cocos2dのGLViewをViewController単位で生成・破棄できるようにするためのコード

AppDelegate.h

#import <UIKit/UIKit.h>
#import "cocos2d.h"

@class GameViewManager;

@interface AppController : NSObject <UIApplicationDelegate>
{
    UIWindow *window_;
}

//@property (nonatomic, retain) UIWindow *window;
@property (nonatomic, retain) UINavigationController *navController;
@property (nonatomic, retain) GameViewManager *viewManager;

@end

AppDelegate.m

#import "AppDelegate.h"
#import "MenuViewController.h"
#import "GameViewManager.h"

@implementation AppController

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // Create the main window
	window_ = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

	// Create a Navigation Controller with the Director
	self.navController = [[UINavigationController alloc] initWithRootViewController:[[MenuViewController alloc] init] ];
	self.navController.navigationBarHidden = YES;
	
	// set the Navigation Controller as the root view controller
//	[window_ addSubview:navController_.view];	// Generates flicker.
	[window_ setRootViewController:self.navController];
	
	// make main window visible
	[window_ makeKeyAndVisible];
    
    self.viewManager = [GameViewManager sharedManager];
    //self.viewManager.navController = self.navController;
	
	return YES;
}

// Supported orientations: Landscape. Customize it for your own needs
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
	return UIInterfaceOrientationIsPortrait(interfaceOrientation);
}


// getting a call, pause the game
-(void) applicationWillResignActive:(UIApplication *)application
{
	//if( [navController_ visibleViewController] == director_ )
		//[director_ pause];
}

// call got rejected
-(void) applicationDidBecomeActive:(UIApplication *)application
{
	//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];
    [self.navController release];
    [self.viewManager  release];
	[super dealloc];
}
@end

GameViewManager.h

#import <Foundation/Foundation.h>
#import "cocos2d.h"

@interface GameViewManager : NSObject <CCDirectorDelegate>

@property (nonatomic, retain) UIViewController *viewController;
@property (nonatomic, assign) UINavigationController *navController;
@property (readonly) CCDirectorIOS *director;

+ (GameViewManager*)sharedManager;

- (void)setUpDirector;
- (void)pop;

@end

GameViewManager.m

#import "GameViewManager.h"
#import "MenuViewController.h"
#import "AppDelegate.h"
#import "GameScene.h"

@implementation GameViewManager

static GameViewManager *_sharedInstance = nil;

+ (GameViewManager *)sharedManager
{
    if (!_sharedInstance) {
        _sharedInstance = [[self alloc] init];
    }
    return _sharedInstance;
}

- (id)init
{
    self = [super init];
    if (self) {
        NSLog(@"%@: %@", NSStringFromSelector(_cmd), self);
    }
    return self;
}

- (void)dealloc
{
    NSLog(@"%@: %@", NSStringFromSelector(_cmd), self);
    _sharedInstance = nil;
    [super dealloc];
}

- (void)setUpDirector
{
    // Create an CCGLView with a RGB565 color buffer, and a depth buffer of 0-bits
    CCGLView *glView = [CCGLView viewWithFrame:[[UIScreen mainScreen] bounds]
                                   pixelFormat:kEAGLColorFormatRGB565    //kEAGLColorFormatRGBA8
                                   depthFormat:0	//GL_DEPTH_COMPONENT24_OES
                            preserveBackbuffer:NO
                                    sharegroup:nil
                                 multiSampling:NO
                               numberOfSamples:0];
    
    
    
    _director = (CCDirectorIOS*) [CCDirector sharedDirector];
    
    _director.wantsFullScreenLayout = YES;
    
    // Display FSP and SPF
    [_director setDisplayStats:YES];
    
    // set FPS at 60
    [_director setAnimationInterval:1.0/60];
    
    // attach the openglView to the director
    [_director setView:glView];
    
    // for rotation and other messages
    [_director setDelegate:self];
    
    // 2D projection
    [_director setProjection:kCCDirectorProjection2D];
    //	[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");
    
    // Default texture format for PNG/BMP/TIFF/JPEG/GIF images
    // It can be RGBA8888, RGBA4444, RGB5_A1, RGB565
    // You can change anytime.
    [CCTexture2D setDefaultAlphaPixelFormat:kCCTexture2DPixelFormat_RGBA8888];
    
    // 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];
    
    // and add the scene to the stack. The director will run it when it automatically when the view is displayed.
    [_director pushScene: [GameScene scene]];
}

- (void)pop
{
    
    AppController *app = [[UIApplication sharedApplication] delegate];
    [app.navController popViewControllerAnimated:YES];
    [[[CCDirector sharedDirector] view] removeFromSuperview];
    [[CCDirector sharedDirector] end];
    
    NSLog(@"nav: %@", app.navController);
}


@end