cocos2d for iPhone

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

1. 

   Crow
   Member

   Hello guys, this is my first post on this forum and I must say that I am TOTALLY LOST with the example that was posted on the cocos2d wiki for the schedule timer. Here's what they posted.

   -(id) init
   {
       if( (self=[super init] ) ) {
           // schedule a callback
           [self scheduleUpdate];  // available since v0.99.3
           [self schedule: @selector(tick2:) interval:0.5];
       }
   
       return self;
   }
   
   -(void) update: (ccTime) dt
   {
       // bla bla bla
   }
   
   -(void) tick2: (ccTime) dt
   {
       // bla bla bla
   }

   But I'm not sure how to use it. What goes in the update method and what goes in tick2? What is happening here? Why is there an interval of 0.5 for the second tick?

   My goal is just to make a variable called GameTime and count the time that has elasped since I started the scene and then post on each second the updated time in my console (basically, I want to print each second using NSLog). Can you guys help?

   Posted 1 year ago #
2. 

   pabloruiz55
   Member

   Hello and welcome!

   Using the schedule method will have the selector you pass to it run again and again each x seconds you specify (that's the interval argument).
   So in the example above the tick2 method will be called each 0.5 seconds.
   the scheduleUpdate does the same, but you don't pass an interval, it will call the update method as fast as it can.

   to count the elapsed seconds you could schedule a "count" method with an interval of 1

   [self schedule: @selector(count) interval:1];
   

   -(void)count
   {
      elapsedSeconds++; //elapsedSeconds being an ivar.
   }

   Posted 1 year ago #
3. 

   Crow
   Member

   haha i already figured it out but thanks anyway.

   Posted 1 year ago #

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