1. 头文件
#ifndef __HELLOWORLD_SCENE_H__ #define __HELLOWORLD_SCENE_H__ #include "cocos2d.h" USING_NS_CC; 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); // implement the "static create()" method manually CREATE_FUNC(HelloWorld); // Event Listener virtual void onEnter() 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); void onKeypressed(EventKeyboard::KeyCode keyCode,Event* event); void onkeyreleased(EventKeyboard::KeyCode keyCode,Event* event); void onMouseDown(Event* event); void onmouseup(Event* event); void onMouseMove(Event* event); void onMouseScroll(Event* event); Vec2 _beginPos; void playTest(float dt); }; #endif // __HELLOWORLD_SCENE_H__
2. 代码
#include "HelloWorldScene.h" #include "MediaManager.h" //USING_NS_CC; void HelloWorld::onEnter() { Layer::onEnter(); auto s = Director::getInstance()->getWinSize(); // Myboard can receive mouse Left and middle and touchscreen auto touchListener = EventListenerTouchAllAtOnce::create(); touchListener->ontouchesBegan = CC_CALLBACK_2(HelloWorld::ontouchesBegan,this); touchListener->ontouchesMoved = CC_CALLBACK_2(HelloWorld::ontouchesMoved,this); touchListener->ontouchesEnded = CC_CALLBACK_2(HelloWorld::ontouchesEnded,this); _eventdispatcher->addEventListenerWithSceneGraPHPriority(touchListener,this); // Process Mouse Right (KEYCODE_BACK) only onkeyreleased auto keyboardListener = EventListenerKeyboard::create(); keyboardListener->onKeypressed = CC_CALLBACK_2(HelloWorld::onKeypressed,this); keyboardListener->onkeyreleased = CC_CALLBACK_2(HelloWorld::onkeyreleased,this); _eventdispatcher->addEventListenerWithSceneGraPHPriority(keyboardListener,this); // Myboard can't receive any mouse events auto mouseListener = EventListenerMouse::create(); mouseListener->onMouseDown = CC_CALLBACK_1(HelloWorld::onMouseDown,this); mouseListener->onMouseMove = CC_CALLBACK_1(HelloWorld::onMouseMove,this); mouseListener->onmouseup = CC_CALLBACK_1(HelloWorld::onmouseup,this); mouseListener->onMouseScroll = CC_CALLBACK_1(HelloWorld::onMouseScroll,this); _eventdispatcher->addEventListenerWithSceneGraPHPriority(mouseListener,this); } void HelloWorld::ontouchesBegan(const std::vector<Touch*>& touches,Event *event) { auto touch = static_cast<Touch*>(touches[0]); _beginPos = touch->getLocation(); log("***EVENT:%s: x=%f,y=%f\n",__FUNCTION__,_beginPos.x,_beginPos.y); } void HelloWorld::ontouchesMoved(const std::vector<Touch*>& touches,Event *event) { auto touch = static_cast<Touch*>(touches[0]); auto touchLocation = touch->getLocation(); log("***EVENT:%s: x=%f,touchLocation.x,touchLocation.y); } void HelloWorld::ontouchesEnded(const std::vector<Touch*>& touches,touchLocation.y); } void HelloWorld::onKeypressed(EventKeyboard::KeyCode keyCode,Event* event) { CC_UNUSED_ParaM(event); log("***EVENT:%s: keyCode=%d\n",keyCode); } void HelloWorld::onkeyreleased(EventKeyboard::KeyCode keyCode,keyCode); if(EventKeyboard::KeyCode::KEY_BACK == keyCode){ Director::getInstance()->end(); } } template <typename T> std::string tostr(const T& t) { std::ostringstream os; os<<t; return os.str(); } void HelloWorld::onMouseDown(Event *event) { EventMouse* e = (EventMouse*)event; std::string str = "Mouse Down detected,Key: "; str += tostr(e->getMouseButton()); //_labelAction->setString(str.c_str()); log("***EVENT:%s:%s\n",str.c_str()); } void HelloWorld::onmouseup(Event *event) { EventMouse* e = (EventMouse*)event; std::string str = "Mouse Up detected,Key: "; str += tostr(e->getMouseButton()); log("***EVENT:%s:%s\n",str.c_str()); } void HelloWorld::onMouseMove(Event *event) { EventMouse* e = (EventMouse*)event; std::string str = "MousePosition X:"; str = str + tostr(e->getCursorX()) + " Y:" + tostr(e->getCursorY()); log("***EVENT:%s:%s\n",str.c_str()); } void HelloWorld::onMouseScroll(Event *event) { EventMouse* e = (EventMouse*)event; //auto e = static_cast<EventMouse*>(event); std::string str = "Mouse Scroll detected,X: "; str = str + tostr(e->getScrollX()) + " Y: " + tostr(e->getScrollY()); log("***EVENT:%s:%s\n",str.c_str()); } 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(); log("TEST: x=%f,y=%f,w=%f,h=%f\n",origin.x,origin.y,visibleSize.width,visibleSize.height); ///////////////////////////// // 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,nullptr);//NULL); menu->setPosition(Vec2::ZERO); this->addChild(menu,1); ///////////////////////////// // 3. add your codes below... // add a label shows "Hello World" // create and initialize a label auto label = Label::createWithTTF("Hello World","fonts/Marker Felt.ttf",24); // position the label on the center of the screen label->setPosition(Vec2(origin.x + visibleSize.width/2,origin.y + visibleSize.height - label->getContentSize().height)); // add the label as a child to this layer this->addChild(label,1); // add "HelloWorld" splash screen" auto sprite = Sprite::create("HelloWorld.png"); // position the sprite on the center of the screen sprite->setPosition(Vec2(visibleSize.width/2 + origin.x,visibleSize.height/2 + origin.y)); // add the sprite as a child to this layer this->addChild(sprite,0); //MediaManager::getInstance()->play("/mnt/sdcard/video/cg720p.mp4"); // every 10s,call HelloWorld::playTest //this->schedule(CC_SCHEDULE_SELECTOR(HelloWorld::playTest),10); return true; } void HelloWorld::playTest(float dt) { //MediaManager::getInstance()->seekTo(20*1000); } 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 }