Calls children's updateTransform() method recursively.
updateTransform()This method is moved from CocosSharp.CCSprite, so it's no longer specific to CocosSharp.CCSprite. As the result, you apply CocosSharp.CCSpriteBatchNode's optimization on your customed CocosSharp.CCNode. e.g., batchNode->addChild(myCustomNode), while you can only addChild(sprite) before.
CocosSharp.CCSprite CocosSharp.CCSprite CocosSharp.CCSpriteBatchNode CocosSharp.CCNode