[Cocos2d-x v3.0] Scale the background image to fill the Screen

Scale the background image to fill the Screen

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// ask the director for the visible window size // specifically, it return visible size of the OpenGL view in points Size visibleSize = Director::getInstance()->getVisibleSize();       // returns visible origin of the OpenGL view in points. Point origin = Director::getInstance()->getVisibleOrigin();     // create background image from png auto bgImage = Sprite::create("HelloWorld.png");   // position the sprite on the center of the screen bgImage->setPosition(Point(visibleSize.width/2 + origin.x, visibleSize.height/2 + origin.y));   // add background image at z-position = -1, bottom of all // the z-position value is relative to parent this->addChild(bgImage, -1);       // calculate the scaling factor to fill the screen size float rX = visibleSize.width / bgImage->getContentSize().width; float rY = visibleSize.height / bgImage->getContentSize().height;       // set the scaling factor to the background image bgImage->setScaleX(rX); bgImage->setScaleY(rY);