title: Cocos2d schedule interval decreaser
body: <p>I have made a simple timer but in trying to increase the timers speed over time, so I basically want the timer to have an interval of 1.0 and every 10 seconds I want that timer's interval to decrease by 0.1 </p>
  
  <p>How can I go about doing that?</p>
  
  <pre><code>[self schedule:@selector(tick:)interval:1.0];
  </code></pre>
  
  <p>That's in the init section</p>
  
  <pre><code>-(void)tick:(ccTime)dt{
  myTime = myTime+1;
  totalTime = myTime; 
  
  [timeLabel setString:[NSString stringWithFormat:@"%i", totalTime]]; 
  }
  </code></pre>
  
  <p>That's the timer.</p>
  
  <p>It's a basic timer which has an interval of 1.0 second, however I would like the interval to decrease by 10% every 10 seconds.</p>