/// <summary>
/// 处理事件结点。
/// </summary>
/// <param name="sender">事件源。</param>
/// <param name="e">事件参数。</param>
private void HandleEvent(object sender, T e)
{
bool noHandlerException = false;
if (_eventHandlers.TryGetValue(e.Id, out LinkedListRange <EventHandler <T> > range))
{
LinkedListNode <EventHandler <T> > current = range.First;
while (current != null && current != range.Terminal)
{
_cachedNodes[e] = current.Next != range.Terminal ? current.Next : null;
current.Value(sender, e);
current = _cachedNodes[e];
}
_cachedNodes.Remove(e);
}
else if (_defaultHandler != null)
{
_defaultHandler(sender, e);
}
else if ((_eventPoolMode & EventPoolMode.AllowNoHandler) == 0)
{
noHandlerException = true;
}
ReferencePool.Return(e);
if (noHandlerException)
{
throw new GameException(Utility.Text.Format("Event '{0}' not allow no handler.", e.Id.ToString()));
}
}
/// <summary>
/// 事件池轮询。
/// </summary>
public void Update(float deltaTime)
{
while (_events.Count > 0)
{
Event eventNode = null;
lock (_events)
{
eventNode = _events.Dequeue();
HandleEvent(eventNode.Sender, eventNode.EventArgs);
}
ReferencePool.Return(eventNode);
}
}
/// <summary>
/// 关闭并清理有限状态机。
/// </summary>
internal override void Shutdown()
{
ReferencePool.Return(this);
}