papermc/CraftBukkit-Patches/0026-Improved-tile-entity-lookup-for-chunk-sending.patch

From 97eec6581627bdf80b2a93870f9ebe70e619e46c Mon Sep 17 00:00:00 2001
From: shakytom <tom.roberts00@gmail.com>
Date: Wed, 20 Feb 2013 22:34:38 -0500
Subject: [PATCH] Improved tile entity lookup for chunk sending

Instead of scanning the entire worlds tile entities to find out what tile entities are in the chunk... just use the arraylist of tile entities we already have.
This results in a good reduction of time spent in player ticking.
---
 src/main/java/net/minecraft/server/EntityPlayer.java | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/main/java/net/minecraft/server/EntityPlayer.java b/src/main/java/net/minecraft/server/EntityPlayer.java
index 573c0f0..e6c5f91 100644
--- a/src/main/java/net/minecraft/server/EntityPlayer.java
+++ b/src/main/java/net/minecraft/server/EntityPlayer.java
@@ -173,8 +173,9 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
 
                 iterator1.remove();
                 if (chunkcoordintpair != null && this.world.isLoaded(chunkcoordintpair.x << 4, 0, chunkcoordintpair.z << 4)) {
-                    arraylist.add(this.world.getChunkAt(chunkcoordintpair.x, chunkcoordintpair.z));
-                    arraylist1.addAll(((WorldServer) this.world).getTileEntities(chunkcoordintpair.x * 16, 0, chunkcoordintpair.z * 16, chunkcoordintpair.x * 16 + 16, 256, chunkcoordintpair.z * 16 + 16));
+                    Chunk chunk = this.world.getChunkAt(chunkcoordintpair.x, chunkcoordintpair.z); // Spigot
+                    arraylist.add(chunk); // Spigot
+                    arraylist1.addAll(chunk.tileEntities.values()); // Spigot
                 }
             }
 
-- 
1.8.2