翻譯:Iven,校對:jesse,子龍山人
衆所周知,cocos2d-x是一款基於c++/Opengl 的強勁跨平臺引擎,通過一次編碼,你可以同時用於android,iOS等大多數主流平臺。這使得多平臺的開發更加方便。
雖然比起cocos2d-x的有名的兄弟-cocos2d-iphone,-x還很年輕並缺少教程,但是由於團隊的不懈努力,使得-x逐漸完善並不斷被市場認可。
如果你想把UIKit折騰進Cocos2d-x,Github有一個開源工程,推薦給大家學習一下:open source project on GitHub .
相反,如果你想把coocs2d-x折騰進UIKit(UIVIewController),以下是詳細步驟:
0. 廢話少說,這裏是本文的示例代碼:Sample project Cocos2dxOnUikit.zip.
1.我們有一個UIKit工程,同時希望在某一個 view controller中顯示Cocos2d-x (OpenGL view)。
2. 下載Cocos2d-x代碼(哥說了句廢話,你知道該去哪下載的)
3. 解壓(廢話again)
4. 創建工程,如果你不會,推薦看看泰然以往的教程。
5. 移除cocos2dx/platform/目錄下的CCImage.cpp 和 CCThread.cpp
6. 打開xcode的項目配置,點擊build Settings,在“Library Search Paths” 參數添加$(SRCROOT)/cocos2dx/platform/third_party/ios/libraries/(爲了在cocos2dx中使用curl庫)
7. 接着,在“Headers Search Paths”參數添加
$(SRCROOT)/cocos2dx and $(SDKROOT)/usr/include/libxml2 (爲了使用libxml 庫)
8. 在 “Other C++ Flags” 參數添加-DCC_UNDER_IOS
9.從HelloWorld示例工程中拷貝AppDelegate.cpp 和 AppDelegate.h並添加到我們現在這個工程中。
像上面截圖那樣註釋掉applicationDidFinishLaunching()。這些代碼我們稍後會轉移到ViewController 中去。
譯者注:確保AppDelegate 在你的UIKit工程中沒有多次調用,不然你的項目會有兩個AppDelegate.h頭文件。
10. 修改你YourAppDelegate.m的擴展名爲:YourAppDelegate.mm(.mm將其中代碼變成Objective C++,這樣使其被編譯成用c++方式調用)
11. 在你的YourAppDelegate.mm添加:
#import "AppDelegate.h" static AppDelegate s_sharedApplication;
12. 繼續把YourViewController.m擴展名改爲YourViewController.mm.
13. 修改一個文件:
在cocos2d-x的CCdirectorCaller.mm文件中
將代碼
+(void) destroy { [[s_sharedDirectorCaller release]; }
修改爲:
+(void) destroy { [s_sharedDirectorCaller destroy]; [s_sharedDirectorCaller release]; s_sharedDirectorCaller=nil; } -(void) destroy { [displayLink invalidate]; displayLink=nil; }
說明:在cocos2d-x中使用UIKit view,我們會常常使用到director 的create和end。當我們調用director->end()方法時,CCDirectorCaller 並沒有真正釋放(顯示連接displayLink 依然存在),以上方法可以修復這個問題。這就相當於我們爲了釋放CCDirectorCaller,我們不得不先讓顯示連接(displayLink )無效。
14.在cocos2dx/support/zip_support/ioapi.cpp中,修改fopen64接口名稱 爲fopen,fseeko64 修改爲fseeko,ftello64 修改爲ftello。
15. 添加以下庫:
OpenGLES.framework
libxml2.dylib
libz.1.2.5.dylib
QuartzCore.framework
16. 現在,只需最後一步,Cocos2d-x 的OpenGL view就整合進controller’s view了(類似modal view controller):
-(void)loadOpenglScene:(CGRect)rect { cocos2d::CCApplication::sharedApplication().run(); EAGLView *glView = [EAGLView viewWithFrame: rect pixelFormat: kEAGLColorFormatRGBA8 depthFormat: GL_DEPTH_COMPONENT16_OES preserveBackbuffer: NO sharegroup:nil multiSampling:NO numberOfSamples:0]; [self.view insertSubview:glView atIndex:0]; cocos2d::CCDirector *pDirector = cocos2d::CCDirector::sharedDirector(); pDirector->setOpenGLView(&cocos2d::CCEGLView::sharedOpenGLView()); // enable High Resource Mode(2x, such as iphone4) and maintains low resource on other devices. // pDirector->enableRetinaDisplay(true); // turn on display FPS //pDirector->setDisplayFPS(true); // pDirector->setDeviceOrientation(kCCDeviceOrientationLandscapeLeft); // set FPS. the default value is 1.0/60 if you don't call this pDirector->setAnimationInterval(1.0 / 60); // create a scene. it's an autorelease object cocos2d::CCScene *pScene_ = cocos2d::MyGraphicsEngine::scene(myparams); // run pDirector->runWithScene(pScene_); // Retained because if not, we get an BAD ACCESS exception when we try to release the Cocos2d-x environment later [[EAGLView sharedEGLView] retain]; } - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view. // In this example we use a navigation bar and a "close" button, the Cocos2d-x view will be added below the navigation bar UINavigationBar *bar=[[[UINavigationBar alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 49)] autorelease]; [self.view insertSubview:bar atIndex:0]; UIBarButtonItem *closeButton=[[[UIBarButtonItem alloc] initWithTitle:@"Close" style:UIBarButtonItemStyleDone target:self action:@selector(close)] autorelease]; UINavigationItem *item = [[UINavigationItem alloc] initWithTitle:@""]; item.rightBarButtonItem = closeButton; item.hidesBackButton = YES; [bar pushNavigationItem:item animated:NO]; [item release]; [self loadOpenglScene:CGRectMake(0, bar.frame.size.height, self.view.frame.size.width, self.view.frame.size.height-bar.frame.size.height)]; } -(void)close { //TODO } -(void)viewDidDisappear:(BOOL)animated { //Release Cocos2d-x stack cocos2d::CCDirector *pDirector = cocos2d::CCDirector::sharedDirector(); //CCDirector::end() is asynchronous. That's why you can't release [EAGLView sharedEGLView] here after (you'll get a BAD ACCESS exception), and that's why we put it un viewDidUnload. pDirector->end(); [self checkWin]; } - (void)viewDidUnload { [[EAGLView sharedEGLView] release]; [super viewDidUnload]; // Release any retained subviews of the main view. }
本文轉載自:http://article.ityran.com/archives/2028#more-2028