public void NotifyObservers()
{
IEnumerator <IQuackable> enumerator = Quackers.GetEnumerator();
while (enumerator.MoveNext())
{
enumerator.Current.NotifyObservers();
}
}
public void Quack()
{
IEnumerator <IQuackable> enumerator = Quackers.GetEnumerator();
while (enumerator.MoveNext())
{
enumerator.Current.Quack();
}
}
public void RegisterObserver(IQuackObserver observer)
{
IEnumerator <IQuackable> enumerator = Quackers.GetEnumerator();
while (enumerator.MoveNext())
{
enumerator.Current.RegisterObserver(observer);
}
}
public void Add(IQuackable quackable) => Quackers.Add(quackable);