Properly mark firework as non-saveable with chunk

Author: dktapps

src/entity/object/FireworkRocket.php

@@ -29,6 +29,7 @@
 use pocketmine\entity\Explosive;
 use pocketmine\entity\Living;
 use pocketmine\entity\Location;
+use pocketmine\entity\NeverSavedWithChunkEntity;
 use pocketmine\event\entity\EntityDamageByEntityEvent;
 use pocketmine\event\entity\EntityDamageEvent;
 use pocketmine\item\FireworkRocket as FireworkItem;
@@ -46,7 +47,7 @@
 use function count;
 use function sqrt;
 
-class FireworkRocket extends Entity implements Explosive{
+class FireworkRocket extends Entity implements Explosive, NeverSavedWithChunkEntity{
 
 	public static function getNetworkTypeId() : string{ return EntityIds::FIREWORKS_ROCKET; }
 
@@ -113,14 +114,6 @@ public function setExplosions(array $explosions) : self{
 		return $this;
 	}
 
-	/**
-	 * TODO: The entity should be saved and loaded, but this is not possible.
-	 * @see https://bugs.mojang.com/browse/MCPE-165230
-	 */
-	public function canSaveWithChunk() : bool{
-		return false;
-	}
-
 	protected function onFirstUpdate(int $currentTick) : void{
 		parent::onFirstUpdate($currentTick);