if (bull == 0)
{
    siny += 1;
    y = yo + (sin(siny / 30) * 9);
    yo += vspeed;
    if (alphaup == 1 && image_alpha < 1)
        image_alpha += 0.05;
}
if (shake > 0)
{
    shack += 1;
    if (shack == 2)
    {
        x = xstart + (((random(shake) * 2) - shake) / 2);
        y = ystart + (((random(shake) * 2) - shake) / 2);
        shack = 0;
    }
}