Integrating with existing UIKit Application fails - How can I do it?

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Integrating with existing UIKit Application fails - How can I do it?

(8 posts) (4 voices)

Started 1 year ago by mokargas
Latest reply from onedayitwillmake

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mokargas
Member

Hey all.

I have an existing UIKit based application, which is basically a few UIViews. One of these UIView's needs to be an animated cocos2d layer.

I've just added the following code to my app delegate in an attempt to get anything to appear - it's basically what lies within the standard new templates app delegate for a new cocos2d project.

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
	CC_DIRECTOR_INIT();

	application.statusBarStyle = UIStatusBarStyleBlackOpaque;
	application.idleTimerDisabled = YES;

	// Init the window
	window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

	// Obtain the shared director in order to...
	CCDirector *director = [CCDirector sharedDirector];

	[director setDeviceOrientation:kCCDeviceOrientationPortrait];

	// set FPS at 60
	[director setAnimationInterval:1.0/60];

	// Display FPS: yes
	[director setDisplayFPS:YES];

	// Create an EAGLView with a RGB8 color buffer, and a depth buffer of 24-bits
	EAGLView *glView = [director openGLView];

	// attach the view to the director
	//[director setOpenGLView:glView];

	// make the OpenGLView a child of the main window
	[window addSubview:glView];

//Add the UIViewController's view
[window addSubView:viewController.view];

	// make main window visible
	[window makeKeyAndVisible];	

	// 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];	

	// run
	[[CCDirector sharedDirector] runWithScene: [HelloWorld scene]];

	return YES;
}

Problem is, this crashes immediately with no console error message or log on either the simulator or device. For brevity's sake, I've replaced my scene with one from the default cocos2d new template called HelloWorld. I don't have a clue why it would crash. If I remove the cocos setup from the delegate, my app runs as norm.

I only want my scene to run on one UIView in my app, any other time should just be a bunch of standard UIKit items.(think a navcontroller with multiple views). Thanks in advance

Posted 1 year ago #

Benihana
Member

Where do you initialize your scene? Did you try breakpoints to see which line is crashing it?

Posted 1 year ago #
mokargas
Member
I added some breakpoints in and I get a few more error messages:

The program produces the errors:
```
Program received signal:  “EXC_ARITHMETIC”.
Data Formatters temporarily unavailable, will re-try after a 'continue'. (Not safe to call dlopen at this time.)
```
This occurs at the following line 75 of CCLabelAtlas.m:

float row = (a % itemsPerRow) * texStepX;

Googling this suggested a problem with fps_images, but I've actually disabled displaying the FPS now
Posted 1 year ago #
mokargas
Member

Belay that, it seems even turning off the fps display, still requires that image. It now loads the scene, though it's over the top of all other program elements..

I'm still unsure on how to attach it to a UIView. Do I have to attach the glview inside the appDelegate? Can I subclass a UIView and add it in there?

Posted 1 year ago #
liquidfire
Member

Just so you know, float row = (a % itemsPerRow) * texStepX; is crashing because in your case itemsPerRow is 0, causing a divide by zero error.

Also, you are using the CC_DIRECTOR_INIT() macro, which initializes the window and then you are re-initializing it: window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

That may have something to do with it.

Posted 1 year ago #

mokargas
Member

I have got it to work! I eventually had to delete the window reference from my MainWindow.xib file due to a whitescreen error on my test iPod. I also managed to get it displaying in a UIView nicely! Thanks for your excellent help Benihana and liquidfire.

My only remaining issue now is to do with loading sprites. I have one spritesheet with CCSprite defined which loops. What I need to do is add touch capability, so when I tap that repeating sprite, it loads and runs another sprite from another spritesheet.

This is how I'm loading playing that single sprite in my HelloWorld CCScene file

-(void) createFallSprite{
	fallSpriteSheet = [CCSpriteSheet spriteSheetWithFile:@"fall_atlas.png"];
	[self addChild:fallSpriteSheet];

	// create the sprite
	fallSprite = [CCSprite spriteWithTexture:fallSpriteSheet.texture rect:CGRectMake(0, 0, 320, 420)];
	[fallSpriteSheet addChild:fallSprite];

	float originalScale = fallSprite.scale;
	fallSprite.scale = originalScale * 2;

	// position the sprite slightly off center in the screen
	CGSize s = [[CCDirector sharedDirector] winSize];
	fallSprite.position = ccp(s.width/2,s.height/2+30);

	// create the animation
	fallAnimation = [CCAnimation animationWithName:@"fall" delay:0.1f];

	int frameCount = 0;
	for (int y = 0; y != 4; y++) {
		for (int x = 0; x != 6; x++) {
			// create an animation frame
			CCSpriteFrame *frame = [CCSpriteFrame frameWithTexture:fallSpriteSheet.texture rect:CGRectMake(x*160, y*210, 160, 210) offset:ccp(0,0)];
			[fallAnimation addFrame:frame];

			frameCount++;

			// stop looping after we've added 24 frames
			if (frameCount == 24)
				break;
		}
	}
}
-(void) runFallSprite{
	[self createFallSprite];

	// create the action
	id fallAction = [CCAnimate actionWithAnimation:fallAnimation restoreOriginalFrame:YES];
	id repeat = [CCRepeatForever actionWithAction:fallAction];
	[fallSprite runAction:repeat];

}
-(id)init {
	self = [super init];

	if (self) {
		[self runFallSprite];

	}

	return self;
}

So if you can imagine an item falling, then tapping on that animation loads the next animation, say DanceSprite. I don't know if I have to subclass CCSprite as is done in the Touches sample provided as I need touches in a more general sense I guess.

Ideally I want to tap the first animating sprite, it loads and plays the next CCSprite animation from another spritesheet once, then returns to the repeating one.

Is this too complicated?

Posted 1 year ago #

mokargas
Member

I converted my HelloWorld from a CCScene subclass to a CCLayer subclass, this allows touches.

The only way I've found to do the swap is to use [[CCDirector sharedDirector] replaceScene] and have a CCLayer subclass for each animation I wish to swap in on touch. Is this the correct approach?

Posted 1 year ago #
onedayitwillmake
Member

This just happened to me for a different reason.

Im posting what I did to get it to work here, in case it helps anyone.

Be sure to add fps_images.png to your resources, then on top of that - double check that its in your Target's "Copy Bundle Resources"

-
Mario Gonzalez
http://ribbonpaint.com - A painting application for OSX

Posted 1 year ago #

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