Динамическое обновление ассетов в XNA

public class AutoReloadedAssetManager : DrawableGameComponent
{
	private readonly List<AutoReloadedAsset> assets =
		new List<AutoReloadedAsset>();
	private bool loaded;
	public ReadOnlyCollection<AutoReloadedAsset> Assets { get; private set; }
 
	public AutoReloadedAssetManager(Game game)
		: base(game)
	{
		Assets = new ReadOnlyCollection<AutoReloadedAsset>(assets);
 
		// используем событие Activated чтобы занть
		// когда пользователь вернулся в игру
		game.Activated += game_Activated;
	}
 
	public void AddAsset(AutoReloadedAsset asset)
	{
		if (assets.Contains(asset))
			return;
 
		assets.Add(asset);
 
		if (loaded)
		{
			asset.FileWriteDate = File.GetLastWriteTime(asset.FilePath);
			asset.Load(GraphicsDevice);
		}
	}
 
	public bool RemoveAsset(AutoReloadedAsset asset)
	{
		return assets.Remove(asset);
	}
 
	protected override void LoadContent()
	{
		foreach (var a in Assets)
		{
			a.FileWriteDate = File.GetLastWriteTime(a.FilePath);
			a.Load(GraphicsDevice);
		}
 
		loaded = true;
	}
 
	void game_Activated(object sender, EventArgs e)
	{
		foreach (var a in Assets)
		{
			DateTime fileWriteDate = File.GetLastWriteTime(a.FilePath);
			if (fileWriteDate.CompareTo(a.FileWriteDate) > 0)
			{
				a.FileWriteDate = fileWriteDate;
				a.Load(GraphicsDevice);
			}
		}
	}
}