From db28358316bbd46c60cb7f024d72480919222547 Mon Sep 17 00:00:00 2001
From: "Dylan K. Taylor" <dktapps@pmmp.io>
Date: Sun, 27 Jun 2021 17:50:39 +0100
Subject: [PATCH] Player: Assume that usedChunks was cleared by the previous
 loop

---
 src/player/Player.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/player/Player.php b/src/player/Player.php
index 8e18a1119..8ede64477 100644
--- a/src/player/Player.php
+++ b/src/player/Player.php
@@ -98,6 +98,7 @@ use pocketmine\permission\PermissibleBase;
 use pocketmine\permission\PermissibleDelegateTrait;
 use pocketmine\Server;
 use pocketmine\timings\Timings;
+use pocketmine\utils\AssumptionFailedError;
 use pocketmine\utils\TextFormat;
 use pocketmine\world\ChunkListener;
 use pocketmine\world\ChunkListenerNoOpTrait;
@@ -2002,7 +2003,9 @@ class Player extends Human implements CommandSender, ChunkListener, IPlayer{
 				$this->unloadChunk($chunkX, $chunkZ);
 			}
 		}
-		$this->usedChunks = [];
+		if(count($this->usedChunks) !== 0){
+			throw new AssumptionFailedError("Previous loop should have cleared this array");
+		}
 		$this->loadQueue = [];
 
 		$this->removeCurrentWindow();