growth = 0;
if (timer < maxtimer && growcon == 1)
    growth = 1;
if (timer > 0 && growcon == 3)
    growth = 1;
if (growth == 1)
{
    if (growcon == 1)
        timer += 1;
    if (growcon == 3)
        timer -= 1;
    image_xscale = 2 * (timer / maxtimer);
    image_yscale = 2 * (timer / maxtimer);
    image_angle = 180 + (180 * (timer / maxtimer));
    image_alpha = 0.5 + ((timer / maxtimer) * 0.5);
    d = instance_create_ch1(x, y, obj_afterimage_ch1);
    d.sprite_index = sprite_index;
    d.image_xscale = image_xscale;
    d.image_yscale = image_yscale;
    d.image_angle = image_angle;
    d.depth = depth - 1;
    d.image_blend = image_blend;
    d.image_alpha = (1 - image_alpha) + 0.1;
    d.image_speed = 0;
    if (timer >= maxtimer && growcon == 1)
    {
        growcon = 2;
        image_angle = 0;
    }
    if (timer <= 0 && growcon == 3)
        instance_destroy();
}