void OnCollisionEnter2D(Collision2D col)
 {
     if (col.gameObject.tag == "Player"){
         if(!isFish){
             player = col.gameObject.GetComponent<PlayerControl>();
             player.pickupCollectible(this.gameObject);
             followPlayer = true;
             this.collider2D.enabled = false;
             ps.Stop();
         } else {
             runAway = true;
             this.collider2D.enabled = false;
             ps.Stop();
         }
      }
 }