【cocos2dx 3.2】一个都不能死7 游戏结束场景

分析：

1. 创建一个Layer类作为游戏结束场景
2. 把主场景中的碰撞事件改为切换到游戏结束场景
3. 点击Restart切换回主场景重新开始游戏

GameOver.h

#ifndef __GAMEOVER_H__
#define __GAMEOVER_H__

#include "cocos2d.h"
#include "HelloWorldScene.h"

USING_NS_CC;

//头文件必须写上，ifndef，不然会导致出错
//比如xxx定义被否决

class GameOver : public LayerColor
{
public:

	static Scene* createScene();
	virtual bool init();  
	CREATE_FUNC(GameOver);

private:

	LabelTTF *title;
};

#endif

GameOver.cpp

#include "GameOver.h"

Scene* GameOver::createScene()
{
	auto GameOverScene = Scene::create();
	auto GameOverLayer = GameOver::create();
	GameOverScene->addChild(GameOverLayer);
	return GameOverScene;
}
	
bool GameOver::init()
{
	if ( !LayerColor::initWithColor(Color4B(255,69,0,255)))
    {
        return false;
    }

	Size visibelSize = Director::getInstance()->getVisibleSize();

	title = LabelTTF::create();
	title->setString("Game Over!");
	title->setFontSize(60);
	title->setPosition(visibelSize.width/2,visibelSize.height-100);
	addChild(title);

	auto restart = LabelTTF::create();
	restart->setString("Restart!");
	restart->setFontSize(80);
	restart->setPosition(visibelSize.width/2,visibelSize.height/2);
	addChild(restart);

	auto listener = EventListenerTouchOneByOne::create();
	listener->onTouchBegan = [restart](Touch *t,Event *e)
	{
		if(restart->getBoundingBox().containsPoint(restart->convertToNodeSpace(t->getLocation())))
		{
			Director::getInstance()->replaceScene(HelloWorld::createScene());
		}
		return false;
	};
	Director::getInstance()->getEventDispatcher()->addEventListenerWithSceneGraphPriority(listener,restart);

	return true;
}  

效果