cocos2d-x 3.x 触摸程序 示例

头文件

#ifndef __HELLOWORLD_SCENE_H__
#define __HELLOWORLD_SCENE_H__

#include "cocos2d.h"
USING_NS_CC;

class HelloWorld : public cocos2d::Layer
{
public:
    static cocos2d::Scene* createScene();

    virtual bool init();

    // a selector callback
    void menuCloseCallback(cocos2d::Ref* pSender);

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

//头文件声明 
protected:
    **bool onTouchBegan(Touch *touch,Event *event);
    void onTouchEnded(Touch* touch,Event* event);
    void setListener();
    Sprite* P1sprite;
    Sprite* P2sprite;**
};

#endif // __HELLOWORLD_SCENE_H__

CPP

#include "HelloWorldScene.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);

    /////////////////////////////
    // 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"
    P1sprite = Sprite::create("Closenormal.png");

    // position the sprite on the center of the screen
    P1sprite->setPosition(Vec2(visibleSize.width/2 + origin.x,visibleSize.height/2 + origin.y));

    // add the sprite as a child to this layer
    this->addChild(P1sprite,0);

    P2sprite = Sprite::create("CloseSelected.png");
    //this->setPosition((this->getParent()->getPosition())+ccp(100,100));
    P1sprite->addChild(P2sprite); 
    P2sprite->setVisible(false);

**//调用监听函数**
    setListener();

    return true;
}


void HelloWorld::menuCloseCallback(Ref* pSender)
{
    Director::getInstance()->end();

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

**//监听函数实现**
void HelloWorld::setListener()
{
    auto listener = EventListenerTouchOneByOne::create();
    listener->onTouchBegan = CC_CALLBACK_2(HelloWorld::onTouchBegan,this);
    listener->onTouchEnded = CC_CALLBACK_2(HelloWorld::onTouchEnded,this);
    _eventdispatcher->addEventListenerWithSceneGraPHPriority(listener,P1sprite);
}

bool HelloWorld::onTouchBegan(Touch *touch,Event *event)
{
    return true;
}

**//触摸函数实现**
void HelloWorld::onTouchEnded(Touch* touch,Event* event)
{
    auto target = static_cast<Sprite*>(event->getCurrentTarget());

    Point locationInNode = target->convertTouchToNodeSpace(touch);

    Size size = target->getContentSize();
    Rect rect = Rect(0,0,size.width,size.height);
    if (rect.containsPoint(locationInNode))
    {
        P2sprite->setPosition(this->getPosition() + ccp(random(-240,240),random(-160,160)));
        P2sprite->setVisible(true);
        log("Is contains point random =%d",random(10,50));

    }
    else{
        log("Not contains point");
    }
}

原文地址：https://www.jb51.cc/cocos2dx/339046.html