global.interact = 1;
if (fadein == 1 && vol < 0.9)
{
    vol += 0.01;
    caster_set_volume(specialsong, vol);
}
if (fadein == 2 && vol > 0)
{
    vol -= 0.02;
    caster_set_volume(specialsong, vol);
    if (vol < 0.02)
    {
        alarm[2] = 10;
        vol = 0;
    }
}
if (control_check_pressed(0) && vol > 0.6)
    fadein = 2;