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：/article/1353893.html

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