From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Beech Horn <beechhorn@gmail.com>
Date: Fri, 14 Feb 2020 19:39:59 +0000
Subject: [PATCH] Skip distance map update when spawning disabled.


diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
index 75d25576d68ec95a14372f8530f4916f2bd7c3c5..96a6f4675dc10a0047b7d2ee4164d0376de36c27 100644
--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
+++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
@@ -792,7 +792,7 @@ 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) { // don't update when animals and monsters are disabled
                 // update distance map
                 this.world.timings.playerMobDistanceMapUpdate.startTiming();
                 this.playerChunkMap.playerMobDistanceMap.update(this.world.players, this.playerChunkMap.viewDistance);