From fe4b5498e6deacc0d22d4137fd7a54f857fc12f1 Mon Sep 17 00:00:00 2001
From: "Dylan K. Taylor" <odigiman@gmail.com>
Date: Fri, 12 Jan 2018 11:02:43 +0000
Subject: [PATCH] Level: Fixed 2D block cache not getting counted correctly
 Fixes #1903 Closes #1906, which, while a pretty solution, is very inefficient
 (see PR discussion). This is an optimization of microscopic proportions, but
 the point still stands.

---
 src/pocketmine/level/Level.php | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/pocketmine/level/Level.php b/src/pocketmine/level/Level.php
index 86cb5c718..35fdc339e 100644
--- a/src/pocketmine/level/Level.php
+++ b/src/pocketmine/level/Level.php
@@ -932,8 +932,13 @@ class Level implements ChunkManager, Metadatable{
 			$this->chunkCache = [];
 			$this->blockCache = [];
 		}else{
-			if(count($this->blockCache) > 2048){
-				$this->blockCache = [];
+			$count = 0;
+			foreach($this->blockCache as $list){
+				$count += count($list);
+				if($count > 2048){
+					$this->blockCache = [];
+					break;
+				}
 			}
 		}
 	}