(1 + obj->get_tx())*tilesize
(1 + obj->get_tx())*tilesize - 1
	void get_shape_location(Game_object *obj, int& x, int& y)		{		x = (obj->get_cx() - chunkx)*chunksize +				(1 + obj->get_tx())*tilesize						- 4*obj->get_lift();		y = (obj->get_cy() - chunky)*chunksize +				(1 + obj->get_ty())*tilesize						- 4*obj->get_lift();		}