关于cocos2d-x3.0和2.0之间的区别

http://blog.csdn.net/rexuefengye/article/details/39896603

区别1.去CC

之前2.0的CC**,把CC都去掉，基本的元素都是保留的

 2.0
 CCSprite  CCCallFunc CCNode ..
 3.0
 Sprite CallFunc Node ..

区别2.cc***结构体改变

 2.0
 ccp(x,y)
 ccpAdd(p1,p2)
 ccpSub
 ccpMult
 ccpLength(p)
 ccpDot(p1,p2);
 ccc3()
 ccc4()
 ccWHITE
 CCPointZero
 CCSizeZero


 3.0
 Point(x,y)
 p1+p2;
 p1-p2
 p1*p2
 p.getLength()
 p1.dot(p2)
 Color3B()
 Color4B()
 Color3B::WHITE
 Point::ZERO
 Size:ZERO

区别3.shared***改变(单例机制使用语法)

 2.0
 CCSize winSize = CCDirector::sharedDirector()->getWinSize();
 SpriteFrameCache::sharedSpriteFrameCache()
 AnimationCache::sharedAnimationCache()
 NotificationCenter::sharedNotificationCenter()
 …

 3.0
 Size size = Director::getInstance()->getWinSize();
 SpriteFrameCache::getInstance()
 AnimationCache::getInstance()
 NotificationCenter::getInstance()
 …

区别4.POD类别

 2.0
 CCPoint
 CCSize
 CCRect

 3.0
 Vec2
 Size
 Rect

区别5.点触事件

 auto dispatcher = Director::getInstance()->getEventDispatcher();
 auto touchListener = EventListenerTouchOneByOne::create();
 touchListener->onTouchBegan = CC_CALLBACK_2(FBMainScene::onTouchBegan,this);
 touchListener->onTouchMoved = CC_CALLBACK_2(FBMainScene::onTouchMoved,this);
 touchListener->onTouchEnded = CC_CALLBACK_2(FBMainScene::onTouchEnded, this);
 dispatcher->addEventListenerWithSceneGraphPriority(touchListener, this);

 bool FBMainScene::onTouchBegan(Touch *touch,Event *pEvent){
     CCLOG("onTouchBegan");
     Point point = this->convertToWorldSpace(this->convertTouchToNodeSpace(touch));
     return true;
 }

 void FBMainScene::onTouchMoved(Touch *touch,Event *pEvent){
     CCLOG("onTouchMoved");
 }

 void FBMainScene::onTouchEnded(Touch *touch,Event *pEvent){
     CCLOG("onTouchEnded");
 }

 //获得触点的方法也发生了改变：
 Point point = this->convertToWorldSpace(this->convertTouchToNodeSpace(touch));

 //dispatcher控制方法：
 dispatcher->addEventListener…
 dispatcher->removeEventListener(listener);
 dispatcher->removeAllListeners();

区别6.回调函数

CC_CALLBACK_0 CC_CALLBACK_1 CC_CALLBACK_2 CC_CALLBACK_3

回调函数，分别携带不同的参数，方便

 2.0
 CCMenuItemFont *item = CCMenuItemFont::create("返回上个场景", this, menu_selector(GameScene::backScene));
 3.0
 MenuItemFont *item = MenuItemLabel::create("返回上个场景", CC_CALLBACK_1(GameScene::backScene, this));

 // new callbacks based on C++11
 #define CC_CALLBACK_0(__selector__,__target__, ) std::bind(&__selector__,__target__, ##__VA_ARGS__)
 #define CC_CALLBACK_1(__selector__,__target__, ) std::bind(&__selector__,__target__, std::placeholders::_1, ##__VA_ARGS__)
 #define CC_CALLBACK_2(__selector__,__target__, ) std::bind(&__selector__,__target__, std::placeholders::_1, std::placeholders::_2, ##__VA_ARGS__)
 #define CC_CALLBACK_3(__selector__,__target__, ) std::bind(&__selector__,__target__, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3 ##__VA_ARGS__)

区别7.CallFunc使用(使用"Function"对象)

 CallFunc::create([&](){
         Sprite *sprite = Sprite::create("s");
         this->addChild(sprite);
 });

区别8.使用clone代替copy

 2.0
 CCMoveBy *action = (CCMoveBy*) move->copy();
 action->autorelease();
 3.0
 action = move->clone();
 不需要autorelease，在clone已经实现。

区别9.Physics Integration 物理引擎

 暂无使用，box2d 在 3.0中可以延续使用
 在3.0的Physics中需要定义 PhysicsWorld, PhysicsBody, PhysicsShape, PhysicsJoint 等，于box2d相仿，使用前需要定义CC_USE_PHYSICS

区别10.容器

 2.0
 CCArray


 3.0
 cocos2d::Vector
 cocos2d::Map
 cocos2d::Value