本章主要介紹testBasic.h/cpp，這兩個(gè)文件主要用于返回主場(chǎng)景界面。

//testBasic.h #ifndef _TEST_BASIC_H_ #define _TEST_BASIC_H_#include "cocos2d.h" #include "VisibleRect.h"USING_NS_CC; using namespace std;class TestScene : public CCScene //繼承自CCScene { public: TestScene(bool bPortrait = false); //構(gòu)造函數(shù)virtual void onEnter(); //重寫(xiě)onEnter函數(shù)virtual void runThisTest() = 0; //重寫(xiě)runThisTest函數(shù)// The CallBack for back to the main menu scenevirtual void MainMenuCallback(CCObject* pSender); //返回主菜單函數(shù) };typedef CCLayer* (*NEWTESTFUNC)(); //NEWTESTFUNC表示一個(gè)返回類(lèi)型為CCLayer*。沒(méi)有參數(shù)的函數(shù)指針 #define TESTLAYER_CREATE_FUNC(className) \ //TESTLAYER_CREATE_FUNC表示一個(gè)創(chuàng)建CCLayer的宏函數(shù) static CCLayer* create##className() \ //用兩個(gè)##來(lái)在宏中替換className為宏定義的參數(shù) { return new className(); }#define CF(className) create##className //CF表示 createXXX；比方CF（Scene）表示：createScene#endif下面是testBasic.cpp文件介紹

//testBasic.cpp #include "testBasic.h" #include "controller.h"TestScene::TestScene(bool bPortrait) //構(gòu)造函數(shù) {CCScene::init(); //調(diào)用基類(lèi)的初始化函數(shù) }void TestScene::onEnter() {CCScene::onEnter(); //調(diào)用基類(lèi)的onEnter函數(shù)//add the menu item for back to main menu //#if (CC_TARGET_PLATFORM == CC_PLATFORM_MARMALADE) // CCLabelBMFont* label = CCLabelBMFont::create("MainMenu", "fonts/arial16.fnt"); //#elseCCLabelTTF* label = CCLabelTTF::create("MainMenu", "Arial", 20); //#endif //將label與返回函數(shù)MainMenuCallback相關(guān)聯(lián)CCMenuItemLabel* pMenuItem = CCMenuItemLabel::create(label, this, menu_selector(TestScene::MainMenuCallback));CCMenu* pMenu =CCMenu::create(pMenuItem, NULL); ///用pMenuItem初始化CCMenu對(duì)象pMenu->setPosition( CCPointZero ); //設(shè)置pMenu位置pMenuItem->setPosition( ccp( VisibleRect::right().x - 50, VisibleRect::bottom().y + 25) ); //設(shè)置返回按鍵位置addChild(pMenu, 1); }void TestScene::MainMenuCallback(CCObject* pSender) //返回主菜單函數(shù) {CCScene* pScene = CCScene::create(); //創(chuàng)建新場(chǎng)景CCLayer* pLayer = new TestController(); //創(chuàng)建TestController層pLayer->autorelease();pScene->addChild(pLayer); //將新層增加到新場(chǎng)景CCDirector::sharedDirector()->replaceScene(pScene); //切換場(chǎng)景 }

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