private void OnTriggerEnter2D(Collider2D collision)
{
var rb = collision.attachedRigidbody;
if (rb.gameObject.tag == "PickupSub")
{
rb.gameObject.tag = "Done";
Debug.Log("Score!");
Destroy(rb.gameObject, 0.5f);
sb.BroadcastMessage("GainFuel", 2000f);
}
}