哇！板球 源代码分析一

游戏主菜单页面

BeginLayer类封装该页面。init函数初始化该页面布景

该页面背景

    isDialog = false;
    setKeypadEnabled(true);    //开启按键事件
    CCSize visibleSize = CCDirector::sharedDirector()->getVisibleSize();
    CCPoint origin = CCDirector::sharedDirector()->getVisibleOrigin();    //获取可见区域原点坐标
	CCSprite* bSprite = CCSprite::create("pic/background.png");//背景图片
	bSprite->setPosition(ccp(origin.x, origin.y));
	bSprite->setAnchorPoint(ccp(0, 0));//默认锚点为0.5，0.5
	this->addChild(bSprite, 0);

创建菜单项按键
主菜单键及回调

   	 CCMenuItemImage *continueItem = CCMenuItemImage::create
	 (
		  "menuContinue.png",     //平时的图片
		  "menuContinue2.png",   //选中时的图片
		  this,
		  menu_selector(BeginLayer::continueSence)//点击时运行的回调方法
	 );

继续键及回调

	 CCMenuItemImage *continueItem = CCMenuItemImage::create
	 (
		  "menuContinue.png",     //平时的图片
		  "menuContinue2.png",   //选中时的图片
		  this,
		  menu_selector(BeginLayer::continueSence)//点击时运行的回调方法
	 );

成就键及回调

	 CCMenuItemImage *achievementsItem = CCMenuItemImage::create
	 (
		  "menuAchievements.png",     //平时的图片
		  "menuAchievements2.png",   //选中时的图片
		  this,
		  menu_selector(BeginLayer::achievementsSence)//点击时运行的回调方法
	 );

关于键及回调

	 CCMenuItemImage *aboutItem = CCMenuItemImage::create
	 (
		  "menuAbout.png",     //平时的图片
		  "menuAbout2.png",   //选中时的图片
		  this,
		  menu_selector(BeginLayer::aboutSence)//点击时运行的回调方法
	 );

设置键及回调

	 CCMenuItemImage *settItem = CCMenuItemImage::create
	 (
		  "set.png",     //平时的图片
		  "set2.png",   //选中时的图片
		  this,
		  menu_selector(BeginLayer::setSence)//点击时运行的回调方法
	 );

创建标题

	CCSprite* tSprite = CCSprite::create("pic/title.png");
	//设置精灵对象的位置
	tSprite->setPosition(ccp(origin.x, origin.y+visibleSize.height-207));
	tSprite->setAnchorPoint(ccp(0, 0));
	this->addChild(tSprite, 3);

组合成菜单对象

		pMenu = CCMenu::create(continueItem,newMenuItem,achievementsItem,aboutItem,settItem,NULL);
		pMenu->setPosition(CCPointZero);
		this->addChild(pMenu, GAME_LEVEL_WYF);

为菜单项出场加入动画

		CCNode* child = NULL;
		CCArray * pArray = pMenu->getChildren();//获取全部菜单项
		int count = pArray->count();//个数
		for(int m=0;m<count;m++)//遍历菜单项
		{
			child = (CCNode*)(pArray->objectAtIndex(m));//每一个菜单项
			child->setPosition(ccp(400,550));//初始位置
			CCActionInterval* moveTo1 = CCMoveTo::create(0.2f,ccp(400,-40));
			CCActionInterval* moveTo2 = CCMoveTo::create(0.25f*(count-m),ccp(400,80+80*(count-1-m)));
			CCActionInterval* move_ease_in2 = CCEaseElasticOut::create(moveTo2);//moveTo2振幅效果
			CCDelayTime *delay = CCDelayTime::create(0.2f*(count-m-1));//每一个菜单项出场间歇时间
			CCSequence* seq = CCSequence::create(delay,moveTo1,move_ease_in2, NULL);//
			child->runAction(seq);//运行
			
		}

主菜单键回调。通过调用toNewGameLayer来切换到NewGameLayer场景，真正的游戏主页面 

void BeginLayer::newSence(CCObject* pSender)
{
	tsm->toNewGameLayer(1);//第一关
}

继续键回调，先获取上次的数据。然后切换到对应关卡

void BeginLayer::continueSence(CCObject* pSender)
{
	//int gK=JNIUtil::getInt("continue",1,classPath.c_str());
	tsm->toNewGameLayer(1);
}

成就键回调，调用toAchieveLayer切换到AchieveLayer场景。来统计游戏数据中玩家最高分、最高关卡

void BeginLayer::achievementsSence(CCObject* pSender)
{
	tsm->toAchieveLayer();
}

关于键回调。调用toHelpLayer切换到HelpLayer场景，提示游戏帮助手冊

void BeginLayer::aboutSence(CCObject* pSender)
{
	tsm->toHelpLayer();
}

设置键回调，调用toSetLayer切换到SetLayer场景，设置游戏音乐及音效

void BeginLayer::setSence(CCObject* pSender)
{
	tsm->toSetLayer();
}

返回键处理，调用toOutLayer切换到推出游戏场景

void BeginLayer::keyBackClicked()
{
	if(isDialog)
	{
		return;
	}
	isDialog = true;
	//暂停声音播放
	CocosDenshion::SimpleAudioEngine::sharedEngine()->pauseBackgroundMusic();
	tsm->toOutLayer();
}