inline Get_dir16
inline int Get_dir16
inline Get_dir16	(	Game_object *from,	Game_object *to	)	{	Tile_coord t1 = from->get_abs_tile_coord();	Tile_coord t2 = to->get_abs_tile_coord();					// Treat as cartesian coords.	return Get_direction16(t1.ty - t2.ty, t2.tx - t1.tx);	}