// glow_draw(sprite, subimg, x, y, alpha);
// Copyright 2012   ing. Guus Thissen aka Phantom107

draw_set_color(c_white);
var i, a, o;
i = -1;
repeat 11
begin
    i += 1;

    a = lengthdir_x(argument4, 270+180*(i/9));
    o = (i-6)*4 + 24;
    draw_surface_ext(glow_surface, argument2+o-18, argument3, 2, 2, 0, c_white, a);
    draw_set_blend_mode(bm_subtract);
    draw_sprite_ext(argument0, argument1, argument2, argument3, image_xscale, image_yscale, 0, c_white, 1);
    draw_set_blend_mode(bm_normal);
    draw_surface_ext(glow_surface, argument2, argument3+o-18, 2, 2, 0, c_white, a);
    draw_set_blend_mode(bm_subtract);
    draw_sprite_ext(argument0, argument1, argument2, argument3, image_xscale, image_yscale, 0, c_white, 1);
    draw_set_blend_mode(bm_normal);
end;
draw_sprite_ext(argument0, argument1, argument2, argument3, image_xscale, image_yscale, 0, c_white, 0.5);