public class Game
{
    private const string GameSettingsAssetFile = "GameSettings";

    private static Game instance;
    public static Game My
    {
        get
        {
            if (instance == null)
                instance = new Game();
            return instance;
        }
    }

    private GameSettings settings;

    private Game()
    {
        settings = LoadGameSettings();
        if (settings == null)
        {
            Debug.LogErrorFormat("Can't find game settings! Settings path '{0}'.", GameSettingsAssetFile);
            return;
        }
    }

    private GameSettings LoadGameSettings()
    {
        return (GameSettings)Resources.Load(GameSettingsAssetFile, typeof(GameSettings));
    }
}