这三年多的时间,我从一个不知道hello_world是什么的小毛小子,到现在开始一点点的进阶,感触颇多.不过幸运的是,我没有把自己的人生旅途交给老天,我更多的交给了我自己.我无时无刻的对自己说 ,加油~ 也是对看这篇博文的你,加油.因为你已经度过了  c->oc->ios的过渡.相信吧,功夫不负有心人. ~来,搞起来,我那和我亲密无间的 helloWorld!   1.代理文件的解读 1).h文件代码如下 ~~~ // // AppDelegate.h // HelloWorld2D // // Created by lichan on 13-12-7. // Copyright com.lichan 2013年. All rights reserved. // #import <UIKit/UIKit.h> #import "cocos2d.h" // Added only for iOS 6 support @interface MyNavigationController : UINavigationController <CCDirectorDelegate> @end @interface AppController : NSObject <UIApplicationDelegate> { UIWindow *window_; MyNavigationController *navController_; CCDirectorIOS *director_; // weak ref } @property (nonatomic, retain) UIWindow *window; @property (readonly) MyNavigationController *navController; @property (readonly) CCDirectorIOS *director; @end ~~~ 和IOS最大的区别在于 协议的不同和 属性的增加. UINavigationController <CCDirectorDelegate>  继承与导航控制器,并遵守 导演代理. 导航控制器我就不多说了,导演代理是什么呢?相比较而言,就相当于 我们的NSOBject类.导演代理讲会安排我们里面的所有图层,动作等. CCDirectorIOS*director_;我们定义了一个导演的实体对象,便于调用. 2).m文件有何不一样? ~~~ // // AppDelegate.m // HelloWorld2D // // Created by lichan on 13-12-7. // Copyright com.lichan 2013年. All rights reserved. // #import "cocos2d.h" #import "AppDelegate.h" #import "IntroLayer.h" @implementation MyNavigationController // The available orientations should be defined in the Info.plist file. // And in iOS 6+ only, you can override it in the Root View controller in the "supportedInterfaceOrientations" method. // Only valid for iOS 6+. NOT VALID for iOS 4 / 5. -(NSUInteger)supportedInterfaceOrientations { //关于机器类型的选择. // iPhone only if( [[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone ) return UIInterfaceOrientationMaskLandscape; // iPad only return UIInterfaceOrientationMaskLandscape; } // Supported orientations. Customize it for your own needs // Only valid on iOS 4 / 5. NOT VALID for iOS 6. - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { // iPhone only //是否设置旋转 if( [[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone ) return UIInterfaceOrientationIsLandscape(interfaceOrientation); // iPad only // iPhone only return UIInterfaceOrientationIsLandscape(interfaceOrientation); } // This is needed for iOS4 and iOS5 in order to ensure // that the 1st scene has the correct dimensions // This is not needed on iOS6 and could be added to the application:didFinish... -(void) directorDidReshapeProjection:(CCDirector*)director //关于 导演类的加载 { if(director.runningScene == nil) { // Add the first scene to the stack. The director will draw it immediately into the framebuffer. (Animation is started automatically when the view is displayed.) // and add the scene to the stack. The director will run it when it automatically when the view is displayed. [director runWithScene: [IntroLayer scene]]; } } @end @implementation AppController @synthesize window=window_, navController=navController_, director=director_;//get方法的别名 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Create the main window//老规矩! 这都是启动加载的东西 window_ = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; // CCGLView creation // viewWithFrame: size of the OpenGL view. For full screen use [_window bounds] // - Possible values: any CGRect // pixelFormat: Format of the render buffer. Use RGBA8 for better color precision (eg: gradients). But it takes more memory and it is slower // - Possible values: kEAGLColorFormatRGBA8, kEAGLColorFormatRGB565 // depthFormat: Use stencil if you plan to use CCClippingNode. Use Depth if you plan to use 3D effects, like CCCamera or CCNode#vertexZ // - Possible values: 0, GL_DEPTH_COMPONENT24_OES, GL_DEPTH24_STENCIL8_OES // sharegroup: OpenGL sharegroup. Useful if you want to share the same OpenGL context between different threads // - Possible values: nil, or any valid EAGLSharegroup group // multiSampling: Whether or not to enable multisampling // - Possible values: YES, NO // numberOfSamples: Only valid if multisampling is enabled // - Possible values: 0 to glGetIntegerv(GL_MAX_SAMPLES_APPLE) CCGLView *glView = [CCGLView viewWithFrame:[window_ bounds] pixelFormat:kEAGLColorFormatRGB565 depthFormat:0 preserveBackbuffer:NO sharegroup:nil multiSampling:NO numberOfSamples:0]; //建立一个视图,可以认为是根视图,最后加载到 window 的视图上面 director_ = (CCDirectorIOS*) [CCDirector sharedDirector]; //得到导演类的实体 director_.wantsFullScreenLayout = YES; 是否设置全屏 // Display FSP and SPF [director_ setDisplayStats:YES]; // //是否显示 tsp /spf // set FPS at 60 [director_ setAnimationInterval:1.0/60]; //游戏的刷新频率 // attach the openglView to the director [director_ setView:glView]; //把根视图给 导演实体,让他来处理 // 2D projection [director_ setProjection:kCCDirectorProjection2D]; //设置为2d映像 // [director setProjection:kCCDirectorProjection3D]; // Enables High Res mode (Retina Display) on iPhone 4 and maintains low res on all other devices if( ! [director_ enableRetinaDisplay:YES] ) CCLOG(@"Retina Display Not supported");//看看我们的机器是否支持最新的 Retina 分辨率 // Default texture format for PNG/BMP/TIFF/JPEG/GIF images // It can be RGBA8888, RGBA4444, RGB5_A1, RGB565 // You can change this setting at any time. [CCTexture2D setDefaultAlphaPixelFormat:kCCTexture2DPixelFormat_RGBA8888];//支持的texture类型,加载图片用的 // If the 1st suffix is not found and if fallback is enabled then fallback suffixes are going to searched. If none is found, it will try with the name without suffix. // On iPad HD : "-ipadhd", "-ipad", "-hd" // On iPad : "-ipad", "-hd" // On iPhone HD: "-hd" CCFileUtils *sharedFileUtils = [CCFileUtils sharedFileUtils]; [sharedFileUtils setEnableFallbackSuffixes:NO]; // Default: NO. No fallback suffixes are going to be used [sharedFileUtils setiPhoneRetinaDisplaySuffix:@"-hd"]; // Default on iPhone RetinaDisplay is "-hd" [sharedFileUtils setiPadSuffix:@"-ipad"]; // Default on iPad is "ipad" [sharedFileUtils setiPadRetinaDisplaySuffix:@"-ipadhd"]; // Default on iPad RetinaDisplay is "-ipadhd" // Assume that PVR images have premultiplied alpha [CCTexture2D PVRImagesHavePremultipliedAlpha:YES]; // Create a Navigation Controller with the Director navController_ = [[MyNavigationController alloc] initWithRootViewController:director_];把导演实体作为到航视图的跟控制类 navController_.navigationBarHidden = YES; // for rotation and other messages [director_ setDelegate:navController_]; // set the Navigation Controller as the root view controller [window_ setRootViewController:navController_]; // make main window visible [window_ makeKeyAndVisible]; return YES; } // getting a call, pause the game -(void) applicationWillResignActive:(UIApplication *)application//这四个就是代理的四种方法,出现,消失,进后台,出后台,中断 { if( [navController_ visibleViewController] == director_ ) [director_ pause]; } // call got rejected -(void) applicationDidBecomeActive:(UIApplication *)application { [[CCDirector sharedDirector] setNextDeltaTimeZero:YES]; if( [navController_ visibleViewController] == director_ ) [director_ resume]; } -(void) applicationDidEnterBackground:(UIApplication*)application { if( [navController_ visibleViewController] == director_ ) [director_ stopAnimation]; } -(void) applicationWillEnterForeground:(UIApplication*)application { if( [navController_ visibleViewController] == director_ ) [director_ startAnimation]; } // application will be killed - (void)applicationWillTerminate:(UIApplication *)application { CC_DIRECTOR_END(); } // purge memory - (void)applicationDidReceiveMemoryWarning:(UIApplication *)application { [[CCDirector sharedDirector] purgeCachedData]; } // next delta time will be zero -(void) applicationSignificantTimeChange:(UIApplication *)application { [[CCDirector sharedDirector] setNextDeltaTimeZero:YES]; } - (void) dealloc { [window_ release]; [navController_ release]; [super dealloc]; } @end ~~~ 2.HelloWorldlayer文件的解读 1).h文件 ~~~ // // HelloWorldLayer.h // HelloWorld2D // // Created by lichan on 13-12-7. // Copyright com.lichan 2013年. All rights reserved. // #import <GameKit/GameKit.h> // When you import this file, you import all the cocos2d classes #import "cocos2d.h" // HelloWorldLayer @interface HelloWorldLayer : CCLayer <GKAchievementViewControllerDelegate, GKLeaderboardViewControllerDelegate> { } // returns a CCScene that contains the HelloWorldLayer as the only child +(CCScene *) scene; //这个类方法是干什么的呢?因为导演类只可以加载CCScene对象,而IntroLayer 继承与Layer,这里是转化为导演可以接受的对象. @end ~~~ 2)我们再去看看.m文件吧 ~~~ // // HelloWorldLayer.m // HelloWorld2D // // Created by lichan on 13-12-7. // Copyright com.lichan 2013年. All rights reserved. // // Import the interfaces #import "HelloWorldLayer.h" // Needed to obtain the Navigation Controller #import "AppDelegate.h" #pragma mark - HelloWorldLayer // HelloWorldLayer implementation @implementation HelloWorldLayer // Helper class method that creates a Scene with the HelloWorldLayer as the only child. +(CCScene *) scene { // 'scene' is an autorelease object. CCScene *scene = [CCScene node]; // 'layer' is an autorelease object. HelloWorldLayer *layer = [HelloWorldLayer node]; // add layer as a child to scene [scene addChild: layer]; // return the scene return scene; } // on "init" you need to initialize your instance -(id) init //这个方法非常重要,基本我们的视图的很多初始化方法都是从这入手的 { // always call "super" init // Apple recommends to re-assign "self" with the "super's" return value if( (self=[super init]) ) { // create and initialize a Label CCLabelTTF *label = [CCLabelTTF labelWithString:@"Hello World" fontName:@"Marker Felt" fontSize:64]; // ask director for the window size CGSize size = [[CCDirector sharedDirector] winSize]; //得到我们的导演类的尺寸. // position the label on the center of the screen label.position = ccp( size.width /2 , size.height/2 ); //设置helloWorld 在view中的位置.ccp 一个新的方法哦 // add the label as a child to this Layer [self addChild: label]; //增加到视图中去 //上述代码无非就是增加一个 HelloWorld的 label.但是这个字体可是 @"Marker Felt".字体大小64的.   ~~~ ~~~ ~~~ ~~~ //其实下面的代码 是 设置 一个飞机小精灵.然后设置位置 并设置他飞行的路径.(到某个位置.) CCSprite *plane = [CCSprite spriteWithFile:@"plane.png"]; plane.position = ccp(size.width/2, size.height*0.7); [self addChild:plane]; id flyAction = [CCMoveTo actionWithDuration:4 position:ccp(size.width+200, size.height)];//设置的动作的方法. 其中还有CCMoveBy ,这两种action都是非常常见的 [plane runAction:flyAction];//让飞机飞起来 // // Leaderboards and Achievements // // Default font size will be 28 points. [CCMenuItemFont setFontSize:28]; // to avoid a retain-cycle with the menuitem and blocks __block id copy_self = self; // Achievement Menu Item using blocks CCMenuItem *itemAchievement = [CCMenuItemFont itemWithString:@"Achievements" block:^(id sender) { GKAchievementViewController *achivementViewController = [[GKAchievementViewController alloc] init]; achivementViewController.achievementDelegate = copy_self; AppController *app = (AppController*) [[UIApplication sharedApplication] delegate]; [[app navController] presentModalViewController:achivementViewController animated:YES]; [achivementViewController release]; }]; // Leaderboard Menu Item using blocks CCMenuItem *itemLeaderboard = [CCMenuItemFont itemWithString:@"Leaderboard" block:^(id sender) { GKLeaderboardViewController *leaderboardViewController = [[GKLeaderboardViewController alloc] init]; leaderboardViewController.leaderboardDelegate = copy_self; AppController *app = (AppController*) [[UIApplication sharedApplication] delegate]; [[app navController] presentModalViewController:leaderboardViewController animated:YES]; [leaderboardViewController release]; }]; CCMenu *menu = [CCMenu menuWithItems:itemAchievement, itemLeaderboard, nil]; [menu alignItemsHorizontallyWithPadding:20]; [menu setPosition:ccp( size.width/2, size.height/2 - 50)]; // Add the menu to the layer [self addChild:menu]; } return self; } // on "dealloc" you need to release all your retained objects - (void) dealloc { // in case you have something to dealloc, do it in this method // in this particular example nothing needs to be released. // cocos2d will automatically release all the children (Label) // don't forget to call "super dealloc" [super dealloc]; } #pragma mark GameKit delegate -(void) achievementViewControllerDidFinish:(GKAchievementViewController *)viewController { AppController *app = (AppController*) [[UIApplication sharedApplication] delegate]; [[app navController] dismissModalViewControllerAnimated:YES]; } -(void) leaderboardViewControllerDidFinish:(GKLeaderboardViewController *)viewController { AppController *app = (AppController*) [[UIApplication sharedApplication] delegate]; [[app navController] dismissModalViewControllerAnimated:YES]; } @end ~~~