private void ItemDestroy(object sender, EventArgs e)
{
IDestroyNotifier item = (IDestroyNotifier)sender;
item.Destroy -= ItemDestroy;
items.Remove(item);
ItemDestroyed?.Invoke(this, new DestroyedItemEventArgs(item));
}
public DestroyedItemEventArgs(IDestroyNotifier destroyedItem)
{
DestroyedItem = destroyedItem;
}
public void Add(IDestroyNotifier item)
{
items.Add(item);
item.Destroy += ItemDestroy;
}
