function scr_afterimage_ch1()
{
    afterimage = instance_create_ch1(x, y, obj_afterimage_ch1);
    afterimage.sprite_index = sprite_index;
    afterimage.image_index = image_index;
    afterimage.image_blend = image_blend;
    afterimage.image_speed = 0;
    afterimage.depth = depth;
    afterimage.image_xscale = image_xscale;
    afterimage.image_yscale = image_yscale;
    afterimage.image_angle = image_angle;
    return afterimage;
}