cocos2dx 3.3 tilemap 缩放滑动并且准确点击对象

#include "SimpleDragZoomLayer.h" //#include "PointExtension.h" SimpleDragZoomLayer* SimpleDragZoomLayer::m_DragZoomManager = NULL; #pragma mark - #pragma mark default init SimpleDragZoomLayer* SimpleDragZoomLayer::sharedInstance() { if(m_DragZoomManager == NULL) { m_DragZoomManager = new SimpleDragZoomLayer(); } return m_DragZoomManager; } SimpleDragZoomLayer::SimpleDragZoomLayer() { // monsterDictionary = CCDictionary::create(); // CC_SAFE_RETAIN(monsterDictionary); bool result = this->cocos2d::Layer::init(); if (result) { //make some instance here. //this->setTouchEnabled(true); init(); } else { CCLOG("create SimpleDragZoomLayer ERROR when instance."); } } SimpleDragZoomLayer::~SimpleDragZoomLayer() { if(!touchesVector.empty()) { touchesVector.clear(); } } void SimpleDragZoomLayer::setZoomContent(Node* content) { this->contentZoomNode = content; content->addChild(this, 99999); this->winSize = Director::getInstance()->getVisibleSize(); this->winRect = Rect(Director::getInstance()->getVisibleOrigin().x, Director::getInstance()->getVisibleOrigin().y, this->winSize.width, this->winSize.height); CCLOG("win origin = %f,%f ; winsize = %f,%f",this->winRect.origin.x,this->winRect.origin.y,this->winRect.size.width,this->winRect.size.height); CCLOG("simple drag zoom layer created."); } bool SimpleDragZoomLayer::init() { CCLOG("SimpleDragZoomLayer::init()"); if ( !Layer::init() ) { return false; } auto listener = EventListenerTouchAllAtOnce::create(); listener->onTouchesBegan = CC_CALLBACK_2(SimpleDragZoomLayer::onTouchesBegan, this); listener->onTouchesMoved = CC_CALLBACK_2(SimpleDragZoomLayer::onTouchesMoved, this); listener->onTouchesEnded = CC_CALLBACK_2(SimpleDragZoomLayer::onTouchesEnded, this); _eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this); } void SimpleDragZoomLayer::onEnter(){ CCLOG("enter"); // isContentAllowTap = true; isContentScalable = true; this->cocos2d::Layer::onEnter(); } /* void SimpleDragZoomLayer::setTouchEnabled(bool value){ this->Layer::setTouchEnabled(value); if (!value) { isContentAllowTap = false; isContentScalable = false; touchesVector.clear(); } } */ #pragma mark - #pragma mark touch delegates * //触摸开始时调用 void SimpleDragZoomLayer::onTouchesBegan(const std::vector<Touch*>& touches, Event *unused_event) { //CCLOG("SimpleDragZoomLayer:onTouchesBegan %d",touches.size()); for (auto &item: touches) { auto touch = item; Point tileMapPoint = contentZoomNode->getPosition(); Point touchPoint = touch->getLocation(); Point realPoint = touchPoint - tileMapPoint; if (touchesVector.contains(touch) == false) { touchesVector.pushBack(touch); } if (isAnimating) { contentZoomNode->stopAllActions(); } if (touchesVector.size() == 1) { m_tScrollDistance = Point(0.0f, 0.0f); m_tTouchPoint = this->convertTouchToNodeSpace(touch); m_fTouchLength = 0.0f; } else if(touchesVector.size() == 2){ //count default length between 2 touches. Point A = contentZoomNode->convertTouchToNodeSpace((Touch*)touchesVector.at(0)); Point B = contentZoomNode->convertTouchToNodeSpace((Touch*)touchesVector.at(1)); m_fTouchLength = A.getDistance(B); m_tTouchPoint = A.getMidpoint(B); } if(m_iDoubleCounter == 1){ // have one touch befored. if (millisecondNow() - m_dTouchTime > DOUBLECLICK_INTERVAL ) { m_iDoubleCounter = 0; //reset when this touch cant be double click. } } } } //触摸移动时调用 void SimpleDragZoomLayer::onTouchesMoved(const std::vector<Touch*>& touches, Event *unused_event) { for (auto &item: touches) //遍历容器中的各个成员！！！多点触摸时将显示同时显示多个精灵 { auto touch = item; if (touchesVector.contains(touch)) { if (touchesVector.size() == 1) { //only scrolling. handleScrol(); } else if(touchesVector.size() >= 2){ //zoom & scroll base on center touch point. handlePitchZoom(); } } } } //触摸结束时调用 void SimpleDragZoomLayer::onTouchesEnded(const std::vector<Touch*>& touches, Event *unused_event) { for (auto &item: touches) //遍历容器中的各个成员！！！多点触摸时将显示同时显示多个精灵 { auto touch = item; if (touchesVector.size() == 1) { /* detect the double click. */ long newTouchTime = millisecondNow(); if (m_iDoubleCounter == 0) { m_dTouchTime = newTouchTime; m_iDoubleCounter++; } else if(m_iDoubleCounter == 1){ // have one touch befored. if (newTouchTime - m_dTouchTime <= DOUBLECLICK_INTERVAL ) { //CCLOG("double click. = %f,%f",pTouch->getLocationInView().x,pTouch->getLocationInView().y); isAnimating = true; AnimateZoom* az = AnimateZoom::create(0.2f, getMaxScaleOfZooming(), Director::getInstance()->convertToGL(Point(Director::getInstance()->getVisibleSize().width * 0.5f,Director::getInstance()->getVisibleSize().height*0.5f)), Director::getInstance()->convertToGL(touch->getLocationInView()), contentZoomNode, this, callback_void(SimpleDragZoomLayer::applyFrameLimits)); CCCallFunc* cf = CCCallFunc::create(this, callfunc_selector(SimpleDragZoomLayer::finishAnimated)); contentZoomNode->runAction(CCSequence::create(az,cf,NULL)); } m_iDoubleCounter = 0; } } //end of touch,remove from array. if (touchesVector.contains(touch)) { touchesVector.eraseObject(touch); } } } #pragma mark - #pragma mark zoom in/out or drag layer void SimpleDragZoomLayer::handleScrol(){ //get min scale of content float minScale = getMinScaleOfContent(); //CCLOG("handleScrol minscale = %f",minScale); //if current scale more than that. //获取当前的scale float curScale = contentZoomNode->getScale(); if (curScale > minScale ) { //get first touch. Touch* touch = (Touch*)touchesVector.at(0); Point touchLocation = touch->getLocationInView(); Point preLocation = touch->getPreviousLocationInView(); touchLocation = Director::getInstance()->convertToGL(touchLocation); preLocation = Director::getInstance()->convertToGL(preLocation); //subtract Point diff = touchLocation - preLocation; //new position Point newPos = contentZoomNode->getPosition() + diff; contentZoomNode->setPosition(newPos); } //last ! make frame limits at view rect! applyFrameLimits(); } void SimpleDragZoomLayer::handlePitchZoom(){ if (!isContentScalable) { return; } //get 2 touch point Touch* touch1 = (Touch*)touchesVector.at(0); Touch* touch2 = (Touch*)touchesVector.at(1); //ca