function scr_getboxbounds()
{
    if (instance_exists(obj_growtangle))
    {
        minx = obj_growtangle.x - (obj_growtangle.sprite_width / 2);
        maxx = obj_growtangle.x + (obj_growtangle.sprite_width / 2);
        miny = obj_growtangle.y - (obj_growtangle.sprite_height / 2);
        maxy = obj_growtangle.y + (obj_growtangle.sprite_height / 2);
    }
    else
    {
        minx = 999;
        maxx = 999;
        miny = 999;
        maxy = 999;
    }
}