From 4bdd6410db2636fb521c155eced5c385014e2ead Mon Sep 17 00:00:00 2001
From: "Dylan K. Taylor" <dktapps@pmmp.io>
Date: Thu, 20 Jul 2023 17:00:32 +0100
Subject: [PATCH] Fire: fixed support requirements closes #5599

---
 src/block/Fire.php | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/block/Fire.php b/src/block/Fire.php
index 648724529..0f2f7c876 100644
--- a/src/block/Fire.php
+++ b/src/block/Fire.php
@@ -24,6 +24,7 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\utils\BlockDataSerializer;
+use pocketmine\block\utils\SupportType;
 use pocketmine\entity\Entity;
 use pocketmine\entity\projectile\Arrow;
 use pocketmine\event\block\BlockBurnEvent;
@@ -99,9 +100,13 @@ class Fire extends Flowable{
 		return [];
 	}
 
+	private function canBeSupportedBy(Block $block) : bool{
+		return $block->getSupportType(Facing::UP)->equals(SupportType::FULL());
+	}
+
 	public function onNearbyBlockChange() : void{
 		$world = $this->position->getWorld();
-		if($this->getSide(Facing::DOWN)->isTransparent() && !$this->hasAdjacentFlammableBlocks()){
+		if(!$this->canBeSupportedBy($this->getSide(Facing::DOWN)) && !$this->hasAdjacentFlammableBlocks()){
 			$world->setBlock($this->position, VanillaBlocks::AIR());
 		}else{
 			$world->scheduleDelayedBlockUpdate($this->position, mt_rand(30, 40));