title: Access function with ENTER_FRAME event from one class and send updates to other class in AS3
body: <p>I want to start a project. But, while doing a paperwork, i realized one situation as follows,</p>
  
  <p>Say, we have 3 classes. </p>
  
  <ol>
  <li>Main.as,</li>
  <li>A.as, </li>
  <li>B.as</li>
  </ol>
  
  <p>Here, "Main.as" is a central class which creates instance of A and B.</p>
  
  <p>Class A has some function say "updatePosition(e:Event)" with ENTER_FRAME event.</p>
  
  <p>Class B is required to get update from this "updatePosition(e:Event)" from class A via "Main.as"</p>
  
  <p>How can this be achieved only with one ENTER_FRAME event and that of in A.as class only?</p>