From d01eef55a17b0d2c9ebec24bec84ed17299ad4de Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 7 Jan 2017 15:24:46 -0500
Subject: [PATCH] Provide E/TE/Chunk count stat methods

Provides counts without the ineffeciency of using .getEntities().size()
which creates copy of the collections.

diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index e516ec603..4fd6d3dbf 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -81,6 +81,29 @@ public class CraftWorld implements World {
     private int chunkLoadCount = 0;
     private int chunkGCTickCount;
 
+    // Paper start - Provide fast information methods
+    public int getEntityCount() {
+        return world.entityList.size();
+    }
+    public int getTileEntityCount() {
+        // We don't use the full world tile entity list, so we must iterate chunks
+        int size = 0;
+        for (net.minecraft.server.Chunk chunk : ((ChunkProviderServer) world.getChunkProvider()).chunks.values()) {
+            size += chunk.tileEntities.size();
+        }
+        return size;
+    }
+    public int getTickableTileEntityCount() {
+        return world.tileEntityListTick.size();
+    }
+    public int getChunkCount() {
+        return world.getChunkProviderServer().chunks.size();
+    }
+    public int getPlayerCount() {
+        return world.players.size();
+    }
+    // Paper end
+
     private static final Random rand = new Random();
 
     public CraftWorld(WorldServer world, ChunkGenerator gen, Environment env) {
-- 
2.18.0