title: Change NSTimer speed with variable?
body: <p>I have a timer that launches in viewDidLoad that looks like this</p>
  
  <p><code>[NSTimer scheduledTimerWithTimeInterval:0.001f target:self selector:@selector(Dragon:) userInfo:nil repeats:YES];</code></p>
  
  <p>I want to be able to change my Interval with a variable.  However, any time I try to place a variable where the 0.001f is I get errors... any ideas?</p>