papermc/CraftBukkit-Patches/0023-Improved-tile-entity-lookup-for-chunk-sending.patch

From 783430598f8aad57eccc92ccd75fc54926cf2e4a 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 eb07d8e..410148f 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
                 }
             }
 
-- 
1.8.2.1