private void OnTriggerEnter(Collider other)
 {
     //if(item == null) return;
     if (other.tag == "Player" && item.CanPlayerPickItem(other.GetComponent <unitHitbox>()) && !startDraining)
     {
         item.StartCoroutine(item.moveToPicker(other.transform));
         startDraining = true;
     }
 }