cocos2d-x学习（10）----大鱼吃小鱼（二）

游戏界面1：

游戏界面2：

游戏界面3：

游戏成功界面：

游戏失败界面：

详细代码：

GameScene.h

class GameScene : public cocos2d::CCLayer
{
public:
	virtual bool init();

	static cocos2d::CCScene* scene();

	virtual void ccTouchesBegan(cocos2d::CCSet *pTouches, cocos2d::CCEvent *pEvent);
	virtual void ccTouchesMoved(cocos2d::CCSet *pTouches, cocos2d::CCEvent *pEvent);

	void backCallback( CCObject *pSender );

	//LAYER_NODE_FUNC(GameScene);
	// implement the "static node()" method manually
    CREATE_FUNC(GameScene);

private:

	//生成鱼
	void createFish(float dt);	
	//检测鱼
	void checkFish(float dt);

	//屏幕上的鱼最多的总数：6，不包括自己
	std::vector<MyCCSprite> fishes;

	//可以吃的鱼
	std::vector<cocos2d::CCSprite*> canEatEnemy;

	//玩家自己
	cocos2d::CCSprite* mainFish;

	//触摸点的位置
	cocos2d::CCPoint touchLocation;

	float fishSize;
};

class MyCCSprite
{
public:
	MyCCSprite(cocos2d::CCSprite* _sprite,int _fishLevel):sprite(_sprite),fishLevel(_fishLevel){}
	cocos2d::CCSprite* sprite;
	int fishLevel;
};

GameScene.cpp

cocos2d::CCScene* GameScene::scene()
{
	CCScene * scene = NULL;
	do 
	{
		// 'scene' is an autorelease object
		scene = CCScene::node();
		CC_BREAK_IF(! scene);

		// 'layer' is an autorelease object
		GameScene *layer = GameScene::create();
		CC_BREAK_IF(! layer);

		// add layer as a child to scene
		scene->addChild(layer);
	} while (0);

	// return the scene
	return scene;
}


bool GameScene::init()
{
	bool bRet = false;

	do 
	{
		CCSize winSize = CCDirector::sharedDirector()->getWinSize();

		if(g_isMusic)
		{
		CocosDenshion::SimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(0.05f);
		CocosDenshion::SimpleAudioEngine::sharedEngine()->playBackgroundMusic("bg.wav",true);
		}

		std::string titleStr = "You Can Eat:";
		CCLabelTTF* pLable = CCLabelTTF::labelWithString(titleStr.c_str(),"Thonburi",30);
		CC_BREAK_IF(!pLable);
		pLable->setColor(ccRED);
		pLable->setAnchorPoint(ccp(0,1));
		pLable->setPosition(ccp(0,winSize.height));
		this->addChild(pLable,1);


		//can eat enemy
		float enemyXPosition=0;

		for(int i=1;i<5;i++)
			for(int j=0;j<4;j++)
			{
				char filename[20];
				//enemy10.png  enemy11.png  enemy12.png enemy13.png
				//enemy20.png  enemy21.png  enemy22.png enemy23.png
				//enemy30.png  enemy31.png  enemy32.png enemy33.png
				//enemy40.png  

				sprintf_s(filename,"enemy%d%d.png",i,j);
				CCTexture2D *texture=CCTextureCache::sharedTextureCache()->addImage(filename);
				float frameWidth = texture->getContentSize().width/5;
				float frameheight = texture->getContentSize().height;			
				CCSprite* enemy=CCSprite::spriteWithTexture(texture,CCRectMake(0,0,frameWidth,frameheight));
				CC_BREAK_IF(!enemy);

				if(i!=1)
				//enemy->setIsVisible(false);
				enemy->setVisible(false);
				enemy->setPosition(ccp(enemyXPosition,winSize.height*0.85));
				enemyXPosition+=frameWidth/2+10;
				enemy->setAnchorPoint(ccp(0,0.5));
				enemy->setScale(0.5f);
				this->addChild(enemy,1);
				//在尾部加入一个数据
				canEatEnemy.push_back(enemy);

				if(i==4)
				{
					enemy->setPosition(ccp(winSize.width/2,winSize.height*0.8));
					break;
				}
			}

		//background
		CCSprite* pSprite = CCSprite::spriteWithFile("bg01.png");
		CC_BREAK_IF(!pSprite);
		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);


		//mainFish
		CCTexture2D *texture=CCTextureCache::sharedTextureCache()->addImage("mainfish.png");
		mainFish=CCSprite::spriteWithTexture(texture,CCRectMake(0,0,100,69));

		CCAnimation *animation = CCAnimation::animation();
		//animation->setDelay(0.2f);
		animation->setDelayPerUnit(0.2f);
		for(int i=0;i<3;i++)
			//animation->addFrameWithTexture(texture,CCRectMake((float)i*100,0,100,69));
			animation->addSpriteFrameWithTexture(texture,CCRectMake((float)i*100,0,100,69));

		CCAnimate* animate = CCAnimate::actionWithAnimation(animation);
		animate->setDuration(0.5f);
		mainFish->runAction(CCRepeatForever::actionWithAction(animate));

		fishSize=0.4f;
		mainFish->setScale(fishSize);
		mainFish->setPosition(ccp(winSize.width/2,winSize.height/2));
		this->addChild(mainFish,1);


		//menu
		std::string str;		
		str="Back";		
		CCMenuItemFont* backMenu = CCMenuItemFont::create(str.c_str(),this,menu_selector(GameScene::backCallback));

		CCMenu* mn = CCMenu::menuWithItems(backMenu,NULL);
		mn->setPosition(ccp(0,0));
		backMenu->setAnchorPoint(ccp(1,0));
		backMenu->setPosition(ccp(winSize.width,0));
		this->addChild(mn,1);


		this->schedule(schedule_selector(GameScene::createFish));
		this->schedule(schedule_selector(GameScene::checkFish));

		this->setTouchEnabled(true);

		bRet = true;

	} while (0);
	return(bRet);
}


void GameScene::createFish(float dt)
{
	//屏幕上的鱼最多的总数：6，不包括自己
	if(fishes.size()>5)
		return;

	CCSize winSize = CCDirector::sharedDirector()->getWinSize();

	//开始的位置
	int startHeight=rand()%8;
	//鱼的方向
	int direction=rand()%2;
	CCLog("direction:%i", direction);
	//速度
	int speed = rand()%3+1;
	//鱼的等级
	int fishLeveltemp=rand()%10;
	//CCLog("fishLeveltemp:%i", fishLeveltemp);

	//鱼的等级
	int fishLevel;
	if(fishLeveltemp<5)
		fishLevel=1;
	else if(fishLeveltemp<7)
		fishLevel=2;
	else if(fishLeveltemp<9)
		fishLevel=3;
	else fishLevel=4;
	//CCLog("fishLevel:%i", fishLevel);

	//鱼的数目（第几个）
	int fishNum=rand()%4;
	if (fishLevel==4)
		fishNum=0;

	char filename[20];
	sprintf_s(filename,"enemy%d%d.png",fishLevel,fishNum);
	CCTexture2D *texture=CCTextureCache::sharedTextureCache()->addImage(filename);

	float frameWidth = texture->getContentSize().width/5;
	float frameheight = texture->getContentSize().height;

	CCAnimation *animation = CCAnimation::animation();
	animation->setDelayPerUnit(0.2f);

	for(int i=0;i<3;i++)
		animation->addSpriteFrameWithTexture(texture,CCRectMake(i*frameWidth,0,frameWidth,frameheight));

	CCSprite* fish=CCSprite::spriteWithTexture(texture,CCRectMake(0,0,frameWidth,frameheight));


	//begin on left
	if(direction)
	{
		fish->setAnchorPoint(ccp(1,0));
		fish->setPosition(ccp(0,startHeight*winSize.height/10));
	}
	//begin on right
	else
	{
		fish->setAnchorPoint(ccp(0,0));
		fish->setPosition(ccp(winSize.width,winSize.height/10));
		fish->setFlipX(true);
	}
	this->addChild(fish,1);

	//不断的生成鱼（最多6条）
	fishes.push_back(MyCCSprite(fish,fishLevel));

	CCAnimate* animate = CCAnimate::actionWithAnimation(animation);
	animate->setDuration(0.5f);
	fish->runAction(CCRepeatForever::actionWithAction(animate));

	CCActionInterval *action=CCMoveBy::actionWithDuration(0.1f,ccp(speed*(direction?1:(-1)),0));
	fish->runAction(CCRepeatForever::actionWithAction(action));
}



void GameScene::checkFish(float dt)
{
	if (!mainFish->isVisible())
	{
		return;
	}

	CCSize winSize=CCDirector::sharedDirector()->getWinSize();
	CCRect screen=CCRectMake(0,0,winSize.width,winSize.height);

	CCRect mainFishBox=mainFish->boundingBox();

	for (std::vector<MyCCSprite>::iterator it=fishes.begin(); it != fishes.end();)
	{
		CCSprite *fish =(*it).sprite;
		CCPoint position=fish->getPosition();
		CCRect fishBox=fish->boundingBox();

		//如果自己和其它的鱼碰到
		if (CCRect::CCRectIntersectsRect(mainFishBox,fishBox))
		{
			if((fishSize*5)>(*it).fishLevel+1)
			{
				float temp = fishSize*5-(*it).fishLevel;
				if(temp<3)
				{
					if(fishSize<1.2)
					fishSize+=0.05f/((int)temp+1);
					if((fishSize*5)>3&&!canEatEnemy[4]->isVisible())
						for(int i=4;i<=7;i++)						
						canEatEnemy[i]->setVisible(true);					
					if((fishSize*5)>4&&!canEatEnemy[8]->isVisible())
						for(int i=8;i<=11;i++)
							canEatEnemy[i]->setVisible(true);
					if(fishSize*5>5)
						canEatEnemy[12]->setVisible(true);
					//游戏成功
					if((*it).fishLevel==4)
					{
						this->stopAllActions();
						this->setTouchEnabled(false);
						CCSprite* pSpriteWin = CCSprite::spriteWithFile("you_win.png");
						pSpriteWin->setPosition(ccp(winSize.width/2,winSize.height/2));
						this->addChild(pSpriteWin,2);
					}
				}

				//吃掉小鱼
				if(g_isSound)
				CocosDenshion::SimpleAudioEngine::sharedEngine()->playEffect("eat.wav");
				this->removeChild(fish, true);
				it=fishes.erase(it);
				

				mainFish->setScale(fishSize);
			}
			else
			{
				//玩家自己被鱼吃掉
				this->stopAllActions();				
				this->setTouchEnabled(false);
				CCSprite* pSpriteGameOver = CCSprite::spriteWithFile("game_over.png");
				pSpriteGameOver->setPosition(ccp(winSize.width/2,winSize.height/2));
				this->addChild(pSpriteGameOver,2);

				if(g_isSound)
					CocosDenshion::SimpleAudioEngine::sharedEngine()->playEffect("byeat.wav");				
				mainFish->setVisible(false);
				break;
			}
	
		}
		else if (!CCRect::CCRectContainsPoint(screen,position))
		{
			//如果小鱼出了屏幕，就remove
			this->removeChild(fish, true);
			it=fishes.erase(it);
		}

		else
		{
			it++;
		}
	}

}



void GameScene::ccTouchesBegan(cocos2d::CCSet *pTouches, cocos2d::CCEvent *pEvent)
{
	//CCTouch *touch = (CCTouch*)pTouches->anyObject();
	//CCPoint location = touch->locationInView(touch->view());
	//touchLocation = CCDirector::sharedDirector()->convertToGL(location);

    CCSetIterator it = pTouches->begin();
    CCTouch* touch = (CCTouch*)(*it);

    touchLocation = touch->getLocation();    


}

void GameScene::ccTouchesMoved( CCSet *pTouches, CCEvent *pEvent )
{
	//CCTouch *touch = (CCTouch*)pTouches->anyObject();
	//CCPoint location = touch->locationInView(touch->view());
	//CCPoint convertedLocation = CCDirector::sharedDirector()->convertToGL(location);

    CCSetIterator it = pTouches->begin();
    CCTouch* touch = (CCTouch*)(*it);
    CCPoint convertedLocation = touch->getLocation();    

	CCPoint fishLocation = mainFish->getPosition();

	fishLocation.x+=convertedLocation.x-touchLocation.x;
	fishLocation.y+=convertedLocation.y-touchLocation.y;
	
	CCSize winSize = CCDirector::sharedDirector()->getWinSize();
	CCRect rect=CCRectMake(0,0,winSize.width,winSize.height);

	if(CCRect::CCRectContainsPoint(rect,fishLocation))
	{
		if((convertedLocation.x-touchLocation.x)<0)
			mainFish->setFlipX(true);
		else
			mainFish->setFlipX(false);
		mainFish->setPosition(fishLocation);
		
	}
	touchLocation=convertedLocation;

}



void GameScene::backCallback( CCObject *pSender )
{
	if(g_isMusic)
	CocosDenshion::SimpleAudioEngine::sharedEngine()->pauseBackgroundMusic();
	CCScene * scene=HelloWorld::scene();
	CCDirector::sharedDirector()->replaceScene(CCTransitionFlipX::transitionWithDuration(1.2f,scene));
}

说明：

       上面的代码，是我在CSDN中，下载而来，但是现在忘了是哪位兄弟，在这里感谢这位无私奉献的兄弟，就是因为大家的共享和分享精神，知识才会积累和分享，技术才能更进步，大家才能学到更，谢谢csdner.

源码下载地址：

http://download.csdn.net/detail/hfreeman2008/5783445