internal static IEnumerable<TextureFrame> LoadAtals(Assets assets, string fileName)
{
if (string.IsNullOrWhiteSpace(fileName))
throw new ArgumentNullException(nameof(fileName));
var ext = Path.GetExtension(fileName).ToUpper();
AtlasLoader loader;
if (!_loaders.TryGetValue(ext, out loader))
throw new Exception($"Loader for extension {ext} not registered");
var texture = assets.LoadTexture2D(Path.GetFileNameWithoutExtension(fileName));
var atalsData = assets.LoadText(fileName);
return loader.LoadAtals(texture, atalsData);
}
