cocos2d-x学习（9）----大鱼吃小鱼（一）
这个一个大鱼吃小鱼的游戏Demo,我们来按照游戏来解说代码。
一进游戏，我们可以看到游戏的menu界面：
详细代码：
HelloWorldScene.h
class HelloWorld : public cocos2d::CCLayer
{
public:
// Here's a difference. Method 'init' in cocos2d-x returns bool, instead of returning 'id' in cocos2d-iphone
virtual bool init();
// there's no 'id' in cpp, so we recommand to return the exactly class pointer
static cocos2d::CCScene* scene();
//a selector callback
//NewGame 回调函数
virtual void menuNewGameCallback(CCObject* pSender);
// a selector callback
//Option 回调函数
virtual void menuOptionCallback(CCObject* pSender);
//About 回调函数
virtual void menuAboutCallback(CCObject* pSender);
// a selector callback
//Quit 回调函数
void menuCloseCallback(CCObject* pSender);
// implement the "static node()" method manually
CREATE_FUNC(HelloWorld);
};
HelloWorldScene.cpp
CCScene* HelloWorld::scene()
{
CCScene * scene = NULL;
do
{
// 'scene' is an autorelease object
scene = CCScene::create();
CC_BREAK_IF(! scene);
// 'layer' is an autorelease object
HelloWorld *layer = HelloWorld::create();
CC_BREAK_IF(! layer);
// add layer as a child to scene
scene->addChild(layer);
} while (0);
// return the scene
return scene;
}
// on "init" you need to initialize your instance
bool HelloWorld::init()
{
bool bRet = false;
do
{
//////////////////////////////////////////////////////////////////////////
// super init first
//////////////////////////////////////////////////////////////////////////
CC_BREAK_IF(! CCLayer::init());
//////////////////////////////////////////////////////////////////////////
// add your codes below...
//////////////////////////////////////////////////////////////////////////
std::string titleStr = "Angry Fish";
//CCLabelTTF* pLable = CCLabelTTF::labelWithString(titleStr.c_str(),"Thonburi",30);
CCLabelTTF* pLable = CCLabelTTF::create(titleStr.c_str(),"Thonburi",30);
CC_BREAK_IF(!pLable);
pLable->setColor(ccRED);
CCSize winSize = CCDirector::sharedDirector()->getWinSize();
pLable->setPosition(ccp(winSize.width/2,winSize.height*0.8f));
this->addChild(pLable,1);
//CCSprite* pSprite = CCSprite::spriteWithFile("bg01.jpg");
CCSprite* pSprite = CCSprite::spriteWithFile("bg01.png");
CC_BREAK_IF(!pSprite);
//pSprite->setScaleX(winSize.width/pSprite->getContentSizeInPixels().width);
pSprite->setScaleX(winSize.width/pSprite->getContentSize().width);
//pSprite->setScaleY(winSize.height/pSprite->getContentSizeInPixels().height);
pSprite->setScaleY(winSize.height/pSprite->getContentSize().height);
pSprite->setPosition(ccp(winSize.width/2,winSize.height/2));
this->addChild(pSprite,0);
//游戏目录
CCMenuItemFont::setFontName("Thonburi");
CCMenuItemFont::setFontSize(25);
std::string menuItemStr="NewGame";
//CCMenuItemFont* newGame = CCMenuItemFont::itemFromString(menuItemStr.c_str(),this,menu_selector(HelloWorld::menuNewGameCallback));
CCMenuItemFont* newGame = CCMenuItemFont::create(menuItemStr.c_str(),this,menu_selector(HelloWorld::menuNewGameCallback));
menuItemStr = "Option";
//CCMenuItemFont* option = CCMenuItemFont::itemFromString(menuItemStr.c_str(),this,menu_selector(HelloWorld::menuOptionCallback));
CCMenuItemFont* option = CCMenuItemFont::create(menuItemStr.c_str(),this,menu_selector(HelloWorld::menuOptionCallback));
menuItemStr = "About";
//CCMenuItemFont* about = CCMenuItemFont::itemFromString(menuItemStr.c_str(),this,menu_selector(HelloWorld::menuAboutCallback));
CCMenuItemFont* about = CCMenuItemFont::create(menuItemStr.c_str(),this,menu_selector(HelloWorld::menuAboutCallback));
menuItemStr = "Quit";
//CCMenuItemFont* quit = CCMenuItemFont::itemFromString(menuItemStr.c_str(),this,menu_selector(HelloWorld::menuCloseCallback));
CCMenuItemFont* quit = CCMenuItemFont::create(menuItemStr.c_str(),this,menu_selector(HelloWorld::menuCloseCallback));
CCMenu* menu = CCMenu::menuWithItems(newGame,option,about,quit,NULL);
menu->setPosition(ccp(winSize.width/2,winSize.height/2));
menu->alignItemsVertically();
addChild(menu,1);
bRet = true;
} while (0);
return bRet;
}
void HelloWorld::menuCloseCallback(CCObject* pSender)
{
// "close" menu item clicked
CCDirector::sharedDirector()->end();
}
void HelloWorld::menuOptionCallback(CCObject* pSender)
{
CCScene* scene = SettingScene::scene();
CCDirector::sharedDirector()->replaceScene(CCTransitionFlipX::transitionWithDuration(1.2f,scene));
}
void HelloWorld::menuNewGameCallback(CCObject* pSender)
{
CCScene* scene = GameScene::scene();
CCDirector::sharedDirector()->replaceScene(CCTransitionFlipX::transitionWithDuration(1.2f,scene));
}
void HelloWorld::menuAboutCallback(CCObject* pSender)
{
//CCScene* scene = AboutScene::scene();
CCScene* scene = AboutScene::scene();
CCDirector::sharedDirector()->replaceScene(CCTransitionFlipX::transitionWithDuration(1.2f,scene));
}
关于界面：
详细代码：
AboutScene.h
class AboutScene : public cocos2d::CCLayer
{
public:
virtual bool init();
static cocos2d::CCScene* scene();
void backCallback(cocos2d::CCObject* pSender);
// implement the "static node()" method manually
CREATE_FUNC(AboutScene);
};
AboutScene.cpp
cocos2d::CCScene* AboutScene::scene()
{
CCScene * scene = NULL;
do
{
// 'scene' is an autorelease object
scene = CCScene::create();
CC_BREAK_IF(! scene);
// 'layer' is an autorelease object
AboutScene* layer = AboutScene::create();
CC_BREAK_IF(! layer);
// add layer as a child to scene
scene->addChild(layer);
} while (0);
// return the scene
return scene;
}
bool AboutScene::init()
{
bool bRet = false;
do
{
//init background
CCSize winSize = CCDirector::sharedDirector()->getWinSize();
CCSprite* pSprite = CCSprite::spriteWithFile("bg01.png");
pSprite->setScaleX(winSize.width/pSprite->getContentSize().width);
pSprite->setScaleY(winSize.height/pSprite->getContentSize().height);
pSprite->setPosition(ccp(winSize.width/2,winSize.height/2));
this->addChild(pSprite,0);
std::string titleStr = "Angry Fish\n\n Write by Cocos2d-x\n\n Author:freeman";
CCLabelTTF* pLable = CCLabelTTF::labelWithString(titleStr.c_str(),"Thonburi",30);
CC_BREAK_IF(!pLable);
pLable->setColor(ccBLUE);
//pLable->setAnchorPoint(ccp(0,1));
pLable->setPosition(ccp(winSize.width/2,winSize.height/2));
this->addChild(pLable,1);
std::string str;
str="Back";
//CCMenuItemFont* backMenu = CCMenuItemFont::itemFromString(str.c_str(),this,menu_selector(AboutScene::backCallback));
CCMenuItemFont* backMenu = CCMenuItemFont::create(str.c_str(),this,menu_selector(AboutScene::backCallback));
backMenu->setAnchorPoint(ccp(1,0));
backMenu->setPosition(ccp(winSize.width,0));
CCMenu* mn = CCMenu::menuWithItems(backMenu,NULL);
mn->setPosition(ccp(0,0));
this->addChild(mn,1);
bRet = true;
} while (0);
return(bRet);
}
void AboutScene::backCallback(cocos2d::CCObject* pSender)
{
CCScene * scene=HelloWorld::scene();
CCDirector::sharedDirector()->replaceScene(CCTransitionFlipX::transitionWithDuration(1.2f,scene));
}
选项界面：
详细代码：
global.h
extern bool g_isMusic; extern bool g_isSound;
global.cpp
bool g_isSound = true; bool g_isMusic = true;
SettingScene.h
class SettingScene :public cocos2d::CCLayer
{
public:
virtual bool init();
static cocos2d::CCScene* scene();
void backCallback(cocos2d::CCObject* pSender);
void soundCallback( cocos2d::CCObject *pSender );
void musicCallback( cocos2d::CCObject *pSender );
//LAYER_NODE_FUNC(SettingScene);
CREATE_FUNC(SettingScene);
};
SettingScene.cpp
cocos2d::CCScene* SettingScene::scene()
{
CCScene * scene = NULL;
do
{
// 'scene' is an autorelease object
scene = CCScene::create();
CC_BREAK_IF(! scene);
// 'layer' is an autorelease object
SettingScene *layer = SettingScene::create();
CC_BREAK_IF(! layer);
// add layer as a child to scene
scene->addChild(layer);
} while (0);
// return the scene
return scene;
}
bool SettingScene::init()
{
bool bRet = false;
do
{
CCSize winSize = CCDirector::sharedDirector()->getWinSize();
CCSprite* pSprite = CCSprite::spriteWithFile("bg01.png");
pSprite->setScaleX(winSize.width/pSprite->getContentSize().width);
pSprite->setScaleY(winSize.height/pSprite->getContentSize().height);
pSprite->setPosition(ccp(winSize.width/2,winSize.height/2));
this->addChild(pSprite,0);
CCMenuItemFont::setFontName("Thonburi");
CCMenuItemFont::setFontSize(30);
std::string str;
str = "Music";
//CCMenuItemFont *music = CCMenuItemFont::itemFromString(str.c_str(),NULL,NULL);
CCMenuItemFont *music = CCMenuItemFont::create(str.c_str(),NULL,NULL);
//music->setIsEnabled(false);
music->setEnabled(false);
str = "Open";
//CCMenuItemFont *openMusic = CCMenuItemFont::itemFromString(str.c_str());
CCMenuItemFont *openMusic = CCMenuItemFont::create(str.c_str());
str = "Close";
//CCMenuItemFont *closeMusic = CCMenuItemFont::itemFromString(str.c_str());
CCMenuItemFont *closeMusic = CCMenuItemFont::create(str.c_str());
CCMenuItemToggle *musicItem = CCMenuItemToggle::itemWithTarget(this,menu_selector(SettingScene::musicCallback),openMusic,closeMusic,NULL);
musicItem->setSelectedIndex(g_isMusic?0:1);
str = "Sound";
//CCMenuItemFont *sound = CCMenuItemFont::itemFromString(str.c_str(),NULL,NULL);
CCMenuItemFont *sound = CCMenuItemFont::create(str.c_str(),NULL,NULL);
//sound->setIsEnabled(false);
sound->setEnabled(false);
str = "Open";
//CCMenuItemFont *openSound = CCMenuItemFont::itemFromString(str.c_str());
CCMenuItemFont *openSound = CCMenuItemFont::create(str.c_str());
str = "Close";
//CCMenuItemFont *closeSound = CCMenuItemFont::itemFromString(str.c_str());
CCMenuItemFont *closeSound = CCMenuItemFont::create(str.c_str());
CCMenuItemToggle *soundItem = CCMenuItemToggle::itemWithTarget(this,menu_selector(SettingScene::soundCallback),openSound,closeSound,NULL);
soundItem->setSelectedIndex(g_isSound?0:1);
str="Back";
//CCMenuItemFont* back = CCMenuItemFont::itemFromString(str.c_str(),this,menu_selector(SettingScene::backCallback));
CCMenuItemFont* back = CCMenuItemFont::create(str.c_str(),this,menu_selector(SettingScene::backCallback));
CCMenu* menu = CCMenu::menuWithItems(music,musicItem,sound,soundItem,back,NULL);
this->addChild(menu);
menu->alignItemsInColumns(2,2,1);
bRet = true;
} while (0);
return(bRet);
}
void SettingScene::backCallback(cocos2d::CCObject* pSender)
{
CCScene* scene = HelloWorld::scene();
CCDirector::sharedDirector()->replaceScene(CCTransitionFlipX::transitionWithDuration(1.2f,scene));
}
void SettingScene::soundCallback( cocos2d::CCObject *pSender )
{
g_isSound=!g_isSound;
}
void SettingScene::musicCallback( cocos2d::CCObject *pSender )
{
g_isMusic=!g_isMusic;
}