cocos2dx 图片平铺

Texture2D *texture = Director::getInstance() -> getTextureCache() -> addImage("Santa.png");
Texture2D::TexParams tp = {GL_LINEAR,GL_LINEAR,GL_REPEAT,GL_REPEAT};
texture -> setTexParameters(tp);
auto sprite = Sprite::createWithTexture(texture,Rect(0,visibleSize.width,visibleSize.height));
sprite->setPosition(Vec2(visibleSize.width/2 + origin.x,visibleSize.height/2 + origin.y));
this->addChild(sprite,0);