function dynaSurf_circle_fill(_x, _y, ss) {
	switch(round(ss)) {
		case 0 : 
		case 1 : 
			draw_point( _x, _y );
			break;
			
		case 2 : 
			draw_point( _x + 0, _y + 0 );
			draw_point( _x + 1, _y + 0 );
			draw_point( _x + 0, _y + 1 );
			draw_point( _x + 1, _y + 1 );
			break;
			
		case 3 : 
			draw_point( _x,     _y     );
			draw_point( _x - 1, _y     );
			draw_point( _x + 1, _y     );
			draw_point( _x,     _y + 1 );
			draw_point( _x,     _y - 1 );
			break;
			
		default : 
			draw_circle(_x, _y, ss - 2, false);
			break;
	}
}