游戏框架通用模块之一消息机制
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使用方式：
注册消息: 在需要的位置注册一个带string参数的接收消息函数
CoreRoot.eventMgr.AddListener<string>("gmCommand", OnGmCommand);
发送消息：
CoreRoot.eventMgr.TriggerEvent<string>("gmCommand", inputField.text);
消息机制核心代码：
//支持的功能包括，事件的优先级排序，是否在切换场景时移除,每个委托可能绑定多个事件
public class EventMgr : MonoBehaviour
//定义优先级
public enum EventPriority
Highest = 10,
High = 100,
AboveMedium = 150,
Medium = 200, // 默认优先级
BelowMedium = 250,
Low = 300,
Lowest = 400,
//支持从0到3个参数的委托,
public delegate void EventFunction(string ge);
public delegate void EventFunction<U>(string ge, U arg1);
public delegate void EventFunction<U, V>(string ge, U arg1, V arg2);
public delegate void EventFunction<U, V, W>(string ge, U arg1, V arg2, W arg3);
//定义事件类
public class EventNode
public EventNode(Delegate function, bool removeOnLoadScene, EventPriority priority)
this.function = function;
this.removeOnLoadScene = removeOnLoadScene;
this.priority = priority;
public Delegate function;
public bool removeOnLoadScene;
public EventPriority priority;
//按优先级排序
public class EventNodeCompare : IComparer<EventNode>
public int Compare(EventNode x, EventNode y)
if (x == null)
if (y == null)
return 0;
else
return -1;
else
if (y == null)
return 1;
else
return ((int)x.priority) - ((int)y.priority);
public class MapNode
public bool dirty = false;
public List<EventNode> nodeList = new List<EventNode>();
void Awake ()
eventMap = new Dictionary<string, MapNode>();
// removeOnLoadScene决定此监听注册是否在加载场景时自动移除，大部分监听都应该选择自动移除，这是防止内存泄漏的保障机制
public void AddListener(string ge, EventFunction ef, bool removeOnLoadScene = true, EventPriority priority = EventPriority.Medium)
AddListenerInternal(ge, ef, removeOnLoadScene, priority);
public void AddListener<U>(string gameEvent, EventFunction<U> ef, bool removeOnLoadScene = true, EventPriority priority = EventPriority.Medium)
AddListenerInternal(gameEvent, ef, removeOnLoadScene, priority);
public void AddListener<U, V>(string gameEvent, EventFunction<U, V> ef, bool removeOnLoadScene = true, EventPriority priority = EventPriority.Medium)
AddListenerInternal(gameEvent, ef, removeOnLoadScene, priority);
public void AddListener<U, V, W>(string gameEvent, EventFunction<U, V, W> ef, bool removeOnLoadScene = true, EventPriority priority = EventPriority.Medium)
AddListenerInternal(gameEvent, ef, removeOnLoadScene, priority);
private void AddListenerInternal(string ge, Delegate ef, bool removeOnLoadScene, EventPriority priority)
// 如果event为空，那么返回
if (ge == null || ge.Length == 0)
Debug.LogWarning("EventMgr" + "EventName Error");
return;
// 如果第一次注册此类事件，需要创建对应链表
MapNode mapNode;
if( !eventMap.TryGetValue(ge, out mapNode) )
mapNode = new MapNode();
eventMap[ge] = mapNode;
// 如果重复注册则返回
//foreach( EventNode node in nodeList )
bool shouldSort = false;
for (int i=0; i<mapNode.nodeList.Count; ++i)
var node = mapNode.nodeList[i];
if( node.priority != EventPriority.Medium )
shouldSort = true;
if( node.function.Equals(ef) )
return;
if( priority != EventPriority.Medium )
shouldSort = true;
mapNode.nodeList.Add( new EventNode(ef, removeOnLoadScene, priority) );
if( mapNode.nodeList.Count > 1 && shouldSort )
mapNode.dirty = true;
public void RemoveListener(string ge, EventFunction ef)
RemoveListenerInternal(ge, ef);
public void RemoveListener<U>(string ge, EventFunction<U> ef)
RemoveListenerInternal(ge, ef);
public void RemoveListener<U, V>(string ge, EventFunction<U, V> ef)
RemoveListenerInternal(ge, ef);
public void RemoveListener<U, V, W>(string ge, EventFunction<U, V, W> ef)
RemoveListenerInternal(ge, ef);
public void RemoveListenerInternal(string ge, Delegate ef)
MapNode mapNode;
if( !eventMap.TryGetValue(ge, out mapNode) )
return;
int nCount = 0;
foreach( EventNode node in mapNode.nodeList )
if( node.function.Equals(ef) )
mapNode.nodeList.RemoveAt(nCount);
return;
nCount++;
EventNode[] PrepareNodeList(string ge)
if (ge == null || ge.Length == 0)
//CoreEntry.logMgr.Log(LogLevel.WARNING, "EventMgr", "trigger null event");
return null;
MapNode mapNode;
if( !eventMap.TryGetValue(ge, out mapNode) )
return null;
if( mapNode.dirty )
mapNode.nodeList.Sort(eventNodeCompare);
mapNode.dirty = false;
// 将事件响应队列复制一个副本
EventNode[] tpList = new EventNode[ mapNode.nodeList.Count ];
mapNode.nodeList.CopyTo(tpList);
return tpList;
public void TriggerEvent(string ge)
EventNode[] tpList = PrepareNodeList(ge);
if( tpList == null )
return;
foreach( EventNode node in tpList )
EventFunction ef = node.function as EventFunction;
if( ef != null )
ef(ge);
else
Debug.LogError(string.Format("处理事件 \\"0\\" 时回调函数参数不匹配", ge) );
public void TriggerEvent<U>(string ge, U arg1)
EventNode[] tpList = PrepareNodeList(ge);
if( tpList == null )
return;
foreach( EventNode node in tpList )
EventFunction<U> ef = node.function as EventFunction<U>;
if( ef != null )
ef(ge, arg1);
else
Debug.LogError(string.Format("处理事件 \\"0\\" 时回调函数参数不匹配", ge) );
public void TriggerEvent<U, V>(string ge, U arg1, V arg2)
EventNode[] tpList = PrepareNodeList(ge);
if( tpList == null )
return;
foreach( EventNode node in tpList )
EventFunction<U, V> ef = node.function as EventFunction<U, V>;
if( ef != null )
ef(ge, arg1, arg2);
else
Debug.LogError(string.Format("处理事件 \\"0\\" 时回调函数参数不匹配", ge) );
public void TriggerEvent<U, V, W>(string ge, U arg1, V arg2, W arg3)
EventNode[] tpList = PrepareNodeList(ge);
if( tpList == null )
return;
foreach( EventNode node in tpList )
EventFunction<U, V, W> ef = node.function as EventFunction<U, V, W>;
if( ef != null )
ef(ge, arg1, arg2, arg3);
else
Debug.LogError(string.Format("处理事件 \\"0\\" 时回调函数参数不匹配", ge) );
// 切换场景时移除removeOnLoadScene标志为true的监听对象
public void OnLoadSceneRecycle()
foreach( MapNode mapNode in eventMap.Values )
for( int i=0; i<mapNode.nodeList.Count; )
if( mapNode.nodeList[i].removeOnLoadScene )
mapNode.nodeList.RemoveAt(i);
else
++i;
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