add toolchain resolver

small changes

README.md

@@ -31,7 +31,7 @@ Consider supporting our development by buying Iris on spigot! We work hard to ma
         4. Use `CTRL + X`, then Press `Y`, Then `ENTER`
         5. Quit & Reopen Terminal and verify with `echo $JAVA_HOME`. It should print a directory
 3. If this is your first time building Iris for MC 1.18+ run `gradlew setup` inside the root Iris project folder.
-   Otherwise, skip this step. Grab a coffee, this may take up to 5 minutes depending on your cpu & internet connection.
+   Otherwise, skip this step. Grab a coffee, this may take up to 45 minutes depending on your cpu & internet connection.
 4. Once the project has setup, run `gradlew iris`
 5. The Iris jar will be placed in `Iris/build/Iris-XXX-XXX.jar` Enjoy! Consider supporting us by buying it on spigot!
 
@@ -69,7 +69,6 @@ IrisAccess access=IrisToolbelt.createWorld() // If you like builders...
   .name("myWorld") // The world name
   .dimension("terrifyinghands")
   .seed(69133742) // The world seed
-  .headless(true)  // Headless make gen go fast
   .pregen(PregenTask // Define a pregen job to run
   .builder()
     .center(new Position2(0,0)) // REGION coords (1 region = 32x32 chunks)

build.gradle

@@ -1,5 +1,3 @@
-import java.util.function.Consumer
-
 /*
  * Iris is a World Generator for Minecraft Bukkit Servers
  * Copyright (c) 2021 Arcane Arts (Volmit Software)
@@ -21,12 +19,12 @@ import java.util.function.Consumer
 plugins {
     id 'java'
     id 'java-library'
-    id "com.github.johnrengelman.shadow" version "7.1.2"
+    id "io.github.goooler.shadow" version "8.1.7"
     id "de.undercouch.download" version "5.0.1"
 }
 
-version '3.2.2-1.19.2-1.20.4'
-def specialSourceVersion = '1.11.0' //[NMS]
+version '3.2.6-1.19.2-1.20.4'
+def specialSourceVersion = '1.11.4' //[NMS]
 
 // ADD YOURSELF AS A NEW LINE IF YOU WANT YOUR OWN BUILD TASK GENERATED
 // ======================== WINDOWS =============================
@@ -37,13 +35,14 @@ registerCustomOutputTask('Coco', 'D://mcsm/plugins')
 registerCustomOutputTask('Strange', 'D://Servers/1.17 Test Server/plugins')
 registerCustomOutputTask('Vatuu', 'D://Minecraft/Servers/1.19.4/plugins')
 registerCustomOutputTask('CrazyDev22', 'C://Users/Julian/Desktop/server/plugins')
-registerCustomOutputTask('Pixel', 'C://Users/repix/Iris Dimension Engine/1.20.4 - Iris Development/plugins')
+registerCustomOutputTask('Pixel', 'C://Users/repix/Iris Dimension Engine/1.20.4 - Development/plugins')
 // ========================== UNIX ==============================
 registerCustomOutputTaskUnix('CyberpwnLT', '/Users/danielmills/development/server/plugins')
 registerCustomOutputTaskUnix('PsychoLT', '/Volumes/PRO-G40/Minecraft/MinecraftDevelopment/Server/plugins')
 // ==============================================================
 
 def NMS_BINDINGS = Map.of(
+        "v1_20_R4", "1.20.6-R0.1-SNAPSHOT",
         "v1_20_R3", "1.20.4-R0.1-SNAPSHOT",
         "v1_20_R2", "1.20.2-R0.1-SNAPSHOT",
         "v1_20_R1", "1.20.1-R0.1-SNAPSHOT",
@@ -51,11 +50,15 @@ def NMS_BINDINGS = Map.of(
         "v1_19_R2", "1.19.3-R0.1-SNAPSHOT",
         "v1_19_R1", "1.19.2-R0.1-SNAPSHOT"
 )
+def JVM_VERSION = Map.of(
+        "v1_20_R4", 21,
+)
 NMS_BINDINGS.each {
     def key = it.key
     def value = it.value
     def nms =  value.split("-")[0];
     project(":nms:${key}") {
+        apply plugin: 'java'
         apply plugin: 'java-library'
         apply plugin: 'de.undercouch.download'
 
@@ -64,9 +67,10 @@ NMS_BINDINGS.each {
             compileOnly "org.spigotmc:spigot-api:${value}"
             compileOnly "org.bukkit:craftbukkit:${value}:remapped-mojang" //[NMS]
         }
-        def buildToolsJar = new File(rootProject.buildDir, "tools/BuildTools.jar")
-        def specialSourceJar = new File(rootProject.buildDir, "tools/SpecialSource.jar")
+        def buildToolsJar = new File(rootProject.layout.buildDirectory.asFile.get(), "tools/BuildTools.jar")
+        def specialSourceJar = new File(rootProject.layout.buildDirectory.asFile.get(), "tools/SpecialSource.jar")
 
+        def buildDir = layout.buildDirectory.asFile.get();
         def buildToolsFolder = new File(buildDir, "buildtools")
         def specialSourceFolder = new File(buildDir, "specialsource")
         def buildToolsHint = new File(buildDir, "buildtools/craftbukkit-" + nms + ".jar")
@@ -81,6 +85,22 @@ NMS_BINDINGS.each {
         def m2s = m2.getAbsolutePath();
 
         // ======================== Building Mapped Jars =============================
+        def targetJavaVersion = JVM_VERSION.getOrDefault(key, 17)
+        def javaVersion = JavaVersion.toVersion(targetJavaVersion)
+        def javaLanguageVersion = JavaLanguageVersion.of(targetJavaVersion)
+        project.java.sourceCompatibility = javaVersion
+        project.java.targetCompatibility = javaVersion
+        project.java.toolchain.languageVersion = javaLanguageVersion
+        def launcher = javaToolchains.launcherFor(java.toolchain).get()
+        def javaHome = launcher.executablePath.getAsFile().parentFile.parentFile.getAbsolutePath()
+
+        tasks.withType(JavaCompile).configureEach {
+            options.release.set(targetJavaVersion)
+        }
+
+        tasks.withType(JavaExec).configureEach {
+            javaLauncher.set(launcher)
+        }
 
         ext {
             executeBuildTools = new Runnable() {
@@ -98,6 +118,7 @@ NMS_BINDINGS.each {
                     if (!buildToolsHint.exists()) {
                         buildToolsFolder.mkdirs()
                         project.javaexec {
+                            executable = launcher.executablePath
                             classpath = files(buildToolsJar)
                             workingDir = buildToolsFolder
                             args = [
@@ -107,16 +128,14 @@ NMS_BINDINGS.each {
                                     "craftbukkit",
                                     "--remap"
                             ]
+                            def env = new HashMap(environment)
+                            env.put("JAVA_HOME", javaHome)
+                            environment = env
                         }
                     }
                 }
             }
         }
-        tasks.register("executeBuildTools") {
-            doLast {
-                property("executeBuildTools").run();
-            }
-        }
 
         tasks.build.doLast {
             //Download
@@ -136,6 +155,7 @@ NMS_BINDINGS.each {
 
             //obfuscate
             javaexec {
+                executable = launcher.executablePath
                 workingDir = specialSourceFolder
                 classpath = files(specialSourceJar,
                         new File(m2s + "/org/spigotmc/spigot/" + value + "/spigot-" + value + "-remapped-mojang.jar"))
@@ -150,10 +170,14 @@ NMS_BINDINGS.each {
                         m2s + "/org/spigotmc/minecraft-server/" + value + "/minecraft-server-" + value + "-maps-mojang.txt",
                         "--reverse",
                 ]
+                def env = new HashMap(environment)
+                env.put("JAVA_HOME", javaHome)
+                environment = env
             }
 
             //remap
             javaexec {
+                executable = launcher.executablePath
                 workingDir = specialSourceFolder
                 classpath = files(specialSourceJar,
                         new File(m2s + "/org/spigotmc/spigot/" + value + "/spigot-" + value + "-remapped-obf.jar"))
@@ -167,6 +191,9 @@ NMS_BINDINGS.each {
                         "-m",
                         m2s + "/org/spigotmc/minecraft-server/" + value + "/minecraft-server-" + value + "-maps-spigot.csrg"
                 ]
+                def env = new HashMap(environment)
+                env.put("JAVA_HOME", javaHome)
+                environment = env
             }
             //copy
             copy {
@@ -181,7 +208,10 @@ NMS_BINDINGS.each {
 }
 
 shadowJar {
-    NMS_BINDINGS.each {dependsOn(":nms:${it.key}:build")}
+    NMS_BINDINGS.each {
+        dependsOn(":nms:${it.key}:build")
+        from("${project(":nms:${it.key}").layout.buildDirectory.asFile.get()}/libs/${it.key}.jar")
+    }
 
     //minimize()
     append("plugin.yml")
@@ -193,9 +223,6 @@ shadowJar {
 
 dependencies {
     implementation project(':core')
-    NMS_BINDINGS.each {
-        implementation project(":nms:${it.key}")
-    }
 }
 
 configurations.configureEach {
@@ -237,6 +264,8 @@ allprojects {
         implementation "net.kyori:adventure-text-minimessage:4.13.1"
         implementation 'net.kyori:adventure-platform-bukkit:4.3.2'
         implementation 'net.kyori:adventure-api:4.13.1'
+        //implementation 'org.bytedeco:javacpp:1.5.10'
+        //implementation 'org.bytedeco:cuda-platform:12.3-8.9-1.5.10'
         compileOnly 'io.lumine:Mythic-Dist:5.2.1'
 
         // Dynamically Loaded
@@ -244,7 +273,7 @@ allprojects {
         compileOnly 'it.unimi.dsi:fastutil:8.5.8'
         compileOnly 'com.googlecode.concurrentlinkedhashmap:concurrentlinkedhashmap-lru:1.4.2'
         compileOnly 'org.zeroturnaround:zt-zip:1.14'
-        compileOnly 'com.google.code.gson:gson:2.9.0'
+        compileOnly 'com.google.code.gson:gson:2.10.1'
         compileOnly 'org.ow2.asm:asm:9.2'
         compileOnly 'com.google.guava:guava:33.0.0-jre'
         compileOnly 'bsf:bsf:2.4.0'
@@ -282,8 +311,8 @@ if (JavaVersion.current().toString() != "17") {
 
 task iris(type: Copy) {
     group "iris"
-    from new File(buildDir, "libs/Iris-${version}.jar")
-    into buildDir
+    from new File(layout.buildDirectory.asFile.get(), "libs/Iris-${version}.jar")
+    into layout.buildDirectory.asFile.get()
     dependsOn(build)
 }
 
@@ -306,7 +335,9 @@ NMS_BINDINGS.keySet().forEach {
     tasks.register("setup-${nms}") {
         group "iris"
         dependsOn(":nms:${nms}:clean")
-        dependsOn(":nms:${nms}:executeBuildTools")
+        doLast {
+            project(":nms:${nms}").property("executeBuildTools").run();
+        }
     }
 }
 

core/build.gradle

@@ -19,7 +19,7 @@
 plugins {
     id 'java'
     id 'java-library'
-    id "io.freefair.lombok" version "6.3.0"
+    id "io.freefair.lombok" version "8.6"
 }
 
 def apiVersion = '1.19'
@@ -35,6 +35,7 @@ compileJava {
 
 repositories {
     maven { url 'https://nexus.phoenixdevt.fr/repository/maven-public/'}
+    maven { url 'https://repo.auxilor.io/repository/maven-public/' }
 }
 
 /**
@@ -66,6 +67,7 @@ dependencies {
     compileOnly 'com.github.PlaceholderAPI:placeholderapi:2.11.3'
     compileOnly 'com.github.Ssomar-Developement:SCore:4.23.10.8'
     compileOnly 'net.Indyuce:MMOItems-API:6.9.5-SNAPSHOT'
+    compileOnly 'com.willfp:EcoItems:5.44.0'
     //implementation files('libs/CustomItems.jar')
 }
 

core/src/main/java/com/volmit/iris/Iris.java

@@ -739,7 +739,7 @@ public class Iris extends VolmitPlugin implements Listener {
             service(StudioSVC.class).installIntoWorld(getSender(), dim.getLoadKey(), w.worldFolder());
         }
 
-        return new BukkitChunkGenerator(w, false, ff, dim.getLoadKey());
+        return new BukkitChunkGenerator(w, false, ff, dim.getLoadKey(), false);
     }
 
     public void splash() {
@@ -806,9 +806,6 @@ public class Iris extends VolmitPlugin implements Listener {
         } else {
             splash = splashstable;
         }
-        OperatingSystemMXBean osBean = ManagementFactory.getOperatingSystemMXBean();
-        String osArch = osBean.getArch();
-        String osName = osBean.getName();
 
         if (!passedserversoftware) {
             Iris.info("Server type & version: " + C.RED + Bukkit.getVersion());
@@ -821,37 +818,11 @@ public class Iris extends VolmitPlugin implements Listener {
                 Iris.info(C.YELLOW + "Purpur is recommended to use with iris.");
             }
         }
-        Iris.info("Server OS: " + osName + " (" + osArch + ")");
-
-        try {
-            if (warningmode){
-                Iris.info("Server Cpu: " + C.GOLD + getCPUModel());
-            } else {
-            if(unstablemode){
-                Iris.info("Server Cpu: " + C.DARK_RED + getCPUModel());
-            } else {
-                if (getCPUModel().contains("Intel")) {
-                    Iris.info("Server Cpu: " + C.BLUE + getCPUModel());
-                }
-                if (getCPUModel().contains("Ryzen")) {
-                    Iris.info("Server Cpu: " + C.RED + getCPUModel());
-                }
-                if (!getCPUModel().contains("Ryzen") && !getCPUModel().contains("Intel")) {
-                    Iris.info("Server Cpu: " + C.GRAY + getCPUModel());
-                }
-            }
-            }
-        } catch (Exception e){
-            Iris.info("Server Cpu: " + C.DARK_RED + "Failed");
-        }
-
-        Iris.info("Process Threads: " +  Runtime.getRuntime().availableProcessors());
-        Iris.info("Process Memory: " + getHardware.getProcessMemory() + " MB");
-        Iris.info("Free DiskSpace: " + Form.ofSize(freeSpace.getFreeSpace(), 1024));
         if (getHardware.getProcessMemory() < 5999) {
             Iris.warn("6GB+ Ram is recommended");
+            Iris.warn("Process Memory: " + getHardware.getProcessMemory() + " MB");
         }
-        Iris.info("Bukkit version: " + Bukkit.getBukkitVersion());
+        Iris.info("Bukkit distro: " + Bukkit.getName());
         Iris.info("Custom Biomes: " + INMS.get().countCustomBiomes());
         setupChecks();
         printPacks();

core/src/main/java/com/volmit/iris/core/IrisSettings.java

@@ -177,7 +177,6 @@ public class IrisSettings {
     public static class IrisSettingsGenerator {
         public String defaultWorldType = "overworld";
         public int maxBiomeChildDepth = 4;
-       // public boolean forceConvertTo320Height = false;
         public boolean preventLeafDecay = true;
     }
 

core/src/main/java/com/volmit/iris/core/ServerConfigurator.java

@@ -21,6 +21,8 @@ package com.volmit.iris.core;
 import com.volmit.iris.Iris;
 import com.volmit.iris.core.loader.IrisData;
 import com.volmit.iris.core.nms.INMS;
+import com.volmit.iris.core.nms.datapack.DataVersion;
+import com.volmit.iris.core.nms.datapack.IDataFixer;
 import com.volmit.iris.engine.object.IrisBiome;
 import com.volmit.iris.engine.object.IrisBiomeCustom;
 import com.volmit.iris.engine.object.IrisDimension;
@@ -91,8 +93,11 @@ public class ServerConfigurator {
         return worlds;
     }
 
-
     public static void installDataPacks(boolean fullInstall) {
+        installDataPacks(DataVersion.getDefault(), fullInstall);
+    }
+
+    public static void installDataPacks(IDataFixer fixer, boolean fullInstall) {
         Iris.info("Checking Data Packs...");
         File packs = new File("plugins/Iris/packs");
         double ultimateMaxHeight = 0;
@@ -137,7 +142,7 @@ public class ServerConfigurator {
 
                                 Iris.verbose("  Checking Dimension " + dim.getLoadFile().getPath());
                                 for (File dpack : getDatapacksFolder()) {
-                                    dim.installDataPack(() -> data, dpack, ultimateMaxHeight, ultimateMinHeight);
+                                    dim.installDataPack(fixer, () -> data, dpack, ultimateMaxHeight, ultimateMinHeight);
                                 }
                             }
                         }

core/src/main/java/com/volmit/iris/core/commands/CommandDeveloper.java

@@ -19,9 +19,12 @@
 package com.volmit.iris.core.commands;
 
 import com.volmit.iris.Iris;
+import com.volmit.iris.core.ServerConfigurator;
 import com.volmit.iris.core.loader.IrisData;
 import com.volmit.iris.core.nms.INMS;
+import com.volmit.iris.core.nms.datapack.DataVersion;
 import com.volmit.iris.core.nms.v1X.NMSBinding1X;
+import com.volmit.iris.core.pregenerator.ChunkUpdater;
 import com.volmit.iris.core.service.IrisEngineSVC;
 import com.volmit.iris.core.tools.IrisPackBenchmarking;
 import com.volmit.iris.core.tools.IrisToolbelt;
@@ -40,7 +43,10 @@ import com.volmit.iris.util.format.C;
 import com.volmit.iris.util.format.Form;
 import com.volmit.iris.util.io.IO;
 import com.volmit.iris.util.mantle.TectonicPlate;
+import com.volmit.iris.util.math.Spiraler;
 import com.volmit.iris.util.math.Vector3d;
+import com.volmit.iris.util.nbt.mca.MCAFile;
+import com.volmit.iris.util.nbt.mca.MCAUtil;
 import com.volmit.iris.util.plugin.VolmitSender;
 import io.lumine.mythic.bukkit.adapters.BukkitEntity;
 import net.jpountz.lz4.LZ4BlockInputStream;
@@ -61,6 +67,7 @@ import java.net.NetworkInterface;
 import java.util.*;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
+import java.util.concurrent.atomic.AtomicInteger;
 import java.util.zip.GZIPInputStream;
 import java.util.zip.GZIPOutputStream;
 
@@ -150,9 +157,37 @@ public class CommandDeveloper implements DecreeExecutor {
 
     }
 
+    @Decree(description = "Upgrade to another Minecraft version")
+    public void upgrade(
+            @Param(description = "The version to upgrade to", defaultValue = "latest") DataVersion version) {
+        sender().sendMessage(C.GREEN + "Upgrading to " + version.getVersion() + "...");
+        ServerConfigurator.installDataPacks(version.get(), false);
+        sender().sendMessage(C.GREEN + "Done upgrading! You can now update your server version to " + version.getVersion());
+    }
+
+    @Decree(description = "Test")
+    public void updater(
+            @Param(description = "Updater for chunks")
+            World world
+    ) {
+        Iris.info("test");
+        ChunkUpdater updater = new ChunkUpdater(world);
+        updater.start();
+
+
+    }
+
     @Decree(description = "test")
-    public void test() throws NoSuchFieldException, IllegalAccessException {
-        IrisEngineSVC.instance.engineStatus();
+    public void mca (
+            @Param(description = "String") String world) {
+        try {
+            File[] McaFiles = new File(world, "region").listFiles((dir, name) -> name.endsWith(".mca"));
+            for (File mca : McaFiles) {
+                MCAFile MCARegion = MCAUtil.read(mca);
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
 
     }
 

core/src/main/java/com/volmit/iris/core/commands/CommandIris.java

@@ -20,7 +20,10 @@ package com.volmit.iris.core.commands;
 
 import com.volmit.iris.Iris;
 import com.volmit.iris.core.IrisSettings;
+import com.volmit.iris.core.ServerConfigurator;
 import com.volmit.iris.core.loader.IrisData;
+import com.volmit.iris.core.nms.datapack.DataVersion;
+import com.volmit.iris.core.pregenerator.ChunkUpdater;
 import com.volmit.iris.core.service.StudioSVC;
 import com.volmit.iris.core.tools.IrisBenchmarking;
 import com.volmit.iris.core.tools.IrisToolbelt;
@@ -30,12 +33,14 @@ import com.volmit.iris.core.safeguard.UtilsSFG;
 import com.volmit.iris.engine.object.IrisWorld;
 import com.volmit.iris.engine.platform.BukkitChunkGenerator;
 import com.volmit.iris.engine.platform.DummyChunkGenerator;
+import com.volmit.iris.util.collection.KList;
 import com.volmit.iris.util.decree.DecreeExecutor;
 import com.volmit.iris.util.decree.DecreeOrigin;
 import com.volmit.iris.util.decree.annotations.Decree;
 import com.volmit.iris.util.decree.annotations.Param;
 import com.volmit.iris.util.decree.specialhandlers.NullablePlayerHandler;
 import com.volmit.iris.util.format.C;
+import com.volmit.iris.util.format.Form;
 import com.volmit.iris.util.plugin.VolmitSender;
 import com.volmit.iris.util.scheduling.J;
 import lombok.Getter;
@@ -75,9 +80,9 @@ public class CommandIris implements DecreeExecutor {
     private CommandWhat what;
     private CommandEdit edit;
     private CommandFind find;
+    private CommandSupport support;
     private CommandDeveloper developer;
     public static boolean worldCreation = false;
-    String WorldToLoad;
     String WorldEngine;
     String worldNameToCheck = "YourWorldName";
     VolmitSender sender = Iris.getSender();
@@ -89,7 +94,9 @@ public class CommandIris implements DecreeExecutor {
             @Param(aliases = "dimension", description = "The dimension type to create the world with", defaultValue = "default")
             IrisDimension type,
             @Param(description = "The seed to generate the world with", defaultValue = "1337")
-            long seed
+            long seed,
+            @Param(description = "If it should convert the dimension to match the vanilla height system.", defaultValue = "false")
+            boolean vanillaheight
     ) {
         if(sender() instanceof Player) {
             if (incompatibilities.get("Multiverse-Core")) {
@@ -133,6 +140,7 @@ public class CommandIris implements DecreeExecutor {
                     .seed(seed)
                     .sender(sender())
                     .studio(false)
+                    .smartVanillaHeight(vanillaheight)
                     .create();
         } catch (Throwable e) {
             sender().sendMessage(C.RED + "Exception raised during creation. See the console for more details.");
@@ -216,41 +224,41 @@ public class CommandIris implements DecreeExecutor {
         Iris.service(StudioSVC.class).open(sender(), 1337, "overworld");
     }
 
-    @Decree(description = "Check if iris has access to that specific world")
-    public void hasAccess(
-            @Param(description = "The world to access", aliases = {"world"})
-            World world
-    ) {
-        Engine engine = IrisToolbelt.access(world).getEngine();
-        if (engine != null) {
-            sender().sendMessage("Access granted successfully.");
-        } else {
-            sender().sendMessage(C.RED + "Failed to grant access.");
-        }
-    }
+    @Decree(description = "Check access of all worlds.", aliases = {"accesslist"})
+    public void worlds() {
+        KList<World> IrisWorlds = new KList<>();
+        KList<World> BukkitWorlds = new KList<>();
 
-    @Decree(description = "All Iris Worlds on the server.", aliases = {"worlds"})
-    public void irisworlds() {
-        List<World> IrisWorlds = new ArrayList<>();
-        for (World world : Bukkit.getWorlds()) {
+        for (World w : Bukkit.getServer().getWorlds()) {
             try {
-                if (IrisToolbelt.access(world).getEngine() != null) {
-                    IrisWorlds.add(world);
+                Engine engine = IrisToolbelt.access(w).getEngine();
+                if (engine != null) {
+                    IrisWorlds.add(w);
                 }
             } catch (Exception e) {
-                // no
+                BukkitWorlds.add(w);
             }
         }
+
         if (sender().isPlayer()) {
-            sender.sendMessage(C.IRIS + "Iris Worlds:");
-            for (World world : IrisWorlds) {
-                sender.sendMessage(C.GREEN + "- " + world.getName());
+            sender().sendMessage(C.BLUE + "Iris Worlds: ");
+            for (World IrisWorld : IrisWorlds.copy()) {
+                sender().sendMessage(C.IRIS + "- " +IrisWorld.getName());
+            }
+            sender().sendMessage(C.GOLD + "Bukkit Worlds: ");
+            for (World BukkitWorld : BukkitWorlds.copy()) {
+                sender().sendMessage(C.GRAY + "- " +BukkitWorld.getName());
             }
         } else {
-            Iris.info(C.IRIS + "Iris Worlds:");
-            for (World world : IrisWorlds) {
-                sender.sendMessage(C.GREEN + "- " + world.getName());
+            Iris.info(C.BLUE + "Iris Worlds: ");
+            for (World IrisWorld : IrisWorlds.copy()) {
+                Iris.info(C.IRIS + "- " +IrisWorld.getName());
             }
+            Iris.info(C.GOLD + "Bukkit Worlds: ");
+            for (World BukkitWorld : BukkitWorlds.copy()) {
+                Iris.info(C.GRAY + "- " +BukkitWorld.getName());
+            }
+            
         }
     }
 
@@ -314,6 +322,24 @@ public class CommandIris implements DecreeExecutor {
         return dir.delete();
     }
 
+    @Decree(description = "Updates all chunk in the specified world")
+    public void updater(
+            @Param(description = "World to update chunks at")
+            World world
+    ) {
+        if (!IrisToolbelt.isIrisWorld(world)) {
+            sender().sendMessage(C.GOLD + "This is not an Iris world");
+            return;
+        }
+        ChunkUpdater updater = new ChunkUpdater(world);
+        if (sender().isPlayer()) {
+            sender().sendMessage(C.GREEN + "Updating " + world.getName() + " Total chunks: " + Form.f(updater.getChunks()));
+        } else {
+            Iris.info(C.GREEN + "Updating " + world.getName() + " Total chunks: " + Form.f(updater.getChunks()));
+        }
+        updater.start();
+    }
+
     @Decree(description = "Set aura spins")
     public void aura(
             @Param(description = "The h color value", defaultValue = "-20")
@@ -473,7 +499,7 @@ public class CommandIris implements DecreeExecutor {
             sender().sendMessage(C.YELLOW + world + " Doesnt exist on the server.");
             return;
         }
-        WorldToLoad = world;
+
         File BUKKIT_YML = new File("bukkit.yml");
         String pathtodim = world + File.separator +"iris"+File.separator +"pack"+File.separator +"dimensions"+File.separator;
         File directory = new File(Bukkit.getWorldContainer(), pathtodim);
@@ -509,9 +535,10 @@ public class CommandIris implements DecreeExecutor {
             } catch (IOException e) {
                 Iris.error("Failed to update bukkit.yml!");
                 e.printStackTrace();
+                return;
             }
         }
-        checkForBukkitWorlds();
+        checkForBukkitWorlds(world);
         sender().sendMessage(C.GREEN + world + " loaded successfully.");
     }
     @Decree(description = "Evacuate an iris world", origin = DecreeOrigin.PLAYER, sync = true)
@@ -532,7 +559,7 @@ public class CommandIris implements DecreeExecutor {
         File worldDirectory = new File(worldContainer, worldName);
         return worldDirectory.exists() && worldDirectory.isDirectory();
     }
-    private void checkForBukkitWorlds() {
+    private void checkForBukkitWorlds(String world) {
         FileConfiguration fc = new YamlConfiguration();
         try {
             fc.load(new File("bukkit.yml"));
@@ -541,9 +568,9 @@ public class CommandIris implements DecreeExecutor {
                 return;
             }
 
-            List<String> worldsToLoad = Collections.singletonList(WorldToLoad);
+            List<String> worldsToLoad = Collections.singletonList(world);
 
-            for (String s : section.getKeys(false)) {
+             for (String s : section.getKeys(false)) {
                 if (!worldsToLoad.contains(s)) {
                     continue;
                 }
@@ -622,6 +649,6 @@ public class CommandIris implements DecreeExecutor {
             ff.mkdirs();
             service(StudioSVC.class).installIntoWorld(sender, dim.getLoadKey(), ff.getParentFile());
         }
-        return new BukkitChunkGenerator(w, false, ff, dim.getLoadKey());
+        return new BukkitChunkGenerator(w, false, ff, dim.getLoadKey(), false);
     }
 }

core/src/main/java/com/volmit/iris/core/commands/CommandJigsaw.java

@@ -21,6 +21,7 @@ package com.volmit.iris.core.commands;
 import com.volmit.iris.Iris;
 import com.volmit.iris.core.edit.JigsawEditor;
 import com.volmit.iris.core.loader.IrisData;
+import com.volmit.iris.engine.framework.placer.WorldObjectPlacer;
 import com.volmit.iris.engine.jigsaw.PlannedStructure;
 import com.volmit.iris.engine.object.IrisJigsawPiece;
 import com.volmit.iris.engine.object.IrisJigsawStructure;
@@ -34,6 +35,7 @@ import com.volmit.iris.util.decree.specialhandlers.ObjectHandler;
 import com.volmit.iris.util.format.C;
 import com.volmit.iris.util.format.Form;
 import com.volmit.iris.util.math.RNG;
+import com.volmit.iris.util.plugin.VolmitSender;
 import com.volmit.iris.util.scheduling.PrecisionStopwatch;
 
 import java.io.File;
@@ -55,9 +57,16 @@ public class CommandJigsaw implements DecreeExecutor {
             IrisJigsawStructure structure
     ) {
         PrecisionStopwatch p = PrecisionStopwatch.start();
-        PlannedStructure ps = new PlannedStructure(structure, new IrisPosition(player().getLocation()), new RNG());
-        sender().sendMessage(C.GREEN + "Generated " + ps.getPieces().size() + " pieces in " + Form.duration(p.getMilliseconds(), 2));
-        ps.place(world());
+        try {
+            var world = world();
+            WorldObjectPlacer placer = new WorldObjectPlacer(world);
+            PlannedStructure ps = new PlannedStructure(structure, new IrisPosition(player().getLocation().add(0, world.getMinHeight(), 0)), new RNG());
+            VolmitSender sender = sender();
+            sender.sendMessage(C.GREEN + "Generated " + ps.getPieces().size() + " pieces in " + Form.duration(p.getMilliseconds(), 2));
+            ps.place(placer, failed -> sender.sendMessage(failed ? C.GREEN + "Placed the structure!" : C.RED + "Failed to place the structure!"));
+        } catch (IllegalArgumentException e) {
+            sender().sendMessage(C.RED + "Failed to place the structure: " + e.getMessage());
+        }
     }
 
     @Decree(description = "Create a jigsaw piece")

core/src/main/java/com/volmit/iris/core/commands/CommandObject.java

@@ -35,6 +35,7 @@ import com.volmit.iris.util.decree.specialhandlers.ObjectHandler;
 import com.volmit.iris.util.format.C;
 import com.volmit.iris.util.math.Direction;
 import com.volmit.iris.util.math.RNG;
+import com.volmit.iris.util.misc.E;
 import com.volmit.iris.util.scheduling.Queue;
 import org.bukkit.*;
 import org.bukkit.block.Block;
@@ -52,7 +53,7 @@ import java.util.*;
 @Decree(name = "object", aliases = "o", origin = DecreeOrigin.PLAYER, studio = true, description = "Iris object manipulation")
 public class CommandObject implements DecreeExecutor {
 
-    private static final Set<Material> skipBlocks = Set.of(Material.GRASS, Material.SNOW, Material.VINE, Material.TORCH, Material.DEAD_BUSH,
+    private static final Set<Material> skipBlocks = Set.of(E.getOrDefault(Material.class, "GRASS", "SHORT_GRASS"), Material.SNOW, Material.VINE, Material.TORCH, Material.DEAD_BUSH,
             Material.POPPY, Material.DANDELION);
 
     public static IObjectPlacer createPlacer(World world, Map<Block, BlockData> futureBlockChanges) {
@@ -197,6 +198,20 @@ public class CommandObject implements DecreeExecutor {
         }
     }
 
+    @Decree(description = "Shrink an object to its minimum size")
+    public void shrink(@Param(description = "The object to shrink", customHandler = ObjectHandler.class) String object) {
+        IrisObject o = IrisData.loadAnyObject(object);
+        sender().sendMessage("Current Object Size: " + o.getW() + " * " + o.getH() + " * " + o.getD());
+        o.shrinkwrap();
+        sender().sendMessage("New Object Size: " + o.getW() + " * " + o.getH() + " * " + o.getD());
+        try {
+            o.write(o.getLoadFile());
+        } catch (IOException e) {
+            sender().sendMessage("Failed to save object " + o.getLoadFile() + ": " + e.getMessage());
+            e.printStackTrace();
+        }
+    }
+
     @Decree(description = "Get a powder that reveals objects", studio = true, aliases = "d")
     public void dust() {
         player().getInventory().addItem(WandSVC.createDust());

core/src/main/java/com/volmit/iris/core/commands/CommandStudio.java

@@ -74,6 +74,7 @@ import java.nio.file.Files;
 import java.nio.file.attribute.FileTime;
 import java.time.Duration;
 import java.time.temporal.ChronoUnit;
+import java.util.Arrays;
 import java.util.Date;
 import java.util.Objects;
 import java.util.concurrent.ExecutionException;
@@ -85,7 +86,7 @@ import java.util.function.Supplier;
 public class CommandStudio implements DecreeExecutor {
     private CommandFind find;
     private CommandEdit edit;
-    private CommandDeepSearch deepSearch;
+    //private CommandDeepSearch deepSearch;
 
     public static String hrf(Duration duration) {
         return duration.toString().substring(2).replaceAll("(\\d[HMS])(?!$)", "$1 ").toLowerCase();
@@ -332,6 +333,63 @@ public class CommandStudio implements DecreeExecutor {
         player().openInventory(inv);
     }
 
+
+    @Decree(description = "Get all structures in a radius of chunks", aliases = "dist", origin = DecreeOrigin.PLAYER)
+    public void distances(@Param(description = "The radius") int radius) {
+        var engine = engine();
+        if (engine == null) {
+            sender().sendMessage(C.RED + "Only works in an Iris world!");
+            return;
+        }
+        var sender = sender();
+        int d = radius*2;
+        KMap<String, KList<Position2>> data = new KMap<>();
+        var multiBurst = new MultiBurst("Distance Sampler", Thread.MIN_PRIORITY);
+        var executor = multiBurst.burst(radius * radius);
+
+        sender.sendMessage(C.GRAY + "Generating data...");
+        var loc = player().getLocation();
+        new Spiraler(d, d, (x, z) -> executor.queue(() -> {
+            var struct = engine.getStructureAt(x, z);
+            if (struct != null) {
+                data.computeIfAbsent(struct.getLoadKey(), (k) -> new KList<>()).add(new Position2(x, z));
+            }
+        })).setOffset(loc.getBlockX(), loc.getBlockZ()).drain();
+
+        executor.complete();
+        multiBurst.close();
+        for (var key : data.keySet()) {
+            var list = data.get(key);
+            KList<Long> distances = new KList<>(list.size() - 1);
+            for (int i = 0; i < list.size(); i++) {
+                var pos = list.get(i);
+                double dist = Integer.MAX_VALUE;
+                for (var p : list) {
+                    if (p.equals(pos)) continue;
+                    dist = Math.min(dist, Math.sqrt(Math.pow(pos.getX() - p.getX(), 2) + Math.pow(pos.getZ() - p.getZ(), 2)));
+                }
+                if (dist == Integer.MAX_VALUE) continue;
+                distances.add(Math.round(dist * 16));
+            }
+            long[] array = new long[distances.size()];
+            for (int i = 0; i < distances.size(); i++) {
+                array[i] = distances.get(i);
+            }
+            Arrays.sort(array);
+            long min = array.length > 0 ? array[0] : 0;
+            long max = array.length > 0 ? array[array.length - 1] : 0;
+            long sum = Arrays.stream(array).sum();
+            long avg = array.length > 0 ? Math.round(sum / (double) array.length) : 0;
+            String msg = "%s: %s => min: %s/max: %s -> avg: %s".formatted(key, list.size(), min, max, avg);
+            sender.sendMessage(msg);
+        }
+        if (data.isEmpty()) {
+            sender.sendMessage(C.RED + "No data found!");
+        } else {
+            sender.sendMessage(C.GREEN + "Done!");
+        }
+    }
+
     @Decree(description = "Render a world map (External GUI)", aliases = "render")
     public void map(
             @Param(name = "world", description = "The world to open the generator for", contextual = true)

core/src/main/java/com/volmit/iris/core/commands/CommandSupport.java

@@ -0,0 +1,82 @@
+/*
+ * Iris is a World Generator for Minecraft Bukkit Servers
+ * Copyright (c) 2022 Arcane Arts (Volmit Software)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.volmit.iris.core.commands;
+
+import com.volmit.iris.Iris;
+import com.volmit.iris.core.loader.IrisData;
+import com.volmit.iris.core.pregenerator.ChunkUpdater;
+import com.volmit.iris.core.service.IrisEngineSVC;
+import com.volmit.iris.core.tools.IrisPackBenchmarking;
+import com.volmit.iris.core.tools.IrisToolbelt;
+import com.volmit.iris.engine.framework.Engine;
+import com.volmit.iris.engine.object.IrisDimension;
+import com.volmit.iris.util.collection.KList;
+import com.volmit.iris.util.decree.DecreeExecutor;
+import com.volmit.iris.util.decree.DecreeOrigin;
+import com.volmit.iris.util.decree.annotations.Decree;
+import com.volmit.iris.util.decree.annotations.Param;
+import com.volmit.iris.util.format.C;
+import com.volmit.iris.util.format.Form;
+import com.volmit.iris.util.io.IO;
+import com.volmit.iris.util.mantle.TectonicPlate;
+import com.volmit.iris.util.misc.Hastebin;
+import com.volmit.iris.util.misc.Platform;
+import com.volmit.iris.util.misc.getHardware;
+import com.volmit.iris.util.nbt.mca.MCAFile;
+import com.volmit.iris.util.nbt.mca.MCAUtil;
+import com.volmit.iris.util.plugin.VolmitSender;
+import net.jpountz.lz4.LZ4BlockInputStream;
+import net.jpountz.lz4.LZ4BlockOutputStream;
+import net.jpountz.lz4.LZ4FrameInputStream;
+import net.jpountz.lz4.LZ4FrameOutputStream;
+import org.apache.commons.lang.RandomStringUtils;
+import org.bukkit.Bukkit;
+import org.bukkit.Chunk;
+import org.bukkit.World;
+import oshi.SystemInfo;
+
+import java.io.*;
+import java.net.InetAddress;
+import java.net.NetworkInterface;
+import java.util.*;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.zip.GZIPInputStream;
+import java.util.zip.GZIPOutputStream;
+
+@Decree(name = "Support", origin = DecreeOrigin.BOTH, description = "Iris World Manager", aliases = {"support"})
+public class CommandSupport implements DecreeExecutor {
+
+    @Decree(description = "report")
+    public void report() {
+        try {
+            if (sender().isPlayer()) sender().sendMessage(C.GOLD + "Creating report..");
+            if (!sender().isPlayer()) Iris.info(C.GOLD + "Creating report..");
+            Hastebin.enviornment(sender());
+
+        } catch (Exception e) {
+            Iris.info(C.RED + "Something went wrong: ");
+            e.printStackTrace();
+        }
+    }
+
+
+}
+
+

core/src/main/java/com/volmit/iris/core/commands/CommandUpdater.java

@@ -0,0 +1,107 @@
+/*
+ * Iris is a World Generator for Minecraft Bukkit Servers
+ * Copyright (c) 2022 Arcane Arts (Volmit Software)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.volmit.iris.core.commands;
+
+import org.bukkit.World;
+
+import com.volmit.iris.Iris;
+import com.volmit.iris.core.pregenerator.ChunkUpdater;
+import com.volmit.iris.core.tools.IrisToolbelt;
+import com.volmit.iris.util.decree.DecreeExecutor;
+import com.volmit.iris.util.decree.DecreeOrigin;
+import com.volmit.iris.util.decree.annotations.Decree;
+import com.volmit.iris.util.decree.annotations.Param;
+import com.volmit.iris.util.format.C;
+import com.volmit.iris.util.format.Form;
+
+@Decree(name = "Updater", origin = DecreeOrigin.BOTH, description = "Iris World Updater")
+public class CommandUpdater implements DecreeExecutor {
+    private ChunkUpdater chunkUpdater;
+
+    @Decree(description = "Updates all chunk in the specified world")
+    public void start(
+            @Param(description = "World to update chunks at")
+            World world
+    ) {
+        if (!IrisToolbelt.isIrisWorld(world)) {
+            sender().sendMessage(C.GOLD + "This is not an Iris world");
+            return;
+        }
+        chunkUpdater = new ChunkUpdater(world);
+        if (sender().isPlayer()) {
+            sender().sendMessage(C.GREEN + "Updating " + world.getName()  + C.GRAY + " Total chunks: " + Form.f(chunkUpdater.getChunks()));
+        } else {
+            Iris.info(C.GREEN + "Updating " + world.getName() + C.GRAY + " Total chunks: " + Form.f(chunkUpdater.getChunks()));
+        }
+        chunkUpdater.start();
+    }
+
+    @Decree(description = "Pause the updater")
+    public void pause(
+            @Param(description = "World to pause the Updater at")
+            World world
+    ) {
+        if (!IrisToolbelt.isIrisWorld(world)) {
+            sender().sendMessage(C.GOLD + "This is not an Iris world");
+            return;
+        }
+        if (chunkUpdater == null) {
+            sender().sendMessage(C.GOLD + "You cant pause something that doesnt exist?");
+            return;
+        }
+        boolean status = chunkUpdater.pause();
+        if (sender().isPlayer()) {
+            if (status) {
+                sender().sendMessage(C.IRIS + "Paused task for: " + C.GRAY + world.getName());
+            } else {
+                sender().sendMessage(C.IRIS + "Unpause task for: " + C.GRAY + world.getName());
+            }
+        } else {
+            if (status) {
+                Iris.info(C.IRIS + "Paused task for: " + C.GRAY + world.getName());
+            } else {
+                Iris.info(C.IRIS + "Unpause task for: " + C.GRAY + world.getName());
+            }
+        }
+    }
+
+    @Decree(description = "Stops the updater")
+    public void stop(
+            @Param(description = "World to stop the Updater at")
+            World world
+    ) {
+        if (!IrisToolbelt.isIrisWorld(world)) {
+            sender().sendMessage(C.GOLD + "This is not an Iris world");
+            return;
+        }
+        if (chunkUpdater == null) {
+            sender().sendMessage(C.GOLD + "You cant stop something that doesnt exist?");
+            return;
+        }
+        if (sender().isPlayer()) {
+            sender().sendMessage("Stopping Updater for: " + C.GRAY + world.getName());
+        } else {
+            Iris.info("Stopping Updater for: " + C.GRAY + world.getName());
+        }
+        chunkUpdater.stop();
+    }
+
+}
+
+

core/src/main/java/com/volmit/iris/core/gui/components/IrisRenderer.java

@@ -55,10 +55,10 @@ public class IrisRenderer {
                 IrisBiome b = renderer.getBiome((int) Math.round(x), renderer.getMaxHeight() - 1, (int) Math.round(z));
                 IrisBiomeGeneratorLink g = b.getGenerators().get(0);
                 Color c;
-                if (g.getMax() <= 0) {
+                if (g.getMax(renderer) <= 0) {
                     // Max is below water level, so it is most likely an ocean biome
                     c = Color.BLUE;
-                } else if (g.getMin() < 0) {
+                } else if (g.getMin(renderer) < 0) {
                     // Min is below water level, but max is not, so it is most likely a shore biome
                     c = Color.YELLOW;
                 } else {

core/src/main/java/com/volmit/iris/core/link/EcoItemsDataProvider.java

@@ -0,0 +1,71 @@
+package com.volmit.iris.core.link;
+
+import com.volmit.iris.Iris;
+import com.volmit.iris.util.collection.KList;
+import com.volmit.iris.util.reflect.WrappedField;
+import com.willfp.ecoitems.items.EcoItem;
+import com.willfp.ecoitems.items.EcoItems;
+import org.bukkit.NamespacedKey;
+import org.bukkit.block.data.BlockData;
+import org.bukkit.inventory.ItemStack;
+
+import java.util.MissingResourceException;
+
+public class EcoItemsDataProvider extends ExternalDataProvider {
+    private WrappedField<EcoItem, ItemStack> itemStack;
+    private WrappedField<EcoItem, NamespacedKey> id;
+
+    public EcoItemsDataProvider() {
+        super("EcoItems");
+    }
+
+    @Override
+    public void init() {
+        Iris.info("Setting up EcoItems Link...");
+        itemStack = new WrappedField<>(EcoItem.class, "_itemStack");
+        if (this.itemStack.hasFailed()) {
+            Iris.error("Failed to set up EcoItems Link: Unable to fetch ItemStack field!");
+        }
+        id = new WrappedField<>(EcoItem.class, "id");
+        if (this.id.hasFailed()) {
+            Iris.error("Failed to set up EcoItems Link: Unable to fetch id field!");
+        }
+    }
+
+    @Override
+    public BlockData getBlockData(Identifier blockId) throws MissingResourceException {
+        throw new MissingResourceException("Failed to find BlockData!", blockId.namespace(), blockId.key());
+    }
+
+    @Override
+    public ItemStack getItemStack(Identifier itemId) throws MissingResourceException {
+        EcoItem item = EcoItems.INSTANCE.getByID(itemId.key());
+        if (item == null) throw new MissingResourceException("Failed to find Item!", itemId.namespace(), itemId.key());
+        return itemStack.get(item).clone();
+    }
+
+    @Override
+    public Identifier[] getBlockTypes() {
+        return new Identifier[0];
+    }
+
+    @Override
+    public Identifier[] getItemTypes() {
+        KList<Identifier> names = new KList<>();
+        for (EcoItem item : EcoItems.INSTANCE.values()) {
+            try {
+                Identifier key = Identifier.fromNamespacedKey(id.get(item));
+                if (getItemStack(key) != null)
+                    names.add(key);
+            } catch (MissingResourceException ignored) {
+            }
+        }
+
+        return names.toArray(new Identifier[0]);
+    }
+
+    @Override
+    public boolean isValidProvider(Identifier id, boolean isItem) {
+        return id.namespace().equalsIgnoreCase("ecoitems") && isItem;
+    }
+}

core/src/main/java/com/volmit/iris/core/link/HMCLeavesDataProvider.java

@@ -1,6 +1,7 @@
 package com.volmit.iris.core.link;
 
 import com.volmit.iris.Iris;
+import com.volmit.iris.core.IrisSettings;
 import com.volmit.iris.engine.framework.Engine;
 import com.volmit.iris.util.collection.KList;
 import com.volmit.iris.util.data.IrisBlockData;
@@ -57,7 +58,7 @@ public class HMCLeavesDataProvider extends ExternalDataProvider {
 		if (material == null)
 			throw new MissingResourceException("Failed to find BlockData!", blockId.namespace(), blockId.key());
 		BlockData blockData = Bukkit.createBlockData(material);
-		if (blockData instanceof Leaves leaves)
+		if (IrisSettings.get().getGenerator().preventLeafDecay && blockData instanceof Leaves leaves)
 			leaves.setPersistent(true);
 		return new IrisBlockData(blockData, blockId);
 	}
@@ -71,9 +72,14 @@ public class HMCLeavesDataProvider extends ExternalDataProvider {
 
 	@Override
 	public void processUpdate(Engine engine, Block block, Identifier blockId) {
-		Boolean result = setCustomBlock.invoke(apiInstance, new Object[]{block.getLocation(), blockId.key(), true});
+		Boolean result = setCustomBlock.invoke(apiInstance, new Object[]{block.getLocation(), blockId.key(), false});
 		if (result == null || !result)
 			Iris.warn("Failed to set custom block! " + blockId.key() + " " + block.getX() + " " + block.getY() + " " + block.getZ());
+		else if (IrisSettings.get().getGenerator().preventLeafDecay) {
+			BlockData blockData = block.getBlockData();
+			if (blockData instanceof Leaves leaves)
+				leaves.setPersistent(true);
+		}
 	}
 
 	@Override

core/src/main/java/com/volmit/iris/core/link/Identifier.java

@@ -6,6 +6,10 @@ public record Identifier(String namespace, String key) {
 
     private static final String DEFAULT_NAMESPACE = "minecraft";
 
+    public static Identifier fromNamespacedKey(NamespacedKey key) {
+        return new Identifier(key.getNamespace(), key.getKey());
+    }
+
     public static Identifier fromString(String id) {
         String[] strings = id.split(":", 2);
         if (strings.length == 1) {

core/src/main/java/com/volmit/iris/core/nms/INMS.java

@@ -23,7 +23,13 @@ import com.volmit.iris.core.IrisSettings;
 import com.volmit.iris.core.nms.v1X.NMSBinding1X;
 import org.bukkit.Bukkit;
 
+import java.util.Map;
+
 public class INMS {
+    private static final Map<String, String> REVISION = Map.of(
+        "1.20.5", "v1_20_R4",
+        "1.20.6", "v1_20_R4"
+    );
     //@done
     private static final INMSBinding binding = bind();
 
@@ -37,7 +43,12 @@ public class INMS {
         }
 
         try {
-            return Bukkit.getServer().getClass().getCanonicalName().split("\\Q.\\E")[3];
+            String name = Bukkit.getServer().getClass().getCanonicalName();
+            if (name.equals("org.bukkit.craftbukkit.CraftServer")) {
+                return REVISION.getOrDefault(Bukkit.getServer().getBukkitVersion().split("-")[0], "BUKKIT");
+            } else {
+                return name.split("\\Q.\\E")[3];
+            }
         } catch (Throwable e) {
             Iris.reportError(e);
             Iris.error("Failed to determine server nms version!");

core/src/main/java/com/volmit/iris/core/nms/INMSBinding.java

@@ -18,8 +18,8 @@
 
 package com.volmit.iris.core.nms;
 
+import com.volmit.iris.core.nms.datapack.DataVersion;
 import com.volmit.iris.engine.framework.Engine;
-import com.volmit.iris.engine.object.IrisEntity;
 import com.volmit.iris.util.collection.KList;
 import com.volmit.iris.util.collection.KMap;
 import com.volmit.iris.util.mantle.Mantle;
@@ -36,7 +36,6 @@ import org.bukkit.entity.Dolphin;
 import org.bukkit.entity.Entity;
 import org.bukkit.entity.EntityType;
 import org.bukkit.event.entity.CreatureSpawnEvent;
-import org.bukkit.event.entity.EntitySpawnEvent;
 import org.bukkit.generator.ChunkGenerator;
 import org.bukkit.inventory.ItemStack;
 
@@ -112,4 +111,8 @@ public interface INMSBinding {
     Vector3d getBoundingbox(org.bukkit.entity.EntityType entity);
     
     Entity spawnEntity(Location location, EntityType type, CreatureSpawnEvent.SpawnReason reason);
+
+    default DataVersion getDataVersion() {
+        return DataVersion.V1192;
+    }
 }

core/src/main/java/com/volmit/iris/core/nms/datapack/DataVersion.java

@@ -0,0 +1,40 @@
+package com.volmit.iris.core.nms.datapack;
+
+import com.volmit.iris.core.nms.INMS;
+import com.volmit.iris.core.nms.datapack.v1192.DataFixerV1192;
+import com.volmit.iris.core.nms.datapack.v1206.DataFixerV1206;
+import com.volmit.iris.util.collection.KMap;
+import lombok.AccessLevel;
+import lombok.Getter;
+
+import java.util.function.Supplier;
+
+//https://minecraft.wiki/w/Pack_format
+@Getter
+public enum DataVersion {
+    V1192("1.19.2", 10, DataFixerV1192::new),
+    V1205("1.20.6", 41, DataFixerV1206::new);
+    private static final KMap<DataVersion, IDataFixer> cache = new KMap<>();
+    @Getter(AccessLevel.NONE)
+    private final Supplier<IDataFixer> constructor;
+    private final String version;
+    private final int packFormat;
+
+    DataVersion(String version, int packFormat, Supplier<IDataFixer> constructor) {
+        this.constructor = constructor;
+        this.packFormat = packFormat;
+        this.version = version;
+    }
+
+    public IDataFixer get() {
+        return cache.computeIfAbsent(this, k -> constructor.get());
+    }
+
+    public static IDataFixer getDefault() {
+        return INMS.get().getDataVersion().get();
+    }
+
+    public static DataVersion getLatest() {
+        return values()[values().length - 1];
+    }
+}

core/src/main/java/com/volmit/iris/core/nms/datapack/IDataFixer.java

@@ -0,0 +1,11 @@
+package com.volmit.iris.core.nms.datapack;
+
+import com.volmit.iris.engine.object.IrisBiomeCustom;
+import com.volmit.iris.util.json.JSONObject;
+
+public interface IDataFixer {
+
+    JSONObject fixCustomBiome(IrisBiomeCustom biome, JSONObject json);
+
+    JSONObject fixDimension(JSONObject json);
+}

core/src/main/java/com/volmit/iris/core/nms/datapack/v1192/DataFixerV1192.java

@@ -0,0 +1,18 @@
+package com.volmit.iris.core.nms.datapack.v1192;
+
+import com.volmit.iris.core.nms.datapack.IDataFixer;
+import com.volmit.iris.engine.object.IrisBiomeCustom;
+import com.volmit.iris.util.json.JSONObject;
+
+public class DataFixerV1192 implements IDataFixer {
+
+    @Override
+    public JSONObject fixCustomBiome(IrisBiomeCustom biome, JSONObject json) {
+        return json;
+    }
+
+    @Override
+    public JSONObject fixDimension(JSONObject json) {
+        return json;
+    }
+}

core/src/main/java/com/volmit/iris/core/nms/datapack/v1206/DataFixerV1206.java

@@ -0,0 +1,54 @@
+package com.volmit.iris.core.nms.datapack.v1206;
+
+import com.volmit.iris.core.nms.datapack.IDataFixer;
+import com.volmit.iris.engine.object.IrisBiomeCustom;
+import com.volmit.iris.engine.object.IrisBiomeCustomSpawn;
+import com.volmit.iris.engine.object.IrisBiomeCustomSpawnType;
+import com.volmit.iris.util.collection.KMap;
+import com.volmit.iris.util.json.JSONArray;
+import com.volmit.iris.util.json.JSONObject;
+
+import java.util.Locale;
+
+public class DataFixerV1206 implements IDataFixer {
+    @Override
+    public JSONObject fixCustomBiome(IrisBiomeCustom biome, JSONObject json) {
+        int spawnRarity = biome.getSpawnRarity();
+        if (spawnRarity > 0) {
+            json.put("creature_spawn_probability", Math.min(spawnRarity/20d, 0.9999999));
+        }
+
+        var spawns = biome.getSpawns();
+        if (spawns != null && spawns.isNotEmpty()) {
+            JSONObject spawners = new JSONObject();
+            KMap<IrisBiomeCustomSpawnType, JSONArray> groups = new KMap<>();
+
+            for (IrisBiomeCustomSpawn i : spawns) {
+                JSONArray g = groups.computeIfAbsent(i.getGroup(), (k) -> new JSONArray());
+                JSONObject o = new JSONObject();
+                o.put("type", "minecraft:" + i.getType().name().toLowerCase());
+                o.put("weight", i.getWeight());
+                o.put("minCount", Math.min(i.getMinCount()/20d, 0));
+                o.put("maxCount", Math.min(i.getMaxCount()/20d, 0.9999999));
+                g.put(o);
+            }
+
+            for (IrisBiomeCustomSpawnType i : groups.k()) {
+                spawners.put(i.name().toLowerCase(Locale.ROOT), groups.get(i));
+            }
+
+            json.put("spawners", spawners);
+        }
+        return json;
+    }
+
+    @Override
+    public JSONObject fixDimension(JSONObject json) {
+        if (!(json.get("monster_spawn_light_level") instanceof JSONObject lightLevel))
+            return json;
+        var value = (JSONObject) lightLevel.remove("value");
+        lightLevel.put("max_inclusive", value.get("max_inclusive"));
+        lightLevel.put("min_inclusive", value.get("min_inclusive"));
+        return json;
+    }
+}

core/src/main/java/com/volmit/iris/core/pregenerator/ChunkUpdater.java

@@ -0,0 +1,318 @@
+package com.volmit.iris.core.pregenerator;
+
+import com.volmit.iris.Iris;
+import com.volmit.iris.core.tools.IrisToolbelt;
+import com.volmit.iris.engine.framework.Engine;
+import com.volmit.iris.util.collection.KList;
+import com.volmit.iris.util.collection.KMap;
+import com.volmit.iris.util.format.Form;
+import com.volmit.iris.util.math.M;
+import com.volmit.iris.util.math.RollingSequence;
+import com.volmit.iris.util.math.Spiraler;
+import com.volmit.iris.util.scheduling.J;
+import io.papermc.lib.PaperLib;
+import org.bukkit.Chunk;
+import org.bukkit.World;
+
+import java.io.File;
+
+import java.util.ArrayList;
+import java.util.concurrent.*;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.atomic.AtomicLong;
+
+public class ChunkUpdater {
+    private AtomicBoolean paused;
+    private AtomicBoolean cancelled;
+    private KMap<Chunk, Long> lastUse;
+    private final RollingSequence chunksPerSecond;
+    private final AtomicInteger worldheightsize;
+    private final AtomicInteger worldwidthsize;
+    private final AtomicInteger totalChunks;
+    private final AtomicInteger totalMaxChunks;
+    private final AtomicInteger totalMcaregions;
+    private final AtomicInteger position;
+    private AtomicInteger chunksProcessed;
+    private AtomicInteger chunksUpdated;
+    private AtomicLong startTime;
+    private ExecutorService executor;
+    private ExecutorService chunkExecutor;
+    private ScheduledExecutorService scheduler;
+    private CompletableFuture future;
+    private  CountDownLatch latch;
+    private final Object pauseLock;
+    private final Engine engine;
+    private final World world;
+
+    public ChunkUpdater(World world) {
+        this.engine = IrisToolbelt.access(world).getEngine();
+        this.chunksPerSecond = new RollingSequence(5);
+        this.world = world;
+        this.lastUse = new KMap();
+        this.worldheightsize = new AtomicInteger(calculateWorldDimensions(new File(world.getWorldFolder(), "region"), 1));
+        this.worldwidthsize = new AtomicInteger(calculateWorldDimensions(new File(world.getWorldFolder(), "region"), 0));
+        int m = Math.max(worldheightsize.get(), worldwidthsize.get());
+        this.executor = Executors.newFixedThreadPool(Math.max(Runtime.getRuntime().availableProcessors() / 3, 1));
+        this.chunkExecutor = Executors.newFixedThreadPool(Math.max(Runtime.getRuntime().availableProcessors() / 3, 1));
+        this.scheduler = Executors.newScheduledThreadPool(1);
+        this.future = new CompletableFuture<>();
+        this.startTime = new AtomicLong();
+        this.worldheightsize.set(m);
+        this.worldwidthsize.set(m);
+        this.totalMaxChunks = new AtomicInteger((worldheightsize.get() / 16) * (worldwidthsize.get() / 16));
+        this.chunksProcessed = new AtomicInteger();
+        this.chunksUpdated = new AtomicInteger();
+        this.position = new AtomicInteger(0);
+        this.latch = new CountDownLatch(totalMaxChunks.get());
+        this.paused = new AtomicBoolean(false);
+        this.pauseLock = new Object();
+        this.cancelled = new AtomicBoolean(false);
+        this.totalChunks = new AtomicInteger(0);
+        this.totalMcaregions = new AtomicInteger(0);
+    }
+
+    public int getChunks() {
+        return totalMaxChunks.get();
+    }
+
+    public void start() {
+        unloadAndSaveAllChunks();
+        update();
+    }
+
+    public boolean pause() {
+        unloadAndSaveAllChunks();
+        if (paused.get()) {
+            paused.set(false);
+            return false;
+        } else {
+            paused.set(true);
+            return true;
+        }
+    }
+
+    public void stop() {
+        unloadAndSaveAllChunks();
+        cancelled.set(true);
+    }
+
+
+    private void update() {
+        Iris.info("Updating..");
+        try {
+            startTime.set(System.currentTimeMillis());
+            scheduler.scheduleAtFixedRate(() -> {
+                try {
+                    if (!paused.get()) {
+                        long eta = computeETA();
+                        long elapsedSeconds = (System.currentTimeMillis() - startTime.get()) / 1000;
+                        int processed = chunksProcessed.get();
+                        double cps = elapsedSeconds > 0 ? processed / (double) elapsedSeconds : 0;
+                        chunksPerSecond.put(cps);
+                        double percentage = ((double) chunksProcessed.get() / (double) totalMaxChunks.get()) * 100;
+                        if (!cancelled.get()) {
+                            Iris.info("Updated: " + Form.f(processed) + " of " + Form.f(totalMaxChunks.get()) + " (%.0f%%) " + Form.f(chunksPerSecond.getAverage()) + "/s, ETA: " + Form.duration(eta,
+                                    2), percentage);
+                        }
+                    }
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+            }, 0, 3, TimeUnit.SECONDS);
+
+            CompletableFuture.runAsync(() -> {
+                for (int i = 0; i < totalMaxChunks.get(); i++) {
+                    if (paused.get()) {
+                        synchronized (pauseLock) {
+                            try {
+                                pauseLock.wait();
+                            } catch (InterruptedException e) {
+                                Iris.error("Interrupted while waiting for executor: ");
+                                e.printStackTrace();
+                                break;
+                            }
+                        }
+                    }
+                    executor.submit(() -> {
+                        if (!cancelled.get()) {
+                            processNextChunk();   
+                        }
+                        latch.countDown();
+                    });
+                }
+            }).thenRun(() -> {
+                try {
+                    latch.await();
+                    close();
+                } catch (Exception e) {
+                    Thread.currentThread().interrupt();
+                }
+            });
+
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    public void close() {
+        try {
+            unloadAndSaveAllChunks();
+            executor.shutdown();
+            executor.awaitTermination(5, TimeUnit.SECONDS);
+            chunkExecutor.shutdown();
+            chunkExecutor.awaitTermination(5, TimeUnit.SECONDS);
+            scheduler.shutdownNow();
+        } catch (Exception ignored) {
+        }
+        if (cancelled.get()) {
+            Iris.info("Updated: " + Form.f(chunksUpdated.get()) + " Chunks");
+            Iris.info("Irritated: " + Form.f(chunksProcessed.get()) + " of " + Form.f(totalMaxChunks.get()));
+            Iris.info("Stopped updater.");
+        } else {
+            Iris.info("Processed: " + Form.f(chunksProcessed.get()) + " Chunks");
+            Iris.info("Finished Updating: " + Form.f(chunksUpdated.get()) + " Chunks");
+        }
+    }
+
+    private void processNextChunk() {
+        int pos = position.getAndIncrement();
+        int[] coords = getChunk(pos);
+        if (loadChunksIfGenerated(coords[0], coords[1])) {
+            Chunk c = world.getChunkAt(coords[0], coords[1]);
+            engine.updateChunk(c);
+            chunksUpdated.incrementAndGet();
+        }
+        chunksProcessed.getAndIncrement();
+    }
+
+    private boolean loadChunksIfGenerated(int x, int z) {
+        for (int dx = -1; dx <= 1; dx++) {
+            for (int dz = -1; dz <= 1; dz++) {
+                if (!PaperLib.isChunkGenerated(world, x + dx, z + dz)) {
+                    return false;
+                }
+            }
+        }
+
+        AtomicBoolean generated = new AtomicBoolean(true);
+        KList<Future<?>> futures = new KList<>(9);
+        for (int dx = -1; dx <= 1; dx++) {
+            for (int dz = -1; dz <= 1; dz++) {
+                int xx = x + dx;
+                int zz = z + dz;
+                futures.add(chunkExecutor.submit(() -> {
+                    Chunk c;
+                    try {
+                        c = PaperLib.getChunkAtAsync(world, xx, zz, false).get();
+                    } catch (InterruptedException | ExecutionException e) {
+                        generated.set(false);
+                        return;
+                    }
+                    if (!c.isLoaded()) {
+                        CountDownLatch latch = new CountDownLatch(1);
+                        J.s(() -> {
+                            c.load(false);
+                            latch.countDown();
+                        });
+                        try {
+                            latch.await();
+                        } catch (InterruptedException ignored) {}
+                    }
+                    if (!c.isGenerated()) {
+                        generated.set(false);
+                    }
+                    lastUse.put(c, M.ms());
+                }));
+            }
+        }
+        while (!futures.isEmpty()) {
+            futures.removeIf(Future::isDone);
+            try {
+                Thread.sleep(50);
+            } catch (InterruptedException ignored) {}
+        }
+        return generated.get();
+    }
+
+    private void unloadAndSaveAllChunks() {
+        try {
+            J.sfut(() -> {
+                if (world == null) {
+                    Iris.warn("World was null somehow...");
+                    return;
+                }
+
+                for (Chunk i : new ArrayList<>(lastUse.keySet())) {
+                    Long lastUseTime = lastUse.get(i);
+                    if (lastUseTime != null && M.ms() - lastUseTime >= 5000) {
+                        i.unload();
+                        lastUse.remove(i);
+                    }
+                }
+                world.save();
+            }).get();
+        } catch (Throwable e) {
+            e.printStackTrace();
+        }
+    }
+
+    private long computeETA() {
+        return (long) (totalMaxChunks.get() > 1024 ? // Generated chunks exceed 1/8th of total?
+                // If yes, use smooth function (which gets more accurate over time since its less sensitive to outliers)
+                ((totalMaxChunks.get() - chunksProcessed.get()) * ((double) (M.ms() - startTime.get()) / (double) chunksProcessed.get())) :
+                // If no, use quick function (which is less accurate over time but responds better to the initial delay)
+                ((totalMaxChunks.get() - chunksProcessed.get()) / chunksPerSecond.getAverage()) * 1000
+        );
+    }
+
+    public int calculateWorldDimensions(File regionDir, Integer o) {
+        File[] files = regionDir.listFiles((dir, name) -> name.endsWith(".mca"));
+
+        int minX = Integer.MAX_VALUE;
+        int maxX = Integer.MIN_VALUE;
+        int minZ = Integer.MAX_VALUE;
+        int maxZ = Integer.MIN_VALUE;
+
+        for (File file : files) {
+            String[] parts = file.getName().split("\\.");
+            int x = Integer.parseInt(parts[1]);
+            int z = Integer.parseInt(parts[2]);
+
+            if (x < minX) minX = x;
+            if (x > maxX) maxX = x;
+            if (z < minZ) minZ = z;
+            if (z > maxZ) maxZ = z;
+        }
+
+        int height = (maxX - minX + 1) * 32 * 16;
+        int width = (maxZ - minZ + 1) * 32 * 16;
+
+        if (o == 1) {
+            return height;
+        }
+        if (o == 0) {
+            return width;
+        }
+        return 0;
+    }
+
+    public int[] getChunk(int position) {
+        int p = -1;
+        AtomicInteger xx = new AtomicInteger();
+        AtomicInteger zz = new AtomicInteger();
+        Spiraler s = new Spiraler(worldheightsize.get() * 2, worldwidthsize.get() * 2, (x, z) -> {
+            xx.set(x);
+            zz.set(z);
+        });
+
+        while (s.hasNext() && p++ < position) {
+            s.next();
+        }
+        int[] coords = new int[2];
+        coords[0] = xx.get();
+        coords[1] = zz.get();
+
+        return coords;
+    }
+}

core/src/main/java/com/volmit/iris/core/safeguard/ServerBootSFG.java

@@ -5,7 +5,7 @@ import com.volmit.iris.core.nms.INMS;
 import com.volmit.iris.core.nms.v1X.NMSBinding1X;
 import org.bukkit.Bukkit;
 import org.bukkit.plugin.Plugin;
-
+import org.bukkit.plugin.PluginManager;
 import javax.tools.JavaCompiler;
 import javax.tools.ToolProvider;
 import java.io.File;
@@ -15,6 +15,7 @@ import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.nio.file.StandardOpenOption;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 import java.util.StringJoiner;
 
@@ -39,7 +40,7 @@ public class ServerBootSFG {
 
     public static void BootCheck() {
         Iris.info("Checking for possible conflicts..");
-        org.bukkit.plugin.PluginManager pluginManager = Bukkit.getPluginManager();
+        PluginManager pluginManager = Bukkit.getPluginManager();
         Plugin[] plugins = pluginManager.getPlugins();
 
         incompatibilities.clear();
@@ -64,24 +65,29 @@ public class ServerBootSFG {
                 joiner.add(entry.getKey());
             }
         }
+        // Legacy ServerInfo
+        String distro = Bukkit.getName().toLowerCase();
         if (
-                !instance.getServer().getVersion().contains("Purpur") &&
-                        !instance.getServer().getVersion().contains("Paper") &&
-                        !instance.getServer().getVersion().contains("Spigot") &&
-                        !instance.getServer().getVersion().contains("Pufferfish") &&
-                        !instance.getServer().getVersion().contains("Bukkit")) {
+                !distro.contains("purpur") &&
+                        !distro.contains("paper") &&
+                        !distro.contains("spigot") &&
+                        !distro.contains("pufferfish") &&
+                        !distro.contains("bukkit")) {
+
+
             passedserversoftware = false;
             joiner.add("Server Software");
-            severityHigh++;
+            severityMedium++;
         }
 
+
         if (INMS.get() instanceof NMSBinding1X) {
             unsuportedversion = true;
             joiner.add("Unsupported Minecraft Version");
             severityHigh++;
         }
 
-        if (getJavaVersion() != 17) {
+        if (!List.of(17, 21).contains(getJavaVersion())) {
             isJDK17 = false;
             joiner.add("Unsupported Java version");
             severityMedium++;

core/src/main/java/com/volmit/iris/core/safeguard/UtilsSFG.java

@@ -37,7 +37,7 @@ public class UtilsSFG {
             }
             if (ServerBootSFG.unsuportedversion) {
                 Iris.safeguard(C.RED + "Server Version");
-                Iris.safeguard(C.RED + "- Iris only supports 1.19.2 > 1.20.4");
+                Iris.safeguard(C.RED + "- Iris only supports 1.19.2 > 1.20.6");
             }
             if (!ServerBootSFG.passedserversoftware) {
                 Iris.safeguard(C.YELLOW + "Unsupported Server Software");
@@ -53,11 +53,11 @@ public class UtilsSFG {
             }
             if (!ServerBootSFG.isJDK17) {
                 Iris.safeguard(C.YELLOW + "Unsupported java version");
-                Iris.safeguard(C.YELLOW + "- Please consider using JDK 17 Instead of JDK " + Iris.getJavaVersion());
+                Iris.safeguard(C.YELLOW + "- Please consider using JDK 17 (or 21 for 1.20.6) Instead of JDK " + Iris.getJavaVersion());
             }
             if (ServerBootSFG.isJRE) {
                 Iris.safeguard(C.YELLOW + "Unsupported Server JDK");
-                Iris.safeguard(C.YELLOW + "- Please consider using JDK 17 Instead of JRE " + Iris.getJavaVersion());
+                Iris.safeguard(C.YELLOW + "- Please consider using JDK 17 (or 21 for 1.20.6) Instead of JRE " + Iris.getJavaVersion());
             }
         }
     }

core/src/main/java/com/volmit/iris/core/service/ExternalDataSVC.java

@@ -64,6 +64,10 @@ public class ExternalDataSVC implements IrisService {
         if (Bukkit.getPluginManager().getPlugin("MMOItems") != null) {
             Iris.info("MMOItems found, loading MMOItemsDataProvider...");
         }
+        providers.add(new EcoItemsDataProvider());
+        if (Bukkit.getPluginManager().getPlugin("EcoItems") != null) {
+            Iris.info("EcoItems found, loading EcoItemsDataProvider...");
+        }
 
         for (ExternalDataProvider p : providers) {
             if (p.isReady()) {

core/src/main/java/com/volmit/iris/core/service/IrisEngineSVC.java

@@ -78,6 +78,9 @@ public class IrisEngineSVC implements IrisService {
             t = t - 200;
         }
         this.setup();
+        this.TrimLogic();
+        this.UnloadLogic();
+
         trimAlive.begin();
         unloadAlive.begin();
         trimActiveAlive.begin();
@@ -85,8 +88,8 @@ public class IrisEngineSVC implements IrisService {
 
         updateTicker.start();
         cacheTicker.start();
-        trimTicker.start();
-        unloadTicker.start();
+        //trimTicker.start();
+        //unloadTicker.start();
         instance = this;
 
     }
@@ -104,10 +107,6 @@ public class IrisEngineSVC implements IrisService {
         return tectonicLimit.get();
     }
 
-    public void EngineReport() {
-        Iris.info(C.RED + "CRITICAL ENGINE FAILURE! The Tectonic Trim subsystem has not responded for: " + Form.duration(trimAlive.getMillis()) + ".");
-    }
-
     @EventHandler
     public void onWorldUnload(WorldUnloadEvent event) {
         updateWorlds();
@@ -179,9 +178,9 @@ public class IrisEngineSVC implements IrisService {
                     }
                     if (!isServerShuttingDown && isServerLoaded) {
                         if (!trimTicker.isAlive()) {
-                            Iris.info(C.IRIS + "TrimTicker found dead! Booting it up!");
+                            Iris.info(C.RED + "TrimTicker found dead! Booting it up!");
                             try {
-                                trimTicker.start();
+                                TrimLogic();
                             } catch (Exception e) {
                                 Iris.error("What happened?");
                                 e.printStackTrace();
@@ -189,9 +188,9 @@ public class IrisEngineSVC implements IrisService {
                         }
 
                         if (!unloadTicker.isAlive()) {
-                            Iris.info(C.IRIS + "UnloadTicker found dead! Booting it up!");
+                            Iris.info(C.RED + "UnloadTicker found dead! Booting it up!");
                             try {
-                                unloadTicker.start();
+                               UnloadLogic();
                             } catch (Exception e) {
                                 Iris.error("What happened?");
                                 e.printStackTrace();
@@ -205,63 +204,72 @@ public class IrisEngineSVC implements IrisService {
                 return 1000;
             }
         };
+    }
+    public void TrimLogic() {
+        if (trimTicker == null || !trimTicker.isAlive()) {
+            trimTicker = new Looper() {
+                private final Supplier<Engine> supplier = createSupplier();
 
-        trimTicker = new Looper() {
-            private final Supplier<Engine> supplier = createSupplier();
-            @Override
-            protected long loop() {
-                long start = System.currentTimeMillis();
-                trimAlive.reset();
-                try {
-                    Engine engine = supplier.get();
-                    if (engine != null) {
-                        engine.getMantle().trim(tectonicLimit.get() / lastUse.size());
-                    }
-                } catch (Throwable e) {
-                    Iris.reportError(e);
-                    Iris.info(C.RED + "EngineSVC: Failed to trim. Please contact support!");
-                    e.printStackTrace();
-                    return -1;
-                }
-
-                int size = lastUse.size();
-                long time = (size > 0 ? 1000/size : 1000) - (System.currentTimeMillis() - start);
-                if (time <= 0)
-                    return 0;
-                return time;
-            }
-        };
-
-        unloadTicker = new Looper() {
-            private final Supplier<Engine> supplier = createSupplier();
-
-            @Override
-            protected long loop() {
-                long start = System.currentTimeMillis();
-                unloadAlive.reset();
-                try {
-                    Engine engine = supplier.get();
-                    if (engine != null) {
-                        long unloadStart = System.currentTimeMillis();
-                        int count = engine.getMantle().unloadTectonicPlate(tectonicLimit.get() / lastUse.size());
-                        if (count > 0) {
-                            Iris.debug(C.GOLD + "Unloaded " +  C.YELLOW + count + " TectonicPlates in " + C.RED + Form.duration(System.currentTimeMillis() - unloadStart, 2));
+                @Override
+                protected long loop() {
+                    long start = System.currentTimeMillis();
+                    trimAlive.reset();
+                    try {
+                        Engine engine = supplier.get();
+                        if (engine != null) {
+                            engine.getMantle().trim(tectonicLimit.get() / lastUse.size());
                         }
+                    } catch (Throwable e) {
+                        Iris.reportError(e);
+                        Iris.info(C.RED + "EngineSVC: Failed to trim.");
+                        e.printStackTrace();
+                        return -1;
                     }
-                } catch (Throwable e) {
-                    Iris.reportError(e);
-                    Iris.info(C.RED + "EngineSVC: Failed to unload.");
-                    e.printStackTrace();
-                    return -1;
-                }
 
-                int size = lastUse.size();
-                long time = (size > 0 ? 1000/size : 1000) - (System.currentTimeMillis() - start);
-                if (time <= 0)
-                    return 0;
-                return time;
-            }
-        };
+                    int size = lastUse.size();
+                    long time = (size > 0 ? 1000 / size : 1000) - (System.currentTimeMillis() - start);
+                    if (time <= 0)
+                        return 0;
+                    return time;
+                }
+            };
+            trimTicker.start();
+        }
+    }
+    public void UnloadLogic() {
+        if (unloadTicker == null || !unloadTicker.isAlive()) {
+            unloadTicker = new Looper() {
+                private final Supplier<Engine> supplier = createSupplier();
+
+                @Override
+                protected long loop() {
+                    long start = System.currentTimeMillis();
+                    unloadAlive.reset();
+                    try {
+                        Engine engine = supplier.get();
+                        if (engine != null) {
+                            long unloadStart = System.currentTimeMillis();
+                            int count = engine.getMantle().unloadTectonicPlate(tectonicLimit.get() / lastUse.size());
+                            if (count > 0) {
+                                Iris.debug(C.GOLD + "Unloaded " + C.YELLOW + count + " TectonicPlates in " + C.RED + Form.duration(System.currentTimeMillis() - unloadStart, 2));
+                            }
+                        }
+                    } catch (Throwable e) {
+                        Iris.reportError(e);
+                        Iris.info(C.RED + "EngineSVC: Failed to unload.");
+                        e.printStackTrace();
+                        return -1;
+                    }
+
+                    int size = lastUse.size();
+                    long time = (size > 0 ? 1000 / size : 1000) - (System.currentTimeMillis() - start);
+                    if (time <= 0)
+                        return 0;
+                    return time;
+                }
+            };
+            unloadTicker.start();
+        }
     }
 
     private Supplier<Engine> createSupplier() {
@@ -281,7 +289,8 @@ public class IrisEngineSVC implements IrisService {
 
                     if (generator != null) {
                         Engine engine = generator.getEngine();
-                        if (engine != null && !engine.isStudio()) {
+                        boolean closed = engine.getMantle().getData().isClosed();
+                        if (engine != null && !engine.isStudio() && !closed) {
                             lastUseLock.lock();
                             lastUse.put(world, System.currentTimeMillis());
                             lastUseLock.unlock();

core/src/main/java/com/volmit/iris/core/service/WandSVC.java

@@ -30,9 +30,11 @@ import com.volmit.iris.util.format.C;
 import com.volmit.iris.util.math.M;
 import com.volmit.iris.util.matter.Matter;
 import com.volmit.iris.util.matter.WorldMatter;
+import com.volmit.iris.util.misc.E;
 import com.volmit.iris.util.plugin.IrisService;
 import com.volmit.iris.util.plugin.VolmitSender;
 import com.volmit.iris.util.scheduling.J;
+import com.volmit.iris.util.scheduling.S;
 import org.bukkit.*;
 import org.bukkit.block.Block;
 import org.bukkit.enchantments.Enchantment;
@@ -53,6 +55,9 @@ import java.util.ArrayList;
 import java.util.Objects;
 
 public class WandSVC implements IrisService {
+    private static final Particle CRIT_MAGIC = E.getOrDefault(Particle.class, "CRIT_MAGIC", "CRIT");
+    private static final Particle REDSTONE = E.getOrDefault(Particle.class,  "REDSTONE", "DUST");
+
     private static ItemStack dust;
     private static ItemStack wand;
 
@@ -162,11 +167,11 @@ public class WandSVC implements IrisService {
      */
     public static ItemStack createDust() {
         ItemStack is = new ItemStack(Material.GLOWSTONE_DUST);
-        is.addUnsafeEnchantment(Enchantment.ARROW_INFINITE, 1);
+        is.addUnsafeEnchantment(Enchantment.FIRE_ASPECT, 1);
         ItemMeta im = is.getItemMeta();
         im.setDisplayName(C.BOLD + "" + C.YELLOW + "Dust of Revealing");
         im.setUnbreakable(true);
-        im.addItemFlags(ItemFlag.HIDE_ATTRIBUTES, ItemFlag.HIDE_PLACED_ON, ItemFlag.HIDE_POTION_EFFECTS, ItemFlag.HIDE_DESTROYS, ItemFlag.HIDE_ENCHANTS);
+        im.addItemFlags(ItemFlag.values());
         im.setLore(new KList<String>().qadd("Right click on a block to reveal it's placement structure!"));
         is.setItemMeta(im);
 
@@ -206,11 +211,11 @@ public class WandSVC implements IrisService {
      */
     public static ItemStack createWand(Location a, Location b) {
         ItemStack is = new ItemStack(Material.BLAZE_ROD);
-        is.addUnsafeEnchantment(Enchantment.ARROW_INFINITE, 1);
+        is.addUnsafeEnchantment(Enchantment.FIRE_ASPECT, 1);
         ItemMeta im = is.getItemMeta();
         im.setDisplayName(C.BOLD + "" + C.GOLD + "Wand of Iris");
         im.setUnbreakable(true);
-        im.addItemFlags(ItemFlag.HIDE_ATTRIBUTES, ItemFlag.HIDE_PLACED_ON, ItemFlag.HIDE_POTION_EFFECTS, ItemFlag.HIDE_DESTROYS, ItemFlag.HIDE_ENCHANTS);
+        im.addItemFlags(ItemFlag.values());
         im.setLore(new KList<String>().add(locationToString(a), locationToString(b)));
         is.setItemMeta(im);
 
@@ -311,7 +316,7 @@ public class WandSVC implements IrisService {
      */
     public void draw(Location[] d, Player p) {
         Vector gx = Vector.getRandom().subtract(Vector.getRandom()).normalize().clone().multiply(0.65);
-        d[0].getWorld().spawnParticle(Particle.CRIT_MAGIC, d[0], 1, 0.5 + gx.getX(), 0.5 + gx.getY(), 0.5 + gx.getZ(), 0, null, false);
+        d[0].getWorld().spawnParticle(CRIT_MAGIC, d[0], 1, 0.5 + gx.getX(), 0.5 + gx.getY(), 0.5 + gx.getZ(), 0, null, false);
         Vector gxx = Vector.getRandom().subtract(Vector.getRandom()).normalize().clone().multiply(0.65);
         d[1].getWorld().spawnParticle(Particle.CRIT, d[1], 1, 0.5 + gxx.getX(), 0.5 + gxx.getY(), 0.5 + gxx.getZ(), 0, null, false);
 
@@ -370,7 +375,7 @@ public class WandSVC implements IrisService {
                             int r = color.getRed();
                             int g = color.getGreen();
                             int b = color.getBlue();
-                            p.spawnParticle(Particle.REDSTONE, lv.getX(), lv.getY(), lv.getZ(), 1, 0, 0, 0, 0, new Particle.DustOptions(org.bukkit.Color.fromRGB(r, g, b), 0.75f));
+                            p.spawnParticle(REDSTONE, lv.getX(), lv.getY(), lv.getZ(), 1, 0, 0, 0, 0, new Particle.DustOptions(org.bukkit.Color.fromRGB(r, g, b), 0.75f));
                         }
                     }
                 }

core/src/main/java/com/volmit/iris/core/tools/IrisBenchmarking.java

@@ -28,7 +28,6 @@ import java.io.InputStreamReader;
 
 import static com.google.common.math.LongMath.isPrime;
 import static com.volmit.iris.util.misc.getHardware.getCPUModel;
-import static com.volmit.iris.util.misc.getHardware.getDiskModel;
 public class IrisBenchmarking {
     static String ServerOS;
     static String filePath = "benchmark.dat";
@@ -180,12 +179,12 @@ public class IrisBenchmarking {
         Iris.info("- Data Compression: " + formatDouble(calculateDataCompression) + " MBytes/Sec");
 
         if (WindowsDiskSpeed) {
-            Iris.info("Disk Model: " + getDiskModel());
+            //Iris.info("Disk Model: " + getDiskModel());
             Iris.info(C.BLUE + "- Running with Windows System Assessment Tool");
             Iris.info("- Sequential 64.0 Write: " + C.BLUE + formatDouble(avgWriteSpeedMBps) + " Mbps");
             Iris.info("- Sequential 64.0 Read: " + C.BLUE + formatDouble(avgReadSpeedMBps) + " Mbps");
         } else {
-            Iris.info("Disk Model: " + getDiskModel());
+           // Iris.info("Disk Model: " + getDiskModel());
             Iris.info(C.GREEN + "- Running in Native Mode");
             Iris.info("- Average Write Speed: " + C.GREEN + formatDouble(avgWriteSpeedMBps) + " Mbps");
             Iris.info("- Average Read Speed: " + C.GREEN + formatDouble(avgReadSpeedMBps) + " Mbps");

core/src/main/java/com/volmit/iris/core/tools/IrisCreator.java

@@ -86,6 +86,7 @@ public class IrisCreator {
      * Benchmark mode
      */
     private boolean benchmark = false;
+    private boolean smartVanillaHeight = false;
 
     public static boolean removeFromBukkitYml(String name) throws IOException {
         YamlConfiguration yml = YamlConfiguration.loadConfiguration(BUKKIT_YML);
@@ -112,13 +113,6 @@ public class IrisCreator {
      */
 
     public World create() throws IrisException {
-        if (unstablemode){
-            Iris.info(C.RED + "Your server is experiencing an incompatibility with the Iris plugin. Please rectify this problem to avoid further complications.");
-            Iris.info(C.RED + "----------------------------------------------------------------");
-            Iris.info(C.RED + "Operation ran: Loading Iris World..");
-            UtilsSFG.printIncompatibleWarnings();
-            Iris.info(C.RED + "----------------------------------------------------------------");
-        }
         if (Bukkit.isPrimaryThread()) {
             throw new IrisException("You cannot invoke create() on the main thread.");
         }
@@ -149,6 +143,7 @@ public class IrisCreator {
                 .name(name)
                 .seed(seed)
                 .studio(studio)
+                .smartVanillaHeight(smartVanillaHeight)
                 .create();
         ServerConfigurator.installDataPacks(false);
 

core/src/main/java/com/volmit/iris/core/tools/IrisWorldCreator.java

@@ -32,6 +32,7 @@ public class IrisWorldCreator {
     private String name;
     private boolean studio = false;
     private String dimensionName = null;
+    private boolean smartVanillaHeight = false;
     private long seed = 1337;
 
     public IrisWorldCreator() {
@@ -63,6 +64,11 @@ public class IrisWorldCreator {
         return this;
     }
 
+    public IrisWorldCreator smartVanillaHeight(boolean smartVanillaHeight) {
+        this.smartVanillaHeight = smartVanillaHeight;
+        return this;
+    }
+
     public WorldCreator create() {
         IrisDimension dim = IrisData.loadAnyDimension(dimensionName);
 
@@ -76,7 +82,7 @@ public class IrisWorldCreator {
                 .build();
         ChunkGenerator g = new BukkitChunkGenerator(w, studio, studio
                 ? dim.getLoader().getDataFolder() :
-                new File(w.worldFolder(), "iris/pack"), dimensionName);
+                new File(w.worldFolder(), "iris/pack"), dimensionName, smartVanillaHeight);
 
 
         return new WorldCreator(name)

core/src/main/java/com/volmit/iris/core/wand/WandSelection.java

@@ -21,6 +21,7 @@ package com.volmit.iris.core.wand;
 import com.volmit.iris.util.data.Cuboid;
 import com.volmit.iris.util.math.M;
 import com.volmit.iris.util.math.RNG;
+import com.volmit.iris.util.misc.E;
 import org.bukkit.Location;
 import org.bukkit.Particle;
 import org.bukkit.entity.Player;
@@ -29,6 +30,7 @@ import org.bukkit.util.Vector;
 import java.awt.*;
 
 public class WandSelection {
+    private static final Particle REDSTONE = E.getOrDefault(Particle.class,  "REDSTONE", "DUST");
     private final Cuboid c;
     private final Player p;
 
@@ -101,7 +103,7 @@ public class WandSelection {
                             int g = color.getGreen();
                             int b = color.getBlue();
 
-                            p.spawnParticle(Particle.REDSTONE, a.getX(), a.getY(), a.getZ(),
+                            p.spawnParticle(REDSTONE, a.getX(), a.getY(), a.getZ(),
                                     1, 0, 0, 0, 0,
                                     new Particle.DustOptions(org.bukkit.Color.fromRGB(r, g, b),
                                             (float) dist * 3f));

core/src/main/java/com/volmit/iris/engine/IrisComplex.java

@@ -292,7 +292,7 @@ public class IrisComplex implements DataProvider {
                 double b = 0;
 
                 for (IrisGenerator gen : generators) {
-                    b += bx.getGenLinkMax(gen.getLoadKey());
+                    b += bx.getGenLinkMax(gen.getLoadKey(), engine);
                 }
 
                 return b;
@@ -311,7 +311,7 @@ public class IrisComplex implements DataProvider {
                 double b = 0;
 
                 for (IrisGenerator gen : generators) {
-                    b += bx.getGenLinkMin(gen.getLoadKey());
+                    b += bx.getGenLinkMin(gen.getLoadKey(), engine);
                 }
 
                 return b;

core/src/main/java/com/volmit/iris/engine/framework/placer/WorldObjectPlacer.java

@@ -0,0 +1,127 @@
+package com.volmit.iris.engine.framework.placer;
+
+import com.volmit.iris.Iris;
+import com.volmit.iris.core.loader.IrisData;
+import com.volmit.iris.core.tools.IrisToolbelt;
+import com.volmit.iris.engine.data.cache.Cache;
+import com.volmit.iris.engine.framework.Engine;
+import com.volmit.iris.engine.framework.IrisLootEvent;
+import com.volmit.iris.engine.mantle.EngineMantle;
+import com.volmit.iris.engine.object.IObjectPlacer;
+import com.volmit.iris.engine.object.InventorySlotType;
+import com.volmit.iris.engine.object.IrisLootTable;
+import com.volmit.iris.engine.object.TileData;
+import com.volmit.iris.util.collection.KList;
+import com.volmit.iris.util.data.B;
+import com.volmit.iris.util.math.RNG;
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import org.bukkit.Bukkit;
+import org.bukkit.Material;
+import org.bukkit.World;
+import org.bukkit.block.Block;
+import org.bukkit.block.BlockState;
+import org.bukkit.block.TileState;
+import org.bukkit.block.data.BlockData;
+import org.bukkit.inventory.InventoryHolder;
+
+@Getter
+@EqualsAndHashCode(exclude = {"engine", "mantle"})
+public class WorldObjectPlacer implements IObjectPlacer {
+    private final World world;
+    private final Engine engine;
+    private final EngineMantle mantle;
+
+    public WorldObjectPlacer(World world) {
+        var a = IrisToolbelt.access(world);
+        if (a == null || a.getEngine() == null) throw new IllegalStateException(world.getName() + " is not an Iris World!");
+        this.world = world;
+        this.engine = a.getEngine();
+        this.mantle = engine.getMantle();
+    }
+
+    @Override
+    public int getHighest(int x, int z, IrisData data) {
+        return mantle.getHighest(x, z, data);
+    }
+
+    @Override
+    public int getHighest(int x, int z, IrisData data, boolean ignoreFluid) {
+        return mantle.getHighest(x, z, data, ignoreFluid);
+    }
+
+    @Override
+    public void set(int x, int y, int z, BlockData d) {
+        Block block = world.getBlockAt(x, y + world.getMinHeight(), z);
+
+        if (y <= world.getMinHeight() || block.getType() == Material.BEDROCK) return;
+        InventorySlotType slot = null;
+        if (B.isStorageChest(d)) {
+            slot = InventorySlotType.STORAGE;
+        }
+
+        if (slot != null) {
+            RNG rx = new RNG(Cache.key(x, z));
+            KList<IrisLootTable> tables = engine.getLootTables(rx, block);
+
+            try {
+                Bukkit.getPluginManager().callEvent(new IrisLootEvent(engine, block, slot, tables));
+
+                if (!tables.isEmpty()){
+                    Iris.debug("IrisLootEvent has been accessed");
+                }
+
+                if (tables.isEmpty())
+                    return;
+                InventoryHolder m = (InventoryHolder) block.getState();
+                engine.addItems(false, m.getInventory(), rx, tables, slot, x, y, z, 15);
+            } catch (Throwable e) {
+                Iris.reportError(e);
+            }
+        }
+
+        block.setBlockData(d);
+    }
+
+    @Override
+    public BlockData get(int x, int y, int z) {
+        return world.getBlockAt(x, y + world.getMinHeight(), z).getBlockData();
+    }
+
+    @Override
+    public boolean isPreventingDecay() {
+        return mantle.isPreventingDecay();
+    }
+
+    @Override
+    public boolean isCarved(int x, int y, int z) {
+        return mantle.isCarved(x, y, z);
+    }
+
+    @Override
+    public boolean isSolid(int x, int y, int z) {
+        return world.getBlockAt(x, y + world.getMinHeight(), z).getType().isSolid();
+    }
+
+    @Override
+    public boolean isUnderwater(int x, int z) {
+        return mantle.isUnderwater(x, z);
+    }
+
+    @Override
+    public int getFluidHeight() {
+        return mantle.getFluidHeight();
+    }
+
+    @Override
+    public boolean isDebugSmartBore() {
+        return mantle.isDebugSmartBore();
+    }
+
+    @Override
+    public void setTile(int xx, int yy, int zz, TileData<? extends TileState> tile) {
+        BlockState state = world.getBlockAt(xx, yy + world.getMinHeight(), zz).getState();
+        tile.toBukkitTry(state);
+        state.update();
+    }
+}

core/src/main/java/com/volmit/iris/engine/jigsaw/PlannedPiece.java

@@ -20,29 +20,19 @@ package com.volmit.iris.engine.jigsaw;
 
 import com.volmit.iris.Iris;
 import com.volmit.iris.core.loader.IrisData;
-import com.volmit.iris.core.tools.IrisToolbelt;
-import com.volmit.iris.engine.framework.Engine;
 import com.volmit.iris.engine.object.*;
-import com.volmit.iris.engine.platform.PlatformChunkGenerator;
 import com.volmit.iris.util.collection.KList;
-import com.volmit.iris.util.context.IrisContext;
+import com.volmit.iris.util.collection.KMap;
 import com.volmit.iris.util.math.AxisAlignedBB;
-import com.volmit.iris.util.math.BlockPosition;
-import com.volmit.iris.util.math.RNG;
+import lombok.AccessLevel;
 import lombok.Data;
-import org.bukkit.Material;
-import org.bukkit.World;
-import org.bukkit.block.Block;
-import org.bukkit.block.BlockState;
-import org.bukkit.block.TileState;
-import org.bukkit.block.data.BlockData;
-import org.bukkit.inventory.InventoryHolder;
+import lombok.EqualsAndHashCode;
+import lombok.Setter;
 import org.bukkit.util.BlockVector;
 
 import java.util.ArrayList;
 import java.util.List;
 
-@SuppressWarnings("ALL")
 @Data
 public class PlannedPiece {
     private IrisPosition position;
@@ -50,11 +40,19 @@ public class PlannedPiece {
     private IrisObject ogObject;
     private IrisJigsawPiece piece;
     private IrisObjectRotation rotation;
+    @EqualsAndHashCode.Exclude
     private IrisData data;
     private KList<IrisJigsawPieceConnector> connected;
     private boolean dead = false;
     private AxisAlignedBB box;
+    @EqualsAndHashCode.Exclude
     private PlannedStructure structure;
+    @EqualsAndHashCode.Exclude
+    @Setter(AccessLevel.NONE)
+    private ParentConnection parent = null;
+    @EqualsAndHashCode.Exclude
+    @Setter(AccessLevel.NONE)
+    private KMap<IrisJigsawPieceConnector, IrisPosition> realPositions;
 
     public PlannedPiece(PlannedStructure structure, IrisPosition position, IrisJigsawPiece piece) {
         this(structure, position, piece, 0, 0, 0);
@@ -76,6 +74,7 @@ public class PlannedPiece {
         this.object.setLoadKey(piece.getObject());
         this.ogObject.setLoadKey(piece.getObject());
         this.connected = new KList<>();
+        this.realPositions = new KMap<>();
 
     }
 
@@ -94,7 +93,15 @@ public class PlannedPiece {
         }
 
         BlockVector v = getObject().getCenter();
-        box = object.getAABB().shifted(position.add(new IrisPosition(object.getCenter())));
+        IrisPosition pos = new IrisPosition();
+        IrisObjectPlacement options = piece.getPlacementOptions();
+        if (options != null && options.getTranslate() != null) {
+            IrisObjectTranslate translate = options.getTranslate();
+            pos.setX(translate.getX());
+            pos.setY(translate.getY());
+            pos.setZ(translate.getZ());
+        }
+        box = object.getAABB().shifted(position.add(new IrisPosition(object.getCenter())).add(pos));
         return box;
     }
 
@@ -126,11 +133,21 @@ public class PlannedPiece {
         return c;
     }
 
-    public boolean connect(IrisJigsawPieceConnector c) {
-        if (piece.getConnectors().contains(c)) {
-            return connected.addIfMissing(c);
-        }
+    public KList<IrisJigsawPieceConnector> getChildConnectors() {
+        ParentConnection pc = getParent();
+        KList<IrisJigsawPieceConnector> c = getConnected().copy();
+        if (pc != null) c.removeIf(i -> i.equals(pc.connector));
+        return c;
+    }
 
+    public boolean connect(IrisJigsawPieceConnector c, PlannedPiece p, IrisJigsawPieceConnector pc) {
+        if (piece.getConnectors().contains(c) && p.getPiece().getConnectors().contains(pc)) {
+            if (connected.contains(c) || p.connected.contains(pc)) return false;
+            connected.add(c);
+            p.connected.add(pc);
+            p.parent = new ParentConnection(this, c, p, pc);
+            return true;
+        }
         return false;
     }
 
@@ -162,108 +179,29 @@ public class PlannedPiece {
     }
 
     public boolean isFull() {
-        return connected.size() >= piece.getConnectors().size() || isDead();
+        return connected.size() >= piece.getConnectors().size();
     }
 
-    public void place(World world) {
-        PlatformChunkGenerator a = IrisToolbelt.access(world);
-
-        int minY = 0;
-        if (a != null) {
-            minY = a.getEngine().getMinHeight();
-
-            if (!a.getEngine().getDimension().isBedrock())
-                minY--; //If the dimension has no bedrock, allow it to go a block lower
+    public void setRealPositions(int x, int y, int z, IObjectPlacer placer) {
+        boolean isUnderwater = piece.getPlacementOptions().isUnderwater();
+        for (IrisJigsawPieceConnector c : piece.getConnectors()) {
+            var pos = c.getPosition().add(new IrisPosition(x, 0, z));
+            if (y < 0) {
+                pos.setY(pos.getY() + placer.getHighest(pos.getX(), pos.getZ(), getData(), isUnderwater) + (object.getH() / 2));
+            } else {
+                pos.setY(pos.getY() + y);
+            }
+            realPositions.put(c, pos);
         }
+    }
 
-        getPiece().getPlacementOptions().setTranslate(new IrisObjectTranslate());
-        getPiece().getPlacementOptions().setRotation(rotation);
-        int finalMinY = minY;
-        RNG rng = getStructure().getRng().nextParallelRNG(37555);
-
-        // TODO: REAL CLASSES!!!!!!!
-        getOgObject().place(position.getX() + getObject().getCenter().getBlockX(), position.getY() + getObject().getCenter().getBlockY(), position.getZ() + getObject().getCenter().getBlockZ(), new IObjectPlacer() {
-            @Override
-            public int getHighest(int x, int z, IrisData data) {
-                return position.getY();
-            }
-
-            @Override
-            public int getHighest(int x, int z, IrisData data, boolean ignoreFluid) {
-                return position.getY();
-            }
-
-            @Override
-            public void set(int x, int y, int z, BlockData d) {
-                Block block = world.getBlockAt(x, y, z);
-
-                //Prevent blocks being set in or bellow bedrock
-                if (y <= finalMinY || block.getType() == Material.BEDROCK) return;
-
-                block.setBlockData(d);
-
-                if (a != null && getPiece().getPlacementOptions().getLoot().isNotEmpty() &&
-                        block.getState() instanceof InventoryHolder) {
-
-                    IrisLootTable table = getPiece().getPlacementOptions().getTable(block.getBlockData(), getData());
-                    if (table == null) return;
-                    Engine engine = a.getEngine();
-                    engine.addItems(false, ((InventoryHolder) block.getState()).getInventory(),
-                            rng.nextParallelRNG(BlockPosition.toLong(x, y, z)),
-                            new KList<>(table), InventorySlotType.STORAGE, x, y, z, 15);
-                }
-            }
-
-            @Override
-            public BlockData get(int x, int y, int z) {
-                return world.getBlockAt(x, y, z).getBlockData();
-            }
-
-            @Override
-            public boolean isPreventingDecay() {
-                return false;
-            }
-
-            @Override
-            public boolean isCarved(int x, int y, int z) {
-                return false;
-            }
-
-            @Override
-            public boolean isSolid(int x, int y, int z) {
-                return world.getBlockAt(x, y, z).getType().isSolid();
-            }
-
-            @Override
-            public boolean isUnderwater(int x, int z) {
-                return false;
-            }
-
-            @Override
-            public int getFluidHeight() {
-                return 0;
-            }
-
-            @Override
-            public boolean isDebugSmartBore() {
-                return false;
-            }
-
-            @Override
-            public void setTile(int xx, int yy, int zz, TileData<? extends TileState> tile) {
-                BlockState state = world.getBlockAt(xx, yy, zz).getState();
-                tile.toBukkitTry(state);
-                state.update();
-            }
-
-            @Override
-            public Engine getEngine() {
-                if (IrisToolbelt.isIrisWorld(world)) {
-                    return IrisToolbelt.access(world).getEngine();
-                }
-
-                return IrisContext.get().getEngine();
-            }
-        }, piece.getPlacementOptions(), rng, getData());
+    public record ParentConnection(PlannedPiece parent, IrisJigsawPieceConnector parentConnector, PlannedPiece self, IrisJigsawPieceConnector connector) {
+        public IrisPosition getTargetPosition() {
+            var pos = parent.realPositions.get(parentConnector);
+            if (pos == null) return null;
+            return pos.add(new IrisPosition(parentConnector.getDirection().toVector()))
+                    .sub(connector.getPosition())
+                    .sub(new IrisPosition(self.object.getCenter()));
+        }
     }
 }

core/src/main/java/com/volmit/iris/engine/jigsaw/PlannedStructure.java

@@ -21,19 +21,20 @@ package com.volmit.iris.engine.jigsaw;
 import com.googlecode.concurrentlinkedhashmap.ConcurrentLinkedHashMap;
 import com.volmit.iris.Iris;
 import com.volmit.iris.core.loader.IrisData;
-import com.volmit.iris.engine.data.cache.Cache;
 import com.volmit.iris.engine.framework.Engine;
-import com.volmit.iris.engine.mantle.MantleWriter;
+import com.volmit.iris.engine.framework.placer.WorldObjectPlacer;
 import com.volmit.iris.engine.object.*;
 import com.volmit.iris.util.collection.KList;
 import com.volmit.iris.util.mantle.Mantle;
+import com.volmit.iris.util.math.Position2;
 import com.volmit.iris.util.math.RNG;
 import com.volmit.iris.util.matter.slices.container.JigsawPieceContainer;
+import com.volmit.iris.util.matter.slices.container.JigsawStructuresContainer;
+import com.volmit.iris.util.scheduling.J;
 import lombok.Data;
 import org.bukkit.Axis;
-import org.bukkit.World;
-import org.bukkit.block.TileState;
-import org.bukkit.block.data.BlockData;
+
+import java.util.function.Consumer;
 
 @Data
 public class PlannedStructure {
@@ -74,33 +75,44 @@ public class PlannedStructure {
         }
     }
 
-    public void place(IObjectPlacer placer, Mantle e, Engine eng) {
+    public boolean place(IObjectPlacer placer, Mantle e, Engine eng) {
         IrisObjectPlacement options = new IrisObjectPlacement();
-        options.getRotation().setEnabled(false);
+        options.setRotation(IrisObjectRotation.of(0,0,0));
         int startHeight = pieces.get(0).getPosition().getY();
 
+        boolean placed = false;
         for (PlannedPiece i : pieces) {
-            place(i, startHeight, options, placer, e, eng);
+            if (place(i, startHeight, options, placer, e, eng))
+                placed = true;
         }
+        if (placed) {
+            Position2 chunkPos = new Position2(position.getX() >> 4, position.getZ() >> 4);
+            Position2 regionPos = new Position2(chunkPos.getX() >> 5, chunkPos.getZ() >> 5);
+            JigsawStructuresContainer slice = e.get(regionPos.getX(), 0, regionPos.getZ(), JigsawStructuresContainer.class);
+            if (slice == null) slice = new JigsawStructuresContainer();
+            slice.add(structure, chunkPos);
+            e.set(regionPos.getX(), 0, regionPos.getZ(), slice);
+        }
+        return placed;
     }
 
-    public void place(PlannedPiece i, int startHeight, IrisObjectPlacement o, IObjectPlacer placer, Mantle e, Engine eng) {
+    public boolean place(PlannedPiece i, int startHeight, IrisObjectPlacement o, IObjectPlacer placer, Mantle e, Engine eng) {
         IrisObjectPlacement options = o;
 
         if (i.getPiece().getPlacementOptions() != null) {
             options = i.getPiece().getPlacementOptions();
             options.getRotation().setEnabled(false);
+            options.setRotateTowardsSlope(false);
+            options.setWarp(new IrisGeneratorStyle(NoiseStyle.FLAT));
         } else {
             options.setMode(i.getPiece().getPlaceMode());
         }
 
-        IrisObject vo = i.getOgObject();
         IrisObject v = i.getObject();
         int sx = (v.getW() / 2);
         int sz = (v.getD() / 2);
         int xx = i.getPosition().getX() + sx;
         int zz = i.getPosition().getZ() + sz;
-        RNG rngf = new RNG(Cache.key(xx, zz));
         int offset = i.getPosition().getY() - startHeight;
         int height;
 
@@ -108,12 +120,23 @@ public class PlannedStructure {
             if (i.getStructure().getStructure().getOverrideYRange() != null) {
                 height = (int) i.getStructure().getStructure().getOverrideYRange().get(rng, xx, zz, getData());
             } else {
-                height = placer.getHighest(xx, zz, getData());
+                height = placer.getHighest(xx, zz, getData(), options.isUnderwater());
             }
         } else {
             height = i.getStructure().getStructure().getLockY();
         }
 
+        PlannedPiece.ParentConnection connection = i.getParent();
+        if (connection != null && connection.connector().isLockY()) {
+            var pos = connection.getTargetPosition();
+            if (pos != null) {
+                height = pos.getY();
+                offset = 0;
+            } else {
+                Iris.warn("Failed to get target position for " + v.getLoadKey());
+            }
+        }
+
         height += offset + (v.getH() / 2);
 
         if (options.getMode().equals(ObjectPlaceMode.PAINT)) {
@@ -122,16 +145,15 @@ public class PlannedStructure {
 
         int id = rng.i(0, Integer.MAX_VALUE);
         JigsawPieceContainer container = JigsawPieceContainer.toContainer(i.getPiece());
-        vo.place(xx, height, zz, placer, options, rng, (b, data) -> {
+        i.setRealPositions(xx, height, zz, placer);
+        return v.place(xx, height, zz, placer, options, rng, (b, data) -> {
             e.set(b.getX(), b.getY(), b.getZ(), v.getLoadKey() + "@" + id);
             e.set(b.getX(), b.getY(), b.getZ(), container);
-        }, null, getData());
+        }, null, getData().getEngine() != null ? getData() : eng.getData()) != -1;
     }
 
-    public void place(World world) {
-        for (PlannedPiece i : pieces) {
-            Iris.sq(() -> i.place(world));
-        }
+    public void place(WorldObjectPlacer placer, Consumer<Boolean> consumer) {
+        J.s(() -> consumer.accept(place(placer, placer.getMantle().getMantle(), placer.getEngine())));
     }
 
     private void generateOutwards() {
@@ -167,9 +189,7 @@ public class PlannedStructure {
 
     private boolean generateRotatedPiece(PlannedPiece piece, IrisJigsawPieceConnector pieceConnector, IrisJigsawPiece idea) {
         if (!piece.getPiece().getPlacementOptions().getRotation().isEnabled()) {
-            if (generateRotatedPiece(piece, pieceConnector, idea, 0, 0, 0)) {
-                return true;
-            }
+            return generateRotatedPiece(piece, pieceConnector, idea, 0, 0, 0);
         }
 
         KList<Integer> forder1 = new KList<Integer>().qadd(0).qadd(1).qadd(2).qadd(3).shuffle(rng);
@@ -216,7 +236,7 @@ public class PlannedStructure {
     }
 
     private boolean generateRotatedPiece(PlannedPiece piece, IrisJigsawPieceConnector pieceConnector, IrisJigsawPiece idea, int x, int y, int z) {
-        return generateRotatedPiece(piece, pieceConnector, idea, IrisObjectRotation.of(x, y, z));
+        return generateRotatedPiece(piece, pieceConnector, idea, IrisObjectRotation.of(x * 90D, y * 90D, z * 90D));
     }
 
     private boolean generatePositionedPiece(PlannedPiece piece, IrisJigsawPieceConnector pieceConnector, PlannedPiece test, IrisJigsawPieceConnector testConnector) {
@@ -240,8 +260,7 @@ public class PlannedStructure {
             return false;
         }
 
-        piece.connect(pieceConnector);
-        test.connect(testConnector);
+        piece.connect(pieceConnector, test, testConnector);
         pieces.add(test);
 
         return true;
@@ -250,7 +269,8 @@ public class PlannedStructure {
     private KList<IrisJigsawPiece> getShuffledPiecesFor(IrisJigsawPieceConnector c) {
         KList<IrisJigsawPiece> p = new KList<>();
 
-        for (String i : c.getPools().shuffleCopy(rng)) {
+        KList<String> pools = terminating && getStructure().getTerminatePool() != null ? new KList<>(getStructure().getTerminatePool()) : c.getPools().shuffleCopy(rng);
+        for (String i : pools) {
             for (String j : getData().getJigsawPoolLoader().load(i).getPieces().shuffleCopy(rng)) {
                 IrisJigsawPiece pi = getData().getJigsawPieceLoader().load(j);
 
@@ -276,7 +296,9 @@ public class PlannedStructure {
     }
 
     public KList<PlannedPiece> getPiecesWithAvailableConnectors() {
-        return pieces.copy().removeWhere(PlannedPiece::isFull);
+        KList<PlannedPiece> available = pieces.copy().removeWhere(PlannedPiece::isFull);
+        if (!terminating) available.removeIf(PlannedPiece::isDead);
+        return available;
     }
 
     public int getVolume() {
@@ -301,6 +323,10 @@ public class PlannedStructure {
 
     public boolean collidesWith(PlannedPiece piece, PlannedPiece ignore) {
         for (PlannedPiece i : pieces) {
+            if (i.equals(ignore)) {
+                continue;
+            }
+
             if (i.collidesWith(piece)) {
                 return true;
             }

core/src/main/java/com/volmit/iris/engine/mantle/components/MantleJigsawComponent.java

@@ -24,13 +24,17 @@ import com.volmit.iris.engine.mantle.IrisMantleComponent;
 import com.volmit.iris.engine.mantle.MantleWriter;
 import com.volmit.iris.engine.object.*;
 import com.volmit.iris.util.collection.KList;
+import com.volmit.iris.util.collection.KMap;
+import com.volmit.iris.util.collection.KSet;
 import com.volmit.iris.util.context.ChunkContext;
 import com.volmit.iris.util.documentation.BlockCoordinates;
 import com.volmit.iris.util.documentation.ChunkCoordinates;
 import com.volmit.iris.util.mantle.MantleFlag;
 import com.volmit.iris.util.math.Position2;
 import com.volmit.iris.util.math.RNG;
+import com.volmit.iris.util.matter.slices.container.JigsawStructuresContainer;
 import com.volmit.iris.util.noise.CNG;
+import org.jetbrains.annotations.Nullable;
 
 import java.util.List;
 
@@ -39,21 +43,22 @@ public class MantleJigsawComponent extends IrisMantleComponent {
 
     public MantleJigsawComponent(EngineMantle engineMantle) {
         super(engineMantle, MantleFlag.JIGSAW);
-        cng = NoiseStyle.STATIC.create(new RNG(engineMantle.getEngine().getSeedManager().getJigsaw()));
+        cng = NoiseStyle.STATIC.create(new RNG(jigsaw()));
     }
 
     @Override
     public void generateLayer(MantleWriter writer, int x, int z, ChunkContext context) {
-        RNG rng = new RNG(cng.fit(-Integer.MAX_VALUE, Integer.MAX_VALUE, x, z));
         int xxx = 8 + (x << 4);
         int zzz = 8 + (z << 4);
         IrisRegion region = getComplex().getRegionStream().get(xxx, zzz);
         IrisBiome biome = getComplex().getTrueBiomeStream().get(xxx, zzz);
-        generateJigsaw(writer, rng, x, z, biome, region);
+        generateJigsaw(writer, x, z, biome, region);
     }
 
     @ChunkCoordinates
-    private void generateJigsaw(MantleWriter writer, RNG rng, int x, int z, IrisBiome biome, IrisRegion region) {
+    private void generateJigsaw(MantleWriter writer, int x, int z, IrisBiome biome, IrisRegion region) {
+        long seed = cng.fit(Integer.MIN_VALUE, Integer.MIN_VALUE, x, z);
+
         if (getDimension().getStronghold() != null) {
             List<Position2> poss = getDimension().getStrongholds(seed());
 
@@ -61,28 +66,61 @@ public class MantleJigsawComponent extends IrisMantleComponent {
                 for (Position2 pos : poss) {
                     if (x == pos.getX() >> 4 && z == pos.getZ() >> 4) {
                         IrisJigsawStructure structure = getData().getJigsawStructureLoader().load(getDimension().getStronghold());
-                        place(writer, pos.toIris(), structure, rng);
+                        place(writer, pos.toIris(), structure, new RNG(seed));
                         return;
                     }
                 }
             }
         }
 
-        boolean placed = placeStructures(writer, rng, x, z, biome.getJigsawStructures());
+        KSet<Position2> cachedRegions = new KSet<>();
+        KMap<String, KSet<Position2>> cache = new KMap<>();
+        KMap<Position2, Double> distanceCache = new KMap<>();
+        boolean placed = placeStructures(writer, seed, x, z, biome.getJigsawStructures(), cachedRegions, cache, distanceCache);
         if (!placed)
-            placed = placeStructures(writer, rng, x, z, region.getJigsawStructures());
+            placed = placeStructures(writer, seed, x, z, region.getJigsawStructures(), cachedRegions, cache, distanceCache);
         if (!placed)
-            placeStructures(writer, rng, x, z, getDimension().getJigsawStructures());
+            placeStructures(writer, seed, x, z, getDimension().getJigsawStructures(), cachedRegions, cache, distanceCache);
     }
 
     @ChunkCoordinates
-    private boolean placeStructures(MantleWriter writer, RNG rng, int x, int z, KList<IrisJigsawStructurePlacement> structures) {
-        for (IrisJigsawStructurePlacement i : structures) {
-            if (rng.nextInt(i.getRarity()) == 0) {
-                IrisPosition position = new IrisPosition((x << 4) + rng.nextInt(15), 0, (z << 4) + rng.nextInt(15));
-                IrisJigsawStructure structure = getData().getJigsawStructureLoader().load(i.getStructure());
-                place(writer, position, structure, rng);
-                return true;
+    private boolean placeStructures(MantleWriter writer, long seed, int x, int z, KList<IrisJigsawStructurePlacement> structures,
+            KSet<Position2> cachedRegions, KMap<String, KSet<Position2>> cache, KMap<Position2, Double> distanceCache) {
+        IrisJigsawStructurePlacement i = pick(structures, seed, x, z);
+        if (i == null || checkMinDistances(i.collectMinDistances(), x, z, cachedRegions, cache, distanceCache))
+            return false;
+        RNG rng = new RNG(seed);
+        IrisPosition position = new IrisPosition((x << 4) + rng.nextInt(15), 0, (z << 4) + rng.nextInt(15));
+        IrisJigsawStructure structure = getData().getJigsawStructureLoader().load(i.getStructure());
+        return place(writer, position, structure, rng);
+    }
+
+    @ChunkCoordinates
+    private boolean checkMinDistances(KMap<String, Integer> minDistances, int x, int z, KSet<Position2> cachedRegions, KMap<String, KSet<Position2>> cache, KMap<Position2, Double> distanceCache) {
+        int range = 0;
+        for (int d : minDistances.values())
+            range = Math.max(range, d);
+
+        for (int xx = -range; xx <= range; xx++) {
+            for (int zz = -range; zz <= range; zz++) {
+                Position2 pos = new Position2((xx + x) >> 5, (zz + z) >> 5);
+                if (cachedRegions.contains(pos)) continue;
+                cachedRegions.add(pos);
+                JigsawStructuresContainer container = getMantle().get(pos.getX(), 0, pos.getZ(), JigsawStructuresContainer.class);
+                if (container == null) continue;
+                for (String key : container.getStructures()) {
+                    cache.computeIfAbsent(key, k -> new KSet<>()).addAll(container.getPositions(key));
+                }
+            }
+        }
+        Position2 pos = new Position2(x, z);
+        for (String structure : minDistances.keySet()) {
+            if (!cache.containsKey(structure)) continue;
+            double minDist = minDistances.get(structure);
+            minDist = minDist * minDist;
+            for (Position2 sPos : cache.get(structure)) {
+                double dist = distanceCache.computeIfAbsent(sPos,  position2 -> position2.distance(pos));
+                if (minDist > dist) return true;
             }
         }
         return false;
@@ -91,8 +129,8 @@ public class MantleJigsawComponent extends IrisMantleComponent {
     @ChunkCoordinates
     public IrisJigsawStructure guess(int x, int z) {
         // todo The guess doesnt bring into account that the placer may return -1
-        boolean t = false;
-        RNG rng = new RNG(cng.fit(-Integer.MAX_VALUE, Integer.MAX_VALUE, x, z));
+        // todo doesnt bring skipped placements into account
+        long seed = cng.fit(Integer.MIN_VALUE, Integer.MIN_VALUE, x, z);
         IrisBiome biome = getEngineMantle().getEngine().getSurfaceBiome((x << 4) + 8, (z << 4) + 8);
         IrisRegion region = getEngineMantle().getEngine().getRegion((x << 4) + 8, (z << 4) + 8);
 
@@ -108,29 +146,26 @@ public class MantleJigsawComponent extends IrisMantleComponent {
             }
         }
 
-        for (IrisJigsawStructurePlacement i : biome.getJigsawStructures()) {
-            if (rng.nextInt(i.getRarity()) == 0) {
-                return getData().getJigsawStructureLoader().load(i.getStructure());
-            }
-        }
+        IrisJigsawStructurePlacement i = pick(biome.getJigsawStructures(), seed, x, z);
+        if (i == null) i = pick(region.getJigsawStructures(), seed, x, z);
+        if (i == null) i = pick(getDimension().getJigsawStructures(), seed, x, z);
+        return i != null ? getData().getJigsawStructureLoader().load(i.getStructure()) : null;
+    }
 
-        for (IrisJigsawStructurePlacement i : region.getJigsawStructures()) {
-            if (rng.nextInt(i.getRarity()) == 0) {
-                return getData().getJigsawStructureLoader().load(i.getStructure());
-            }
-        }
-
-        for (IrisJigsawStructurePlacement i : getDimension().getJigsawStructures()) {
-            if (rng.nextInt(i.getRarity()) == 0) {
-                return getData().getJigsawStructureLoader().load(i.getStructure());
-            }
-        }
-
-        return null;
+    @Nullable
+    @ChunkCoordinates
+    private IrisJigsawStructurePlacement pick(List<IrisJigsawStructurePlacement> structures, long seed, int x, int z) {
+        return IRare.pick(structures.stream()
+                .filter(p -> p.shouldPlace(jigsaw(), x, z))
+                .toList(), new RNG(seed).nextDouble());
     }
 
     @BlockCoordinates
-    private void place(MantleWriter writer, IrisPosition position, IrisJigsawStructure structure, RNG rng) {
-        new PlannedStructure(structure, position, rng).place(writer, getMantle(), writer.getEngine());
+    private boolean place(MantleWriter writer, IrisPosition position, IrisJigsawStructure structure, RNG rng) {
+        return new PlannedStructure(structure, position, rng).place(writer, getMantle(), writer.getEngine());
+    }
+
+    private long jigsaw() {
+        return getEngineMantle().getEngine().getSeedManager().getJigsaw();
     }
 }

core/src/main/java/com/volmit/iris/engine/object/IrisBiome.java

@@ -194,13 +194,14 @@ public class IrisBiome extends IrisRegistrant implements IRare {
         return getCustomDerivitives() != null && getCustomDerivitives().isNotEmpty();
     }
 
-    public double getGenLinkMax(String loadKey) {
+    public double getGenLinkMax(String loadKey, Engine engine) {
         Integer v = genCacheMax.aquire(() ->
         {
             KMap<String, Integer> l = new KMap<>();
 
             for (IrisBiomeGeneratorLink i : getGenerators()) {
-                l.put(i.getGenerator(), i.getMax());
+                l.put(i.getGenerator(), i.getMax(engine));
+
             }
 
             return l;
@@ -209,13 +210,13 @@ public class IrisBiome extends IrisRegistrant implements IRare {
         return v == null ? 0 : v;
     }
 
-    public double getGenLinkMin(String loadKey) {
+    public double getGenLinkMin(String loadKey, Engine engine) {
         Integer v = genCacheMin.aquire(() ->
         {
             KMap<String, Integer> l = new KMap<>();
 
             for (IrisBiomeGeneratorLink i : getGenerators()) {
-                l.put(i.getGenerator(), i.getMin());
+                l.put(i.getGenerator(), i.getMin(engine));
             }
 
             return l;
@@ -450,26 +451,26 @@ public class IrisBiome extends IrisRegistrant implements IRare {
         return real;
     }
 
-    public int getMaxHeight() {
+    public int getMaxHeight(Engine engine) {
         return maxHeight.aquire(() ->
         {
             int maxHeight = 0;
 
             for (IrisBiomeGeneratorLink i : getGenerators()) {
-                maxHeight += i.getMax();
+                maxHeight += i.getMax(engine);
             }
 
             return maxHeight;
         });
     }
 
-    public int getMaxWithObjectHeight(IrisData data) {
+    public int getMaxWithObjectHeight(IrisData data, Engine engine) {
         return maxWithObjectHeight.aquire(() ->
         {
             int maxHeight = 0;
 
             for (IrisBiomeGeneratorLink i : getGenerators()) {
-                maxHeight += i.getMax();
+                maxHeight += i.getMax(engine);
             }
 
             int gg = 0;

core/src/main/java/com/volmit/iris/engine/object/IrisBiomeCustom.java

@@ -19,6 +19,7 @@
 package com.volmit.iris.engine.object;
 
 import com.volmit.iris.Iris;
+import com.volmit.iris.core.nms.datapack.IDataFixer;
 import com.volmit.iris.engine.object.annotations.*;
 import com.volmit.iris.util.collection.KList;
 import com.volmit.iris.util.collection.KMap;
@@ -68,8 +69,10 @@ public class IrisBiomeCustom {
     @Desc("The biome's category type")
     private IrisBiomeCustomCategory category = IrisBiomeCustomCategory.plains;
 
+    @MinNumber(0)
+    @MaxNumber(20)
     @Desc("The spawn rarity of any defined spawners")
-    private int spawnRarity = -1;
+    private int spawnRarity = 0;
 
     @Desc("The color of the sky, top half of sky. (hex format)")
     private String skyColor = "#79a8e1";
@@ -89,7 +92,7 @@ public class IrisBiomeCustom {
     @Desc("The color of foliage (hex format). Leave blank / don't define to not change")
     private String foliageColor = "";
 
-    public String generateJson() {
+    public String generateJson(IDataFixer fixer) {
         JSONObject effects = new JSONObject();
         effects.put("sky_color", parseColor(getSkyColor()));
         effects.put("fog_color", parseColor(getFogColor()));
@@ -155,7 +158,7 @@ public class IrisBiomeCustom {
             j.put("spawners", spawners);
         }
 
-        return j.toString(4);
+        return fixer.fixCustomBiome(this, j).toString(4);
     }
 
     private int parseColor(String c) {

core/src/main/java/com/volmit/iris/engine/object/IrisBiomeGeneratorLink.java

@@ -18,14 +18,13 @@
 
 package com.volmit.iris.engine.object;
 
-import com.volmit.iris.core.IrisSettings;
+import com.volmit.iris.Iris;
 import com.volmit.iris.engine.data.cache.AtomicCache;
+import com.volmit.iris.engine.framework.Engine;
 import com.volmit.iris.engine.object.annotations.*;
 import com.volmit.iris.util.data.DataProvider;
 import com.volmit.iris.util.interpolation.IrisInterpolation;
-import lombok.AllArgsConstructor;
-import lombok.Data;
-import lombok.NoArgsConstructor;
+import lombok.*;
 import lombok.experimental.Accessors;
 
 @Snippet("generator-layer")
@@ -40,22 +39,23 @@ public class IrisBiomeGeneratorLink {
     @RegistryListResource(IrisGenerator.class)
     @Desc("The generator id")
     private String generator = "default";
-    @DependsOn({"min", "max"})
+    @DependsOn({ "min", "max" })
     @Required
     @MinNumber(-2032) // TODO: WARNING HEIGHT
     @MaxNumber(2032) // TODO: WARNING HEIGHT
     @Desc("The min block value (value + fluidHeight)")
+    @Getter(AccessLevel.NONE)
     private int min = 0;
-    @DependsOn({"min", "max"})
+    @DependsOn({ "min", "max" })
     @Required
     @MinNumber(-2032) // TODO: WARNING HEIGHT
     @MaxNumber(2032) // TODO: WARNING HEIGHT
+    @Getter(AccessLevel.NONE)
     @Desc("The max block value (value + fluidHeight)")
     private int max = 0;
 
     public IrisGenerator getCachedGenerator(DataProvider g) {
-        return gen.aquire(() ->
-        {
+        return gen.aquire(() -> {
             IrisGenerator gen = g.getData().getGeneratorLoader().load(getGenerator());
 
             if (gen == null) {
@@ -66,21 +66,74 @@ public class IrisBiomeGeneratorLink {
         });
     }
 
+    private int[] getBiomeGeneratorsRaw(Engine engine) {
+        int max = engine.getDimension().getMinHeight();
+        int min = engine.getDimension().getMaxHeight();
+        for (IrisBiome biome : engine.getAllBiomes()) {
+            for (IrisBiomeGeneratorLink i : biome.getGenerators()) {
+                int biomeRawMax = i.getMaxRaw();
+                int biomeRawMin = i.getMinRaw();
+                if (max < biomeRawMax)
+                    max = biomeRawMax;
+                if (min > biomeRawMin)
+                    min = biomeRawMin;
+            }
+        }
+
+        return new int[] { min, max };
+    }
+
+    private int calculateHeight(Engine engine, int option) {
+        int dmx = engine.getDimension().getMaxHeight();
+        int dmn = engine.getDimension().getMinHeight();
+        int[] heights = getBiomeGeneratorsRaw(engine);
+        int gmx = heights[1];
+        int gmn = heights[0];
+
+        int mx = getMaxRaw();
+        int mn = getMinRaw();
+        if (engine.getDimension().isSmartVanillaHeight()) {
+            if (mx > 0)
+                mx = Math.min((int) (((float) mx / (float) gmx) * 300.0f), 300);
+            if (mx < 0)
+                mx = Math.min((int) (((float) mx / (float) gmn) * 300.0f), 56);
+
+            if (mn > 0)
+                mn = Math.min((int) (((float) mn / (float) gmx) * 300.0f), 300);
+            if (mn < 0)
+                mn = Math.min((int) (((float) mn / (float) gmn) * 300.0f), 56);
+        }
+
+        if (option == 1) {
+            return mx;
+        }
+        if (option == 0) {
+            return mn;
+        }
+        Iris.error("Fatal Generator error!");
+        return 0;
+    }
+
+    public int getMax(Engine engine) {
+        return calculateHeight(engine, 1);
+    }
+
+    public int getMin(Engine engine) {
+        return calculateHeight(engine, 0);
+    }
+
+    private int getMaxRaw() {
+        return max;
+    }
+
+    private int getMinRaw() {
+        return min;
+    }
+
     public double getHeight(DataProvider xg, double x, double z, long seed) {
         double g = getCachedGenerator(xg).getHeight(x, z, seed);
         g = g < 0 ? 0 : g;
         g = g > 1 ? 1 : g;
-//        if (IrisSettings.get().getGenerator().forceConvertTo320Height) {
-//           if (max > 320 || min > 320) {
-//                double scaleFactor = 320.0 / Math.max(max, min);
-//                min *= (int) scaleFactor;
-//                max *= (int) scaleFactor;
-//                if (min < 0) {
-//
-//                }
-//            }
-//        }
-        // todo This
 
         return IrisInterpolation.lerp(min, max, g);
     }

core/src/main/java/com/volmit/iris/engine/object/IrisDimension.java

@@ -21,12 +21,11 @@ package com.volmit.iris.engine.object;
 import com.volmit.iris.Iris;
 import com.volmit.iris.core.loader.IrisData;
 import com.volmit.iris.core.loader.IrisRegistrant;
+import com.volmit.iris.core.nms.datapack.IDataFixer;
 import com.volmit.iris.engine.data.cache.AtomicCache;
-import com.volmit.iris.engine.framework.Engine;
 import com.volmit.iris.engine.object.annotations.*;
 import com.volmit.iris.util.collection.KList;
 import com.volmit.iris.util.data.DataProvider;
-import com.volmit.iris.util.data.Dimension;
 import com.volmit.iris.util.io.IO;
 import com.volmit.iris.util.json.JSONObject;
 import com.volmit.iris.util.math.Position2;
@@ -42,7 +41,6 @@ import org.bukkit.Material;
 import org.bukkit.World.Environment;
 import org.bukkit.block.data.BlockData;
 
-import java.io.DataInput;
 import java.io.File;
 import java.io.IOException;
 
@@ -210,6 +208,8 @@ public class IrisDimension extends IrisRegistrant {
     private IrisCarving carving = new IrisCarving();
     @Desc("Configuration of fluid bodies such as rivers & lakes")
     private IrisFluidBodies fluidBodies = new IrisFluidBodies();
+    @Desc("forceConvertTo320Height")
+    private Boolean forceConvertTo320Height = false;
     @Desc("The world environment")
     private Environment environment = Environment.NORMAL;
     @RegistryListResource(IrisRegion.class)
@@ -231,6 +231,8 @@ public class IrisDimension extends IrisRegistrant {
     private IrisRange dimensionHeightEnd = new IrisRange(-64, 320);
     @Desc("Define the min and max Y bounds of this dimension. Please keep in mind that Iris internally generates from 0 to (max - min). \n\nFor example at -64 to 320, Iris is internally generating to 0 to 384, then on outputting chunks, it shifts it down by the min height (64 blocks). The default is -64 to 320. \n\nThe fluid height is placed at (fluid height + min height). So a fluid height of 63 would actually show up in the world at 1.")
     private IrisRange dimensionHeightNether = new IrisRange(-64, 320);
+    @Desc("Enable smart vanilla height")
+    private boolean smartVanillaHeight = false;
     @RegistryListResource(IrisBiome.class)
     @Desc("Keep this either undefined or empty. Setting any biome name into this will force iris to only generate the specified biome. Great for testing.")
     private String focus = "";
@@ -442,7 +444,7 @@ public class IrisDimension extends IrisRegistrant {
         return landBiomeStyle;
     }
 
-    public boolean installDataPack(DataProvider data, File datapacks, double ultimateMaxHeight, double ultimateMinHeight) {
+    public boolean installDataPack(IDataFixer fixer, DataProvider data, File datapacks, double ultimateMaxHeight, double ultimateMinHeight) {
         boolean write = false;
         boolean changed = false;
 
@@ -462,7 +464,7 @@ public class IrisDimension extends IrisRegistrant {
                     Iris.verbose("    Installing Data Pack Biome: " + output.getPath());
                     output.getParentFile().mkdirs();
                     try {
-                        IO.writeAll(output, j.generateJson());
+                        IO.writeAll(output, j.generateJson(fixer));
                     } catch (IOException e) {
                         Iris.reportError(e);
                         e.printStackTrace();
@@ -475,7 +477,7 @@ public class IrisDimension extends IrisRegistrant {
             Iris.verbose("    Installing Data Pack Dimension Types: \"minecraft:overworld\", \"minecraft:the_nether\", \"minecraft:the_end\"");
             dimensionHeight.setMax(ultimateMaxHeight);
             dimensionHeight.setMin(ultimateMinHeight);
-            changed = writeDimensionType(changed, datapacks);
+            changed = writeDimensionType(fixer, changed, datapacks);
         }
 
         if (write) {
@@ -514,13 +516,13 @@ public class IrisDimension extends IrisRegistrant {
 
     }
 
-    public boolean writeDimensionType(boolean changed, File datapacks) {
+    public boolean writeDimensionType(IDataFixer fixer, boolean changed, File datapacks) {
         File dimTypeOverworld = new File(datapacks, "iris/data/minecraft/dimension_type/overworld.json");
         if (!dimTypeOverworld.exists())
             changed = true;
         dimTypeOverworld.getParentFile().mkdirs();
         try {
-            IO.writeAll(dimTypeOverworld, generateDatapackJsonOverworld());
+            IO.writeAll(dimTypeOverworld, generateDatapackJsonOverworld(fixer));
         } catch (IOException e) {
             Iris.reportError(e);
             e.printStackTrace();
@@ -532,7 +534,7 @@ public class IrisDimension extends IrisRegistrant {
             changed = true;
         dimTypeNether.getParentFile().mkdirs();
         try {
-            IO.writeAll(dimTypeNether, generateDatapackJsonNether());
+            IO.writeAll(dimTypeNether, generateDatapackJsonNether(fixer));
         } catch (IOException e) {
             Iris.reportError(e);
             e.printStackTrace();
@@ -544,7 +546,7 @@ public class IrisDimension extends IrisRegistrant {
             changed = true;
         dimTypeEnd.getParentFile().mkdirs();
         try {
-            IO.writeAll(dimTypeEnd, generateDatapackJsonEnd());
+            IO.writeAll(dimTypeEnd, generateDatapackJsonEnd(fixer));
         } catch (IOException e) {
             Iris.reportError(e);
             e.printStackTrace();
@@ -553,27 +555,27 @@ public class IrisDimension extends IrisRegistrant {
         return changed;
     }
 
-    private String generateDatapackJsonOverworld() {
+    private String generateDatapackJsonOverworld(IDataFixer fixer) {
         JSONObject obj = new JSONObject(DP_OVERWORLD_DEFAULT);
         obj.put("min_y", dimensionHeight.getMin());
         obj.put("height", dimensionHeight.getMax() - dimensionHeight.getMin());
         obj.put("logical_height", logicalHeight);
-        return obj.toString(4);
+        return fixer.fixDimension(obj).toString(4);
     }
 
-    private String generateDatapackJsonNether() {
+    private String generateDatapackJsonNether(IDataFixer fixer) {
         JSONObject obj = new JSONObject(DP_NETHER_DEFAULT);
         obj.put("min_y", dimensionHeightNether.getMin());
         obj.put("height", dimensionHeightNether.getMax() - dimensionHeightNether.getMin());
         obj.put("logical_height", logicalHeightNether);
-        return obj.toString(4);
+        return fixer.fixDimension(obj).toString(4);
     }
 
-    private String generateDatapackJsonEnd() {
+    private String generateDatapackJsonEnd(IDataFixer fixer) {
         JSONObject obj = new JSONObject(DP_END_DEFAULT);
         obj.put("min_y", dimensionHeightEnd.getMin());
         obj.put("height", dimensionHeightEnd.getMax() - dimensionHeightEnd.getMin());
         obj.put("logical_height", logicalHeightEnd);
-        return obj.toString(4);
+        return fixer.fixDimension(obj).toString(4);
     }
 }

core/src/main/java/com/volmit/iris/engine/object/IrisEntity.java

@@ -29,6 +29,7 @@ import com.volmit.iris.util.format.C;
 import com.volmit.iris.util.json.JSONObject;
 import com.volmit.iris.util.math.M;
 import com.volmit.iris.util.math.RNG;
+import com.volmit.iris.util.misc.E;
 import com.volmit.iris.util.plugin.Chunks;
 import com.volmit.iris.util.plugin.VolmitSender;
 import com.volmit.iris.util.scheduling.J;
@@ -65,6 +66,7 @@ import java.util.concurrent.atomic.AtomicReference;
 @Data
 @EqualsAndHashCode(callSuper = false)
 public class IrisEntity extends IrisRegistrant {
+    private static final Particle ITEM = E.getOrDefault(Particle.class, "ITEM_CRACK", "ITEM");
     @Required
     @Desc("The type of entity to spawn. To spawn a mythic mob, set this type to unknown and define mythic type.")
     private EntityType type = EntityType.UNKNOWN;
@@ -386,7 +388,7 @@ public class IrisEntity extends IrisRegistrant {
                     if (e.getLocation().getBlock().getType().isSolid() || ((LivingEntity) e).getEyeLocation().getBlock().getType().isSolid()) {
                         e.teleport(start.add(new Vector(0, 0.1, 0)));
                         ItemStack itemCrackData = new ItemStack(((LivingEntity) e).getEyeLocation().clone().subtract(0, 2, 0).getBlock().getBlockData().getMaterial());
-                        e.getWorld().spawnParticle(Particle.ITEM_CRACK, ((LivingEntity) e).getEyeLocation(), 6, 0.2, 0.4, 0.2, 0.06f, itemCrackData);
+                        e.getWorld().spawnParticle(ITEM, ((LivingEntity) e).getEyeLocation(), 6, 0.2, 0.4, 0.2, 0.06f, itemCrackData);
                         if (M.r(0.2)) {
                             e.getWorld().playSound(e.getLocation(), Sound.BLOCK_CHORUS_FLOWER_GROW, 0.8f, 0.1f);
                         }

core/src/main/java/com/volmit/iris/engine/object/IrisJigsawMinDistance.java

@@ -0,0 +1,29 @@
+package com.volmit.iris.engine.object;
+
+import com.volmit.iris.engine.object.annotations.Desc;
+import com.volmit.iris.engine.object.annotations.MinNumber;
+import com.volmit.iris.engine.object.annotations.RegistryListResource;
+import com.volmit.iris.engine.object.annotations.Required;
+import com.volmit.iris.engine.object.annotations.Snippet;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import lombok.experimental.Accessors;
+
+@Snippet("jigsaw-structure-min-distance")
+@Accessors(chain = true)
+@NoArgsConstructor
+@AllArgsConstructor
+@Desc("Represents the min distance between jigsaw structure placements")
+@Data
+public class IrisJigsawMinDistance {
+    @Required
+    @RegistryListResource(IrisJigsawStructure.class)
+    @Desc("The structure to check against")
+    private String structure;
+
+    @Required
+    @MinNumber(0)
+    @Desc("The min distance in blocks to a placed structure\nWARNING: The performance impact scales exponentially!")
+    private int distance;
+}

core/src/main/java/com/volmit/iris/engine/object/IrisJigsawPiece.java

@@ -101,19 +101,12 @@ public class IrisJigsawPiece extends IrisRegistrant {
     }
 
     public IrisJigsawPiece copy() {
-        IrisJigsawPiece p = new IrisJigsawPiece();
-        p.setObject(getObject());
-        p.setLoader(getLoader());
-        p.setLoadKey(getLoadKey());
-        p.setLoadFile(getLoadFile());
-        p.setConnectors(new KList<>());
-        p.setPlacementOptions(getPlacementOptions());
-
-        for (IrisJigsawPieceConnector i : getConnectors()) {
-            p.getConnectors().add(i.copy());
-        }
-
-        return p;
+        var gson = getLoader().getGson();
+        IrisJigsawPiece copy = gson.fromJson(gson.toJson(this), IrisJigsawPiece.class);
+        copy.setLoader(getLoader());
+        copy.setLoadKey(getLoadKey());
+        copy.setLoadFile(getLoadFile());
+        return copy;
     }
 
     public boolean isTerminal() {

core/src/main/java/com/volmit/iris/engine/object/IrisJigsawPieceConnector.java

@@ -79,6 +79,9 @@ public class IrisJigsawPieceConnector {
     @Required
     private IrisDirection direction = IrisDirection.UP_POSITIVE_Y;
 
+    @Desc("Lock the Y position of this connector")
+    private boolean lockY = false;
+
     public String toString() {
         return direction.getFace().name() + "@(" + position.getX() + "," + position.getY() + "," + position.getZ() + ")";
     }

core/src/main/java/com/volmit/iris/engine/object/IrisJigsawStructure.java

@@ -56,6 +56,10 @@ public class IrisJigsawStructure extends IrisRegistrant {
     @Desc("If set to true, iris will look for any pieces with only one connector in valid pools for edge connectors and attach them to 'terminate' the paths/piece connectors. Essentially it caps off ends. For example in a village, Iris would add houses to the ends of roads where possible. For terminators to be selected, they can only have one connector or they wont be chosen.")
     private boolean terminate = true;
 
+    @RegistryListResource(IrisJigsawPool.class)
+    @Desc("The pool to use when terminating pieces")
+    private String terminatePool = null;
+
     @Desc("Override the y range instead of placing on the height map")
     private IrisStyledRange overrideYRange = null;
 

core/src/main/java/com/volmit/iris/engine/object/IrisJigsawStructurePlacement.java

@@ -18,17 +18,24 @@
 
 package com.volmit.iris.engine.object;
 
+import com.volmit.iris.Iris;
+import com.volmit.iris.engine.object.annotations.ArrayType;
 import com.volmit.iris.engine.object.annotations.Desc;
+import com.volmit.iris.engine.object.annotations.MaxNumber;
+import com.volmit.iris.engine.object.annotations.MinNumber;
 import com.volmit.iris.engine.object.annotations.RegistryListResource;
 import com.volmit.iris.engine.object.annotations.Required;
 import com.volmit.iris.engine.object.annotations.Snippet;
+import com.volmit.iris.util.collection.KList;
+import com.volmit.iris.util.collection.KMap;
+import com.volmit.iris.util.documentation.ChunkCoordinates;
+import com.volmit.iris.util.math.RNG;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
 import lombok.NoArgsConstructor;
 import lombok.experimental.Accessors;
 
-
 @Snippet("jigsaw-structure-placement")
 @Accessors(chain = true)
 @NoArgsConstructor
@@ -36,13 +43,99 @@ import lombok.experimental.Accessors;
 @Desc("Represents a jigsaw structure placer")
 @Data
 @EqualsAndHashCode(callSuper = false)
-public class IrisJigsawStructurePlacement {
+public class IrisJigsawStructurePlacement implements IRare {
     @RegistryListResource(IrisJigsawStructure.class)
     @Required
     @Desc("The structure to place")
     private String structure;
 
     @Required
-    @Desc("The 1 in X chance rarity")
+    @Desc("The 1 in X chance rarity applies when generating multiple structures at once")
     private int rarity = 100;
+
+    @Required
+    @Desc("The salt to use when generating the structure (to differentiate structures)")
+    @MinNumber(Long.MIN_VALUE)
+    @MaxNumber(Long.MAX_VALUE)
+    private long salt = 0;
+
+    @Required
+    @MinNumber(0)
+    @Desc("Average distance in chunks between two neighboring generation attempts")
+    private int spacing = -1;
+
+    @Required
+    @MinNumber(0)
+    @Desc("Minimum distance in chunks between two neighboring generation attempts\nThe maximum distance of two neighboring generation attempts is 2*spacing - separation")
+    private int separation = -1;
+
+    @Desc("The method used to spread the structure")
+    private SpreadType spreadType = SpreadType.TRIANGULAR;
+
+    @ArrayType(type = IrisJigsawMinDistance.class)
+    @Desc("List of minimum distances to check for")
+    private KList<IrisJigsawMinDistance> minDistances = new KList<>();
+
+    public KMap<String, Integer> collectMinDistances() {
+        KMap<String, Integer> map = new KMap<>();
+        for (IrisJigsawMinDistance d : minDistances) {
+            map.compute(d.getStructure(), (k, v) -> v != null ? Math.min(toChunks(d.getDistance()), v) : toChunks(d.getDistance()));
+        }
+        return map;
+    }
+
+    private int toChunks(int blocks) {
+        return (int) Math.ceil(blocks / 16d);
+    }
+
+    private void calculateMissing(long seed) {
+        seed = seed + hashCode();
+        if (salt == 0) {
+            salt = new RNG(seed).nextLong(Integer.MIN_VALUE, Integer.MAX_VALUE);
+        }
+
+        if (separation == -1 || spacing == -1) {
+            separation = (int) Math.round(rarity / 15d);
+            spacing = new RNG(seed).nextInt(separation, separation * 2);
+        }
+    }
+
+    @ChunkCoordinates
+    public boolean shouldPlace(long seed, int x, int z) {
+        calculateMissing(seed);
+        if (separation > spacing) {
+            separation = spacing;
+            Iris.warn("JigsawStructurePlacement: separation must be less than or equal to spacing");
+        }
+
+        int i = Math.floorDiv(x, spacing);
+        int j = Math.floorDiv(z, spacing);
+        RNG rng = new RNG(i * 341873128712L + j * 132897987541L + seed + salt);
+
+        int k = spacing - separation;
+        int l = spreadType.apply(rng, k);
+        int m = spreadType.apply(rng, k);
+        return i * spacing + l == x && j * spacing + m == z;
+    }
+
+    @Desc("Spread type")
+    public enum SpreadType {
+        @Desc("Linear spread")
+        LINEAR(RNG::i),
+        @Desc("Triangular spread")
+        TRIANGULAR((rng, bound) -> (rng.i(bound) + rng.i(bound)) / 2);
+        private final SpreadMethod method;
+
+        SpreadType(SpreadMethod method) {
+            this.method = method;
+        }
+
+        public int apply(RNG rng, int bound) {
+            return method.apply(rng, bound);
+        }
+    }
+
+    private interface SpreadMethod {
+        int apply(RNG rng, int bound);
+    }
 }

core/src/main/java/com/volmit/iris/engine/object/IrisObjectPlacement.java

@@ -136,6 +136,8 @@ public class IrisObjectPlacement {
     @ArrayType(type = String.class)
     @Desc("List of objects to this object is forbidden to collied with")
     private KList<String> forbiddenCollisions = new KList<>();
+    @Desc("Ignore any placement restrictions for this object")
+    private boolean forcePlace = false;
     private transient AtomicCache<TableCache> cache = new AtomicCache<>();
 
     public IrisObjectPlacement toPlacement(String... place) {

core/src/main/java/com/volmit/iris/engine/object/IrisObjectRotation.java

@@ -101,6 +101,11 @@ public class IrisObjectRotation {
             i.setPosition(rotate(i.getPosition()));
             i.setDirection(rotate(i.getDirection()));
         }
+        try {
+            var translate = piece.getPlacementOptions().getTranslate();
+            var pos = rotate(new IrisPosition(translate.getX(), translate.getY(), translate.getZ()));
+            translate.setX(pos.getX()).setY(pos.getY()).setZ(pos.getZ());
+        } catch (NullPointerException ignored) {}
 
         return piece;
     }

core/src/main/java/com/volmit/iris/engine/platform/BukkitChunkGenerator.java

@@ -58,6 +58,8 @@ import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
 import java.lang.reflect.Field;
 import java.util.List;
 import java.util.Random;
@@ -82,6 +84,7 @@ public class BukkitChunkGenerator extends ChunkGenerator implements PlatformChun
     private final AtomicBoolean setup;
     private final boolean studio;
     private final AtomicInteger a = new AtomicInteger(0);
+    private final boolean smartVanillaHeight;
     private Engine engine;
     private Looper hotloader;
     private StudioMode lastMode;
@@ -91,7 +94,7 @@ public class BukkitChunkGenerator extends ChunkGenerator implements PlatformChun
 
     private boolean initialized = false;
 
-    public BukkitChunkGenerator(IrisWorld world, boolean studio, File dataLocation, String dimensionKey) {
+    public BukkitChunkGenerator(IrisWorld world, boolean studio, File dataLocation, String dimensionKey, boolean smartVanillaHeight) {
         setup = new AtomicBoolean(false);
         studioGenerator = null;
         dummyBiomeProvider = new DummyBiomeProvider();
@@ -103,6 +106,7 @@ public class BukkitChunkGenerator extends ChunkGenerator implements PlatformChun
         this.dataLocation = dataLocation;
         this.dimensionKey = dimensionKey;
         this.folder = new ReactiveFolder(dataLocation, (_a, _b, _c) -> hotload());
+        this.smartVanillaHeight = smartVanillaHeight;
         Bukkit.getServer().getPluginManager().registerEvents(this, Iris.instance);
     }
 
@@ -181,6 +185,14 @@ public class BukkitChunkGenerator extends ChunkGenerator implements PlatformChun
                 throw new RuntimeException("Missing Dimension: " + dimensionKey);
             }
         }
+        if (smartVanillaHeight) {
+            dimension.setSmartVanillaHeight(true);
+            try (FileWriter writer = new FileWriter(data.getDimensionLoader().fileFor(dimension))) {
+                writer.write(data.getGson().toJson(dimension));
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
 
         lastMode = StudioMode.NORMAL;
         engine = new IrisEngine(new EngineTarget(world, dimension, data), studio);

core/src/main/java/com/volmit/iris/util/data/B.java

@@ -25,6 +25,7 @@ import com.volmit.iris.core.service.ExternalDataSVC;
 import com.volmit.iris.engine.object.IrisCompat;
 import com.volmit.iris.util.collection.KList;
 import com.volmit.iris.util.collection.KMap;
+import com.volmit.iris.util.misc.E;
 import com.volmit.iris.util.scheduling.ChronoLatch;
 import it.unimi.dsi.fastutil.ints.*;
 import org.bukkit.Bukkit;
@@ -46,6 +47,7 @@ public class B {
     private static final KMap<String, BlockData> custom = new KMap<>();
 
     private static final Material AIR_MATERIAL = Material.AIR;
+    private static final Material SHORT_GRASS = E.getOrDefault(Material.class, "GRASS", "SHORT_GRASS");
     private static final BlockData AIR = AIR_MATERIAL.createBlockData();
     private static final IntSet foliageCache = buildFoliageCache();
     private static final IntSet deepslateCache = buildDeepslateCache();
@@ -85,7 +87,7 @@ public class B {
                 WHITE_TULIP,
                 FERN,
                 LARGE_FERN,
-                GRASS,
+                SHORT_GRASS,
                 TALL_GRASS
         }).forEach((i) -> b.add(i.ordinal()));
 
@@ -143,7 +145,7 @@ public class B {
     private static IntSet buildDecorantCache() {
         IntSet b = new IntOpenHashSet();
         Arrays.stream(new Material[]{
-                GRASS,
+                SHORT_GRASS,
                 TALL_GRASS,
                 TALL_SEAGRASS,
                 FERN,

core/src/main/java/com/volmit/iris/util/data/IrisBlockData.java

@@ -15,7 +15,7 @@ import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 @Data
-public class IrisBlockData implements BlockData{
+public class IrisBlockData implements BlockData {
 	private final @NonNull BlockData base;
 	private final @NotNull Identifier custom;
 

core/src/main/java/com/volmit/iris/util/decree/handlers/DataVersionHandler.java

@@ -0,0 +1,36 @@
+package com.volmit.iris.util.decree.handlers;
+
+import com.volmit.iris.core.nms.datapack.DataVersion;
+import com.volmit.iris.util.collection.KList;
+import com.volmit.iris.util.decree.DecreeParameterHandler;
+import com.volmit.iris.util.decree.exceptions.DecreeParsingException;
+
+public class DataVersionHandler implements DecreeParameterHandler<DataVersion> {
+    @Override
+    public KList<DataVersion> getPossibilities() {
+        return new KList<>(DataVersion.values());
+    }
+
+    @Override
+    public String toString(DataVersion version) {
+        return version.getVersion();
+    }
+
+    @Override
+    public DataVersion parse(String in, boolean force) throws DecreeParsingException {
+        if (in.equalsIgnoreCase("latest")) {
+            return DataVersion.getLatest();
+        }
+        for (DataVersion v : DataVersion.values()) {
+            if (v.getVersion().equalsIgnoreCase(in)) {
+                return v;
+            }
+        }
+        throw new DecreeParsingException("Unable to parse data version \"" + in + "\"");
+    }
+
+    @Override
+    public boolean supports(Class<?> type) {
+        return DataVersion.class.equals(type);
+    }
+}

core/src/main/java/com/volmit/iris/util/inventorygui/UIElement.java

@@ -212,7 +212,7 @@ public class UIElement implements Element {
             im.setLore(getLore().copy());
 
             if (isEnchanted()) {
-                im.addEnchant(Enchantment.DURABILITY, 1, true);
+                im.addEnchant(Enchantment.FIRE_ASPECT, 1, true);
             }
 
             is.setItemMeta(im);

core/src/main/java/com/volmit/iris/util/matter/slices/JigsawStructuresMatter.java

@@ -0,0 +1,35 @@
+package com.volmit.iris.util.matter.slices;
+
+import com.volmit.iris.util.data.palette.Palette;
+import com.volmit.iris.util.matter.Sliced;
+import com.volmit.iris.util.matter.slices.container.JigsawStructuresContainer;
+
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+
+@Sliced
+public class JigsawStructuresMatter extends RawMatter<JigsawStructuresContainer> {
+    public JigsawStructuresMatter() {
+        this(1, 1, 1);
+    }
+
+    public JigsawStructuresMatter(int width, int height, int depth) {
+        super(width, height, depth, JigsawStructuresContainer.class);
+    }
+
+    @Override
+    public Palette<JigsawStructuresContainer> getGlobalPalette() {
+        return null;
+    }
+
+    @Override
+    public void writeNode(JigsawStructuresContainer b, DataOutputStream dos) throws IOException {
+        b.write(dos);
+    }
+
+    @Override
+    public JigsawStructuresContainer readNode(DataInputStream din) throws IOException {
+        return new JigsawStructuresContainer(din);
+    }
+}

core/src/main/java/com/volmit/iris/util/matter/slices/container/JigsawStructuresContainer.java

@@ -0,0 +1,62 @@
+package com.volmit.iris.util.matter.slices.container;
+
+import com.volmit.iris.engine.object.IrisJigsawStructure;
+import com.volmit.iris.util.collection.KList;
+import com.volmit.iris.util.collection.KMap;
+import com.volmit.iris.util.documentation.ChunkCoordinates;
+import com.volmit.iris.util.math.Position2;
+import org.jetbrains.annotations.Unmodifiable;
+
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+public class JigsawStructuresContainer {
+    private final Map<String, List<Position2>> map = new KMap<>();
+
+    public JigsawStructuresContainer() {}
+
+    public JigsawStructuresContainer(DataInputStream din) throws IOException {
+        int s0 = din.readInt();
+        for (int i = 0; i < s0; i++) {
+            int s1 = din.readInt();
+            KList<Position2> list = new KList<>(s1);
+            for (int j = 0; j < s1; j++) {
+                list.add(new Position2(din.readInt(), din.readInt()));
+            }
+            map.put(din.readUTF(), list);
+        }
+    }
+
+    public void write(DataOutputStream dos) throws IOException {
+        dos.writeInt(map.size());
+        for (String key : map.keySet()) {
+            List<Position2> list = map.get(key);
+            dos.writeInt(list.size());
+            for (Position2 pos : list) {
+                dos.writeInt(pos.getX());
+                dos.writeInt(pos.getZ());
+            }
+            dos.writeUTF(key);
+        }
+    }
+
+    @Unmodifiable
+    public Set<String> getStructures() {
+        return Collections.unmodifiableSet(map.keySet());
+    }
+
+    @Unmodifiable
+    public List<Position2> getPositions(String structure) {
+        return Collections.unmodifiableList(map.get(structure));
+    }
+
+    @ChunkCoordinates
+    public void add(IrisJigsawStructure structure, Position2 pos) {
+        map.computeIfAbsent(structure.getLoadKey(), k -> new KList<>()).add(pos);
+    }
+}

core/src/main/java/com/volmit/iris/util/misc/E.java

@@ -0,0 +1,12 @@
+package com.volmit.iris.util.misc;
+
+public class E {
+
+    public static <T extends Enum<T>> T getOrDefault(Class<T> enumClass, String name, String fallback) {
+        try {
+            return Enum.valueOf(enumClass, name);
+        } catch (Throwable e) {
+            return Enum.valueOf(enumClass, fallback);
+        }
+    }
+}

core/src/main/java/com/volmit/iris/util/misc/Hastebin.java

@@ -0,0 +1,135 @@
+package com.volmit.iris.util.misc;
+
+import com.volmit.iris.Iris;
+import com.volmit.iris.core.tools.IrisToolbelt;
+import com.volmit.iris.engine.framework.Engine;
+import com.volmit.iris.util.collection.KList;
+import com.volmit.iris.util.format.C;
+import com.volmit.iris.util.format.Form;
+import net.md_5.bungee.api.chat.ClickEvent;
+import net.md_5.bungee.api.chat.TextComponent;
+import org.bukkit.Bukkit;
+import org.bukkit.World;
+import org.bukkit.command.CommandSender;
+import oshi.SystemInfo;
+
+import java.io.BufferedReader;
+import java.io.DataOutputStream;
+import java.io.File;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.nio.file.Files;
+import java.util.List;
+
+public class Hastebin {
+
+    public static void enviornment(CommandSender sender) {
+        // Construct the server information
+        StringBuilder sb = new StringBuilder();
+        SystemInfo systemInfo = new SystemInfo();
+        KList<String> disks = new KList<>(getHardware.getDisk());
+        KList<String> interfaces = new KList<>(getHardware.getInterfaces());
+        KList<String> displays = new KList<>(getHardware.getEDID());
+        KList<String> sensors = new KList<>(getHardware.getSensors());
+        KList<String> gpus = new KList<>(getHardware.getGraphicsCards());
+        KList<String> powersources = new KList<>(getHardware.getPowerSources());
+
+        KList<World> IrisWorlds = new KList<>();
+        KList<World> BukkitWorlds = new KList<>();
+
+        for (World w : Bukkit.getServer().getWorlds()) {
+            try {
+                Engine engine = IrisToolbelt.access(w).getEngine();
+                if (engine != null) {
+                    IrisWorlds.add(w);
+                }
+            } catch (Exception e) {
+                BukkitWorlds.add(w);
+            }
+        }
+
+        sb.append(" -- == Iris Info == -- \n");
+        sb.append("Iris Version Version: ").append(Iris.instance.getDescription().getVersion()).append("\n");
+        sb.append("- Iris Worlds");
+        for (World w : IrisWorlds.copy()) {
+            sb.append(" - ").append(w.getName());
+        }
+        sb.append("- Bukkit Worlds");
+        for (World w : BukkitWorlds.copy()) {
+            sb.append(" - ").append(w.getName());
+        }
+        sb.append(" -- == Platform Overview == -- " + "\n");
+        sb.append("Server Type: ").append(Bukkit.getVersion()).append("\n");
+        sb.append("Server Uptime: ").append(Form.stampTime(systemInfo.getOperatingSystem().getSystemUptime())).append("\n");
+        sb.append("Version: ").append(Platform.getVersion()).append(" - Platform: ").append(Platform.getName()).append("\n");
+        sb.append("Java Vendor: ").append(Platform.ENVIRONMENT.getJavaVendor()).append(" - Java Version: ").append(Platform.ENVIRONMENT.getJavaVersion()).append("\n");
+        sb.append(" -- == Processor Overview == -- " + "\n");
+        sb.append("CPU Model: ").append(getHardware.getCPUModel());
+        sb.append("CPU Architecture: ").append(Platform.CPU.getArchitecture()).append(" Available Processors: ").append(Platform.CPU.getAvailableProcessors()).append("\n");
+        sb.append("CPU Load: ").append(Form.pc(Platform.CPU.getCPULoad())).append(" CPU Live Process Load: ").append(Form.pc(Platform.CPU.getLiveProcessCPULoad())).append("\n");
+        sb.append("-=" + " Graphics " + "=- " + "\n");
+        for (String gpu : gpus) {
+            sb.append(" ").append(gpu).append("\n");
+        }
+        sb.append(" -- == Memory Information == -- " + "\n");
+        sb.append("Physical Memory - Total: ").append(Form.memSize(Platform.MEMORY.PHYSICAL.getTotalMemory())).append(" Free: ").append(Form.memSize(Platform.MEMORY.PHYSICAL.getFreeMemory())).append(" Used: ").append(Form.memSize(Platform.MEMORY.PHYSICAL.getUsedMemory())).append("\n");
+        sb.append("Virtual Memory - Total: ").append(Form.memSize(Platform.MEMORY.VIRTUAL.getTotalMemory())).append(" Free: ").append(Form.memSize(Platform.MEMORY.VIRTUAL.getFreeMemory())).append(" Used: ").append(Form.memSize(Platform.MEMORY.VIRTUAL.getUsedMemory())).append("\n");
+        sb.append(" -- == Storage Information == -- " + "\n");
+        for (String disk : disks) {
+            sb.append(" ").append(sb.append(disk)).append("\n");
+        }
+        sb.append(" -- == Interface Information == -- "+ "\n" );
+        for (String inter : interfaces) {
+            sb.append(" ").append(inter).append("\n");
+        }
+        sb.append(" -- == Display Information == -- "+ "\n" );
+        for (String display : displays) {
+            sb.append(display).append("\n");
+        }
+        sb.append(" -- == Sensor Information == -- " + "\n");
+        for (String sensor : sensors) {
+            sb.append(" ").append(sensor).append("\n");
+        }
+        sb.append(" -- == Power Information == -- " + "\n");
+        for (String power : powersources) {
+            sb.append(" ").append(power).append("\n");
+        }
+
+        try {
+            String hastebinUrl = uploadToHastebin(sb.toString());
+
+            // Create the clickable message
+            TextComponent message = new TextComponent("[Link]");
+            TextComponent link = new TextComponent(hastebinUrl);
+            link.setClickEvent(new ClickEvent(ClickEvent.Action.OPEN_URL, hastebinUrl));
+            message.addExtra(link);
+
+            // Send the clickable message to the player
+            sender.spigot().sendMessage(message);
+        } catch (Exception e) {
+            sender.sendMessage(C.DARK_RED + "Failed to upload server information to Hastebin.");
+        }
+    }
+
+    private static String uploadToHastebin(String content) throws Exception {
+        URL url = new URL("https://paste.bytecode.ninja/documents");
+        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
+        conn.setRequestMethod("POST");
+        conn.setRequestProperty("Content-Type", "text/plain");
+        conn.setDoOutput(true);
+
+        DataOutputStream wr = new DataOutputStream(conn.getOutputStream());
+        wr.writeBytes(content);
+        wr.flush();
+        wr.close();
+
+        BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
+        String response = br.readLine();
+        br.close();
+
+        return "https://paste.bytecode.ninja/" + response.split("\"")[3];
+    }
+
+
+}

core/src/main/java/com/volmit/iris/util/misc/Platform.java

@@ -0,0 +1,145 @@
+package com.volmit.iris.util.misc;
+
+import com.sun.management.OperatingSystemMXBean;
+
+import java.io.File;
+import java.lang.management.ManagementFactory;
+
+@SuppressWarnings("restriction")
+public class Platform {
+    public static String getVersion() {
+        return getSystem().getVersion();
+    }
+
+    public static String getName() {
+        return getSystem().getName();
+    }
+
+    private static OperatingSystemMXBean getSystem() {
+        return (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean();
+    }
+
+    public static class ENVIRONMENT {
+        public static boolean canRunBatch() {
+            return getSystem().getName().toLowerCase().contains("windows");
+        }
+
+        public static String getJavaHome() {
+            return System.getProperty("java.home");
+        }
+
+        public static String getJavaVendor() {
+            return System.getProperty("java.vendor");
+        }
+
+        public static String getJavaVersion() {
+            return System.getProperty("java.version");
+        }
+    }
+
+    public static class STORAGE {
+        public static long getAbsoluteTotalSpace() {
+            long t = 0;
+
+            for (File i : getRoots()) {
+                t += getTotalSpace(i);
+            }
+
+            return t;
+        }
+
+        public static long getTotalSpace() {
+            return getTotalSpace(new File("."));
+        }
+
+        public static long getTotalSpace(File root) {
+            return root.getTotalSpace();
+        }
+
+        public static long getAbsoluteFreeSpace() {
+            long t = 0;
+
+            for (File i : getRoots()) {
+                t += getFreeSpace(i);
+            }
+
+            return t;
+        }
+
+        public static long getFreeSpace() {
+            return getFreeSpace(new File("."));
+        }
+
+        public static long getFreeSpace(File root) {
+            return root.getFreeSpace();
+        }
+
+        public static long getUsedSpace() {
+            return getTotalSpace() - getFreeSpace();
+        }
+
+        public static long getUsedSpace(File root) {
+            return getTotalSpace(root) - getFreeSpace(root);
+        }
+
+        public static long getAbsoluteUsedSpace() {
+            return getAbsoluteTotalSpace() - getAbsoluteFreeSpace();
+        }
+
+        public static File[] getRoots() {
+            return File.listRoots();
+        }
+    }
+
+    public static class MEMORY {
+        public static class PHYSICAL {
+            public static long getTotalMemory() {
+                return getSystem().getTotalPhysicalMemorySize();
+            }
+
+            public static long getFreeMemory() {
+                return getSystem().getFreePhysicalMemorySize();
+            }
+
+            public static long getUsedMemory() {
+                return getTotalMemory() - getFreeMemory();
+            }
+        }
+
+        public static class VIRTUAL {
+            public static long getTotalMemory() {
+                return getSystem().getTotalSwapSpaceSize();
+            }
+
+            public static long getFreeMemory() {
+                return getSystem().getFreeSwapSpaceSize();
+            }
+
+            public static long getUsedMemory() {
+                return getTotalMemory() - getFreeMemory();
+            }
+
+            public static long getCommittedVirtualMemory() {
+                return getSystem().getCommittedVirtualMemorySize();
+            }
+        }
+    }
+
+    public static class CPU {
+        public static int getAvailableProcessors() {
+            return getSystem().getAvailableProcessors();
+        }
+
+        public static double getCPULoad() {
+            return getSystem().getSystemCpuLoad();
+        }
+
+        public static double getLiveProcessCPULoad() {
+            return getSystem().getProcessCpuLoad();
+        }
+
+        public static String getArchitecture() {
+            return getSystem().getArch();
+        }
+    }
+}

core/src/main/java/com/volmit/iris/util/misc/getHardware.java

@@ -1,11 +1,24 @@
 package com.volmit.iris.util.misc;
 
-import oshi.SystemInfo;
-import oshi.hardware.CentralProcessor;
-import oshi.hardware.HWDiskStore;
-import oshi.software.os.OperatingSystem;
 
+import com.volmit.iris.util.collection.KList;
+import com.volmit.iris.util.format.C;
+import com.volmit.iris.util.format.Form;
+import org.jetbrains.annotations.Nullable;
+import oshi.SystemInfo;
+import oshi.hardware.*;
+import oshi.software.os.FileSystem;
+import oshi.software.os.OSFileStore;
+import oshi.software.os.OperatingSystem;
+import oshi.util.EdidUtil;
+
+import java.net.InetAddress;
+import java.net.NetworkInterface;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.Enumeration;
 import java.util.List;
+import java.util.stream.Collectors;
 
 public class getHardware {
     public static String getServerOS() {
@@ -44,14 +57,127 @@ public class getHardware {
         }
     }
 
-    public static String getDiskModel() {
-        SystemInfo systemInfo = new SystemInfo();
-        List<HWDiskStore> diskStores = systemInfo.getHardware().getDiskStores();
-        if (!diskStores.isEmpty()) {
-            HWDiskStore firstDisk = diskStores.get(0);
-            return firstDisk.getModel();
-        } else {
-            return "Unknown Disk Model";
+    public static KList<String> getSensors() {
+        try {
+            KList<String> temps = new KList<>();
+            SystemInfo systemInfo = new SystemInfo();
+            temps.add("CPU Temperature: " + systemInfo.getHardware().getSensors().getCpuTemperature());
+            temps.add("CPU Voltage: " + systemInfo.getHardware().getSensors().getCpuTemperature());
+            temps.add("Fan Speeds: " + Arrays.toString(systemInfo.getHardware().getSensors().getFanSpeeds()));
+            return temps.copy();
+        } catch (Exception e) {
+            e.printStackTrace();
         }
+        return null;
     }
-}
+
+    public static KList<String> getGraphicsCards() {
+        try {
+            KList<String> gpus = new KList<>();
+            SystemInfo systemInfo = new SystemInfo();
+            for (GraphicsCard gpu : systemInfo.getHardware().getGraphicsCards()) {
+                gpus.add(C.BLUE + "Gpu Model: " + C.GRAY + gpu.getName());
+                gpus.add("- vRam Size: " + C.GRAY + Form.memSize(gpu.getVRam()));
+                gpus.add("- Vendor: " + C.GRAY + gpu.getVendor());
+            }
+            return gpus.copy();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    public static KList<String> getDisk() {
+        try {
+            KList<String> systemDisks = new KList<>();
+            SystemInfo systemInfo = new SystemInfo();
+            List<HWDiskStore> diskStores = systemInfo.getHardware().getDiskStores();
+            OperatingSystem operatingSystem = systemInfo.getOperatingSystem();
+            List<OSFileStore> fileStores = operatingSystem.getFileSystem().getFileStores();
+
+            for (HWDiskStore disk : diskStores) {
+                systemDisks.add(C.BLUE + "Disk: " + disk.getName());
+                systemDisks.add("- Model: " + disk.getModel());
+                systemDisks.add("Partitions: " + disk.getPartitions());
+                for (OSFileStore partition : fileStores) {
+                    systemDisks.add(C.BLUE + "- Name: " + partition.getName());
+                    systemDisks.add(" - Description: " + partition.getDescription());
+                    systemDisks.add(" - Total Space: " + Form.memSize(partition.getTotalSpace()));
+                    systemDisks.add(" - Free Space: " + Form.memSize(partition.getFreeSpace()));
+                    systemDisks.add(" - Mount: " + partition.getMount());
+                    systemDisks.add(" - Label: " + partition.getLabel());
+                }
+                systemDisks.add(C.DARK_GRAY + "-=" + C.BLUE +" Since Boot " + C.DARK_GRAY + "=- ");
+                systemDisks.add("- Total Reads: " + Form.memSize(disk.getReadBytes()));
+                systemDisks.add("- Total Writes: " + Form.memSize(disk.getWriteBytes()));
+            }
+            if (systemDisks.isEmpty()) {
+                systemDisks.add("Failed to get disks.");
+            }
+            return systemDisks.copy();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    public static KList<String> getPowerSources() {
+        try {
+            KList<String> systemPowerSources = new KList<>();
+            SystemInfo systemInfo = new SystemInfo();
+            List<PowerSource> powerSources = systemInfo.getHardware().getPowerSources();
+            for (PowerSource powersource : powerSources) {
+                systemPowerSources.add(C.BLUE + "- Name: " + powersource.getName());
+                systemPowerSources.add("- RemainingCapacityPercent: " + powersource.getRemainingCapacityPercent());
+                systemPowerSources.add("- Power Usage Rate: " + powersource.getPowerUsageRate());
+                systemPowerSources.add("- Power OnLine: " + powersource.isPowerOnLine());
+                systemPowerSources.add("- Capacity Units: " + powersource.getCapacityUnits());
+                systemPowerSources.add("- Cycle Count: " + powersource.getCycleCount());
+            }
+            if (systemPowerSources.isEmpty()) {
+                systemPowerSources.add("No PowerSources.");
+            }
+            return systemPowerSources.copy();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    public static KList<String> getEDID() {
+        try {
+            KList<String> systemEDID = new KList<>();
+            SystemInfo systemInfo = new SystemInfo();
+            HardwareAbstractionLayer hardware = systemInfo.getHardware();
+            List<Display> displays = hardware.getDisplays();
+            for (Display display : displays) {
+                systemEDID.add("Display: " + display.getEdid());
+            }
+            if (!systemEDID.isEmpty()) {
+                systemEDID.add("No displays");
+            }
+            return systemEDID.copy();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    public static KList<String> getInterfaces() {
+        try {
+            KList<String> interfaces = new KList<>();
+            Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
+            for (NetworkInterface ni : Collections.list(networkInterfaces)) {
+                interfaces.add(C.BLUE + "Display Name: %s", ni.getDisplayName());
+                Enumeration<InetAddress> inetAddresses = ni.getInetAddresses();
+                for (InetAddress ia : Collections.list(inetAddresses)) {
+                    interfaces.add("IP: %s", ia.getHostAddress());
+                }
+                return interfaces.copy();
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+}

core/src/main/java/com/volmit/iris/util/nbt/mca/Chunk.java

@@ -27,10 +27,12 @@ import com.volmit.iris.util.nbt.io.NamedTag;
 import com.volmit.iris.util.nbt.mca.palette.MCABiomeContainer;
 import com.volmit.iris.util.nbt.tag.CompoundTag;
 import com.volmit.iris.util.nbt.tag.ListTag;
+import org.bukkit.World;
 
 import java.io.*;
 
 import static com.volmit.iris.util.nbt.mca.LoadFlags.*;
+import static org.bukkit.Bukkit.getServer;
 
 public class Chunk {
     public static final int DEFAULT_DATA_VERSION = 2730;
@@ -39,6 +41,7 @@ public class Chunk {
     private int lastMCAUpdate;
     private CompoundTag data;
     private int dataVersion;
+    private int nativeIrisVersion;
     private long lastUpdate;
     private long inhabitedTime;
     private MCABiomeContainer biomes;
@@ -71,15 +74,21 @@ public class Chunk {
     }
 
     public static Chunk newChunk() {
+        World mainWorld = getServer().getWorlds().get(0);
         Chunk c = new Chunk(0);
         c.dataVersion = DEFAULT_DATA_VERSION;
         c.data = new CompoundTag();
-        c.biomes = INMS.get().newBiomeContainer(0, 256);
+        c.biomes = INMS.get().newBiomeContainer(mainWorld.getMinHeight(), mainWorld.getMaxHeight());
         c.data.put("Level", defaultLevel());
         c.status = "full";
         return c;
     }
 
+    public static void injectIrisData(Chunk c) {
+        World mainWorld = getServer().getWorlds().get(0);
+        c.data.put("Iris", nativeIrisVersion());
+    }
+
     private static CompoundTag defaultLevel() {
         CompoundTag level = new CompoundTag();
         level.putString("Status", "full");
@@ -87,19 +96,25 @@ public class Chunk {
         return level;
     }
 
+    private static CompoundTag nativeIrisVersion() {
+        CompoundTag level = new CompoundTag();
+        level.putString("Generator", "Iris " + Iris.instance.getDescription().getVersion());
+        return level;
+    }
+
     private void initReferences(long loadFlags) {
         if (data == null) {
             throw new NullPointerException("data cannot be null");
         }
-        CompoundTag level;
-        if ((level = data.getCompoundTag("Level")) == null) {
-            throw new IllegalArgumentException("data does not contain \"Level\" tag");
-        }
+
+        CompoundTag level = data;
+
+        World mainWorld = getServer().getWorlds().get(0);
         dataVersion = data.getInt("DataVersion");
         inhabitedTime = level.getLong("InhabitedTime");
         lastUpdate = level.getLong("LastUpdate");
         if ((loadFlags & BIOMES) != 0) {
-            biomes = INMS.get().newBiomeContainer(0, 256, level.getIntArray("Biomes"));
+            biomes = INMS.get().newBiomeContainer(mainWorld.getMinHeight(), mainWorld.getMaxHeight(), level.getIntArray("Biomes"));
         }
         if ((loadFlags & HEIGHTMAPS) != 0) {
             heightMaps = level.getCompoundTag("Heightmaps");

core/src/main/resources/plugin.yml

@@ -12,7 +12,7 @@ libraries:
   - commons-io:commons-io:2.13.0
   - io.timeandspace:smoothie-map:2.0.2
   - com.google.guava:guava:31.0.1-jre
-  - com.google.code.gson:gson:2.8.9
+  - com.google.code.gson:gson:2.10.1
   - org.zeroturnaround:zt-zip:1.14
   - it.unimi.dsi:fastutil:8.5.6
   - org.ow2.asm:asm:9.2

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.3-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

nms/v1_20_R4/src/main/java/com/volmit/iris/core/nms/v1_20_R4/CustomBiomeSource.java

@@ -0,0 +1,168 @@
+package com.volmit.iris.core.nms.v1_20_R4;
+
+import com.mojang.serialization.MapCodec;
+import com.volmit.iris.Iris;
+import com.volmit.iris.engine.data.cache.AtomicCache;
+import com.volmit.iris.engine.framework.Engine;
+import com.volmit.iris.engine.object.IrisBiome;
+import com.volmit.iris.engine.object.IrisBiomeCustom;
+import com.volmit.iris.util.collection.KMap;
+import com.volmit.iris.util.math.RNG;
+import net.minecraft.core.Holder;
+import net.minecraft.core.Registry;
+import net.minecraft.core.RegistryAccess;
+import net.minecraft.core.registries.Registries;
+import net.minecraft.resources.ResourceKey;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.world.level.biome.Biome;
+import net.minecraft.world.level.biome.BiomeSource;
+import net.minecraft.world.level.biome.Climate;
+import org.bukkit.Bukkit;
+import org.bukkit.World;
+import org.bukkit.craftbukkit.v1_20_R4.CraftServer;
+import org.bukkit.craftbukkit.v1_20_R4.CraftWorld;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+import java.util.stream.Stream;
+
+public class CustomBiomeSource extends BiomeSource {
+
+    private final long seed;
+    private final Engine engine;
+    private final Registry<Biome> biomeCustomRegistry;
+    private final Registry<Biome> biomeRegistry;
+    private final AtomicCache<RegistryAccess> registryAccess = new AtomicCache<>();
+    private final RNG rng;
+    private final KMap<String, Holder<Biome>> customBiomes;
+
+    public CustomBiomeSource(long seed, Engine engine, World world) {
+        this.engine = engine;
+        this.seed = seed;
+        this.biomeCustomRegistry = registry().registry(Registries.BIOME).orElse(null);
+        this.biomeRegistry = ((RegistryAccess) getFor(RegistryAccess.Frozen.class, ((CraftServer) Bukkit.getServer()).getHandle().getServer())).registry(Registries.BIOME).orElse(null);
+        this.rng = new RNG(engine.getSeedManager().getBiome());
+        this.customBiomes = fillCustomBiomes(biomeCustomRegistry, engine);
+    }
+
+    private static List<Holder<Biome>> getAllBiomes(Registry<Biome> customRegistry, Registry<Biome> registry, Engine engine) {
+        List<Holder<Biome>> b = new ArrayList<>();
+
+        for (IrisBiome i : engine.getAllBiomes()) {
+            if (i.isCustom()) {
+                for (IrisBiomeCustom j : i.getCustomDerivitives()) {
+                    b.add(customRegistry.getHolder(customRegistry.getResourceKey(customRegistry
+                            .get(new ResourceLocation(engine.getDimension().getLoadKey() + ":" + j.getId()))).get()).get());
+                }
+            } else {
+                b.add(NMSBinding.biomeToBiomeBase(registry, i.getVanillaDerivative()));
+            }
+        }
+
+        return b;
+    }
+
+    private static Object getFor(Class<?> type, Object source) {
+        Object o = fieldFor(type, source);
+
+        if (o != null) {
+            return o;
+        }
+
+        return invokeFor(type, source);
+    }
+
+    private static Object fieldFor(Class<?> returns, Object in) {
+        return fieldForClass(returns, in.getClass(), in);
+    }
+
+    private static Object invokeFor(Class<?> returns, Object in) {
+        for (Method i : in.getClass().getMethods()) {
+            if (i.getReturnType().equals(returns)) {
+                i.setAccessible(true);
+                try {
+                    Iris.debug("[NMS] Found " + returns.getSimpleName() + " in " + in.getClass().getSimpleName() + "." + i.getName() + "()");
+                    return i.invoke(in);
+                } catch (Throwable e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+
+        return null;
+    }
+
+    @SuppressWarnings("unchecked")
+    private static <T> T fieldForClass(Class<T> returnType, Class<?> sourceType, Object in) {
+        for (Field i : sourceType.getDeclaredFields()) {
+            if (i.getType().equals(returnType)) {
+                i.setAccessible(true);
+                try {
+                    Iris.debug("[NMS] Found " + returnType.getSimpleName() + " in " + sourceType.getSimpleName() + "." + i.getName());
+                    return (T) i.get(in);
+                } catch (IllegalAccessException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+        return null;
+    }
+
+    @Override
+    protected Stream<Holder<Biome>> collectPossibleBiomes() {
+        return getAllBiomes(
+                ((RegistryAccess) getFor(RegistryAccess.Frozen.class, ((CraftServer) Bukkit.getServer()).getHandle().getServer()))
+                        .registry(Registries.BIOME).orElse(null),
+                ((CraftWorld) engine.getWorld().realWorld()).getHandle().registryAccess().registry(Registries.BIOME).orElse(null),
+                engine).stream();
+    }
+    private KMap<String, Holder<Biome>> fillCustomBiomes(Registry<Biome> customRegistry, Engine engine) {
+        KMap<String, Holder<Biome>> m = new KMap<>();
+
+        for (IrisBiome i : engine.getAllBiomes()) {
+            if (i.isCustom()) {
+                for (IrisBiomeCustom j : i.getCustomDerivitives()) {
+                    ResourceLocation resourceLocation = new ResourceLocation(engine.getDimension().getLoadKey() + ":" + j.getId());
+                    Biome biome = customRegistry.get(resourceLocation);
+                    Optional<ResourceKey<Biome>> optionalBiomeKey = customRegistry.getResourceKey(biome);
+                    if (optionalBiomeKey.isEmpty()) {
+                        Iris.error("Cannot find biome for IrisBiomeCustom " + j.getId() + " from engine " + engine.getName());
+                        continue;
+                    }
+                    ResourceKey<Biome> biomeKey = optionalBiomeKey.get();
+                    Optional<Holder.Reference<Biome>> optionalReferenceHolder = customRegistry.getHolder(biomeKey);
+                    if (optionalReferenceHolder.isEmpty()) {
+                        Iris.error("Cannot find reference to biome " + biomeKey + " for engine " + engine.getName());
+                        continue;
+                    }
+                    m.put(j.getId(), optionalReferenceHolder.get());
+                }
+            }
+        }
+
+        return m;
+    }
+
+    private RegistryAccess registry() {
+        return registryAccess.aquire(() -> (RegistryAccess) getFor(RegistryAccess.Frozen.class, ((CraftServer) Bukkit.getServer()).getHandle().getServer()));
+    }
+
+    @Override
+    protected MapCodec<? extends BiomeSource> codec() {
+        throw new UnsupportedOperationException("Not supported");
+    }
+
+    @Override
+    public Holder<Biome> getNoiseBiome(int x, int y, int z, Climate.Sampler sampler) {
+        int m = (y - engine.getMinHeight()) << 2;
+        IrisBiome ib = engine.getComplex().getTrueBiomeStream().get(x << 2, z << 2);
+        if (ib.isCustom()) {
+            return customBiomes.get(ib.getCustomBiome(rng, x << 2, m, z << 2).getId());
+        } else {
+            org.bukkit.block.Biome v = ib.getSkyBiome(rng, x << 2, m, z << 2);
+            return NMSBinding.biomeToBiomeBase(biomeRegistry, v);
+        }
+    }
+}

nms/v1_20_R4/src/main/java/com/volmit/iris/core/nms/v1_20_R4/NMSBinding.java

@@ -0,0 +1,552 @@
+package com.volmit.iris.core.nms.v1_20_R4;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Vector;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import com.volmit.iris.core.nms.datapack.DataVersion;
+import net.minecraft.core.component.DataComponents;
+import net.minecraft.world.item.component.CustomData;
+import net.minecraft.world.level.chunk.status.ChunkStatus;
+import org.bukkit.*;
+import org.bukkit.block.Biome;
+import org.bukkit.block.data.BlockData;
+import org.bukkit.craftbukkit.v1_20_R4.CraftChunk;
+import org.bukkit.craftbukkit.v1_20_R4.CraftServer;
+import org.bukkit.craftbukkit.v1_20_R4.CraftWorld;
+import org.bukkit.craftbukkit.v1_20_R4.block.data.CraftBlockData;
+import org.bukkit.craftbukkit.v1_20_R4.entity.CraftDolphin;
+import org.bukkit.craftbukkit.v1_20_R4.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_20_R4.util.CraftNamespacedKey;
+import org.bukkit.entity.Dolphin;
+import org.bukkit.entity.Entity;
+import org.bukkit.event.entity.CreatureSpawnEvent;
+import org.bukkit.generator.ChunkGenerator;
+import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.NotNull;
+
+import com.mojang.brigadier.exceptions.CommandSyntaxException;
+import com.volmit.iris.Iris;
+import com.volmit.iris.core.nms.INMSBinding;
+import com.volmit.iris.engine.data.cache.AtomicCache;
+import com.volmit.iris.engine.framework.Engine;
+import com.volmit.iris.util.collection.KList;
+import com.volmit.iris.util.collection.KMap;
+import com.volmit.iris.util.hunk.Hunk;
+import com.volmit.iris.util.json.JSONObject;
+import com.volmit.iris.util.mantle.Mantle;
+import com.volmit.iris.util.math.Vector3d;
+import com.volmit.iris.util.matter.MatterBiomeInject;
+import com.volmit.iris.util.nbt.io.NBTUtil;
+import com.volmit.iris.util.nbt.mca.NBTWorld;
+import com.volmit.iris.util.nbt.mca.palette.*;
+import com.volmit.iris.util.nbt.tag.CompoundTag;
+
+import it.unimi.dsi.fastutil.objects.Object2IntMap;
+import net.minecraft.core.BlockPos;
+import net.minecraft.core.Holder;
+import net.minecraft.core.Registry;
+import net.minecraft.core.RegistryAccess;
+import net.minecraft.core.registries.Registries;
+import net.minecraft.nbt.NbtIo;
+import net.minecraft.nbt.TagParser;
+import net.minecraft.resources.ResourceKey;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.world.entity.EntityType;
+import net.minecraft.world.level.biome.BiomeSource;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.entity.BlockEntity;
+import net.minecraft.world.level.block.state.BlockState;
+import net.minecraft.world.level.chunk.ChunkAccess;
+import net.minecraft.world.level.chunk.LevelChunk;
+import sun.misc.Unsafe;
+
+public class NMSBinding implements INMSBinding {
+    private final KMap<Biome, Object> baseBiomeCache = new KMap<>();
+    private final BlockData AIR = Material.AIR.createBlockData();
+    private final AtomicCache<MCAIdMap<net.minecraft.world.level.biome.Biome>> biomeMapCache = new AtomicCache<>();
+    private final AtomicCache<MCAIdMapper<BlockState>> registryCache = new AtomicCache<>();
+    private final AtomicCache<MCAPalette<BlockState>> globalCache = new AtomicCache<>();
+    private final AtomicCache<RegistryAccess> registryAccess = new AtomicCache<>();
+    private final AtomicCache<Method> byIdRef = new AtomicCache<>();
+    private Field biomeStorageCache = null;
+
+    private static Object getFor(Class<?> type, Object source) {
+        Object o = fieldFor(type, source);
+
+        if (o != null) {
+            return o;
+        }
+
+        return invokeFor(type, source);
+    }
+
+    private static Object invokeFor(Class<?> returns, Object in) {
+        for (Method i : in.getClass().getMethods()) {
+            if (i.getReturnType().equals(returns)) {
+                i.setAccessible(true);
+                try {
+                    Iris.debug("[NMS] Found " + returns.getSimpleName() + " in " + in.getClass().getSimpleName() + "." + i.getName() + "()");
+                    return i.invoke(in);
+                } catch (Throwable e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+
+        return null;
+    }
+
+    private static Object fieldFor(Class<?> returns, Object in) {
+        return fieldForClass(returns, in.getClass(), in);
+    }
+
+    @SuppressWarnings("unchecked")
+    private static <T> T fieldForClass(Class<T> returnType, Class<?> sourceType, Object in) {
+        for (Field i : sourceType.getDeclaredFields()) {
+            if (i.getType().equals(returnType)) {
+                i.setAccessible(true);
+                try {
+                    Iris.debug("[NMS] Found " + returnType.getSimpleName() + " in " + sourceType.getSimpleName() + "." + i.getName());
+                    return (T) i.get(in);
+                } catch (IllegalAccessException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+        return null;
+    }
+
+    private static Class<?> getClassType(Class<?> type, int ordinal) {
+        return type.getDeclaredClasses()[ordinal];
+    }
+
+    @Override
+    public boolean hasTile(Location l) {
+        return ((CraftWorld) l.getWorld()).getHandle().getBlockEntity(new BlockPos(l.getBlockX(), l.getBlockY(), l.getBlockZ()), false) != null;
+    }
+
+    @Override
+    public CompoundTag serializeTile(Location location) {
+        BlockEntity e = ((CraftWorld) location.getWorld()).getHandle().getBlockEntity(new BlockPos(location.getBlockX(), location.getBlockY(), location.getBlockZ()), true);
+
+        if (e == null) {
+            return null;
+        }
+
+        net.minecraft.nbt.CompoundTag tag = e.saveWithFullMetadata(registry());
+        return convert(tag);
+    }
+
+    private CompoundTag convert(net.minecraft.nbt.CompoundTag tag) {
+        try {
+            ByteArrayOutputStream boas = new ByteArrayOutputStream();
+            DataOutputStream dos = new DataOutputStream(boas);
+            tag.write(dos);
+            dos.close();
+            return (CompoundTag) NBTUtil.read(new ByteArrayInputStream(boas.toByteArray()), false).getTag();
+        } catch (Throwable ex) {
+            ex.printStackTrace();
+        }
+
+        return null;
+    }
+
+    private net.minecraft.nbt.CompoundTag convert(CompoundTag tag) {
+        try {
+            ByteArrayOutputStream boas = new ByteArrayOutputStream();
+            NBTUtil.write(tag, boas, false);
+            DataInputStream din = new DataInputStream(new ByteArrayInputStream(boas.toByteArray()));
+            net.minecraft.nbt.CompoundTag c = NbtIo.read(din);
+            din.close();
+            return c;
+        } catch (Throwable e) {
+            e.printStackTrace();
+        }
+
+        return null;
+    }
+
+    @Override
+    public void deserializeTile(CompoundTag c, Location pos) {
+        ((CraftWorld) pos.getWorld()).getHandle().getChunkAt(new BlockPos(pos.getBlockX(), 0, pos.getBlockZ())).setBlockEntityNbt(convert(c));
+    }
+
+    @Override
+    public CompoundTag serializeEntity(Entity location) {
+        return null;// TODO:
+    }
+
+    @Override
+    public Entity deserializeEntity(CompoundTag s, Location newPosition) {
+        return null;// TODO:
+    }
+
+    @Override
+    public boolean supportsCustomHeight() {
+        return true;
+    }
+
+    private RegistryAccess registry() {
+        return registryAccess.aquire(() -> (RegistryAccess) getFor(RegistryAccess.Frozen.class, ((CraftServer) Bukkit.getServer()).getHandle().getServer()));
+    }
+
+    private Registry<net.minecraft.world.level.biome.Biome> getCustomBiomeRegistry() {
+        return registry().registry(Registries.BIOME).orElse(null);
+    }
+
+    private Registry<Block> getBlockRegistry() {
+        return registry().registry(Registries.BLOCK).orElse(null);
+    }
+
+    @Override
+    public Object getBiomeBaseFromId(int id) {
+        return getCustomBiomeRegistry().getHolder(id);
+    }
+
+    @Override
+    public int getMinHeight(World world) {
+        return world.getMinHeight();
+    }
+
+    @Override
+    public boolean supportsCustomBiomes() {
+        return true;
+    }
+
+    @Override
+    public int getTrueBiomeBaseId(Object biomeBase) {
+        return getCustomBiomeRegistry().getId(((Holder<net.minecraft.world.level.biome.Biome>) biomeBase).value());
+    }
+
+    @Override
+    public Object getTrueBiomeBase(Location location) {
+        return ((CraftWorld) location.getWorld()).getHandle().getBiome(new BlockPos(location.getBlockX(), location.getBlockY(), location.getBlockZ()));
+    }
+
+    @Override
+    public String getTrueBiomeBaseKey(Location location) {
+        return getKeyForBiomeBase(getTrueBiomeBase(location));
+    }
+
+    @Override
+    public Object getCustomBiomeBaseFor(String mckey) {
+        return getCustomBiomeRegistry().get(new ResourceLocation(mckey));
+    }
+
+    @Override
+    public Object getCustomBiomeBaseHolderFor(String mckey) {
+        return getCustomBiomeRegistry().getHolder(getTrueBiomeBaseId(getCustomBiomeRegistry().get(new ResourceLocation(mckey)))).get();
+    }
+
+    public int getBiomeBaseIdForKey(String key) {
+        return getCustomBiomeRegistry().getId(getCustomBiomeRegistry().get(new ResourceLocation(key)));
+    }
+
+    @Override
+    public String getKeyForBiomeBase(Object biomeBase) {
+        return getCustomBiomeRegistry().getKey((net.minecraft.world.level.biome.Biome) biomeBase).getPath(); // something, not something:something
+    }
+
+    @Override
+    public Object getBiomeBase(World world, Biome biome) {
+        return biomeToBiomeBase(((CraftWorld) world).getHandle()
+                .registryAccess().registry(Registries.BIOME).orElse(null), biome);
+    }
+
+    @Override
+    public Object getBiomeBase(Object registry, Biome biome) {
+        Object v = baseBiomeCache.get(biome);
+
+        if (v != null) {
+            return v;
+        }
+        //noinspection unchecked
+        v = biomeToBiomeBase((Registry<net.minecraft.world.level.biome.Biome>) registry, biome);
+        if (v == null) {
+            // Ok so there is this new biome name called "CUSTOM" in Paper's new releases.
+            // But, this does NOT exist within CraftBukkit which makes it return an error.
+            // So, we will just return the ID that the plains biome returns instead.
+            //noinspection unchecked
+            return biomeToBiomeBase((Registry<net.minecraft.world.level.biome.Biome>) registry, Biome.PLAINS);
+        }
+        baseBiomeCache.put(biome, v);
+        return v;
+    }
+
+    @Override
+    public KList<Biome> getBiomes() {
+        return new KList<>(Biome.values()).qadd(Biome.CHERRY_GROVE).qdel(Biome.CUSTOM);
+    }
+
+    @Override
+    public boolean isBukkit() {
+        return true;
+    }
+
+    @Override
+    public int getBiomeId(Biome biome) {
+        for (World i : Bukkit.getWorlds()) {
+            if (i.getEnvironment().equals(World.Environment.NORMAL)) {
+                Registry<net.minecraft.world.level.biome.Biome> registry = ((CraftWorld) i).getHandle().registryAccess().registry(Registries.BIOME).orElse(null);
+                return registry.getId((net.minecraft.world.level.biome.Biome) getBiomeBase(registry, biome));
+            }
+        }
+
+        return biome.ordinal();
+    }
+
+    private MCAIdMap<net.minecraft.world.level.biome.Biome> getBiomeMapping() {
+        return biomeMapCache.aquire(() -> new MCAIdMap<>() {
+            @NotNull
+            @Override
+            public Iterator<net.minecraft.world.level.biome.Biome> iterator() {
+                return getCustomBiomeRegistry().iterator();
+            }
+
+            @Override
+            public int getId(net.minecraft.world.level.biome.Biome paramT) {
+                return getCustomBiomeRegistry().getId(paramT);
+            }
+
+            @Override
+            public net.minecraft.world.level.biome.Biome byId(int paramInt) {
+                return (net.minecraft.world.level.biome.Biome) getBiomeBaseFromId(paramInt);
+            }
+        });
+    }
+
+    @NotNull
+    private MCABiomeContainer getBiomeContainerInterface(MCAIdMap<net.minecraft.world.level.biome.Biome> biomeMapping, MCAChunkBiomeContainer<net.minecraft.world.level.biome.Biome> base) {
+        return new MCABiomeContainer() {
+            @Override
+            public int[] getData() {
+                return base.writeBiomes();
+            }
+
+            @Override
+            public void setBiome(int x, int y, int z, int id) {
+                base.setBiome(x, y, z, biomeMapping.byId(id));
+            }
+
+            @Override
+            public int getBiome(int x, int y, int z) {
+                return biomeMapping.getId(base.getBiome(x, y, z));
+            }
+        };
+    }
+
+    @Override
+    public MCABiomeContainer newBiomeContainer(int min, int max) {
+        MCAChunkBiomeContainer<net.minecraft.world.level.biome.Biome> base = new MCAChunkBiomeContainer<>(getBiomeMapping(), min, max);
+        return getBiomeContainerInterface(getBiomeMapping(), base);
+    }
+
+    @Override
+    public MCABiomeContainer newBiomeContainer(int min, int max, int[] data) {
+        MCAChunkBiomeContainer<net.minecraft.world.level.biome.Biome> base = new MCAChunkBiomeContainer<>(getBiomeMapping(), min, max, data);
+        return getBiomeContainerInterface(getBiomeMapping(), base);
+    }
+
+    @Override
+    public int countCustomBiomes() {
+        AtomicInteger a = new AtomicInteger(0);
+
+        getCustomBiomeRegistry().keySet().forEach((i) -> {
+            if (i.getNamespace().equals("minecraft")) {
+                return;
+            }
+
+            a.incrementAndGet();
+            Iris.debug("Custom Biome: " + i);
+        });
+
+        return a.get();
+    }
+
+    public boolean supportsDataPacks() {
+        return true;
+    }
+
+    public void setBiomes(int cx, int cz, World world, Hunk<Object> biomes) {
+        LevelChunk c = ((CraftWorld) world).getHandle().getChunk(cx, cz);
+        biomes.iterateSync((x, y, z, b) -> c.setBiome(x, y, z, (Holder<net.minecraft.world.level.biome.Biome>) b));
+        c.setUnsaved(true);
+    }
+
+    @Override
+    public void forceBiomeInto(int x, int y, int z, Object somethingVeryDirty, ChunkGenerator.BiomeGrid chunk) {
+        try {
+            ChunkAccess s = (ChunkAccess) getFieldForBiomeStorage(chunk).get(chunk);
+            Holder<net.minecraft.world.level.biome.Biome> biome = (Holder<net.minecraft.world.level.biome.Biome>) somethingVeryDirty;
+            s.setBiome(x, y, z, biome);
+        } catch (IllegalAccessException e) {
+            Iris.reportError(e);
+            e.printStackTrace();
+        }
+    }
+
+    private Field getFieldForBiomeStorage(Object storage) {
+        Field f = biomeStorageCache;
+
+        if (f != null) {
+            return f;
+        }
+        try {
+            f = storage.getClass().getDeclaredField("biome");
+            f.setAccessible(true);
+            return f;
+        } catch (Throwable e) {
+            Iris.reportError(e);
+            e.printStackTrace();
+            Iris.error(storage.getClass().getCanonicalName());
+        }
+
+        biomeStorageCache = f;
+        return null;
+    }
+
+    @Override
+    public MCAPaletteAccess createPalette() {
+        MCAIdMapper<BlockState> registry = registryCache.aquireNasty(() -> {
+            Field cf = net.minecraft.core.IdMapper.class.getDeclaredField("tToId");
+            Field df = net.minecraft.core.IdMapper.class.getDeclaredField("idToT");
+            Field bf = net.minecraft.core.IdMapper.class.getDeclaredField("nextId");
+            cf.setAccessible(true);
+            df.setAccessible(true);
+            bf.setAccessible(true);
+            net.minecraft.core.IdMapper<BlockState> blockData = Block.BLOCK_STATE_REGISTRY;
+            int b = bf.getInt(blockData);
+            Object2IntMap<BlockState> c = (Object2IntMap<BlockState>) cf.get(blockData);
+            List<BlockState> d = (List<BlockState>) df.get(blockData);
+            return new MCAIdMapper<BlockState>(c, d, b);
+        });
+        MCAPalette<BlockState> global = globalCache.aquireNasty(() -> new MCAGlobalPalette<>(registry, ((CraftBlockData) AIR).getState()));
+        MCAPalettedContainer<BlockState> container = new MCAPalettedContainer<>(global, registry,
+                i -> ((CraftBlockData) NBTWorld.getBlockData(i)).getState(),
+                i -> NBTWorld.getCompound(CraftBlockData.fromData(i)),
+                ((CraftBlockData) AIR).getState());
+        return new MCAWrappedPalettedContainer<>(container,
+                i -> NBTWorld.getCompound(CraftBlockData.fromData(i)),
+                i -> ((CraftBlockData) NBTWorld.getBlockData(i)).getState());
+    }
+
+    @Override
+    public void injectBiomesFromMantle(Chunk e, Mantle mantle) {
+        ChunkAccess chunk = ((CraftChunk) e).getHandle(ChunkStatus.FULL);
+        AtomicInteger c = new AtomicInteger();
+        AtomicInteger r = new AtomicInteger();
+        mantle.iterateChunk(e.getX(), e.getZ(), MatterBiomeInject.class, (x, y, z, b) -> {
+            if (b != null) {
+                if (b.isCustom()) {
+                    chunk.setBiome(x, y, z, getCustomBiomeRegistry().getHolder(b.getBiomeId()).get());
+                    c.getAndIncrement();
+                } else {
+                    chunk.setBiome(x, y, z, (Holder<net.minecraft.world.level.biome.Biome>) getBiomeBase(e.getWorld(), b.getBiome()));
+                    r.getAndIncrement();
+                }
+            }
+        });
+    }
+
+    public ItemStack applyCustomNbt(ItemStack itemStack, KMap<String, Object> customNbt) throws IllegalArgumentException {
+        if (customNbt != null && !customNbt.isEmpty()) {
+            net.minecraft.world.item.ItemStack s = CraftItemStack.asNMSCopy(itemStack);
+
+            try {
+                net.minecraft.nbt.CompoundTag tag = TagParser.parseTag((new JSONObject(customNbt)).toString());
+                tag.merge(s.getOrDefault(DataComponents.CUSTOM_DATA, CustomData.EMPTY).getUnsafe());
+                s.set(DataComponents.CUSTOM_DATA, CustomData.of(tag));
+            } catch (CommandSyntaxException var5) {
+                throw new IllegalArgumentException(var5);
+            }
+
+            return CraftItemStack.asBukkitCopy(s);
+        } else {
+            return itemStack;
+        }
+    }
+
+    public void setTreasurePos(Dolphin dolphin, com.volmit.iris.core.nms.container.BlockPos pos) {
+        CraftDolphin cd = (CraftDolphin)dolphin;
+        cd.getHandle().setTreasurePos(new BlockPos(pos.getX(), pos.getY(), pos.getZ()));
+        cd.getHandle().setGotFish(true);
+    }
+
+    public void inject(long seed, Engine engine, World world) throws NoSuchFieldException, IllegalAccessException {
+        ServerLevel serverLevel = ((CraftWorld)world).getHandle();
+        Class<?> clazz = serverLevel.getChunkSource().chunkMap.generator.getClass();
+        Field biomeSource = getField(clazz, BiomeSource.class);
+        biomeSource.setAccessible(true);
+        Field unsafeField = Unsafe.class.getDeclaredField("theUnsafe");
+        unsafeField.setAccessible(true);
+        Unsafe unsafe = (Unsafe)unsafeField.get(null);
+        CustomBiomeSource customBiomeSource = new CustomBiomeSource(seed, engine, world);
+        unsafe.putObject(biomeSource.get(serverLevel.getChunkSource().chunkMap.generator), unsafe.objectFieldOffset(biomeSource), customBiomeSource);
+        biomeSource.set(serverLevel.getChunkSource().chunkMap.generator, customBiomeSource);
+    }
+
+    public Vector3d getBoundingbox(org.bukkit.entity.EntityType entity) {
+        Field[] fields = EntityType.class.getDeclaredFields();
+        for (Field field : fields) {
+            if (Modifier.isStatic(field.getModifiers()) && field.getType().equals(EntityType.class)) {
+                try {
+                    EntityType entityType = (EntityType) field.get(null);
+                    if (entityType.getDescriptionId().equals("entity.minecraft." + entity.name().toLowerCase())) {
+                        Vector<Float> v1 = new Vector<>();
+                        v1.add(entityType.getHeight());
+                        entityType.getDimensions();
+                        Vector3d box = new Vector3d( entityType.getWidth(), entityType.getHeight(),  entityType.getWidth());
+                        //System.out.println("Entity Type: " + entityType.getDescriptionId() + ", " + "Height: " + height + ", Width: " + width);
+                        return box;
+                    }
+                } catch (IllegalAccessException e) {
+                    Iris.error("Unable to get entity dimensions!");
+                    e.printStackTrace();
+                }
+            }
+        }
+        return null;
+    }
+
+
+    @Override
+    public Entity spawnEntity(Location location,  org.bukkit.entity.EntityType type, CreatureSpawnEvent.SpawnReason reason) {
+        return ((CraftWorld) location.getWorld()).spawn(location, type.getEntityClass(), null, reason);
+    }
+
+    private static Field getField(Class<?> clazz, Class<?> fieldType) throws NoSuchFieldException {
+        try {
+            for (Field f : clazz.getDeclaredFields()) {
+                if (f.getType().equals(fieldType))
+                    return f;
+            }
+            throw new NoSuchFieldException(fieldType.getName());
+        } catch (NoSuchFieldException var4) {
+            Class<?> superClass = clazz.getSuperclass();
+            if (superClass == null) {
+                throw var4;
+            } else {
+                return getField(superClass, fieldType);
+            }
+        }
+    }
+
+    public static Holder<net.minecraft.world.level.biome.Biome> biomeToBiomeBase(Registry<net.minecraft.world.level.biome.Biome> registry, Biome biome) {
+        return registry.getHolderOrThrow(ResourceKey.create(Registries.BIOME, CraftNamespacedKey.toMinecraft(biome.getKey())));
+    }
+
+    @Override
+    public DataVersion getDataVersion() {
+        return DataVersion.V1205;
+    }
+}

settings.gradle

@@ -22,10 +22,15 @@ pluginManagement {
         gradlePluginPortal()
     }
 }
+plugins {
+    id "org.gradle.toolchains.foojay-resolver-convention" version "0.8.0"
+}
+
 rootProject.name = 'Iris'
 
 include(':core')
 include(
+        ':nms:v1_20_R4',
         ':nms:v1_20_R3',
         ':nms:v1_20_R2',
         ':nms:v1_20_R1',