CustomButton.cpp

#include "CustomButton.h"

USING_NS_CC;

CustomButton *CustomButton::createWithFile(const std::string& filename)
{
    CustomButton *pRet = new CustomButton();
    if (pRet && pRet->initWithFile(filename)) {
        pRet->autorelease();
        return pRet;
    }
    CC_SAFE_DELETE(pRet);
    return nullptr;
}

bool CustomButton::initWithFile(const std::string& filename)
{
    if (!Sprite::initWithFile(filename)) {
        return false;
    }
    
    // タッチイベントを登録する
    auto listener = EventListenerTouchOneByOne::create();
    listener->onTouchBegan = [this](Touch *touch, Event *event) {

        log("onTouchBegan");
    
        // タッチされた場所を取得する
        Vec2 touchPos = touch->getLocation();
        
        bool isTouchInSide = this->getBoundingBox().containsPoint(touchPos);
        if (isTouchInSide) {
        
            // タッチされた時に縮めて小さくする
            this->setScale(0.9f);
            this->setColor(Color3B::GRAY);
            
            return true;
        }
        
        return false;
    };
    
    listener->onTouchMoved = [this](Touch *touch, Event *event) {
        log("onTouchMoved");
    };
    
    listener->onTouchEnded = [this](Touch *touch, Event *event) {

        log("onTouchEnded");
        
    
        // タッチが離れた時に元に戻す
        this->setScale(1.0f);
        this->setColor(Color3B::WHITE);
    };
    
    getEventDispatcher()->addEventListenerWithSceneGraphPriority(listener, this);
    
    return true;
}

CustomButton.h

#ifndef __CUSTOM_BUTTON_H__
#define __CUSTOM_BUTTON_H__

#include "cocos2d.h"

class CustomButton : public cocos2d::Sprite
{
public:
    static CustomButton *createWithFile(const std::string& filename);
    
protected:
    virtual bool initWithFile(const std::string& filename);
};

#endif // __CUSTOM_BUTTON_H__