【cocos2d-x 3.7 飞机大战】 决战南海I (十三) 分数场景

分数场景要用到TableView，这个之前也没用过，主要参考网上的代码。cocos2d-x的功能十分强大，以后还有好多东西要学啊！

分数场景类的.h文件中的内容

class ScoreScene : public Layer,public TableViewDataSource,public TableViewDelegate
{
public:
	ScoreScene();
	~ScoreScene();
public:
	static Scene * createScene();
	bool init();
	CREATE_FUNC(ScoreScene);
public:
	void tableCellTouched(TableView *table,TableViewCell * cell){}; 
	TableViewCell * tableCellAtIndex(TableView * table,ssize_t index);
	Size tableCellSizeForIndex(TableView * table,ssize_t index);
	
	ssize_t numberOfCellsInTableView(TableView * table);
	
	void scrollViewDidScroll(ScrollView *){};
	void scrollViewDidZoom(ScrollView *){};

	//对返回键的响应
	void onKeyReleased(EventKeyboard::KeyCode keyCode,Event * pEvent);
private:
	Size size;

.cpp文件

ScoreScene::ScoreScene()
{
}

ScoreScene::~ScoreScene()
{
	_eventDispatcher->removeEventListenersForTarget(this);
}

Scene * ScoreScene::createScene()
{
	auto scene = Scene::create();
	auto layer = ScoreScene::create();
	scene->addChild(layer);
	return scene;
}

bool ScoreScene::init()
{
	if (!Layer::init())
		return false;

	//背景音乐
	CocosDenshion::SimpleAudioEngine::getInstance()->stopBackgroundMusic(true);
	CocosDenshion::SimpleAudioEngine::getInstance()->playBackgroundMusic("sound/BackgroundMusic2.mp3",true);

	size = Director::getInstance()->getWinSize();

	//添加背景图片
	auto background = Sprite::createWithSpriteFrameName("backgroundTollgateTwo.png");
	background->setPosition(Point(size.width / 2,size.height / 2));
	background->setAnchorPoint(Vec2(0.5,0.5));
	this->addChild(background);

	//创建tableView并设置一些参数
	auto tableView = TableView::create(this,Size(size.width,size.height*0.8));
	//设置滑动方向
	tableView->setDirection(ScrollView::Direction::VERTICAL);
	//设置TableViewDelegate
	tableView->setDelegate(this);
	//index的大小是从上到下依次增大
	tableView->setVerticalFillOrder(TableView::VerticalFillOrder::TOP_DOWN);
	//用当前的配置刷新cell
	tableView->reloadData();
	this->addChild(tableView);

	//排名
	auto dictionary = Dictionary::createWithContentsOfFile("fonts/AboutMe.xml");

	auto rankNum = Label::createWithTTF(
		((__String*)(dictionary->objectForKey("rankNum")))->getCString(),"fonts/DFPShaoNvW5-GB.ttf",40);
	rankNum->setColor(Color3B(255,0));
	rankNum->setPosition(Point(size.width*0.4,size.height*0.9));
	this->addChild(rankNum);

	//得分
	auto rankScore = Label::createWithTTF(
		((__String*)(dictionary->objectForKey("rankScore")))->getCString(),40);
	rankScore->setPosition(Point(size.width*0.8,size.height*0.9));
	rankScore->setColor(Color3B(255,0));
	this->addChild(rankScore);

	//对返回键的响应
	auto listener = EventListenerKeyboard::create();
	listener->onKeyReleased = CC_CALLBACK_2(ScoreScene::onKeyReleased,this);
	_eventDispatcher->addEventListenerWithSceneGraphPriority(listener,this);

	return true;
}

//对返回键的响应
void ScoreScene::onKeyReleased(EventKeyboard::KeyCode keyCode,Event * pEvent)
{
	if (keyCode == EventKeyboard::KeyCode::KEY_ESCAPE)
	{
		//背景音乐
		CocosDenshion::SimpleAudioEngine::getInstance()->stopBackgroundMusic(true);
		CocosDenshion::SimpleAudioEngine::getInstance()->playBackgroundMusic("sound/game_start.mp3",true);

		//场景弹出
		Director::getInstance()->popScene();
	}
		
}

//用来设置每个cell的内容的
TableViewCell * ScoreScene::tableCellAtIndex(TableView * table,ssize_t index)
{
	//设置每条记录前边的文本内容
	auto index_text = __String::createWithFormat("%ld",index + 1);

	TableViewCell * cell = table->dequeueCell();
	if (cell == NULL)
	{
		//创建一个cell
		cell = new TableViewCell();
		cell->autorelease();

		//创建显示排名的文本信息
		auto text = Label::createWithTTF(index_text->getCString(),24);
		text->setTag(1024);
		text->setColor(Color3B(255,0));
		//文本信息在cell的中间
		text->setPosition(Point(size.width*0.4,size.height*0.025));
		cell->addChild(text);

		//显示用户得分的文本信息
		auto index_score = __String::createWithFormat("%d",index);
		//根据index值获得得分的文本，因为这个时候的score是int型，所以还需要转化一下类型
		int i_score = UserDefault::getInstance()->getIntegerForKey(index_score->getCString());
		auto * str = __String::createWithFormat("%d",i_score);
		auto score = Label::createWithTTF(
			str->getCString(),24);
		score->setTag(2048);
		//设置坐标
		score->setPosition(Point(size.width*0.8,size.height*0.025));
		score->setColor(Color3B(255,0));
		cell->addChild(score);

	}
	//这里获得的cell是原来的cell，所以原来cell的文本信息等还是原来的，所以要做一些改变
	else
	{
		//通过tag值获得文本，并且改变
		auto text = (Label *)cell->getChildByTag(1024);
		text->setString(index_text->getCString());

		//改变分数
		auto * score = (Label *)cell->getChildByTag(2048);
		auto * index_score = __String::createWithFormat("%d",index);
		
		int i_score = UserDefault::getInstance()->getIntegerForKey(index_score->getCString());
		auto * str = __String::createWithFormat("%d",i_score);
		score->setString(str->getCString());

		if (cell->getChildByTag(100) != NULL)
		{
			Sprite * sprite = (Sprite *)cell->getChildByTag(100);
			sprite->removeFromParentAndCleanup(true);
		}
	}

	if (index == 0 || index == 1 || index == 2)
	{
		Sprite * sprite;
		switch (index)
		{
		case 0:
			sprite = Sprite::createWithSpriteFrameName("gold.png");
			break;
		case 1:
			sprite = Sprite::createWithSpriteFrameName("silvere.png");
			break;
		case 2:
			sprite = Sprite::createWithSpriteFrameName("copper.png");
			break;
		}
		sprite->setPosition(Point(size.width*0.15,size.height*0.025));
		sprite->setTag(100);
		cell->addChild(sprite);
	}

	return cell;
}

//这个函数是用来设置每个cell的大小的
Size ScoreScene::tableCellSizeForIndex(TableView * table,ssize_t index)
{
	return Size(size.width,size.height*0.05);
}

//这个函数是用来设置cell的个数的
ssize_t ScoreScene::numberOfCellsInTableView(TableView * table)
{
	//个数是从XML文件中读取到的，有多少条记录，就设置多少个cell，如果刚开始没有count这个字段，就返回0
	int count = UserDefault::getInstance()->getIntegerForKey("count",0);

	return count;
}

好了，这个游戏到这里就已经完成啦！再有的就是移植到其它平台了。我是将这个游戏移植到了Android平台。

代码以及资源文件

资源文件