用lua如何实现背景图片平铺

Cocos2d-x
#1

我在参考这段代码：

CCSize s = CCDirector::sharedDirector()->getWinSize();
    CCSprite* sprite = CCSprite::create("sprite.png"); // the image size is 256 * 224, so the height is non power of 2.
    CCRect spriteRect = sprite->getTextureRect();
    spriteRect.size.width = s.width;
    pSkyBg->setTextureRect(skyRect);

    ccTexParams tp = { GL_LINEAR, GL_LINEAR, GL_REPEAT, GL_REPEAT};
    sprite->getTexture()->setTexParameters(&tp);

    sprite->setPosition((ccp(0, s.height)));
    sprite->setAnchorPoint(ccp(0, 1));
    addChild(sprite, 0);


```


但是没有查到在lua中如何创建ccTexParams，求指点
#2

参考这里的试试：
cocos2d-x binding lua 实现背景图片平铺
http://segmentfault.com/a/1190000000726516