从 Cocos2d 场景推送 ViewController

Posted 2023-03-11

【中文标题】从 Cocos2d 场景推送 ViewController

【英文标题】：Push a ViewController from a Cocos2d scene

【发布时间】：2014-05-13 11:04:26

【问题描述】：

我在 Storyboard 中加载 cocos2d 游戏。我实现了一个加载 cocos2d 场景（IntroLayer）的 CocosViewController 和启动游戏的 IntroLayer。当游戏中的计时器（倒计时）为零时，我想回到 CocosViewController 或打开一个新的视图控制器。

我尝试在倒计时归零时调用[[CCDirector sharedDirector] popScene]; 并使用CocosViewController *cocos = [[CocosViewController alloc] init]; [cocos.navigationController dismissViewControllerAnimated:YES completion:nil]; 在 onExit 方法中，但当倒计时归零时应用程序崩溃，有什么建议吗？

我的 CocosViewController 设置 cocos2d

-(void)setupCocos2d 
   CCDirector *director = [CCDirector sharedDirector];
   //[[[self navigationController] navigationBar] setHidden:YES];


    if([director isViewLoaded] == NO)
    
        // Create the OpenGL view that Cocos2D will render to.
        CCGLView *glView = [CCGLView viewWithFrame:self.view.bounds
                                       pixelFormat:kEAGLColorFormatRGB565
                                       depthFormat:0
                                preserveBackbuffer:NO
                                        sharegroup:nil
                                     multiSampling:NO
                                   numberOfSamples:0];

        // Assign the view to the director.
        director.view = glView;


        // Initialize other director settings.
        [director setAnimationInterval:1.0f/60.0f];
        [director enableRetinaDisplay:YES];
    

// Set the view controller as the director's delegate, so we can respond to certain events.
director.delegate = self;

// Add the director as a child view controller of this view controller.
[self addChildViewController:director];


// Add the director's OpenGL view as a subview so we can see it.
[self.view addSubview:director.view];
[self.view sendSubviewToBack:director.view];

// Finish up our view controller containment responsibilities.
[director didMoveToParentViewController:self];

// Run whatever scene we'd like to run here.
NSArray *parameters = [[NSArray alloc] initWithObjects:@"3", @"sound", @"countdown", nil];
if(director.runningScene)
    [director replaceScene:[IntroLayer scene];
else
    [director pushScene:[IntroLayer scene];



- (void)viewDidLoad

    [super viewDidLoad];
    NSLog(@"cocos2d controller viewdidload");
    [self setupCocos2d];


-(void)viewDidUnload 
    NSLog(@"did unload");
    [[CCDirector sharedDirector] setDelegate:nil];
    [[CCDirector sharedDirector] end];

IntroLayer 为游戏创建场景。这是我的 onExit 方法：

 -(void) onExit
        NSLog(@"Introscene exit");
        [super onExit];
    

这就是游戏。我想在游戏结束时加载一个视图控制器。

-(void)update:(ccTime)dt
    if (myTime > 0) 
        myTime -= (float)dt;
        [timeLabel setString:[NSString stringWithFormat:@"%.2f", myTime]];
     else 
        myTime = 0;
        [timeLabel setString:[NSString stringWithFormat:@"0.00"]];
        [[CCDirector sharedDirector] popScene];
    

    if (clicks < currentClicks) 
        clicks = currentClicks;
        //[clicksLabel setString:[NSString stringWithFormat:@"%i", clicks]];
    


-(void) onExit

    [super onExit];

    [[CCDirector sharedDirector] stopAnimation];
     CocosViewController *cocos = [[CocosViewController alloc] init];
    [cocos.navigationController dismissViewControllerAnimated:YES completion:nil];

    //  [cocos.navigationController popViewControllerAnimated:YES];

    //AppDelegate *app = (AppDelegate *)[[UIApplication sharedApplication] delegate];
    //[app.navController popViewControllerAnimated:YES];
    //dismissModalViewControllerAnimated:YES

    NSLog(@"game exit");

【参考方案1】：

For pop IntroLayer To ViewConrtroller 如下代码

  [[[CCDirector sharedDirector] navigationController] popViewControllerAnimated:YES];