用cocos2dx做一个简单的单机捕鱼达人游戏（1）
我使用了cocos2dx 3.9版本和vs2017来开发
今天先做游戏开始界面

开始界面很简单，一个背景图，一个logo，3个button（三种登录方式），一个背景音乐开关checkbox
游客登录按钮，点击以后调用切换场景的代码，我自己写了一个场景管理SceneManager类，
背景音乐按钮用了lambda表达式 ，背景音乐只有两种状态，进游戏默认播放背景音乐，点击以后停止播放背景音乐。
LoadingLayer.h的代码

#pragma once
#ifndef _LoadingLayer_H_
#define _LoadingLayer_H_
#include"cocos2d.h"
#include "ui\CocosGUI.h"USING_NS_CC;
using namespace ui;
class LoadingLayer:public Layer
{
public:LoadingLayer();~LoadingLayer();static LoadingLayer*create();virtual bool init() override;
private:};#endif // !_LoadingLayer_H_

LoadingLayer.cpp

#include"LoadingLayer.h"
#include"SceneManager.h"// 导入头文件
#include "SimpleAudioEngine.h"
using namespace CocosDenshion;
LoadingLayer::LoadingLayer()
{
}LoadingLayer::~LoadingLayer()
{
}LoadingLayer * LoadingLayer::create()
{// 二段构建--第一段分配内存LoadingLayer* pLayer = new LoadingLayer;// 第二段初始化if (pLayer && pLayer->init()){// 加入自动释放对象池pLayer->autorelease();}else{delete pLayer;pLayer = nullptr;}return pLayer;
}bool LoadingLayer::init()
{// 先初始化父类if (!Layer::init()){return false;}//背景图片添加Sprite*BeiJing = Sprite::create("/loadinglayer/LoadingLayer.png");//加到层上this->addChild(BeiJing);//设置图片的位置BeiJing->setPosition(500,300);//登录界面上方图片添加Sprite*loginUP = Sprite::create("/loadinglayer/LogonUp.png");this->addChild(loginUP);loginUP->setPosition(525, 570);//登录图片加入// 游客登录按钮Button*youkeLogin = Button::create("/loadinglayer/QuickLogon.png","/loadinglayer/QuickLogon.png","/loadinglayer/QuickLogon.png");this->addChild(youkeLogin);//位置设置youkeLogin->setPosition(Vec2(200, 100));//触摸事件响应youkeLogin->addTouchEventListener([&](Ref* ref, Widget::TouchEventType type){//切换场景（点击进入菜单界面）Director::getInstance()->replaceScene(SceneManager::create(MENU_SCENE));});SimpleAudioEngine::getInstance()->playBackgroundMusic("bgMusic.mp3");CheckBox* box = CheckBox::create("open.png", "close.png");this->addChild(box);box->setPosition(Vec2(950, 600));box->setScale(0.6f);//设置缩放box->addEventListener([&](Ref* ref,CheckBox::EventType type){switch (type){case cocos2d::ui::CheckBox::EventType::SELECTED:SimpleAudioEngine::getInstance()->pauseBackgroundMusic();break;case cocos2d::ui::CheckBox::EventType::UNSELECTED:SimpleAudioEngine::getInstance()->resumeBackgroundMusic();break;default:break;}});Sprite*qqLogin = Sprite::create("/loadinglayer/QQLogon.png");this->addChild(qqLogin);qqLogin->setPosition(525, 100);Sprite*wechatLogin = Sprite::create("/loadinglayer/WechatLogon.png");this->addChild(wechatLogin);wechatLogin->setPosition(850, 100);return true;
}