From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: BillyGalbreath <Blake.Galbreath@Gmail.com>
Date: Sat, 15 Jan 2022 06:23:04 -0600
Subject: [PATCH] Dont eat blocks in non ticking chunks

Original code by PurpurMC, licensed under MIT
You can find the original code on https://github.com/PurpurMC/Purpur

diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
index 3ce4dbf4eed442d89d6bbc8e4c6a000172041da5..364d899f4fba65f0ecae522c7dde4f1ef8ee632e 100644
--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
@@ -998,7 +998,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
         return this.anyPlayerCloseEnoughForSpawning(this.getUpdatingChunkIfPresent(chunkcoordintpair.toLong()), chunkcoordintpair, reducedRange);
     }
 
-    final boolean anyPlayerCloseEnoughForSpawning(ChunkHolder playerchunk, ChunkPos chunkcoordintpair, boolean reducedRange) {
+    public final boolean anyPlayerCloseEnoughForSpawning(ChunkHolder playerchunk, ChunkPos chunkcoordintpair, boolean reducedRange) { // Purpur - package -> public
         // this function is so hot that removing the map lookup call can have an order of magnitude impact on its performance
         // tested and confirmed via System.nanoTime()
         com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> playersInRange = reducedRange ? playerchunk.playersInMobSpawnRange : playerchunk.playersInChunkTickRange;
diff --git a/src/main/java/net/minecraft/world/entity/ai/goal/EatBlockGoal.java b/src/main/java/net/minecraft/world/entity/ai/goal/EatBlockGoal.java
index 80aa539f7c6a6ee44338de084cdcdf5fb4ef996a..9c2c2b3557f4a70c6c965f159a57682e1827d1ad 100644
--- a/src/main/java/net/minecraft/world/entity/ai/goal/EatBlockGoal.java
+++ b/src/main/java/net/minecraft/world/entity/ai/goal/EatBlockGoal.java
@@ -31,6 +31,12 @@ public class EatBlockGoal extends Goal {
 
     @Override
     public boolean canUse() {
+        // Purpur start
+        net.minecraft.world.level.chunk.LevelChunk chunk = this.mob.level.getChunkIfLoaded(this.mob.blockPosition);
+        if (chunk == null || chunk.playerChunk == null || !((net.minecraft.server.level.ServerLevel) this.mob.level).getChunkSource().chunkMap.anyPlayerCloseEnoughForSpawning(chunk.playerChunk, this.mob.chunkPosition(), false)) {
+            return false;
+        }
+        // Purpur end
         if (this.mob.getRandom().nextInt(this.mob.isBaby() ? 50 : 1000) != 0) {
             return false;
         } else {