cocos2d for iPhone

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

1. 

   alexasha
   Member

   I know how to call method from AppDelegate.

   //IN APP DELEGATE
   [GameHUD pause];
   
   //IN GAME HUD
   +(void)pause{
        NSLog(@"Pause");
   }

   But I can't call any method in GameHUD for some reason.

   /IN GAME HUD
   +(void)pause{
        NSLog(@"Pause");
        [self  displayPause]; //GET UNRECOGNIZED SELECTOR ERROR HERE
   }

   I don't know why this doesn't work. What am I doing wrong?
   Thanks!

   Posted 1 year ago #
2. 

   bazcocos
   Member

   calling a non-static (instance) function from within a static (class method) function. I think... ts late though.

   Posted 1 year ago #
3. 

   alexasha
   Member

   What would be the best way to solve my problems?

   Posted 1 year ago #
4. 

   Blue Ether
   Member

   Many possibilities.

   1. Make pause an instance method instead of a static method.
   2. Make displayPause a static method instead of an instance method
   3. Make your GameHUD class into a singleton

   http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/CocoaFundamentals/CocoaObjects/CocoaObjects.html
   (Search for "Creating a Singleton Instance")

   Posted 1 year ago #
5. 

   alexasha
   Member

   +(void)pausedFromBackground{
        [[[self alloc] init] openPause];
   }
   
   -(void)openPause{
       NSLog(@"Open Pause Layer");
   
   }

   This is how it worked.
   But now if I try to add child from openPause it doesn't work.

   Posted 1 year ago #
6. 

   Blue Ether
   Member

   Yeah, that's not "how it worked". You're creating an entirely new instance of your HUD every time you unpause, without bothering to clean up the old one, and you're retaining it without storing a reference. That code makes me sad. You are apparently way over your head and need to go back and learn more about the basics of C/Objective C/programming first.

   Posted 1 year ago #
7. 

   tonyngo
   Member

   I agree with @blue-ether that you should learn more about the basics of Objective-C first, no offense intended. When you are ready, google for NSNotificationCenter examples. That class will solve your problem here.

   Posted 1 year ago #

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