title: Cocos2d scheduling selector in child node
body: <p>I'd like to schedule a selector in a child node of the class GameScene without having to call the schedule method in the child node class (e.g. [self schedule etc..]).</p>
  
  <p>Here is the code snippet I am calling in the GameScene class to call a method in the child class that handles the background of my GameScene.</p>
  
  <pre><code>ParallaxMultipleBackgrounds *background = [self getChildByTag:GameSceneBackgroundBase];
  //I TRIED THIS:
  [background schedule:@selector(([background changeSpeedFactorBy:3])) interval:1];
  //AND 
  [background schedule:@selector(changeSpeedFactorBy:3)];
  //AND
  [[background schedule:@selector(changeSpeedFactorBy:3) interval:1] ];
  //BUT..
  </code></pre>
  
  <p>Unfortunately none of those methods call works as I get various error message from the compiler. I am not sure how what I am doing wrong because I declared the selector <strong>-(void) changeSpeedFactorBy:(float)factor</strong> in the ParallaxMultipleBackgrounds class.</p>
  
  <p>Any help?</p>