cocos2d-x函数记录

//克隆精灵

CCSprit *clone(CCNode *sp)

{

CCSprite *csp=NULL;

CCSize size=sp->getContentSize();

float tempX=sp->getPositionX();

float tempY=sp->getPositionY();

sp->setPosition(ccp(size.width*0.5,size.height*0.5));

CCRenderTexture *txt=CCRenderTexture::create(size.width,size.height,kCCtexture2DPixelFormat_RGB8888);

txt->begin();

sp->visit();

txt->end();

sp->setPosition(ccp(tempX,tempY));

CCImage *img=txt->newCCImage();

CCTexture2D *txt1=new CCTexture2D();

txt1->initWithImage(img);

img->release();

txt1->m_name=“SpriteUtils::clone”;

csp=CCSprite::createWithTexture(txt1);

txt1->release();

return cap;

}

//响应底层事件
setSwallowTouches

//2个向量之间的夹角
ccpAngle(a,b)