U3D架构系列之- FSM有限状态机设计三

由 Benz 于 星期一, 2015-02-02 11:37 发表

在设计二中，我们实现了有限状态机管理类，接下来，我们实现FSState这个类，这里类主要是状态的基本操作以及事件触发。在这里我们定义了在FiniteStateMachine类里声明的三个委托。在FSState里面使用的代码如下：

1 protected FiniteStateMachine.EnterState mEnterDelegate;

2 protected FiniteStateMachine.PushState mPushDelegate;

3 protected FiniteStateMachine.PopState mPopDelegate;

这个FSState是独立的一个类，不继承Mono，我们定义了一个构造函数，将我们的委托进行了初始化：

1 public FSState(IState obj, FiniteStateMachine owner, string name, FiniteStateMachine.EnterState e, FiniteStateMachine.PushState pu, FiniteStateMachine.PopState po) {

2 mStateObject = obj;

3 mStateName = name;

4 mOwner = owner;

5 mEnterDelegate = e;

6 mPushDelegate = pu;

7 mPopDelegate = po;

8 mTranslationEvents = new Dictionary();

9

10 }

我们声明了FSEvent事件处理函数用于将事件的名字和事件加入的Dictionary里面

1public FSEvent On(string eventName) {

2 FSEvent newEvent = new FSEvent(eventName, null, this, mOwner, mEnterDelegate, mPushDelegate, mPopDelegate);

3 mTranslationEvents.Add(eventName, newEvent);

4 return newEvent;

5

6 }

加入到列表后，我们需要从表里面取出去执行，这就需要Trigger触发函数：



以上也是FSState类的核心代码，闲话少说，FSState类的整个代码，如下：

using System;

using System.Collections;

using System.Collections.Generic;

public class FSState {

protected FiniteStateMachine.EnterState mEnterDelegate;

protected FiniteStateMachine.PushState mPushDelegate;

protected FiniteStateMachine.PopState mPopDelegate;

protected IState mStateObject;

protected string mStateName;

protected FiniteStateMachine mOwner;

protected Dictionary mTranslationEvents;

public FSState(IState obj, FiniteStateMachine owner, string name, FiniteStateMachine.EnterState e, FiniteStateMachine.PushState pu, FiniteStateMachine.PopState po) {

mStateObject = obj;

mStateName = name;

mOwner = owner;

mEnterDelegate = e;

mPushDelegate = pu;

mPopDelegate = po;

mTranslationEvents = new Dictionary();

}

public IState StateObject {

get {

return mStateObject;

}

}

public string StateName {

get {

return mStateName;

}

}

public FSEvent On(string eventName) {

FSEvent newEvent = new FSEvent(eventName, null, this, mOwner, mEnterDelegate, mPushDelegate, mPopDelegate);

mTranslationEvents.Add(eventName, newEvent);

return newEvent;

}

public void Trigger(string name) {

mTranslationEvents[name].Execute(null, null, null);

}

public void Trigger(string eventName, object param1) {

mTranslationEvents[eventName].Execute(param1, null, null);

}

public void Trigger(string eventName, object param1, object param2) {

mTranslationEvents[eventName].Execute(param1, param2, null);

}

public void Trigger(string eventName, object param1, object param2, object param3) {

mTranslationEvents[eventName].Execute(param1, param2, param3);

}

public FSState On(string eventName, Func action) {

FSEvent newEvent = new FSEvent(eventName, null, this, mOwner, mEnterDelegate, mPushDelegate, mPopDelegate);

newEvent.mAction = delegate (object o1, object o2, object o3) {

T param1;

try { param1 = (T)o1; } catch { param1 = default(T); }

action(param1);

return true;

};

mTranslationEvents.Add(eventName, newEvent);

return this;

}

public FSState On(string eventName, Action action) {

FSEvent newEvent = new FSEvent(eventName, null, this, mOwner, mEnterDelegate, mPushDelegate, mPopDelegate);

newEvent.mAction = delegate (object o1, object o2, object o3) {

T param1;

try { param1 = (T)o1; } catch { param1 = default(T); }

action(param1);

return true;

};

mTranslationEvents.Add(eventName, newEvent);

return this;

}

public FSState On(string eventName, Func action) {

FSEvent newEvent = new FSEvent(eventName, null, this, mOwner, mEnterDelegate, mPushDelegate, mPopDelegate);

newEvent.mAction = delegate (object o1, object o2, object o3) {

T1 param1;

T2 param2;

try { param1 = (T1)o1; } catch { param1 = default(T1); }

try { param2 = (T2)o2; } catch { param2 = default(T2); }

action(param1, param2);

return true;

};

mTranslationEvents.Add(eventName, newEvent);

return this;

}

public FSState On(string eventName, Action action) {

FSEvent newEvent = new FSEvent(eventName, null, this, mOwner, mEnterDelegate, mPushDelegate, mPopDelegate);

newEvent.mAction = delegate (object o1, object o2, object o3) {

T1 param1;

T2 param2;

try { param1 = (T1)o1; } catch { param1 = default(T1); }

try { param2 = (T2)o2; } catch { param2 = default(T2); }

action(param1, param2);

return true;

};

mTranslationEvents.Add(eventName, newEvent);

return this;

}

public FSState On(string eventName, Func action) {

FSEvent newEvent = new FSEvent(eventName, null, this, mOwner, mEnterDelegate, mPushDelegate, mPopDelegate);

newEvent.mAction = delegate (object o1, object o2, object o3) {

T1 param1;

T2 param2;

T3 param3;

try { param1 = (T1)o1; } catch { param1 = default(T1); }

try { param2 = (T2)o2; } catch { param2 = default(T2); }

try { param3 = (T3)o3; } catch { param3 = default(T3); }

action(param1, param2, param3);

return true;

};

mTranslationEvents.Add(eventName, newEvent);

return this;

}

public FSState On(string eventName, Action action) {

FSEvent newEvent = new FSEvent(eventName, null, this, mOwner, mEnterDelegate, mPushDelegate, mPopDelegate);

newEvent.mAction = delegate (object o1, object o2, object o3) {

T1 param1;

T2 param2;

T3 param3;

try { param1 = (T1)o1; } catch { param1 = default(T1); }

try { param2 = (T2)o2; } catch { param2 = default(T2); }

try { param3 = (T3)o3; } catch { param3 = default(T3); }

action(param1, param2, param3);

return true;

};

mTranslationEvents.Add(eventName, newEvent);

return this;

}

}

接下来会在设计四中继续讲解 FSEvent类

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