private Gob gobatpos(Coord c) {
		for (Sprite.Part d : obscured) {
			Gob gob = (Gob) d.owner;
			if (gob == null)
				continue;
			if (d.checkhit(c.add(gob.sc.inv())))
				return (gob);
		}
		for (Sprite.Part d : clickable) {
			Gob gob = (Gob) d.owner;
			if (gob == null)
				continue;
			if (d.checkhit(c.add(gob.sc.inv())))
				return (gob);
		}
		return (null);
	}