siner += 1;
ac = sin(siner / 60) * 0.12;
for (s = 0; s < 50; s += 1)
{
    draw_set_color(c_white);
    ac = sin((s + siner) / 35) * 0.15;
    draw_set_alpha((0.5 + ac) - (s / 40));
    ossafe_fill_rectangle(x + (s * 2), y + (s * 2), x + (s * 2) + 2, y + 100);
}