Prevent entities from moving in unloaded chunks

patches/server/0050-Prevent-entities-from-moving-in-unloaded-chunks.patch

@@ -0,0 +1,24 @@
+From d1315aeff30dfaa93dec34425ac1e3c0e4ee0ce1 Mon Sep 17 00:00:00 2001
+From: William Blake Galbreath <blake.galbreath@gmail.com>
+Date: Fri, 12 Jul 2019 16:18:55 -0500
+Subject: [PATCH] Prevent entities from moving in unloaded chunks
+
+---
+ src/main/java/net/minecraft/server/Entity.java | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
+index f1975fa36e..23fea2b6e8 100644
+--- a/src/main/java/net/minecraft/server/Entity.java
++++ b/src/main/java/net/minecraft/server/Entity.java
+@@ -576,6 +576,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
+             int j = MathHelper.floor(this.locY - 0.20000000298023224D);
+             int k = MathHelper.floor(this.locZ);
+             BlockPosition blockposition = new BlockPosition(i, j, k);
++            if (!world.isLoaded(blockposition)) return; // Purpur
+             IBlockData iblockdata = this.world.getType(blockposition);
+ 
+             if (iblockdata.isAir()) {
+-- 
+2.20.1
+