Entity damage problems

So i spawned a entity(FallingSand) and i tried hitting it and it wont do any damage here is my code(i also tried to output to console and nothing worked at all) the entity spawns perfectly

Code:

PHP:

public function spawnEgg($id = 122, $damage = 0, Player $player){
        $pos1 = $player->getPosition();
        $block1 = Entity::createEntity("FallingSand", $player->getLevel(), new CompoundTag("", [
            "Pos" => new ListTag("Pos", [
                new DoubleTag("", $pos1->x),
                new DoubleTag("", $pos1->y),
                new DoubleTag("", $pos1->z)
            ]),
            "Motion" => new ListTag("Motion", [
                new DoubleTag("", 0),
                new DoubleTag("", 0),
                new DoubleTag("", 0)
            ]),
            "Rotation" => new ListTag("Rotation", [
                new FloatTag("", 0),
                new FloatTag("", 0)
            ]),
            "TileID" => new IntTag("TileID", $id),
            "Data" => new ByteTag("Data", $damage),
        ]));

        $block1->spawnToAll();
        if($block1 instanceof FallingSand){
            $this->block[$block1->getBlock()] = 100;
        }
    }

    public function onHit(EntityDamageEvent $ev){
        $entity = $ev->getEntity();
        if($entity instanceof FallingSand){
           if(isset($this->block[$entity->getBlock()])){
               $damage = $ev->getOriginalDamage();
               $this->block[$entity->getBlock()] = ($this->block[$entity->getBlock()] - $damage);
               if($damage >= $this->block[$entity->getBlock()]){
                   $entity->close();
               }
               $blockEvent = new EntityDamageEvent($entity, EntityDamageEvent::CAUSE_VOID, $damage);
               $entity->attack($damage, $blockEvent);
               echo $this->block[$entity->getBlock()];
           }
        }

 

Its because of this line https://github.com/pmmp/PocketMine-MP/blob/master/src/pocketmine/entity/FallingSand.php#L75
If you want it to deal damage i think the only quick way is to modify the source

 

But if you do parent::attack() from your class that extends it will call FallingSand::attack() and it would stop there as it would not be void damage :/
If you want to do it that way you need to copy FallingSand class into the plugin, modify then Entity::registerEntity()

 

Hmm then it should work if you extend FallingSand and then copy method attack() from Entity

 

Just call Entity::attack() from your custom falling sand's attack function to call pocketmine/entity/Entity.php's attack method.

 

How do you do that? I've only know parent::attack() and copying attack() from Entity works

 

Ohhh I didn't know that will work! I've learned something new today! I've always thought it will call it statically