Undertale Yellow script viewer

if (live_call())

    return global.live_result;

if (active == -1)

    exit;

var darkness_alpha = 0.6;

if (!surface_exists(lighting_surface))

    lighting_surface = surface_create(camera_get_view_width(view_camera[0]), camera_get_view_height(view_camera[0]));

if (surface_exists(lighting_surface))

{

    var view_x = camera_get_view_x(view_camera[0]);

    var view_y = camera_get_view_y(view_camera[0]);

    surface_set_target(lighting_surface);

    draw_set_color(c_black);

    draw_set_alpha(darkness_alpha);

    draw_rectangle(0, 0, room_width, room_height, false);

    draw_set_alpha(1);

    if (instance_exists(obj_factory_03_furnace_light))

    {

        with (obj_factory_03_furnace_light)

        {

            gpu_set_blendmode(bm_subtract);

            draw_sprite_ext(sprite_index, -1, x - view_x, y - view_y, 1, 1, image_angle, c_white, 1);

            gpu_set_blendmode(bm_normal);

        }

    }

    if (active == true)

    {

        gpu_set_blendmode(bm_subtract);

        draw_sprite_ext(spr_factory_03_axis_flashlight_mask, 0, x - view_x, y - view_y, 1, 1, image_angle, c_white, 1);

        gpu_set_blendmode(bm_normal);

    }

    surface_reset_target();

    draw_surface(lighting_surface, view_x, view_y);

}