private void OnTriggerEnter2D(Collider2D collider)
 {
     if (collider.name.Equals("Player"))
     {
         if (collider.GetType() == typeof(BoxCollider2D))
         {
             worldScript.load("MainMenu");
         }
     }
     else if (collider.name.Equals("Enemy") || collider.name.Equals("StoneEnemy"))
     {
         EnemyMovement enemy = collider.transform.gameObject.GetComponent <EnemyMovement>();
         enemy.destroySelf();
     }
 }