128 lines
4.1 KiB
C#
128 lines
4.1 KiB
C#
using System;
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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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namespace CG.Framework
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{
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/// <summary>
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/// 事件系统
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/// </summary>
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public class EventManager : IEventManager
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{
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//容器
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public Dictionary<Type, EventHandler> delegates;
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public Dictionary<Delegate, EventHandler> delegatesLookup;
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public EventManager()
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{
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this.delegates = new Dictionary<Type, EventHandler>();
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this.delegatesLookup = new Dictionary<Delegate, EventHandler>();
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}
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public void AddListener<T>(EventHandler<T> del) where T : IGameEvent
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{
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if (!delegatesLookup.ContainsKey(del))
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{
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EventHandler eventHandler = delegate (IGameEvent e)
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{
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del((T)e);
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};
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delegatesLookup[del] = eventHandler;
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if (delegates.TryGetValue(typeof(T), out var value))
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{
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value = (delegates[typeof(T)] = (EventHandler)Delegate.Combine(value, eventHandler));
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}
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else
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{
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delegates[typeof(T)] = eventHandler;
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}
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}
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}
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public void Clear()
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{
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delegates.Clear();
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delegatesLookup.Clear();
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}
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public void Raise(IGameEvent e)
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{
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EventHandler eventHandler;
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if (delegates.TryGetValue(e.GetType(), out eventHandler))
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{
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Delegate[] delegates_array = eventHandler.GetInvocationList();
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int length = delegates_array.Length;
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WDebug.Log("[EventManager.Raise]注册的事件集合长度" + ((int)length));
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for (int i = 0; i < length; i++)
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{
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Delegate delegate2 = delegates_array[i];
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try
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{
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if (delegate2 != null) delegate2.DynamicInvoke(e);
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}
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catch (System.Exception ex)
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{
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string msg = ex.ToString();
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string stack_trace = ex.StackTrace;
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if (ex.InnerException != null)
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{
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msg = ex.InnerException.Message;
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stack_trace = ex.InnerException.StackTrace;
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}
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Debug.Log("[GameEventManager]Raise: {0}\nStack Trace: {1}\n因为出现了这个异常，该事件监听器将被移除" + msg + stack_trace);
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var evt_type = e.GetType();
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var item_evt_handler = delegate2 as EventHandler;
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if (item_evt_handler != null) eventHandler -= item_evt_handler;
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if (eventHandler == null)
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{
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delegates.Remove(evt_type);
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}
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else
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delegates[evt_type] = eventHandler;
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var etor = delegatesLookup.GetEnumerator();
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while (etor.MoveNext())
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{
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if (etor.Current.Value == item_evt_handler)
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{
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delegatesLookup.Remove(etor.Current.Key);
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break;
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}
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}
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}
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}
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}
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}
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public void RemoveListener<T>(EventHandler<T> del) where T : IGameEvent
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{
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if (!delegatesLookup.TryGetValue(del, out var value))
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{
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return;
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}
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if (delegates.TryGetValue(typeof(T), out var value2))
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{
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value2 = (EventHandler)Delegate.Remove(value2, value);
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if (value2 == null)
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{
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delegates.Remove(typeof(T));
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}
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else
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{
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delegates[typeof(T)] = value2;
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}
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}
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delegatesLookup.Remove(del);
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}
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}
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} |