void paint_invisible(int xoff, int yoff, int shapenum, int framenum)
inline void paint_invisible(int xoff, int yoff, Shape_frame *shape)
	void paint_invisible(int xoff, int yoff, int shapenum, int framenum)		{		Shape_frame *shape = get_shape(shapenum, framenum);		if (shape)			shape->paint_rle_transformed(win->get_ib8(),						xoff, yoff, invis_xform);		}