Cocos2d restart scene is blank but showing fps

Question

I have a table view that lists the game maps I have. When I click on one, another storyboard loads containing a cocos2d scene.

The first time I load a scene, everything loads perfectly. However, the second time I try to load the scene (back from the navigation controller and clicking on the same map or another one), I get a blank screen showing the fps but nothing else.

here's my code in mapViewController (that contains the cocos2d)

    - (void)setupCocos3D { //called from viewDidLoad
    [[CCDirector sharedDirector] setOpenGLView:openGLView];  


    ((ViewInterface*)[ViewInterface sharedViewInterface]).currentScene = [testScene scene];


    // Create the customized CC3Layer that supports 3D rendering.
    CC3Layer* cc3Layer = [HelloWorldLayer node];

    // Create the customized 3D scene and attach it to the layer.
    // Could also just create this inside the customer layer.


    cc3Layer.cc3Scene =  ((ViewInterface*)[ViewInterface sharedViewInterface]).currentScene;

    // Assign to a generic variable so we can uncomment options below to play with the capabilities
    CC3ControllableLayer* mainLayer = cc3Layer;

    mainLayer.contentSize = CGSizeMake(2048, 1320);

    [CCDirector sharedDirector].animationInterval = (1.0f / kAnimationFrameRate);
    [CCDirector sharedDirector].displayStats = YES;
    [[CCDirector sharedDirector] enableRetinaDisplay: YES];

    ((ViewInterface*)[ViewInterface sharedViewInterface]).mainLayer = mainLayer;

    [[CCDirector sharedDirector] runWithScene:((ViewInterface*)[ViewInterface sharedViewInterface]).mainLayer];
}

- (void)viewWillDisappear:(BOOL)animated
{

    [super viewWillDisappear:animated];
    [[CCDirector sharedDirector] end];


}

It is really strange that I can see the fps therefore it seems that the only problem is either with the scene or the layer.

dont set the glview again, don't call director end, ie init director once and only do start/stopanimation — CodeSmile, Apr 07 '13 at 08:23
@LearnCocos2D When I do that, the view is simply blank, without the fps showing. I also made sure that the code in setupCocos3D is called only once. — Etienne Noël, Apr 07 '13 at 12:47
@LearnCocos2D Well, the first time the scene runs perfectly fine, not the second... here's my new code: http://pastebin.com/TAXajq7g — Etienne Noël, Apr 07 '13 at 19:22
also commenting the line :replaceScene in the else doesn't help... — Etienne Noël, Apr 07 '13 at 19:24

score 0 · Answer 1 · answered Apr 15 '13 at 17:59

0

Is the scene being retained? Could it be getting released and not being re-created?

answered Apr 15 '13 at 17:59

Mike C.

601
3
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if you're not re-creating the scene, make sure you keep a strong reference to it. – Mike C. Apr 16 '13 at 00:31
unfortunately, that does not solve the problem... thanks for your time – Etienne Noël Apr 16 '13 at 04:46

Cocos2d restart scene is blank but showing fps

1 Answers1