实验6 观察者模式.doc

文档介绍：实验6观察者模式【实验目的】掌握观察者模式的定义、结构及实现方式。【实验内容】在某多人联机对战游戏中,多个玩家可以加入同一战队组成联盟,当战队中的某一成员受到敌人攻击时将给所有其他盟友发送通知,盟友收到通知后将做出响应。现使用观察者模式设计并实现该过程,以实现战队成员之间的联动。REF观察者模式包含以下4个角色:Subject(目标)ConcreteSubject(具体目标)Observer(观察者)ConcreteObserver(具体观察者)AllyControlCenter{abstract}肿屛关方案"ObserverSample"(1个项目厶国ObserversampleallyName:stringplayers:List<IObserver>+++++SetAllyName(stringallyName):voidGetAllyName()Join(lObserverobs)Quit(lObserverobs)NotifyObserver(stringname):string:void:void:voidConcreteAllyControlCenter+ConcreteAllyControlCenter(stringallyName)4NotifyObserver(stringname):voidforeach(objectobsinplayers){if(!((IObserver)obs).(name)){((IObserver)obs).Help();)}实验步骤::°- lObserver+Name:string+Help() :void+BeAttacked():voidPlayer-«Propertylmplementation»name:string+«Property» Name:string+ Player(stringname)+«Setter» set_Name (string value) : void+«Getter» get_Name () : string+ Help() : void*、 BeAttacked():.NotifyObserver(name);t>NProperties>•实现项目的主要代码AllControlCenter内部代码EnamespaceObserverSample丨{EabstractclassAllyControlCenter{protectedstringallyName;protectedList<IObserver>players=newList<IObserver>():S publicvoidSetAllyName(stringallyName){=allyName:}■E publicstringGetAllyName(){:}■Ej publicvoidJoin(IObserverobs){*{0}加入{1}战队",,