本身實現C#消息通知組件（unity3d）

本篇文章主要講述Unity3D中客戶端消息機制的實現。

·消息通訊在遊戲各個模塊中應該很方便調用，並且須要下降模塊之間的耦合。

·代碼精煉

·易維護

如今直接上代碼

 1 using System;
 2 public class Notification
 3 {
 4     public Enum Type { set; get; }
 5 
 6     public Object[] Params { set; get; }
 7 
 8     public Object Target { set; get; }
 9 
10     public Notification()
11     {
12 
13     }  
14 }

 1 using System;
 2 [AttributeUsage(AttributeTargets.Method)]
 3 public class Subscribe : Attribute
 4 {
 5     protected Object m_Type { set; get; }
 6     public Subscribe(Object type)
 7     {
 8         m_Type = type;
 9     }
10     public Enum GetSubscription()
11     {
12         return (Enum)m_Type;
13     }       
14 }

  1 using System;
  2 using System.Collections;
  3 using System.Collections.Generic;
  4 using System.Reflection;
  5 
  6 public class Notifier
  7 {
  8     Dictionary<Enum, Action<Notification>> m_DictAction = new Dictionary<Enum, Action<Notification>>();
  9     Object m_Target = null;
 10     byte m_LifeState = 1;
 11     public Notifier() 
 12     {
 13         m_Target = this;
 14         Init();
 15     }
 16     public Notifier(Object target)
 17     {
 18         if (target == null)
 19             throw new Exception("Target is null,please use New Notifier() instead");
 20         m_Target = target;
 21         Init();
 22     }
 23 
 24     void Init()
 25     {
 26         MethodInfo[] methods = m_Target.GetType().GetMethods(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
 27         foreach (MethodInfo m in methods)
 28         {
 29             //.net 2.0
 30             //Subscribe[] subs = (Subscribe[])m.GetCustomAttributes(typeof(Subscribe), true);
 31             //if(subs != null && subs.Length>0)
 32             //    Add(subs[0].GetSubscription(),  Delegate.CreateDelegate(typeof(Action<Notification>), m_Target,m.Name) as Action<Notification>);         
 33             
 34             Subscribe sub = m.GetCustomAttribute<Subscribe>();
 35             if (sub != null)
 36                 Add(sub.GetSubscription(), m.CreateDelegate(typeof(Action<Notification>), m_Target) as Action<Notification>);               
 37         }
 38     }
 39 
 40     public void Awake() { m_LifeState = 1; }
 41     public void Sleep() { m_LifeState = 0; }
 42     void _Execute(Enum type,Notification note)
 43     {
 44         if (m_LifeState == 0) return;
 45         if (m_DictAction.ContainsKey(type))
 46         {          
 47             if (m_DictAction[type] != null)
 48                 m_DictAction[type](note);
 49         }
 50     }
 51 
 52     public void Add(Enum type,Action<Notification> receiver)
 53     {
 54         if (receiver == null)
 55             throw new Exception("Receiver is null");
 56         if (m_DictAction.ContainsKey(type))
 57             throw new Exception(string.Format("{0} has added",type.ToString()));
 58         m_DictAction[type] = receiver;
 59         _Add(type, this);
 60     }
 61 
 62     public void Remove(Enum type)
 63     {
 64         m_DictAction.Remove(type);
 65         _Remove(type, this);
 66     }
 67     public void RemoveAll()
 68     {
 69         ICollection keys = m_DictAction.Keys;
 70         Enum[] arrTemp = new Enum[keys.Count];
 71         keys.CopyTo(arrTemp, 0);
 72         foreach (Enum type in arrTemp)
 73             Remove(type);
 74     }
 75 
 76     public void Send(Enum type , params Object[] datas)
 77     {
 78         Notification note = new Notification();
 79         note.Type = type;
 80         note.Params = datas;
 81         note.Target = m_Target;
 82         _Send(type, note);
 83     }
 84 
 85     
 86     public void Destory()
 87     {
 88         RemoveAll();
 89         m_DictAction = null;
 90         m_Target = null;
 91     }
 92 
 93     #region static functions
 94     static readonly Dictionary<Enum, List<Notifier>> s_DictNotifiers = new Dictionary<Enum, List<Notifier>>();
 95     static void _Add(Enum type,Notifier notifier)
 96     {
 97         if (!s_DictNotifiers.ContainsKey(type))
 98             s_DictNotifiers[type] = new List<Notifier>();
 99         if (!s_DictNotifiers[type].Contains(notifier))
100             s_DictNotifiers[type].Add(notifier);
101     }
102 
103     static void _Remove(Enum type,Notifier notifier)
104     {
105         if (s_DictNotifiers.ContainsKey(type))
106         {
107             if (s_DictNotifiers[type].Contains(notifier))
108                 s_DictNotifiers[type].Remove(notifier);
109         }
110     }
111 
112     static void _Send(Enum type, Notification note)
113     {
114         if (s_DictNotifiers.ContainsKey(type))
115         {
116             List<Notifier> notifiers = s_DictNotifiers[type];
117             int count = notifiers.Count;
118             for (int i = count - 1; i > -1; --i)
119             {
120                 if (notifiers[i] != null)
121                     notifiers[i]._Execute(type,note);
122             }
123         }
124     }
125     #endregion
126 }

主程序：

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Text;
 5 using System.Threading.Tasks;
 6 
 7 namespace NotificationProj
 8 {
 9     class Program:Notifier
10     {
11         public enum NotifierSendType1
12         {
13             E,
14         }
15         static void Main(string[] args)
16         {
17             new Program().init();
18         }
19 
20         Notifier n1;
21 
22         private void init()
23         {
24             n1 = new Notifier();
25             n1.Send(NotifierSendType1.E);
26             Console.ReadKey();
27             
28         }
29         [Subscribe(NotifierSendType1.E)]
30         void OnReceive1E(Notification note)
31         {
32             Console.WriteLine("RRR");//RRR
33         }
34     }
35 }