Cocos2dx: Pushing and Popping Scenes

In HelloWorld.h:

//The default scene

class HelloWorld : public cocos2d::Layer

{

public:

    

    static cocos2d::Scene* createScene();

   

    virtual bool init();

    

    CREATE_FUNC(HelloWorld);

     

    //Play button will push  NewScene to the stack

    void Play(Ref *pSender);

   

};

In HelloWorld.cpp:

#include "NewScene.h"

bool HelloWorld::init()

{

   

    if ( !Layer::init() )

    {

        return false;

    }

    

    Size visibleSize = Director::getInstance()->getVisibleSize();

    Vec2 origin = Director::getInstance()->getVisibleOrigin();

    auto menu_item_1 = MenuItemFont::create("Play", 

                     CC_CALLBACK_1(HelloWorld::Play, this));

    

    auto *menu = Menu::create(menu_item_1,NULL);

    menu->alignItemsVerticallyWithPadding(40);

    this->addChild(menu);

    

    return true;

}

void HelloWorld::Play(cocos2d::Ref *pSender){

    CCLOG("Play");

    auto scene = NewScene::createScene();

    Director::getInstance()->pushScene(scene);

}

In NewScene.h:

//The scene that is pushed onto the stack

class NewScene : public cocos2d::Layer

{

public:

    

    static cocos2d::Scene* createScene();

    virtual bool init();

    CREATE_FUNC(NewScene);

 

   //GoBack button will pop this scene from the top of the stack

   void GoBack(Ref *pSender);

   

};

In NewScene.cpp:

bool NewScene::init()

{

   

    if ( !Layer::init() )

    {

        return false;

    }

    

    auto menu_item_1 = MenuItemFont::create("Go Back", CC_CALLBACK_1(NewScene::GoBack, this));

   

    auto *menu = Menu::create(menu_item_1,NULL);

    menu->alignItemsVerticallyWithPadding(40);

    this->addChild(menu);

   

    

    return true;

}

void NewScene::GoBack(cocos2d::Ref *pSender){

    Director::getInstance()->popScene();

}