cocos2d-x游戏开发(十五)游戏加载动画loading界面

个人原创，欢迎转载：http://blog.csdn.net/dawn_moon/article/details/11478885

这个资源加载的loading界面demo是在玩客网做逆转三国的时候随手写的，虽然我在那只待了2个礼拜，但是也算参与了一个商业游戏项目了，学到不少东西。当时使用的cocos2d-x还是1.0版的，我用2.1.2的调试过了。

上图：

好了，很简单，代码有注释

上代码：

 

#include "HelloWorldScene.h"

#include "SimpleAudioEngine.h"



using namespace cocos2d;

using namespace CocosDenshion;



CCScene* HelloWorld::scene()

{

    // 'scene' is an autorelease object

    CCScene *scene = CCScene::create();

    

    // 'layer' is an autorelease object

    HelloWorld *layer = HelloWorld::create();



    // add layer as a child to scene

    scene->addChild(layer);



    // return the scene

    return scene;

}



// on "init" you need to initialize your instance

bool HelloWorld::init()

{

    //////////////////////////////

    // 1. super init first

    if ( !CCLayer::init() )

    {

        return false;

    }

    

    m_iLoadIdex = 0;



    /////////////////////////////

    // 2. add a menu item with "X" image, which is clicked to quit the program

    //    you may modify it.



    // add a "close" icon to exit the progress. it's an autorelease object

    CCMenuItemImage *pCloseItem = CCMenuItemImage::create(

                                        "CloseNormal.png",

                                        "CloseSelected.png",

                                        this,

                                        menu_selector(HelloWorld::menuCloseCallback) );

    pCloseItem->setPosition( ccp(CCDirector::sharedDirector()->getWinSize().width - 20, 20) );



    // create menu, it's an autorelease object

    CCMenu* pMenu = CCMenu::create(pCloseItem, NULL);

    pMenu->setPosition( CCPointZero );

    this->addChild(pMenu, 1);



    /////////////////////////////

    // 3. add your codes below...



    // add a label shows "Hello World"

    // create and initialize a label

    CCLabelTTF* pLabel = CCLabelTTF::create("Hello World", "Thonburi", 34);



    // ask director the window size

    CCSize size = CCDirector::sharedDirector()->getWinSize();



    // position the label on the center of the screen

    pLabel->setPosition( ccp(size.width / 2, size.height - 20) );



    // add the label as a child to this layer

    this->addChild(pLabel, 1);



    // add "HelloWorld" splash screen"

    CCSprite* pSprite = CCSprite::create("HelloWorld.png");



    // position the sprite on the center of the screen

    pSprite->setPosition( ccp(size.width/2, size.height/2) );



    // add the sprite as a child to this layer

    this->addChild(pSprite, 0);

    

    // loading边框

    m_progressFrame = CCSprite::create("loading_fr.png");

    addChild(m_progressFrame,1);

    m_progressFrame->setPosition(ccp(240, 50));

    

    // loading的动作条

    m_progressBar = CCProgressTimer::create(CCSprite::create("loading_bar.png"));

    m_progressBar->setType(kCCProgressTimerTypeBar);

    addChild(m_progressBar);

    m_progressBar->setVisible(true);

    m_progressBar->setPosition(ccp(241, 51));

    // 进度动画运动方向，从左到右

    m_progressBar->setMidpoint(ccp(0, 0));

    // 宽高变化，这里是宽度变化

    m_progressBar->setBarChangeRate(ccp(1, 0));

    m_progressBar->setPercentage(0);

    

    // loading动画，没有逻辑处理，实际情况则注释掉

    CCProgressTo *to = CCProgressTo::create(10, 100);

    m_progressBar->runAction(to);

    

    // 实际的loading逻辑，可以在这里加入

//    scheduleUpdate();

    return true;

}



void HelloWorld::update(float dt)

{

    

    m_iLoadIdex++;

    

    if (m_iLoadIdex <= 50) {

        loadResource(m_iLoadIdex);

        m_progressBar->setPercentage(m_iLoadIdex * 100.0 / 50);

    }

    

    if (m_iLoadIdex >=50) {

        unscheduleUpdate();

    }

}



// 实际的loading逻辑，加载资源可以在这里添加。

// 这里只用了sleep来模拟

void HelloWorld::loadResource(int index)

{

    CCLog("loading ....");

    switch (index) {

        case 0:

            break;

        default:

            sleep(1.0);

            break;

    }

}





void HelloWorld::menuCloseCallback(CCObject* pSender)

{

    CCDirector::sharedDirector()->end();



#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)

    exit(0);

#endif

}

 

东西太简单，还需要上传demo源码么。要的留言