public static SetAltTexture Instance(int index)
 {
     SetAltTexture ret;
     if (!instances.TryGetValue(index, out ret))
         ret = instances[index] = new SetAltTexture(index);
     return ret;
 }
        public static SetAltTexture Instance(int index)
        {
            SetAltTexture ret;

            if (!instances.TryGetValue(index, out ret))
            {
                ret = instances[index] = new SetAltTexture(index);
            }
            return(ret);
        }