From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Beech Horn <beechhorn@gmail.com>
Date: Mon, 7 Dec 2020 21:16:51 +0200
Subject: [PATCH] Do not update distance map when animal and mob spawning is
 disabled in the particular world

Original author: Beech Horn <beechhorn@gmail.com>
Licensed under Bukkit and CraftBukkit's original license, GPLv3
The following patch should be treated as it is licensed in GPLv3

diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
index 12d9b73ccc2f4406957932397746cac7902d650e..a0d4a175720a2285dca2eaee96fc614104a76bcc 100644
--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
+++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
@@ -982,7 +982,7 @@ public class ChunkProviderServer extends IChunkProvider {
             int l = this.chunkMapDistance.b();
             // Paper start - per player mob spawning
             SpawnerCreature.d spawnercreature_d; // moved down
-            if (this.playerChunkMap.playerMobDistanceMap != null) {
+            if ((this.allowAnimals || this.allowMonsters) && this.playerChunkMap.playerMobDistanceMap != null) { // Yatopia
                 // update distance map
                 this.world.timings.playerMobDistanceMapUpdate.startTiming();
                 this.playerChunkMap.playerMobDistanceMap.update(this.world.players, this.playerChunkMap.viewDistance);