cocos2dx3.5 studio c++简单功能实现

这次用c++实现按钮切换场景

studio 2.2.1

framework 3.5

cocos2d-x 3.5

vs2012

在studio里创建一个项目叫Bu吧，当然是c++的

在MainScene.csd上加一个按钮，名称改为play吧

然后发布到vs，拿Vs打开

在src目录下会有HelloWorldScene.cpp和HelloWorldScene.h

打开HelloWorldScene.h头文件

我们要使用cocos2d::ui::Button，及其监听事件，完整的#include和namespace就是这样的

#include "cocos2d.h"
#include "cocostudio/CocoStudio.h"
#include "ui/CocosGUI.h"
#include "editor-support/cocostudio/CCSGUIReader.h"

using namespace cocos2d::ui;
using namespace cocostudio;

在其下定义函数时还要加入点击按钮之后的回调函数
virtual void touchevent(Ref* ref, Widget::TouchEventType touchType);

完整代码如下：
#ifndef __HELLOWORLD_SCENE_H__
#define __HELLOWORLD_SCENE_H__

#include "cocos2d.h"
#include "cocostudio/CocoStudio.h"
#include "ui/CocosGUI.h"
#include "editor-support/cocostudio/CCSGUIReader.h"

using namespace cocos2d::ui;
using namespace cocostudio;

class HelloWorld : public cocos2d::Layer
{
public:
// there's no 'id' in cpp, so we recommend returning the class instance pointer
static cocos2d::Scene* createScene();

// Here's a difference. Method 'init' in cocos2d-x returns bool, instead of returning 'id' in cocos2d-iphone
virtual bool init();

virtual void touchevent(Ref* ref, Widget::TouchEventType touchType);

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

#endif // __HELLOWORLD_SCENE_H__


再来看HelloWorldScene.cpp
假设我们要切换到的场景是SecondScene，当然也有其cpp和h

我们在HelloWorldScene.cpp中加入

#include "SecondScene.h"

在init里面要加入获取studio中创建的按钮，并加上监听事件
Button* btn=static_cast<Button*>(rootNode->getChildByName("play"));
btn->addTouchEventListener(this,toucheventselector(HelloWorld::touchevent));上面第一行是获取Studio中创建的按钮，我们给按钮定义的名称是play，第二行是添加监听事件

最后的touchevent是我们自定义的回调函数，写在init前即可
void HelloWorld::touchevent(Ref* ref, Widget::TouchEventType touchType){
switch (touchType)
{
case cocos2d::ui::Widget::TouchEventType::BEGAN:
break;
case cocos2d::ui::Widget::TouchEventType::MOVED:
break;
case cocos2d::ui::Widget::TouchEventType::ENDED:
Director::getInstance()->replaceScene(SecondScene::createScene());
break;
case cocos2d::ui::Widget::TouchEventType::CANCELED:
break;
default:
break;
}
}

这里TouchEventType有四个，其实我们这个例子真正用的是第三个ENDED
里面的

Director::getInstance()->replaceScene(SecondScene::createScene());就是切换到场景SecondScene
看HelloWorld.cpp整个代码

#include "HelloWorldScene.h"
#include "cocostudio/CocoStudio.h"
#include "ui/CocosGUI.h"
#include "SecondScene.h"

USING_NS_CC;

using namespace cocostudio::timeline;

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;
}

void HelloWorld::touchevent(Ref* ref, Widget::TouchEventType touchType){
switch (touchType)
{
case cocos2d::ui::Widget::TouchEventType::BEGAN:
break;
case cocos2d::ui::Widget::TouchEventType::MOVED:
break;
case cocos2d::ui::Widget::TouchEventType::ENDED:
Director::getInstance()->replaceScene(SecondScene::createScene());
break;
case cocos2d::ui::Widget::TouchEventType::CANCELED:
break;
default:
break;
}
}

// on "init" you need to initialize your instance
bool HelloWorld::init()
{
//////////////////////////////
// 1. super init first
if ( !Layer::init() )
{
return false;
}

auto rootNode = CSLoader::createNode("MainScene.csb");

addChild(rootNode);

Button* btn=static_cast<Button*>(rootNode->getChildByName("play"));
btn->addTouchEventListener(this,toucheventselector(HelloWorld::touchevent));

return true;
}


运行

实现了