3.游戏优化(CCSpriteBatchNode)

#define
__BACHNODE_H__

#include
"cocos2d.h"

USING_NS_CC;

class
BachNode :public
CCLayer

{

public:

static
CCScene *
scene();

CREATE_FUNC(BachNode);

bool
init();

virtual
bool
ccTouchBegan(CCTouch
*pTouch,
CCEvent *pEvent);

//创建BatchNode

CCSpriteBatchNode 
*batchNode;

};

#endif

#include
"AppMacros.h"

CCScene *BachNode::scene()

{

CCScene *
scene =
CCScene::create();

BachNode *
layer =
BachNode::create();

scene->addChild(layer);

return
scene;

}

bool
BachNode::init()

{

CCLayer::init();

setTouchEnabled(true);

setTouchMode(kCCTouchesOneByOne);

//初始化成员batchNode

//batchNode = CCSpriteBatchNode::create("CloseNormal.png");

//第一步：通过CCSpriteBatchNode的方式进行添加

//将小图中的东西先绘制成一张大图，然后将它们缓存到CCSpriteFrameCache中了

CCSpriteFrameCache::sharedSpriteFrameCache()->addSpriteFramesWithFile("batchnode/plant.plist");

//然后将大图渲染

batchNode =
CCSpriteBatchNode::create("batchnode/plant.png");

//第二部：将batchNode添加到CCLayer中

addChild(batchNode);

return
true;

}

bool
BachNode::ccTouchBegan(CCTouch
*pTouch,
CCEvent *pEvent)

{

static
bool
flag =
true;

CCSprite *spr;

for (int
i = 0;
i < 1000;
i++)

{

//1.下面的方式是加载一张图的情况

//CCSprite *spr = CCSprite::create("CloseNormal.png");

//通过CCRANDOM_0_1()获得一个0到1的节点

//spr->setPosition(ccp(CCRANDOM_0_1() * 480, CCRANDOM_0_1() * 320));

//batchNode->addChild(spr);

//2.通过下面的方式加载两类图

if (flag)

{

//因为已经加载到缓存中，所以直接可以通过createWithSpriteFrameName加载图片

spr =
CCSprite::createWithSpriteFrameName("p_2_01.png");

}

else

{

spr =
CCSprite::createWithSpriteFrameName("p_3_01.png");

}

spr->setPosition(ccp(CCRANDOM_0_1()
* 480, CCRANDOM_0_1() * 320));

//batchNode在头文件中定义的有

batchNode->addChild(spr);

flag = !flag;

}

return
false;

}