public void PutDown()
{
if (carrying != null)
{
carrying.PutDown();
carrying = null;
}
}
void OnTriggerStay(Collider pick)
{
Liftable liftable = pick.GetComponent <Liftable> ();
if (liftable != null)
{
liftable.enabled = true;
if (Input.GetMouseButtonDown(0))
{
liftable.PickingUp(guide);
}
if (Input.GetMouseButtonUp(0))
{
liftable.PutDown();
}
}
}