Added some missing block properties

src/pocketmine/block/Bedrock.php

@@ -27,6 +27,21 @@ use pocketmine\item\Item;
 
 class Bedrock extends Solid{
 
+	/** @var bool */
+	private $burnsForever = false;
+
+	public function readStateFromData(int $id, int $stateMeta) : void{
+		$this->burnsForever = $stateMeta !== 0;
+	}
+
+	protected function writeStateToMeta() : int{
+		return $this->burnsForever ? 1 : 0;
+	}
+
+	public function getStateBitmask() : int{
+		return 0b1;
+	}
+
 	public function getHardness() : float{
 		return -1;
 	}
@@ -38,4 +53,8 @@ class Bedrock extends Solid{
 	public function isBreakable(Item $item) : bool{
 		return false;
 	}
+
+	public function burnsForever() : bool{
+		return $this->burnsForever;
+	}
 }

src/pocketmine/block/TNT.php

@@ -40,10 +40,33 @@ use const M_PI;
 
 class TNT extends Solid{
 
+	/** @var bool */
+	protected $unstable = false; //TODO: Usage unclear, seems to be a weird hack in vanilla
+
+	public function readStateFromData(int $id, int $stateMeta) : void{
+		$this->unstable = $stateMeta !== 0;
+	}
+
+	protected function writeStateToMeta() : int{
+		return $this->unstable ? 1 : 0;
+	}
+
+	public function getStateBitmask() : int{
+		return 0b1;
+	}
+
 	public function getHardness() : float{
 		return 0;
 	}
 
+	public function onBreak(Item $item, ?Player $player = null) : bool{
+		if($this->unstable){
+			$this->ignite();
+			return true;
+		}
+		return parent::onBreak($item, $player);
+	}
+
 	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($item instanceof FlintSteel or $item->hasEnchantment(Enchantment::FIRE_ASPECT())){
 			if($item instanceof Durable){