if (image_index > 3)
    draw_sprite_ext(spr_enemy_aqua_knife_ready, image_index - 4, x, y, image_xscale, image_yscale, image_angle, image_blend, image_alpha);
draw_self();
if (!surface_exists(knife_surface))
    knife_surface = surface_create(142, 142);
surface_set_target(knife_surface);
draw_clear_alpha(c_black, 0);
d3d_set_fog(true, c_dkgray, 0, 0);
with (obj_bullet_knife)
{
    if (sprite_index == spr_attack_knifechain_spin)
        draw_sprite_ext(sprite_index, image_index, x - (scr_get_box(2) + 5), y - (scr_get_box(1) + 5), image_xscale, image_yscale, image_angle, image_blend, image_alpha);
}
d3d_set_fog(false, c_gray, 0, 0);
surface_reset_target();
draw_surface(knife_surface, scr_get_box(2) + 5, scr_get_box(1) + 5);