From e7b5ab4f8db7b8af7de3f0f2cd3bc23fa2a2c83a Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 29 Jul 2018 11:58:05 -0400
Subject: [PATCH] Always process chunk registration after moving

This will help guarantee that entities are always in the
chunk that they are currently located at.

diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index 45e149f4a..fce677f9f 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -341,6 +341,7 @@ public abstract class Entity implements ICommandListener, KeyedObject { // Paper
         this.locX = d0;
         this.locY = d1;
         this.locZ = d2;
+        if (valid) world.entityJoinedWorld(this, false); // Paper - ensure Entity is moved to its proper chunk
         float f = this.width / 2.0F;
         float f1 = this.length;
 
@@ -986,6 +987,7 @@ public abstract class Entity implements ICommandListener, KeyedObject { // Paper
         this.locX = (axisalignedbb.a + axisalignedbb.d) / 2.0D;
         this.locY = axisalignedbb.b;
         this.locZ = (axisalignedbb.c + axisalignedbb.f) / 2.0D;
+        if (valid) world.entityJoinedWorld(this, false); // Paper - ensure Entity is moved to its proper chunk
     }
 
     protected SoundEffect ae() {
diff --git a/src/main/java/net/minecraft/server/EntityArrow.java b/src/main/java/net/minecraft/server/EntityArrow.java
index 8a9e16ad6..0b1d7a086 100644
--- a/src/main/java/net/minecraft/server/EntityArrow.java
+++ b/src/main/java/net/minecraft/server/EntityArrow.java
@@ -360,6 +360,7 @@ public abstract class EntityArrow extends Entity implements IProjectile {
             this.inGround = true;
             this.shake = 7;
             this.setCritical(false);
+            if (valid) world.entityJoinedWorld(this, false); // Paper - ensure Entity is moved to its proper chunk
             if (iblockdata.getMaterial() != Material.AIR) {
                 this.av.a(this.world, blockposition, iblockdata, (Entity) this);
             }
diff --git a/src/main/java/net/minecraft/server/EntityLeash.java b/src/main/java/net/minecraft/server/EntityLeash.java
index 7bd1c73bf..10a507595 100644
--- a/src/main/java/net/minecraft/server/EntityLeash.java
+++ b/src/main/java/net/minecraft/server/EntityLeash.java
@@ -31,6 +31,7 @@ public class EntityLeash extends EntityHanging {
         this.locX = (double) this.blockPosition.getX() + 0.5D;
         this.locY = (double) this.blockPosition.getY() + 0.5D;
         this.locZ = (double) this.blockPosition.getZ() + 0.5D;
+        if (valid) world.entityJoinedWorld(this, false); // Paper - ensure Entity is moved to its proper chunk
     }
 
     public void setDirection(EnumDirection enumdirection) {}
diff --git a/src/main/java/net/minecraft/server/EntityShulker.java b/src/main/java/net/minecraft/server/EntityShulker.java
index 3ce843199..ad7c95924 100644
--- a/src/main/java/net/minecraft/server/EntityShulker.java
+++ b/src/main/java/net/minecraft/server/EntityShulker.java
@@ -390,6 +390,7 @@ public class EntityShulker extends EntityGolem implements IMonster {
                 this.locX = (double) blockposition.getX() + 0.5D;
                 this.locY = (double) blockposition.getY();
                 this.locZ = (double) blockposition.getZ() + 0.5D;
+                if (valid) world.entityJoinedWorld(this, false); // Paper - ensure Entity is moved to its proper chunk
                 this.lastX = this.locX;
                 this.lastY = this.locY;
                 this.lastZ = this.locZ;
-- 
2.18.0