void Update()
 {
     if (transform.childCount <= 0 && gm.gameState == GameManager.GameState.GAME)
     {
         gm.level++;
         if (gm.level % 2 == 1 && gm.level > 1)
         {
             gm.lives++;
         }
         paddleMovement.ResetPosition();
         ballMovement.ResetPosition();
         Spawn();
     }
 }