cocos2dx 3.2 实现鼠标拖动精灵移动的效果！

来源：互联网发布：arm linux交叉编译编辑：程序博客网时间：2024/04/29 08:16
直接上代码，非常简单
#include "HelloWorldScene.h"#define MOVESPEED 0.5USING_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 instancebool HelloWorld::init(){    //////////////////////////////    // 1. super init first    if ( !Layer::init() )    {        return false;    }    Size visibleSize = Director::getInstance()->getVisibleSize();    Vec2 origin = Director::getInstance()->getVisibleOrigin();    sprite = Sprite::create("CloseNormal.png");    sprite->setPosition(visibleSize.width / 2, visibleSize.height / 2);    this->addChild(sprite);    currentPoint = sprite->getPosition();    auto listener = EventListenerTouchOneByOne::create();    listener->onTouchBegan = CC_CALLBACK_2(HelloWorld::onTouchBegan, this);    listener->onTouchMoved = CC_CALLBACK_2(HelloWorld::onTouchMoved, this);    _eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this);    this->schedule(schedule_selector(HelloWorld::updatePoint));    return true;}void HelloWorld::updatePoint(float dt) {    sprite->setPosition(sprite->getPosition() + (currentPoint - sprite->getPosition())*MOVESPEED);}bool HelloWorld::onTouchBegan(Touch* touch, Event* event) {    auto touchLocation = touch->getLocation();    if (sprite->getBoundingBox().containsPoint(touchLocation)) {        currentPoint = touchLocation;    }    return true;}void HelloWorld::onTouchMoved(Touch* touch, Event* event) {    auto touchLocation = touch->getLocation();//  sprite->setPosition(sprite->getPosition() + touchLocation - currentPoint);    currentPoint = touchLocation;}
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