private void OnCollisionEnter2D(Collision2D collision)
 {
     if (collision.collider.tag == "Wall" && collision.collider.gameObject != wall)
     {
         Debug.Log("Collided with wall");
         playerMovement mov = GetComponent <playerMovement>();
         wall = collision.collider.gameObject;
         mov.HitWall(wall);
     }
     else if (collision.collider.tag == "Floor")
     {
         wall = null;
     }
 }