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    <p>I have a cocos2d based iphone app with a problem. When the user pauses the game and then hits the resume button, some CCSprites will disappear from the screen. This behavior is random, no pattern followed. I just know that this only happens when the user resumes the game.</p> <p>Here is the code, what am I doing wrong? I first thought it might be a memory management problem, but I never get any EXC_BAD_ACCESS when the user hits resume... So the sprites probably still exist.</p> <p>The sprites are a property within an object I'll call "myobject".</p> <p>In myObject.h I have:</p> <pre><code>@interface myObject : CCNode{ CCSprite *_sprite1,*_sprite2; // some other code } @property (nonatomic,retain) CCSprite *sprite1,*sprite2; </code></pre> <p>And in myObject.m file:</p> <pre><code>@synthesize sprite1=_sprite1; @synthesize sprite2=_sprite2; +(id)create:(CCLayer*)scene{ myobject.sprite1 = [CCSprite spriteWithFile:spriteFile]; [scene addChild:myobject.sprite1]; // same for sprite2 } -(void) move:(ccTime)dt{ //SOMECODE self.sprite1.position=ccp(self.x,self.y); // same for sprite2 } </code></pre> <p>then they get moved around with a function called on the myobject.</p> <p>In the main scene, here is how these objects are created and moved around:</p> <pre><code>myObject *myObject; NSMutableArray *_myObjects; @implementation HelloWorld +(id) scene { CCScene *scene = [CCScene node]; HelloWorld *layer = [HelloWorld node]; [scene addChild:layer z:0 tag:33]; return scene; } -(id) init { if( (self=[super init] )) { _myObjects = [[NSMutableArray alloc] init]; // some other code } } -(void) addObject(){ myObject=[myObject create:self]; [_fallingObjects addObject:fallingObject]; } -(void) nextFrame:(ccTime) dt{ for(myObject *theObject in _myObjects){ [theObject move:dt]; } } // And here is the function that does the pause/unpause, here it is: - (void) pauseGame{ if(pauseStatus==0){ [[CCDirector sharedDirector] pause]; pauseStatus=1; // some code to display menu etc... such as: [self addChild:pauseMenu z:10]; } else{ [self removeChild:pauseMenu cleanup:YES]; [self removeChild:scoreLabel cleanup:YES]; [self removeChild:highscoreLabel cleanup:YES]; [self removeChild:titleLabel cleanup:YES]; [self removeChild:pauseLayer cleanup:YES]; [[CCDirector sharedDirector] resume]; pauseStatus=0; } } </code></pre> <p>==EDIT===</p> <p>I have discovered that this problem is also true for sprites that I add directly to my scene, such as the sprite clown added as shown below:</p> <pre><code>CCSprite *clown; @implementation HelloWorld -(id) init { if( (self=[super init] )) { // some code clown = [[CCSprite spriteWithFile:@"clown.png"] retain]; [self addChild:clown z:2]; // some more code } } @end </code></pre> <p>==END OF EDIT===</p>
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    1. USDavid
    1. USDavid
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    1. COThere should be a pause() method in Cocos2D you can call to stop elapsing its virtual time. Are you already calling it? Cheers.
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      1. USLoic Argelies
 

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