cocos2dx3.0图像拼接（像素匹配）

主逻辑类

#ifndef __HELLOWORLD_SCENE_H__#define __HELLOWORLD_SCENE_H__#include "cocos2d.h"#include "Paddle.h"class HelloWorld : public cocos2d::Layer{public:    // Here's a difference. Method 'init' in cocos2d-x returns bool, instead of returning 'id' in cocos2d-iphone    virtual bool init();      // there's no 'id' in cpp, so we recommend returning the class instance pointer    static cocos2d::Scene* scene();     CREATE_FUNC(HelloWorld);  void menuCallbackMatching(Ref * sender);void createMenuControl( );std::vector<std::string> itemTextVector;std::vector<MenuItemLabel*> menuItemVector;  Menu* _matchingMenu;Paddle* sp1;Paddle* sp2;int width1 ;int height1;int width2 ;int height2;int x1;int y1;int x2;int y2;};#endif // __HELLOWORLD_SCENE_H__

#include "HelloWorldScene.h"#include <functional>USING_NS_CC;#define  LINE_SPACE 40//int HelloWorld::num = 0;Scene* HelloWorld::scene(){    // 'scene' is an autorelease object    auto scene = Scene::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 instancebool HelloWorld::init(){    //////////////////////////////    // 1. super init first    if ( !Layer::init() )    {        return false;    }auto visibleSize = Director::getInstance()->getVisibleSize();CCImage * image1 = new CCImage();//加载 图片image1->initWithImageFile("image.png");width1 = image1->getWidth();height1 = image1->getHeight();unsigned char *data_1=image1->getData();unsigned int *pixelOrign1 = (unsigned int *)data_1;unsigned int *pixel1 = NULL;CCImage * image2 = new CCImage();//加载 图片image2->initWithImageFile("image2.png");width2 = image2->getWidth();height2 = image2->getHeight();unsigned char *data_2=image2->getData();unsigned int *pixelOrign2 = (unsigned int *)data_2;unsigned int *pixel2 = NULL;for (int i = 0; i< width1* height1; i++){pixel1 = pixelOrign1 +i;        for (int j = 0; j< width2* height2; j++){pixel2 = pixelOrign2 +j;        if (*pixel1 == *pixel2&&*(pixel1+1) == *(pixel2+1)&&*(pixel1+width1) == *(pixel2+width2)){x1 = i%width1;y1 = i/width1;x2 = j%width2;y2 = j/width2;log("%d, %d", i, j);goto Break;}}}Break: Texture2D* imageTexture =  TextureCache::getInstance()->addImage("image.png"); Texture2D* imageTexture2 =  TextureCache::getInstance()->addImage("image2.png");Size winSize = Director::getInstance()->getWinSize();sp1 = Paddle::createWithTexture(imageTexture);sp1->setAnchorPoint(Point(0,0));sp1->setPosition(Point(winSize.width/2, winSize.height/2));sp2 = Paddle::createWithTexture(imageTexture2);sp2->setAnchorPoint(Point(0,0));sp2->setPosition(Point(winSize.width/2, winSize.height/2));sp1->setMuxPaddle(sp2);sp2->setMuxPaddle(sp1);this->addChild(sp1);this->addChild(sp2);itemTextVector.push_back("matching"); createMenuControl();    return true;}void HelloWorld::createMenuControl(){_matchingMenu = Menu::create();for (int i = 0; i < itemTextVector.size(); ++i){auto label = LabelTTF::create( itemTextVector[i].c_str(), "Arial", 40);     auto menuItem = MenuItemLabel::create(label,std::bind(&HelloWorld::menuCallbackMatching,this, std::placeholders::_1));// if (i == 0)// {// menuItem->setColor(Color3B(255,100,100));// }menuItemVector.push_back(menuItem);_matchingMenu->addChild(menuItem, i + 10000,i + 10000);menuItem->setAnchorPoint(Point(0,0));menuItem->setPosition( Point(10, (Director::getInstance()->getWinSize().height - (i+ 1) * LINE_SPACE) ));}_matchingMenu->setPosition(Point(0,0));_matchingMenu->setZOrder(100);this->addChild(_matchingMenu);}// void HelloWorld::menuCallbackMatching(Ref * sender){Director::getInstance()->purgeCachedData();auto menuItem = static_cast<MenuItem *>(sender);//menuItem->setColor(Color3B(255,100,100));int idx = menuItem->getLocalZOrder() - 10000;if (idx == 0){sp2->runAction(MoveTo::create(0.5f,sp1->getPosition()+Point(x1,height1 - y1)-Point(x2,height2 - y2)));}else if(idx == 1){}}

精力拖动类

#ifndef _PADDLE_H_#define _PADDLE_H_#include "cocos2d.h"USING_NS_CC;typedef enum tagPaddleState {kPaddleStateGrabbed,kPaddleStateUngrabbed} PaddleState; class Paddle : public Sprite, public Clonable{PaddleState        _state;public:Paddle(void);virtual ~Paddle(void);Rect getRect();bool initWithTexture(Texture2D* aTexture);virtual void onEnter() override;virtual void onExit() override;bool containsTouchLocation(Touch* touch);bool onTouchBegan(Touch* touch, Event* event);void onTouchMoved(Touch* touch, Event* event);void onTouchEnded(Touch* touch, Event* event);virtual Paddle* clone() const;static Paddle* createWithTexture(Texture2D* aTexture);Paddle* muxPaddle;void setMuxPaddle( Paddle* paddle);Point oldP;};#endif

#include "Paddle.h"Paddle::Paddle(void){}Paddle::~Paddle(void){}Rect Paddle::getRect(){auto s = getTexture()->getContentSize();return Rect(-s.width / 2, -s.height / 2, s.width, s.height);}Paddle* Paddle::createWithTexture(Texture2D* aTexture){Paddle* pPaddle = new Paddle();pPaddle->initWithTexture(aTexture);pPaddle->setContentSize(aTexture->getContentSize());pPaddle->autorelease();return pPaddle;}bool Paddle::initWithTexture(Texture2D* aTexture){if( Sprite::initWithTexture(aTexture) ){_state = kPaddleStateUngrabbed;}return true;}void Paddle::onEnter(){Sprite::onEnter();// Register Touch Eventauto listener = EventListenerTouchOneByOne::create();listener->setSwallowTouches(true);listener->onTouchBegan = CC_CALLBACK_2(Paddle::onTouchBegan, this);listener->onTouchMoved = CC_CALLBACK_2(Paddle::onTouchMoved, this);listener->onTouchEnded = CC_CALLBACK_2(Paddle::onTouchEnded, this);_eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this);}void Paddle::onExit(){//    auto director = Director::getInstance();//    director->getTouchDispatcher()->removeDelegate(this);Sprite::onExit();}    bool Paddle::containsTouchLocation(Touch* touch){return getRect().containsPoint(convertTouchToNodeSpaceAR(touch) - Point(this->getContentSize().width/2, this->getContentSize().height/2));}bool Paddle::onTouchBegan(Touch* touch, Event* event){CCLOG("Paddle::onTouchBegan id = %d, x = %f, y = %f", touch->getID(), touch->getLocation().x, touch->getLocation().y);if (_state != kPaddleStateUngrabbed) return false;if ( !containsTouchLocation(touch) ) return false;this->setZOrder(1);muxPaddle->setZOrder(0);oldP = touch->getLocation();_state = kPaddleStateGrabbed;CCLOG("return true");return true;}void Paddle::onTouchMoved(Touch* touch, Event* event){// If it weren't for the TouchDispatcher, you would need to keep a reference// to the touch from touchBegan and check that the current touch is the same// as that one.// Actually, it would be even more complicated since in the Cocos dispatcher// you get Sets instead of 1 UITouch, so you'd need to loop through the set// in each touchXXX method.CCLOG("Paddle::onTouchMoved id = %d, x = %f, y = %f", touch->getID(), touch->getLocation().x, touch->getLocation().y);CCASSERT(_state == kPaddleStateGrabbed, "Paddle - Unexpected state!");    auto touchPoint = touch->getLocation();setPosition( this->getPosition()+touchPoint-oldP );oldP = touchPoint;}Paddle* Paddle::clone() const{Paddle* ret = Paddle::createWithTexture(_texture);ret->_state = _state;ret->setPosition(getPosition());ret->setAnchorPoint(getAnchorPoint());return ret;}void Paddle::onTouchEnded(Touch* touch, Event* event){CCASSERT(_state == kPaddleStateGrabbed, "Paddle - Unexpected state!");    _state = kPaddleStateUngrabbed;} void Paddle::setMuxPaddle( Paddle* paddle ){muxPaddle = paddle;}