Sparrow Forum

1. 

   jdanek
   Member

   So im trying to make a countdown and when i try to run the following code in my main method i get a juggler undeclared error. whats hapening:

   		SPTextField *timerField =[SPTextField textFieldWithText:@"15"];
   		timerField.fontName = @"Marker Felt";
   		timerField.x = -90;
   		timerField.y = 7;
   		timerField.vAlign = SPVAlignTop;
   		timerField.hAlign = SPHAlignRight;
   		timerField.fontSize = 20;
   		[self addChild:timerField];
    
   		[[juggler delayInvocationAtTarget:timerField byTime:1.0] setText:@"14"];
   		[[juggler delayInvocationAtTarget:timerField byTime:2.0] setText:@"13"];

   Posted 1 year ago #
2. 

   Mik
   Member

   Add "self.stage." before "juggler"

   [[self.stage.juggler delayInvocationAtTarget:timerField byTime:1.0] setText:@"14"];
   [[self.stage.juggler delayInvocationAtTarget:timerField byTime:2.0] setText:@"13"];

   Posted 1 year ago #
3. 

   jdanek
   Member

   Mik i tryed the code in a new project to make sure it works and it did. So then i put it into my game. It didnt work. I think this is because i have 2 scenes or stages. I have a game.h and a gamescene.h the game.h is a menu and the gamescene.h is the actual game so would i do anything different to the code because it just shows up on my screen as a sptextfield with 15 and never changes.

   Thanks for responding.

   -JDanek

   Posted 1 year ago #
4. 

   Daniel
   Primary Feather

   You're probably calling "self.stage" in one of your init-methods. In classes other than the stage, the property "self.stage" returns nil in the init-method. That's because the method just calls "self.parent" until it finds a parent that is the stage. In the init-method, however, your object does not have a parent yet, thus you cannot access the stage.

   You can either make a separate method to start the animations (called after the object is added to a parent) or you start the animations in an added-to-stage event listener. The movie scene in the Demo app does it like this, you can have a look at this class to see how to do it.

   Posted 1 year ago #

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