From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martijn Muijsers <martijnmuijsers@live.nl>
Date: Sat, 24 Dec 2022 23:30:35 +0100
Subject: [PATCH] Make max interaction distance configurable

License: AGPL-3.0 (https://www.gnu.org/licenses/agpl-3.0.html)
Gale - https://galemc.org

diff --git a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
index 58b093bb1de78ee3b3b2ea364aa50474883f443a..7be34e5df2b6d33c1d7943c9c0b6fd065b010c34 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
@@ -173,7 +173,7 @@ public class ServerPlayerGameMode {
     private void debugLogging(BlockPos pos, boolean success, int sequence, String reason) {}
 
     public void handleBlockBreakAction(BlockPos pos, ServerboundPlayerActionPacket.Action action, Direction direction, int worldHeight, int sequence) {
-        if (this.player.getEyePosition().distanceToSqr(Vec3.atCenterOf(pos)) > ServerGamePacketListenerImpl.MAX_INTERACTION_DISTANCE) {
+        if (this.player.getEyePosition().distanceToSqr(Vec3.atCenterOf(pos)) > ServerGamePacketListenerImpl.getMaxInteractionDistanceSquared(this.player.level)) { // Gale - make max interaction distance configurable
             if (true) return; // Paper - Don't notify if unreasonably far away
             this.debugLogging(pos, false, sequence, "too far");
         } else if (pos.getY() >= worldHeight) {
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 4d7faeda716c5ac053cfb1d894f5a28e3a69f969..14ee62567ace6fc1becf4257761a811d2ab6f71d 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -250,7 +250,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
 
     static final Logger LOGGER = LogUtils.getLogger();
     private static final int LATENCY_CHECK_INTERVAL = 15000;
-    public static final double MAX_INTERACTION_DISTANCE = Mth.square(6.0D);
+    public static final double DEFAULT_MAX_INTERACTION_DISTANCE_SQUARED = Mth.square(6.0D); // Gale - make max interaction distance configurable
     private static final int NO_BLOCK_UPDATES_TO_ACK = -1;
     private static final int TRACKED_MESSAGE_DISCONNECT_THRESHOLD = 4096;
     private static final Component CHAT_VALIDATION_FAILED = Component.translatable("multiplayer.disconnect.chat_validation_failed");
@@ -347,6 +347,13 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
     }
     // CraftBukkit end
 
+    // Gale start - make max interaction distance configurable
+    public static double getMaxInteractionDistanceSquared(Level level) {
+        var config = level.galeConfig().gameplayMechanics;
+        return config.playerMaxInteractionDistance < 0 ? ServerGamePacketListenerImpl.DEFAULT_MAX_INTERACTION_DISTANCE_SQUARED : config.playerMaxInteractionDistanceSquared;
+    }
+    // Gale end - make max interaction distance configurable
+
     @Override
     public void tick() {
         if (this.ackBlockChangesUpTo > -1) {
@@ -1968,7 +1975,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
             BlockPos blockposition = movingobjectpositionblock.getBlockPos();
             Vec3 vec3d1 = Vec3.atCenterOf(blockposition);
 
-            if (this.player.getEyePosition().distanceToSqr(vec3d1) <= ServerGamePacketListenerImpl.MAX_INTERACTION_DISTANCE) {
+            if (this.player.getEyePosition().distanceToSqr(vec3d1) <= ServerGamePacketListenerImpl.getMaxInteractionDistanceSquared(this.player.level)) { // Gale - make max interaction distance configurable
                 Vec3 vec3d2 = vec3d.subtract(vec3d1);
                 double d0 = 1.0000001D;
 
@@ -2790,7 +2797,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
                 return;
             }
 
-            if (entity.distanceToSqr(this.player.getEyePosition()) < ServerGamePacketListenerImpl.MAX_INTERACTION_DISTANCE) {
+            if (entity.distanceToSqr(this.player.getEyePosition()) < ServerGamePacketListenerImpl.getMaxInteractionDistanceSquared(this.player.level)) { // Gale - make max interaction distance configurable
                 packet.dispatch(new ServerboundInteractPacket.Handler() {
                     private void performInteraction(InteractionHand enumhand, ServerGamePacketListenerImpl.EntityInteraction playerconnection_a, PlayerInteractEntityEvent event) { // CraftBukkit
                         ItemStack itemstack = ServerGamePacketListenerImpl.this.player.getItemInHand(enumhand);
diff --git a/src/main/java/org/galemc/gale/configuration/GaleWorldConfiguration.java b/src/main/java/org/galemc/gale/configuration/GaleWorldConfiguration.java
index b18bc70c5ada1124e63cdbe8d75adf058a34bd4f..a3fb445c105a0335bd3360122d39aea93ea2de59 100644
--- a/src/main/java/org/galemc/gale/configuration/GaleWorldConfiguration.java
+++ b/src/main/java/org/galemc/gale/configuration/GaleWorldConfiguration.java
@@ -275,12 +275,26 @@ public class GaleWorldConfiguration extends ConfigurationPart {
     }
 
     public GameplayMechanics gameplayMechanics;
-    public class GameplayMechanics extends ConfigurationPart {
+    public class GameplayMechanics extends ConfigurationPart.Post {
 
         public boolean entitiesCanEatBlocksInNonTickingChunks = false; // Gale - Purpur - prevent entities eating blocks in non-ticking chunks
         public boolean arrowMovementResetsDespawnCounter = true; // Gale - Purpur - make arrow movement resetting despawn counter configurable
         public boolean hideFlamesOnEntitiesWithFireResistance = false; // Gale - Slice - hide flames on entities with fire resistance
 
+        // Gale start - make max interaction distance configurable
+        /**
+         * The maximum distance for blocks with which a player can interact with left- or right-clicking.
+         * Any value < 0 uses the default max distance, which is currently 6.0.
+         * <ul>
+         *     <li><i>Default</i>: -1.0</li>
+         *     <li><i>Vanilla</i>: -1.0</li>
+         * </ul>
+         */
+        public double playerMaxInteractionDistance = -1.0;
+
+        public transient double playerMaxInteractionDistanceSquared;
+        // Gale end - make max interaction distance configurable
+
         public Fixes fixes;
         public class Fixes extends ConfigurationPart {
 
@@ -315,6 +329,11 @@ public class GaleWorldConfiguration extends ConfigurationPart {
 
         }
 
+        @Override
+        public void postProcess() {
+            this.playerMaxInteractionDistanceSquared = this.playerMaxInteractionDistance * this.playerMaxInteractionDistance; // Gale - make max interaction distance configurable
+        }
+
     }
 
 }