title: Layer or Scene?
body: <p>Learning cocos2d/kobold2d and puzzled by the scenes and layers. As I understand a scene usually contains layers where the layers contain UI elements like buttons and all the logic.</p>
  
  <p>My first project is based on the kobold2d helloworld example and there I see that the layer is subclassed from CCLayer instead of CCScene. While searching about this topic I saw the helloworld example is with the layer derived from CCScene. Anyway, why does the helloworld example not derive from CCScene while it apparently did before?</p>
  
  <p>I looked at some other examples (doodle and pinball) and there also CCLayer is used and not CCScene.</p>
  
  <p>Is there a definitive guide on scenes and layers? Does kobold2d promote using just layers or how should I look at this?</p>
  
  <p>Regards,</p>
  
  <p>Rob </p>