Quick and Easy Sprite –Victorian Rush Hour - Cocos2d-x by Example Beginner's Guide - page 196

we want. We can, in other words, build an entire test game with one tiny image.
Which is what we'll proceed to do now.
5. So, to finish up here, add these last lines:
_terrain = Terrain::create();
_gameBatchNode->addChild(_terrain, kMiddleground);
_player = Player::create();
_gameBatchNode->addChild(_player, kBackground);