sn += 1;
draw_sprite(spr_redpipe_top, floor(sn / 4), x, y);
draw_sprite(spr_redpipe_bottom, floor(sn / 4), x, y + 16 + ((image_yscale - 1) * 19));
for (i = 0; i < image_yscale; i += 1)
    draw_sprite(spr_redpipe_middle, floor(sn / 4), x, y + 1 + (i * 19));