4.cocos场景和层的调用

调用关系:

• AppDeligate.cpp

   1 bool AppDelegate::applicationDidFinishLaunching() {
   2     // initialize director
   3     auto director = Director::getInstance();
   4     auto glview = director->getOpenGLView();
   5     if(!glview) {
   6         glview = GLViewImpl::createWithRect("MyLayer", Rect(0, 0, 960, 640));
   7         director->setOpenGLView(glview);
   8     }
   9 
  10     director->getOpenGLView()->setDesignResolutionSize(960, 640, ResolutionPolicy::SHOW_ALL);
  11 
  12     // turn on display FPS
  13     director->setDisplayStats(true);
  14 
  15     // set FPS. the default value is 1.0/60 if you don't call this
  16     director->setAnimationInterval(1.0 / 60);
  17 
  18     FileUtils::getInstance()->addSearchPath("res");
  19 
  20     // create a scene. it's an autorelease object
  21     //auto scene = HelloWorld::createScene();
  22 
  23     CCScene *pScene = MyScene::create();
  24 
  25     // run
  26     director->runWithScene(pScene);
  27 
  28     return true;
  29 }

• MyScene.h

   1 #include "cocos2d.h"
   2 USING_NS_CC;
   3 
   4 class MyScene:public CCScene
   5 {
   6 public:
   7     static MyScene *create();
   8     bool init();
   9     
  10     
  11 };

• MyScene.cpp

   1 #include "MyScene.h"
   2 #include "MyLayer.h"
   3 
   4 MyScene *MyScene::create()
   5 {
   6     MyScene *pRet = new MyScene;
   7     if (pRet && pRet->init())
   8     {
   9         pRet->autorelease();
  10     }
  11     else
  12     {
  13         delete pRet;
  14         pRet = NULL;
  15     }
  16     return pRet;
  17  }
  18 bool MyScene::init()
  19 {
  20     CCScene::init();
  21     MyLayer *layer = MyLayer::create();
  22     this->addChild(layer);
  23     return true;
  24 }

• MyLayer.h

  #include "cocos2d.h"
  USING_NS_CC;
  
  class MyLayer : public CCLayer
  {
  public:
  	static MyLayer *create();
  	bool init();
  };
  

  　　

• MyLayer.cpp

  #include "MyLayer.h"
  
  
  
  MyLayer *MyLayer::create()
  {
  	MyLayer *pRet = new MyLayer();
  	if (pRet && pRet->init())
  	{
  		pRet->autorelease();
  	}
  	else
  	{
  		delete pRet;
  		pRet = NULL;
  	}
  	return pRet;
   }
  
   bool MyLayer::init()
   {
  	 if (!CCLayer::init())
  	 {
  		 return false;
  	 }
  	 CCSize winSize = CCDirector::sharedDirector()->getWinSize();
  	 CCSprite *spr = CCSprite::create("shop.jpg");
  	 spr->setPosition(ccp(winSize.width / 4, winSize.height / 2));
  	 addChild(spr); 
  	 return true;
  }