if (image_speed > 0 && image_index >= (image_number - 1))
{
    with (id_bull)
        alarm[1] = warning_alarm;
    image_speed = 0;
    image_index = image_number - 1;
}
if (image_speed < 0)
{
    if (image_index != (image_number - 1))
        can_disappear = true;
    if ((image_index <= 0 || image_index == (image_number - 1)) && can_disappear == true)
    {
        image_speed = 0;
        image_index = 0;
    }
}