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://www.jb51.cc/article/p-xryqknmf-zw.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：

[cpp] view plain copy print ?

1. #include"HelloWorldScene.h"
2. #include"SimpleAudioEngine.h"
4. usingnamespacecocos2d;
5. usingnamespaceCocosDenshion;
7. CCScene*HelloWorld::scene()
8. {
9. //'scene'isanautoreleaseobject
10. CCScene*scene=CCScene::create();
11. //'layer'isanautoreleaseobject
12. HelloWorld*layer=HelloWorld::create();
13. //addlayerasachildtoscene
14. scene->addChild(layer);
15. //returnthescene
16. returnscene;
17. }
18. //on"init"youneedtoinitializeyourinstance
19. boolHelloWorld::init()
20. //////////////////////////////
21. //1.superinitfirst
22. if(!CCLayer::init())
23. returnfalse;
24. m_iLoadIdex=0;
25. /////////////////////////////
26. //2.addamenuitemwith"X"image,whichisclickedtoquittheprogram
27. //youmaymodifyit.
28. //adda"close"icontoexittheprogress.it'sanautoreleaseobject
29. CCMenuItemImage*pCloseItem=CCMenuItemImage::create(
30. "CloseNormal.png",
31. "CloseSelected.png",
32. this,153); list-style:decimal-leading-zero outside; color:inherit; line-height:20px; margin:0px!important; padding:0px 3px 0px 10px!important"> menu_selector(HelloWorld::menuCloseCallback));
33. pCloseItem->setPosition(ccp(CCDirector::sharedDirector()->getWinSize().width-20,20));
34. //createmenu,it'sanautoreleaseobject
35. CCMenu*pMenu=CCMenu::create(pCloseItem,NULL);
36. pMenu->setPosition(CCPointZero);
37. this->addChild(pMenu,1);
38. /////////////////////////////
39. //3.addyourcodesbelow...
40. //addalabelshows"HelloWorld"
41. //createandinitializealabel
42. CCLabelTTF*pLabel=CCLabelTTF::create("HelloWorld","Thonburi",34);
43. //askdirectorthewindowsize
44. CCSizesize=CCDirector::sharedDirector()->getWinSize();
45. //positionthelabelonthecenterofthescreen
46. pLabel->setPosition(ccp(size.width/2,size.height-20));
47. //addthelabelasachildtothislayer
48. this->addChild(pLabel,0); background-color:inherit">//add"HelloWorld"splashscreen"
49. CCSprite*pSprite=CCSprite::create("HelloWorld.png");
50. //positionthespriteonthecenterofthescreen
51. pSprite->setPosition(ccp(size.width/2,size.height/2));
52. //addthespriteasachildtothislayer
53. this->addChild(pSprite,0);
54. //loading边框
55. m_progressFrame=CCSprite::create("loading_fr.png");
56. addChild(m_progressFrame,1);
57. m_progressFrame->setPosition(ccp(240,50));
58. //loading的动作条
59. m_progressBar=CCProgressTimer::create(CCSprite::create("loading_bar.png"));
60. m_progressBar->setType(kCCProgressTimerTypeBar);
61. addChild(m_progressBar);
62. m_progressBar->setVisible(true);
63. m_progressBar->setPosition(ccp(241,51));
64. //进度动画运动方向，从左到右
65. m_progressBar->setMidpoint(ccp(0,0));
66. //宽高变化，这里是宽度变化
67. m_progressBar->setBarChangeRate(ccp(1,153); list-style:decimal-leading-zero outside; color:inherit; line-height:20px; margin:0px!important; padding:0px 3px 0px 10px!important"> m_progressBar->setPercentage(0);
68. //loading动画，没有逻辑处理，实际情况则注释掉
69. CCProgressTo*to=CCProgressTo::create(10,100);
70. m_progressBar->runAction(to);
71. //实际的loading逻辑，可以在这里加入
72. //scheduleUpdate();
73. returntrue;
74. voidHelloWorld::update(floatdt)
75. {
76. m_iLoadIdex++;
77. if(m_iLoadIdex<=50){
78. loadResource(m_iLoadIdex);
79. m_progressBar->setPercentage(m_iLoadIdex*100.0/50);
80. if(m_iLoadIdex>=50){
81. unscheduleUpdate();
82. }
83. //实际的loading逻辑，加载资源可以在这里添加。
84. //这里只用了sleep来模拟
85. voidHelloWorld::loadResource(intindex)
86. CCLog("loading....");
87. switch(index){
88. case0:
89. break;
90. default:
91. sleep(1.0);
92. break;
93. voidHelloWorld::menuCloseCallback(CCObject*pSender)
94. CCDirector::sharedDirector()->end();
95. #if(CC_TARGET_PLATFORM==CC_PLATFORM_IOS)
96. exit(0);
97. #endif
98. }

东西太简单，还需要上传demo源码么。要的留言