }
+ 
++    // Kaiiju start - Static distance
++    public static int getStaticDistance(final ServerPlayer player) {
++        final ServerLevel level = (ServerLevel)player.level;
++        final PlayerLoaderData data = level.chunkSource.chunkMap.playerChunkManager.getData(player);
++        if (data == null) {
++            return level.chunkSource.chunkMap.playerChunkManager.getTargetStaticDistance();
++        }
++        return data.getTargetSendViewDistance();
++    }
++    // Kaiiju end
++
+     protected final ChunkMap chunkMap;
+     protected final Reference2ObjectLinkedOpenHashMap<ServerPlayer, PlayerLoaderData> playerMap = new Reference2ObjectLinkedOpenHashMap<>(512, 0.7f);
+     protected final ReferenceLinkedOpenHashSet<PlayerLoaderData> chunkSendQueue = new ReferenceLinkedOpenHashSet<>(512, 0.7f);
+@@ -132,6 +143,12 @@ public final class PlayerChunkLoader {
+ 
+     // no throttling is applied below this VD for loading
+ 
++    // Kaiiju start - Static distance
++    public final PlayerAreaMap staticMap;
++    protected int rawStaticDistance = -1;
++    // Kaiiju end
++
++
+     /**
+      * The chunks to be sent to players, provided they're send-ready. Send-ready means the chunk and its 1 radius neighbours are loaded.
+      */
+@@ -190,6 +207,12 @@ public final class PlayerChunkLoader {
+         return this.rawSendDistance == -1 ? this.getLoadDistance() : this.rawSendDistance;
+     }
+ 
++    // Kaiiju start - Static distance
++    public int getTargetStaticDistance() {
++        return this.rawStaticDistance == -1 ? this.getStaticDistance() : this.rawStaticDistance;
++    }
++    // Kaiiju end
++
+     public void setTargetSendDistance(final int distance) {
+         this.setSendDistance(distance);
+     }
+@@ -231,6 +254,16 @@ public final class PlayerChunkLoader {
+         this.rawTickDistance = distance;
+     }
+ 
++    // Kaiiju start - Static distance
++    public void setStaticDistance(final int distance) {
++        this.rawStaticDistance = distance;
++    }
++
++    public int getStaticDistance() {
++        return this.rawStaticDistance;
++    }
++    // Kaiiju end
++
+     /*
+       Players have 3 different types of view distance:
+       1. Sending view distance
+@@ -256,7 +289,13 @@ public final class PlayerChunkLoader {
+ 
+     public PlayerChunkLoader(final ChunkMap chunkMap, final PooledLinkedHashSets<ServerPlayer> pooledHashSets) {
+         this.chunkMap = chunkMap;
++        // Kaiiju start - Static distance
+         this.broadcastMap = new PlayerAreaMap(pooledHashSets,
++                null,
++                (ServerPlayer player, int rangeX, int rangeZ, int currPosX, int currPosZ, int prevPosX, int prevPosZ,
++                 com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> newState) -> {});
++        // Kaiiju end
++        this.staticMap = new PlayerAreaMap(pooledHashSets,
+                 null,
+                 (ServerPlayer player, int rangeX, int rangeZ, int currPosX, int currPosZ, int prevPosX, int prevPosZ,
+                  com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> newState) -> {
+@@ -807,6 +846,7 @@ public final class PlayerChunkLoader {
+         protected int sendViewDistance = -1;
+         protected int loadViewDistance = -1;
+         protected int tickViewDistance = -1;
++        protected int staticViewDistance = -1; // Kaiiju
+ 
+         protected long nextChunkSendTarget;
+ 
+@@ -932,6 +972,7 @@ public final class PlayerChunkLoader {
+             this.loader.loadMap.remove(this.player);
+             this.loader.loadTicketCleanup.remove(this.player);
+             this.loader.tickMap.remove(this.player);
++            this.loader.staticMap.remove(this.player); // Kaiiju
+         }
+ 
+         protected int getClientViewDistance() {