cocos2d for iPhone

A fast, easy to use, free, and community supported 2D game engine

1. 

   vultuk
   Member

   Hi,

   Just getting into Cocos2d and game development in general and i'm having a bit of trouble using a singleton directly from the ccTouchesEnded method. Below is the code i'm using to test this.

   -(id) init
   {
   	if( (self=[super init])) {
   
   		self.isTouchEnabled = YES;
   
   		// This works fine and can be called any number of times
   		[[characterInformation sharedCharacterInformation] addXP:[NSNumber numberWithInt:100]];
   		[[characterInformation sharedCharacterInformation] addXP:[NSNumber numberWithInt:100]];
   		[[characterInformation sharedCharacterInformation] addXP:[NSNumber numberWithInt:100]];
   		[[characterInformation sharedCharacterInformation] addXP:[NSNumber numberWithInt:100]];
   
   	}
   	return self;
   }
   
   - (void)ccTouchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
   
   	// This doesn't work and crashes the application
   	[[characterInformation sharedCharacterInformation] addXP:[NSNumber numberWithInt:100]];
   
   }

   I'm not entirely sure why it's crashing on touching the screen as it doesn't from the init method (or any other method I create) can anyone shed any light on it?

   Thanks in advance

   Posted 1 year ago #
2. 

   Verisutha
   Member

   Did you use a break point and trace the code?

   Also where do you actually create your singleton?

   Side note this isn't a cocos2d issue, try to post in the correct forums.

   Posted 1 year ago #
3. 

   vultuk
   Member

   My apologies for posting in the incorrect forum, as this error was only happening in the ccTouchesEnded method I presumed that it was related to cocos2d.

   However, I have now solved the problem, as expected it was down to my own silly fault and was actually an error in the singleton itself where I had used

   currentXP = [NSNumber numberWithInt:([currentXP intValue] + [xp intValue])];

   instead of

   self.currentXP = [NSNumber numberWithInt:([currentXP intValue] + [xp intValue])];

   Thanks for trying to help i'll go back to silently kicking myself under the desk now! :D

   Posted 1 year ago #

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