From 94f4ef5862de594daa21bf3cf51bdd7e48c25e01 Mon Sep 17 00:00:00 2001
From: "Dylan K. Taylor" <dktapps@pmmp.io>
Date: Mon, 25 Oct 2021 21:07:03 +0100
Subject: [PATCH] PopulationTask: Throw AssumptionFailedError if center chunk
 is null for some reason

---
 src/world/generator/PopulationTask.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/world/generator/PopulationTask.php b/src/world/generator/PopulationTask.php
index 2f601a80d..2cd68ebde 100644
--- a/src/world/generator/PopulationTask.php
+++ b/src/world/generator/PopulationTask.php
@@ -149,7 +149,9 @@ class PopulationTask extends AsyncTask{
 		/** @var World $world */
 		$world = $this->fetchLocal(self::TLS_KEY_WORLD);
 		if($world->isLoaded()){
-			$chunk = $this->chunk !== null ? FastChunkSerializer::deserializeTerrain($this->chunk) : null;
+			$chunk = $this->chunk !== null ?
+				FastChunkSerializer::deserializeTerrain($this->chunk) :
+				throw new AssumptionFailedError("Center chunk should never be null");
 
 			for($i = 0; $i < 9; ++$i){
 				if($i === 4){