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Cocos2d-x3.1TestCpp之NewRenderTest Demo分析

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Cocos2d-x3.1TestCpp之NewRenderTest Demo分析

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1、代码构成

VisibleRect.h
VisibleRect.cpp
AppDelegate.h
AppDelegate.cpp
HelloWorldScene.h
HelloWorldScene.cpp
NewRenderTest.h
NewRenderTest.cpp

2、HelloWorld代码

#include "cocos2d.h"
#include "ui/CocosGUI.h"
USING_NS_CC;
using namespace ui;

class HelloWorld : public cocos2d::Layer
{
public:
    // there's no 'id' in cpp, so we recommend returning the class instance pointer
    static cocos2d::Scene* createScene();

    // Here's a difference. Method 'init' in cocos2d-x returns bool, instead of returning 'id' in cocos2d-iphone
    virtual bool init();  
    
    // a selector callback
    void menuCloseCallback(cocos2d::Ref* pSender);
    void touchEvent(Ref *pSender, cocos2d::ui::Widget::TouchEventType type);

    // implement the "static create()" method manually
    CREATE_FUNC(HelloWorld);
};

#include "HelloWorldScene.h"
#include "NewRenderTest.h"
USING_NS_CC;

Scene* HelloWorld::createScene()
{
    // 'scene' is an autorelease object
    auto scene = Scene::create();
    
    // 'layer' is an autorelease object
    auto 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 ( !Layer::init() )
    {
        return false;
    }
    
    Size visibleSize = Director::getInstance()->getVisibleSize();
    Vec2 origin = Director::getInstance()->getVisibleOrigin();

    /////////////////////////////
    // 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
    auto closeItem = MenuItemImage::create(
                                           "CloseNormal.png",
                                           "CloseSelected.png",
                                           CC_CALLBACK_1(HelloWorld::menuCloseCallback, this));
    
	closeItem->setPosition(Vec2(origin.x + visibleSize.width - closeItem->getContentSize().width/2 ,
                                origin.y + closeItem->getContentSize().height/2));

    // create menu, it's an autorelease object
    auto menu = Menu::create(closeItem, NULL);
    menu->setPosition(Vec2::ZERO);
    this->addChild(menu, 1);

    auto text = Text::create();
    text->setString("click");
    text->setFontSize(40);
    text->setPosition(Vec2(200,200));
    addChild(text);
    text->addTouchEventListener(CC_CALLBACK_2(HelloWorld::touchEvent, this));
    
    return true;
}

void HelloWorld::touchEvent(cocos2d::Ref *pSender, cocos2d::ui::Widget::TouchEventType type)
{
    switch (type) {
        case cocos2d::ui::Widget::TouchEventType::ENDED:
        {
            auto temp = NewRendererDemo::create();
            Director::getInstance()->replaceScene(temp);
            break;
        }
        default:
            break;
    }
}

void HelloWorld::menuCloseCallback(Ref* pSender)
{
#if (CC_TARGET_PLATFORM == CC_PLATFORM_WP8) || (CC_TARGET_PLATFORM == CC_PLATFORM_WINRT)
	MessageBox("You pressed the close button. Windows Store Apps do not implement a close button.","Alert");
    return;
#endif

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

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

3、NewRendererTest代码

#include "cocos2d.h"
#include "ui/CocosGUI.h"
#include "VisibleRect.h"
#include "../cocos2d/cocos/renderer/CCRenderer.h"
USING_NS_CC;
using namespace ui;
//宏定义，用于NewClippingNodeTest
#define kTagSpriteBatchNode 100
#define kTagClipperNode     101
#define kTagContentNode     102
//父类Scene。首先执行HelloWorld中的Scene，然后该Scene类replace HelloWorld使用的Scene
class NewRendererDemo : public Scene
{
public:
    CREATE_FUNC(NewRendererDemo);
    virtual bool init();
};
//父类Layer，该Layer载入NewRenderDemo所创建的Scene上
class BaseTest : public cocos2d::Layer
{
public:
    CREATE_FUNC(BaseTest);
    virtual std::string title() const;//标题
    virtual std::string subtitle() const;//副标题

    virtual void restartCallback(Ref* sender);//又一次执行当前test
    virtual void nextCallback(Ref* sender);//下一个test
    virtual void backCallback(Ref* sender);//上一个test
    
    virtual bool init();
    void menuCloseCallback(cocos2d::Ref* pSender);//关闭菜单回调函数
};
//基类Layer，全部測试Demo均继承自该类，而该类继承自BaseTest。BaseTest继承自Layer
class MultiSceneTest : public BaseTest
{
public:
    CREATE_FUNC(MultiSceneTest);
    virtual std::string title() const;
    virtual std::string subtitle() const;
    
    virtual void restartCallback(Ref* sender);
    virtual void nextCallback(Ref* sender);
    virtual void backCallback(Ref* sender);
};
//第一个測试
class NewSpriteTest : public MultiSceneTest
{
public:
    CREATE_FUNC(NewSpriteTest);
    virtual std::string title() const;
    virtual std::string subtitle() const;
    virtual bool init();
    void createSpriteTest();
    void createNewSpriteTest();
    void onTouchesEnded(const std::vector<Touch*>& touches,Event* event);
};
//第二个測试
class GroupCommandTest : public MultiSceneTest
{
public:
    CREATE_FUNC(GroupCommandTest);
    virtual bool init();
    virtual std::string title() const override;
    virtual std::string subtitle() const override;
};
//第三个測试
class NewSpriteBatchTest : public MultiSceneTest
{
public:
    CREATE_FUNC(NewSpriteBatchTest);
    virtual bool init();
    virtual std::string title() const override;
    virtual std::string subtitle() const override;

    void onTouchesEnded(const std::vector<Touch*>& touches,Event* event);
    void addNewSpriteWithCoords(Vec2 p);
};
//第四个測试
class NewClippingNodeTest : public MultiSceneTest
{
public:
    CREATE_FUNC(NewClippingNodeTest);
    virtual bool init();
    virtual std::string title() const override;
    virtual std::string subtitle() const override;
    
    void onTouchesBegan(const std::vector<Touch*>& touches,Event* event);
    void onTouchesMoved(const std::vector<Touch*>& touches,Event* event);
    void onTouchesEnded(const std::vector<Touch*>& touches,Event* event);
    
protected:
    bool _scrolling;
    Vec2 _lastPoint;
};

//第五个測试
class NewDrawNodeTest : public MultiSceneTest
{
public:
    CREATE_FUNC(NewDrawNodeTest);
    virtual bool init();
    virtual std::string title() const override;
    virtual std::string subtitle() const override;
};
//第六个測试
class NewCullingTest : public MultiSceneTest
{
public:
    CREATE_FUNC(NewCullingTest);
    virtual std::string title() const override;
    virtual std::string subtitle() const override;
    virtual bool init();
protected:
    bool onTouchBegan(Touch*,Event* event);
    void onTouchMoved(Touch* touch,Event* event);
    Vec2 _lastPos;
};
//第七个測试
class VBOFullTest : public MultiSceneTest
{
public:
    CREATE_FUNC(VBOFullTest);
    virtual bool init();
    virtual std::string title() const override;
    virtual std::string subtitle() const override;
};

#include "NewRenderTest.h"
#include "HelloWorldScene.h"
//宏定义，实现类的创建
#define CL(__className__) [](){ return __className__::create();}
#define CLN(__className__) [](){ auto obj = new __className__(); obj->autorelease(); return obj; }
//基类Layer。实现关闭按钮、下一个測试、当前測试、下一个測试菜单项的布局与事件响应
bool BaseTest::init()
{
    bool bRet = true;
    do{
        CC_BREAK_IF(!Layer::init());
        
        Size visibleSize = Director::getInstance()->getVisibleSize();
        Vec2 origin = Director::getInstance()->getVisibleOrigin();
        
        /////////////////////////////
        // 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
        auto closeItem = MenuItemImage::create(
                                               "CloseNormal.png",
                                               "CloseSelected.png",
                                               CC_CALLBACK_1(BaseTest::menuCloseCallback, this));
        closeItem->setPosition(Vec2(origin.x + visibleSize.width - closeItem->getContentSize().width/2 ,
                                    origin.y + visibleSize.height - closeItem->getContentSize().height/2));
        
        // create menu, it's an autorelease object
        auto menu1 = Menu::create(closeItem, NULL);
        menu1->setPosition(Vec2::ZERO);
        this->addChild(menu1, 1);

        std::string str = title();
        const char * pTitle = str.c_str();
        TTFConfig ttfConfig("tahoma.ttf", 35);
        auto label = Label::createWithTTF(ttfConfig,pTitle);
        addChild(label, 9999);
        label->setPosition( Vec2(VisibleRect::center().x, VisibleRect::top().y - 30) );
        
        std::string strSubtitle = subtitle();
        if( ! strSubtitle.empty() )
        {
            ttfConfig.fontFilePath = "tahoma.ttf";
            ttfConfig.fontSize = 30;
            auto l = Label::createWithTTF(ttfConfig,strSubtitle.c_str());
            addChild(l, 9999);
            l->setPosition( Vec2(VisibleRect::center().x, VisibleRect::top().y - 100) );
        }
        
        auto item1 = MenuItemFont::create("backCallback", CC_CALLBACK_1(BaseTest::backCallback, this) );
        auto item2 = MenuItemFont::create("restartCallback", CC_CALLBACK_1(BaseTest::restartCallback, this) );
        auto item3 = MenuItemFont::create("nextCallback", CC_CALLBACK_1(BaseTest::nextCallback, this) );
        
        auto menu = Menu::create(item1, item2, item3, NULL);
        
        menu->setPosition(Vec2::ZERO);
        item1->setPosition(Vec2(VisibleRect::center().x - item2->getContentSize().width*2, VisibleRect::bottom().y+item2->getContentSize().height/2));
        item2->setPosition(Vec2(VisibleRect::center().x, VisibleRect::bottom().y+item2->getContentSize().height/2));
        item3->setPosition(Vec2(VisibleRect::center().x + item2->getContentSize().width*2, VisibleRect::bottom().y+item2->getContentSize().height/2));
        
        addChild(menu, 9999);
        
        bRet = true;
    }while(0);
    return bRet;
}

void BaseTest::menuCloseCallback(Ref* pSender)
{
#if (CC_TARGET_PLATFORM == CC_PLATFORM_WP8) || (CC_TARGET_PLATFORM == CC_PLATFORM_WINRT)
	MessageBox("You pressed the close button. Windows Store Apps do not implement a close button.","Alert");
    return;
#endif
    
    Director::getInstance()->end();
    
#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
    exit(0);
#endif
}
//标题
std::string BaseTest::title() const
{
	return "";
}
//副标题
std::string BaseTest::subtitle() const
{
	return "";
}
//又一次运行当前test
void BaseTest::restartCallback(Ref* sender)
{
	log("override restart!");
}
//下一个test
void BaseTest::nextCallback(Ref* sender)
{
	log("override next!");
}
//上一个test
void BaseTest::backCallback(Ref* sender)
{
	log("override back!");
}
//索引，用于推断上一个或下一个
static int sceneIdx = -1;
//Layer* nextSpriteTestAction();//下一个
//Layer* backSpriteTestAction();//上一个
//Layer* restartSpriteTestAction();//当前
//函数指针数组
static std::function<Layer*()> createFunctions[] =
{
    CL(NewSpriteTest),
    CL(NewSpriteBatchTest),
    CL(GroupCommandTest),
    CL(NewClippingNodeTest),
    CL(NewDrawNodeTest),
    CL(NewCullingTest),
    CL(VBOFullTest),
};
//获取数组的大小
#define MAX_LAYER (sizeof(createFunctions) / sizeof(createFunctions[0]))
//下一个
Layer* nextTest()
{
    sceneIdx++;
    sceneIdx = sceneIdx % MAX_LAYER;//循环判定
    auto layer = (createFunctions[sceneIdx])();//调用函数指针数组中sceneIdx的函数
//    layer->autorelease();
    return layer;
}
//同上
Layer* prevTest()
{
    sceneIdx--;
    int total = MAX_LAYER;
    if(sceneIdx < 0)
    {
        sceneIdx += total;
    }
    auto layer = (createFunctions[sceneIdx])();
//    layer->autorelease();
    return layer;
}
//同上
Layer* restartTest()
{
    auto layer = (createFunctions[sceneIdx])();
//    layer->autorelease();
    return layer;
}
//基类Scene，各DemoTest的Layer的容器，每一个DemoTest分别使用一个Scene
bool NewRendererDemo::init()
{
    bool bRet = false;
    do{
        CC_BREAK_IF(!Scene::init());
        
        auto layer = nextTest();//首先运行第一个test
        addChild(layer);
        
        bRet = true;
    }while(0);
    return bRet;
}
//基类Layer
std::string MultiSceneTest::title() const
{
    return "New Renderer";
}

std::string MultiSceneTest::subtitle() const
{
    return "MultiSceneTest";
}
//事件回调
void MultiSceneTest::restartCallback(cocos2d::Ref *sender)
{
    auto s = new NewRendererDemo();//首先创建一个Scene。然后将当前的test
    s->addChild(restartTest());//Layer载入到当前Scene
    Director::getInstance()->replaceScene(s);//场景切换，第一个场景切换的是HelloWorld中创建的Scene
    s->release();
}
//事件回调，原理同上
void MultiSceneTest::nextCallback(cocos2d::Ref *sender)
{
    auto s = new NewRendererDemo();
    s->addChild(nextTest());
    Director::getInstance()->replaceScene(s);
    s->release();
}
//事件回调，原理同上
void MultiSceneTest::backCallback(cocos2d::Ref *sender)
{
    auto s = new NewRendererDemo();
    s->addChild(prevTest());
    Director::getInstance()->replaceScene(s);
    s->release();
}
//第一个test
bool NewSpriteTest::init()
{
    bool bRet = false;
    do{
        CC_BREAK_IF(!MultiSceneTest::init());
        
        log("MAX_LAYER = %lu",MAX_LAYER);
        auto touchListener = EventListenerTouchAllAtOnce::create();//事件监听
        touchListener->onTouchesEnded = CC_CALLBACK_2(NewSpriteTest::onTouchesEnded,this);
        createSpriteTest();
        createNewSpriteTest();
        
        bRet = true;
    }while(0);
    return bRet;
}

void NewSpriteTest::createSpriteTest()
{
    auto winSize = Director::getInstance()->getWinSize();
    
    Sprite* parent = Sprite::create("grossini.png");
    parent->setPosition(winSize.width/4,winSize.height/2);
    Sprite* child1 = Sprite::create("grossinis_sister1.png");
    child1->setPosition(0.0f,-20.0f);
    Sprite* child2 = Sprite::create("grossinis_sister2.png");
    child2->setPosition(20.0f,-20.0f);
    Sprite* child3 = Sprite::create("grossinis_sister1.png");
    child3->setPosition(40.0f,-20.0f);
    Sprite* child4 = Sprite::create("grossinis_sister2.png");
    child4->setPosition(60.0f,-20.0f);
    Sprite* child5 = Sprite::create("grossinis_sister2.png");
    child5->setPosition(80.0f,-20.0f);
    Sprite* child6 = Sprite::create("grossinis_sister2.png");
    child6->setPosition(100.0f,-20.0f);
    Sprite* child7 = Sprite::create("grossinis_sister2.png");
    child7->setPosition(120.0f,-20.0f);
    Sprite* child8 = Sprite::create("grossinis_sister2.png");
    child8->setPosition(140.0f,-20.0f);
    
    parent->addChild(child1);
    parent->addChild(child2);
    parent->addChild(child3);
    parent->addChild(child4);
    parent->addChild(child5);
    parent->addChild(child6);
    parent->addChild(child7);
    parent->addChild(child8);
    addChild(parent);
}

void NewSpriteTest::createNewSpriteTest()
{
    auto winSize = Director::getInstance()->getWinSize();
    
    Sprite* parent = Sprite::create("grossini.png");
    parent->setPosition(winSize.width*2/3, winSize.height/2);
    
    Sprite* child1 = Sprite::create("grossinis_sister1.png");
    child1->setPosition(0.0f,-20.0f);
    Sprite* child2 = Sprite::create("grossinis_sister2.png");
    child2->setPosition(20.0f,-20.0f);
    Sprite* child3 = Sprite::create("grossinis_sister1.png");
    child3->setPosition(40.0f,-20.0f);
    Sprite* child4 = Sprite::create("grossinis_sister2.png");
    child4->setPosition(60.0f,-20.0f);
    Sprite* child5 = Sprite::create("grossinis_sister2.png");
    child5->setPosition(80.0f,-20.0f);
    Sprite* child6 = Sprite::create("grossinis_sister2.png");
    child6->setPosition(100.0f,-20.0f);
    Sprite* child7 = Sprite::create("grossinis_sister2.png");
    child7->setPosition(120.0f,-20.0f);
    Sprite* child8 = Sprite::create("grossinis_sister2.png");
    child8->setPosition(140.0f,-20.0f);
    
    parent->addChild(child1);
    parent->addChild(child2);
    parent->addChild(child3);
    parent->addChild(child4);
    parent->addChild(child5);
    parent->addChild(child6);
    parent->addChild(child7);
    parent->addChild(child8);
    addChild(parent);
}

void NewSpriteTest::onTouchesEnded(const std::vector<Touch *> &touches, cocos2d::Event *event)
{
    
}

std::string NewSpriteTest::title() const
{
    return "Renderer";
}

std::string NewSpriteTest::subtitle() const
{
    return "SpriteTest";
}
//工具类，通过finename创建Sprite对象
class SpriteInGroupCommand : public Sprite
{
protected:
    GroupCommand _spriteWrapperCommand;
public:
    static SpriteInGroupCommand* create(const std::string filename);//创建函数
    virtual void draw(Renderer* renderer,const Mat4 &transform,bool transformUpdated) override;
};

SpriteInGroupCommand* SpriteInGroupCommand::create(const std::string filename)
{
    SpriteInGroupCommand* sprite = new SpriteInGroupCommand();
    sprite->initWithFile(filename);
    sprite->autorelease();
    return sprite;
}
void SpriteInGroupCommand::draw(cocos2d::Renderer *renderer, const cocos2d::Mat4 &transform, bool transformUpdated)
{
    CCASSERT(renderer, "Renderer is null");
    _spriteWrapperCommand.init(_globalZOrder);
    renderer->addCommand(&_spriteWrapperCommand);
    renderer->pushGroup(_spriteWrapperCommand.getRenderQueueID());
    Sprite::draw(renderer, transform, transformUpdated);
    renderer->popGroup();
}
//第二个test
bool GroupCommandTest::GroupCommandTest::init()
{
    bool bRet = false;
    do{
        CC_BREAK_IF(!MultiSceneTest::init());
        
        auto sprite = SpriteInGroupCommand::create("grossini.png");//使用工具类创建对象
        Size winSize = Director::getInstance()->getWinSize();
        sprite->setPosition(Vec2(winSize.width/2,winSize.height/2));
        addChild(sprite);
        bRet = true;
    }while(0);
    return bRet;
}
std::string GroupCommandTest::title() const
{
    return "Renderer";
}
std::string GroupCommandTest::subtitle() const
{
    return "GroupCommandTest: You should see a sprite";
}
//第三个test
bool NewSpriteBatchTest::init()
{
    bool bRet = false;
    do{
        CC_BREAK_IF(!MultiSceneTest::init());
        //事件监听
        auto touchListener = EventListenerTouchAllAtOnce::create();
        touchListener->onTouchesEnded = CC_CALLBACK_2(NewSpriteBatchTest::onTouchesEnded,this);
        Director::getInstance()->getEventDispatcher()->addEventListenerWithSceneGraphPriority(touchListener, this);//加入到事件分发器
        auto batchNode = SpriteBatchNode::create("grossini_dance_atlas.png");//使用SpriteBatchNode创建对象
        addChild(batchNode,0,kTagSpriteBatchNode);
        bRet = true;
    }while(0);
    return bRet;
}

std::string NewSpriteBatchTest::title() const
{
    return "Renderer";
}
std::string NewSpriteBatchTest::subtitle() const
{
    return "SpriteBatchTest";
}
void NewSpriteBatchTest::onTouchesEnded(const std::vector<Touch *> &touches, cocos2d::Event *event)
{
    for(auto &touch : touches)
    {
        auto location = touch->getLocation();
        addNewSpriteWithCoords(location);
    }
}

void NewSpriteBatchTest::addNewSpriteWithCoords(cocos2d::Vec2 p)
{
    auto batchNode = static_cast<SpriteBatchNode*>(getChildByTag(kTagSpriteBatchNode));
    
    int idx = (int)(CCRANDOM_0_1() * 1400 / 100);
    log("idx = %d",idx);
    int x = (idx%5)*85;
    int y = (idx%5)*121;
    
    auto sprite = Sprite::createWithTexture(batchNode->getTexture(),Rect(x,y,85,121));//随机获取资源文件里的Sprite对象
    batchNode->addChild(sprite);
    sprite->setPosition(Vec2(p.x,p.y));
    //随机运行动作
    ActionInterval* action;
    float random = CCRANDOM_0_1();
    if(random < 0.20)
        action = ScaleBy::create(3, 2);
    else if (random < 0.40)
        action = RotateBy::create(3, 360);
    else if (random < 0.60)
        action = Blink::create(1, 3);
    else if (random < 0.8)
        action = TintBy::create(2, 0, -255, -255);
    else
        action = FadeOut::create(2);
    
    auto action_back = action->reverse();
    auto seq = Sequence::create(action,action_back, NULL);
    sprite->runAction(RepeatForever::create(seq));
}
//第四个test
bool NewClippingNodeTest::init()
{
    bool bRet;
    do{
        CC_BREAK_IF(!MultiSceneTest::init());
        
        auto winSize = Director::getInstance()->getWinSize();
        auto clipper = ClippingNode::create();//创建剪裁对象
        clipper->setTag(kTagClipperNode);
        clipper->setContentSize(Size(200, 200));//设置setContentSize(),点击该区域就可以实现content的移动，它的size与模板stencil的Size没有关系。仅仅要点击区域在clipper设置的ContentSize内就可以拖动content的图片，好像。设置的contentSize越大，content图片越小。
不知道为什么？        clipper->ignoreAnchorPointForPosition(false);        clipper->setAnchorPoint(Vec2::ANCHOR_MIDDLE);        clipper->setPosition(Vec2(winSize.width/2,winSize.height/2));                clipper->runAction(RepeatForever::create(RotateBy::create(1, 45)));//旋转        addChild(clipper);                clipper->setAlphaThreshold(0.05f);//属性设置        auto stencil = Sprite::create("grossini.png");        stencil->ignoreAnchorPointForPosition(false);        stencil->setAnchorPoint(Vec2::ANCHOR_MIDDLE);        clipper->setStencil(stencil);//模板设置        //模板也可为DrawNode，可凝视掉上面stencil的定义，取消此处凝视。查看效果//        auto stencil = DrawNode::create();//        Vec2 rectangle[4];//        rectangle[0] = Vec2(0, 0);//        rectangle[1] = Vec2(clipper->getContentSize().width, 0);//        rectangle[2] = Vec2(clipper->getContentSize().width, clipper->getContentSize().height);//        rectangle[3] = Vec2(0, clipper->getContentSize().height);////        Color4F white(1, 1, 1, 1);//        stencil->drawPolygon(rectangle, 4, white, 1, white);//        clipper->setStencil(stencil);                //设置剪裁检点要显示的内容        auto content = Sprite::create("HelloWorld.png");        content->setTag(kTagContentNode);        content->ignoreAnchorPointForPosition(false);        content->setAnchorPoint(Vec2::ANCHOR_MIDDLE);        content->setPosition(Vec2(clipper->getContentSize().width/2,clipper->getContentSize().height/2));        clipper->addChild(content);                _scrolling = false;        //此处为測试用的。与demo无关        auto sprite = Sprite::create("grossini.png");        sprite->setPosition(Vec2(winSize.width/4,winSize.height/2));        addChild(sprite);        //多点触摸事件处理        auto listener = EventListenerTouchAllAtOnce::create();        listener->onTouchesBegan = CC_CALLBACK_2(NewClippingNodeTest::onTouchesBegan,this);        listener->onTouchesMoved = CC_CALLBACK_2(NewClippingNodeTest::onTouchesMoved,this);        listener->onTouchesEnded = CC_CALLBACK_2(NewClippingNodeTest::onTouchesEnded,this);        Director::getInstance()->getEventDispatcher()->addEventListenerWithSceneGraphPriority(listener, this);                        bRet = true;    }while(0);    return bRet;}void NewClippingNodeTest::onTouchesBegan(const std::vector<Touch *> &touches, cocos2d::Event *event){    Touch* touch = touches[0];    auto clipper = this->getChildByTag(kTagClipperNode);    Vec2 point = clipper->convertToNodeSpace(Director::getInstance()->convertToGL(touch->getLocation()));    log("point.w = %f,point.h = %f",point.x,point.y);    auto rect = Rect(0,0,clipper->getContentSize().width,clipper->getContentSize().height);    log("clipper.w = %f,clipper.h = %f",clipper->getContentSize().width,clipper->getContentSize().height);    _scrolling = rect.containsPoint(point);    _lastPoint = point;}//使content图片尾随触摸点移动void NewClippingNodeTest::onTouchesMoved(const std::vector<Touch *> &touches, cocos2d::Event *event){    if(!_scrolling) return;    Touch* touch = touches[0];    auto clipper = this->getChildByTag(kTagClipperNode);    auto point = clipper->convertToNodeSpace(Director::getInstance()->convertToGL(touch->getLocationInView()));    Vec2 diff = point - _lastPoint;    auto content = clipper->getChildByTag(kTagContentNode);    content->setPosition(content->getPosition() + diff);    _lastPoint = point;}void NewClippingNodeTest::onTouchesEnded(const std::vector<Touch *> &touches, cocos2d::Event *event){    if(!_scrolling) return;    _scrolling = false;}std::string NewClippingNodeTest::title() const{    return "New Renderer";}std::string NewClippingNodeTest::subtitle() const{    return "ClipNode";}//第五个testbool NewDrawNodeTest::init(){    bool bRet = false;    do{        CC_BREAK_IF(!MultiSceneTest::init());                auto winSize = Director::getInstance()->getWinSize();        auto parent = Node::create();//        parent->setPosition(winSize.width/2,winSize.height/2);        addChild(parent);                auto rectNode = DrawNode::create();        Vec2 rectangle[4];        rectangle[0] = Vec2(-50,-50);        rectangle[1] = Vec2(50,-50);        rectangle[2] = Vec2(50,50);        rectangle[3] = Vec2(-50,50);                Color4F white(1,1,1,1);        rectNode->drawPolygon(rectangle, 4, white, 1, white);//使用DrawNode创建对象        rectNode->setPosition(winSize.width/4,winSize.height/4);        parent->addChild(rectNode);                bRet = true;    }while(0);    return bRet;}std::string NewDrawNodeTest::title() const{    return "New Renderer";}std::string NewDrawNodeTest::subtitle() const{    return "DrawNode";}//第六个testbool NewCullingTest::init(){    bool bRet = false;    do{        CC_BREAK_IF(!MultiSceneTest::init());                auto winSize = Director::getInstance()->getWinSize();        auto sprite = Sprite::create("btn-about-normal-vertical.png");        sprite->setRotation(5);        sprite->setPosition(Vec2(winSize.width/2,winSize.height/3));        sprite->setScale(2);        addChild(sprite);                auto sprite2 = Sprite::create("btn-about-normal-vertical.png");        sprite2->setRotation(-85);        sprite2->setPosition(Vec2(winSize.width/2,winSize.height*2/3));        sprite2->setScale(2);        addChild(sprite2);        //触摸事件处理        auto listener = EventListenerTouchOneByOne::create();        listener->setSwallowTouches(true);                listener->onTouchBegan = CC_CALLBACK_2(NewCullingTest::onTouchBegan,this);        listener->onTouchMoved = CC_CALLBACK_2(NewCullingTest::onTouchMoved, this);        Director::getInstance()->getEventDispatcher()->addEventListenerWithSceneGraphPriority(listener, this);        bRet = true;    }while(0);    return bRet;}bool NewCullingTest::onTouchBegan(cocos2d::Touch *touch, cocos2d::Event *event){    auto pos = touch->getLocation();    _lastPos = pos;    return true;}//移动Layervoid NewCullingTest::onTouchMoved(cocos2d::Touch *touch, cocos2d::Event *event){    auto pos = touch->getLocation();    auto offset = pos - _lastPos;    auto layerPos = getPosition();    auto newPos = layerPos + offset;    setPosition(newPos);    _lastPos = pos;}std::string NewCullingTest::title() const{    return "New Render";}std::string NewCullingTest::subtitle() const{    return "Drag the layer to test the result of culling";}//该測试没发现使用的意义bool VBOFullTest::init(){    bool bRet = false;    do{        CC_BREAK_IF(!MultiSceneTest::init());                auto winSize = Director::getInstance()->getWinSize();        Node* parent = Node::create();        parent->setPosition(Vec2(winSize.width/2, winSize.height/2));        addChild(parent);        log("Renderer::VBO_SIZE = %d",Renderer::VBO_SIZE);        for(int i = 0; i < Renderer::VBO_SIZE * 2; ++i)        {            Sprite* sprite = Sprite::create("grossini_dance_01.png");            sprite->setPosition(Vec2(i,0));            parent->addChild(sprite);        }                bRet = true;    }while(0);    return bRet;}std::string VBOFullTest::title() const{    return "New Renderer";}std::string VBOFullTest::subtitle() const{    return "VBO full test,everything should render normally";}

4、VisibleRect代码

        该代码即testcppproject给出的代码。不再赘述。

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