Unity3D

#include "HelloWorldScene.h"
#include "SimpleAudioEngine.h"

using namespace cocos2d;
using namespace CocosDenshion;

CCScene* HelloWorld::scene()
{
    // 'scene' is an autorelease object
    CCScene *scene = CCScene::create();
   
    // 'layer' is an autorelease object
    HelloWorld *layer = HelloWorld::create();

    // add layer as a child to scene
    scene->addChild(layer);

    // return the scene
    return scene;
}

// on "init" you need to initialize your instance
bool HelloWorld::init()
{
    //////////////////////////////
    // 1. super init first
    if ( !CCLayer::init() )
    {
        return false;
    }

    /////////////////////////////
    // 2. add a menu item with "X" image, which is clicked to quit the program
    //    you may modify it.

    // add a "close" icon to exit the progress. it's an autorelease object
    CCMenuItemImage *pCloseItem = CCMenuItemImage::create(
                                        "CloseNormal.png",
                                        "CloseSelected.png",
                                        this,
                                        menu_selector(HelloWorld::menuCloseCallback) );
    pCloseItem->setPosition( ccp(CCDirector::sharedDirector()->getWinSize().width - 20, 20) );

    // create menu, it's an autorelease object
    CCMenu* pMenu = CCMenu::create(pCloseItem, NULL);
    pMenu->setPosition( CCPointZero );
    this->addChild(pMenu, 1);
   
    CCSize winS = CCDirector::sharedDirector()->getWinSize();
   
   
    sprite1 = CCSprite::create("HelloWorld.png");
    this->addChild(sprite1);
    sprite1->setPosition(ccp(0, 0));
    sprite1->setAnchorPoint(ccp(0,0));
   
    sprite2 = CCSprite::create("HelloWorld.png");
    this->addChild(sprite2);
    sprite2->setPosition(ccp(winS.width/2, 0));
    sprite2->setAnchorPoint(ccp(0,0));
   
   
   
   
    backSpeed = ccp(-2,0);
   
   
    this->schedule(schedule_selector(HelloWorld::gameLogic));
    return true;
}

void HelloWorld::gameLogic(float dt)
{
    sprite1->setPositionX(sprite1->getPositionX()+backSpeed.x);
    sprite2->setPositionX(sprite2->getPositionX()+backSpeed.x);
    if(sprite1->getPositionX() < -sprite1->getContentSize().width)
    {
        CCSprite *tmp;
        tmp = sprite1;
        sprite1 = sprite2;
        sprite2 = tmp;
        sprite2->setPosition(ccp(sprite1->getPositionX()+sprite1->getContentSize().width, 0));
    }
   
}
void HelloWorld::menuCloseCallback(CCObject* pSender)
{
    CCDirector::sharedDirector()->end();

#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
    exit(0);
#endif
}

CCAction사용하면 쉽게 할수있음

ParallaxNode 사용해도 쉽게 할수있음