/// <summary>
/// Adds a key taken listener to a list of key taken listeners.
/// </summary>
/// <param name="listener"></param>
public void AddKeyTakenListener(IKeyTakenListener listener)
{
keyTakenListeners.Add(listener);
}
/// <summary>
/// Removes given key taken listener from a list of key taken listeners.
/// </summary>
/// <param name="listener"></param>
public void RemoveKeyTakenListener(IKeyTakenListener listener)
{
keyTakenListeners.Remove(listener);
}
