Paper/Spigot-Server-Patches/0291-Don-t-process-despawn-if-entity-is-in-a-chunk-schedu.patch

From 2bdea8b9e4d2c2450e2a4fe8e414764dcb9266cf Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 19 Jul 2018 01:23:00 -0400
Subject: [PATCH] Don't process despawn if entity is in a chunk scheduled for
 unload

This won't happen anyways if the user has
"skip ticking for entities in chunks scheduled for unload" turned on,
but if they don't, protect from this instant killing the entity to
keep it vanilla in behavior

a player may teleport away, and trigger instant despawn

diff --git a/src/main/java/net/minecraft/server/EntityInsentient.java b/src/main/java/net/minecraft/server/EntityInsentient.java
index 04a1218ed9..141db48f16 100644
--- a/src/main/java/net/minecraft/server/EntityInsentient.java
+++ b/src/main/java/net/minecraft/server/EntityInsentient.java
@@ -623,6 +623,8 @@ public abstract class EntityInsentient extends EntityLiving {
         if (this.persistent) {
             this.ticksFarFromPlayer = 0;
         } else {
+            Chunk currentChunk = getChunkAtLocation(); // Paper
+            if (currentChunk != null && currentChunk.scheduledForUnload != null) return; // Paper
             EntityHuman entityhuman = this.world.findNearbyPlayer(this, -1.0D);
 
             if (entityhuman != null && entityhuman.affectsSpawning) { // Paper - Affects Spawning API
-- 
2.18.0