From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Cryptite <cryptite@gmail.com>
Date: Thu, 7 Dec 2023 08:48:41 -0600
Subject: [PATCH] Player spawnsOwnMobs


diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
index acbcdc8cb1523044b1657e03a141fae6389a3686..000a2c8d30d7d72a460e2fc6205088b81a8bfe3a 100644
--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
@@ -521,7 +521,7 @@ public class ServerChunkCache extends ChunkSource {
             // Paper start - optimize isOutisdeRange
             ChunkMap playerChunkMap = this.chunkMap;
             for (ServerPlayer player : this.level.players) {
-                if (!player.affectsSpawning || player.isSpectator()) {
+                if (!player.affectsSpawning || player.isSpectator() || player.spawnsOwnMobs) { // Slice
                     playerChunkMap.playerMobSpawnMap.remove(player);
                     continue;
                 }
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 564591e9f18dd6bb0f76ae4f153adcc0a228d4fa..578535732d442b524536bdd76d6a4badeed84fbd 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -770,7 +770,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
         // Paper start - optimise checkDespawn
         this.playersAffectingSpawning.clear();
         for (ServerPlayer player : this.players) {
-            if (net.minecraft.world.entity.EntitySelector.PLAYER_AFFECTS_SPAWNING.test(player)) {
+            if (!player.spawnsOwnMobs && net.minecraft.world.entity.EntitySelector.PLAYER_AFFECTS_SPAWNING.test(player)) { // Slice
                 this.playersAffectingSpawning.add(player);
             }
         }
diff --git a/src/main/java/net/minecraft/world/entity/player/Player.java b/src/main/java/net/minecraft/world/entity/player/Player.java
index 15515e871c89498ec936ab24871741f883f18a3b..16fbdbe12d54fbc8d54403979ee2a89322a14dd2 100644
--- a/src/main/java/net/minecraft/world/entity/player/Player.java
+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
@@ -188,6 +188,8 @@ public abstract class Player extends LivingEntity {
     public net.kyori.adventure.util.TriState flyingFallDamage = net.kyori.adventure.util.TriState.NOT_SET;
     // Paper end
 
+    public boolean spawnsOwnMobs = false; // Slice
+
     // CraftBukkit start
     public boolean fauxSleeping;
     public int oldLevel = -1;