if (!_active)
    exit;
_timer++;
if ((_timer % 4) == 0)
{
    var shine = instance_create(_parent.x + irandom_range(-30, 30), _parent.y - 10, obj_afterimage);
    shine.image_speed = 0.25;
    shine.image_alpha = _sparkle_alpha;
    shine.sprite_index = spr_shine;
    shine.visible = true;
    shine.gravity = 0.25;
    shine.depth = _target_depth;
    scr_darksize(shine);
}