Dont eat blocks in non ticking chunks

patches/server/0259-Dont-eat-blocks-in-non-ticking-chunks.patch

@@ -0,0 +1,36 @@
+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
+
+
+diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
+index 35bb7a3502c90462eb2d67e23bddb18030f40ad1..892d4914efe022619d061fc3e4b8a29a0adf6b68 100644
+--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
++++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
+@@ -1748,7 +1748,7 @@ 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 8a4080a77bd5b73ac812e3ae67c6f21dcd270215..16e66ae7cf761fabb74a035e2fd8c28615365dc2 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
+@@ -32,6 +32,12 @@ 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 {