/// <summary>
/// Registers a callback for when a Token has changed.
/// </summary>
public static void RegisterCallback(GameTokenCallback callback)
{
if (!callbacks.Contains(callback))
{
callbacks.Add(callback);
}
}
/// <summary>
/// Removes a callback if it has been registered.
/// </summary>
/// <param name="callback"></param>
public static void UnregisterCallback(GameTokenCallback callback)
{
if (callbacks.Contains(callback))
{
callbacks.Remove(callback);
}
}