anchor.diff:      _controller.close();
     }
   
  +  StreamSubscription<String> _start(void onData(String line), {void
  +      onError(Error error), void onDone(), bool cancelOnError}) {
  +    return _controller.stream.listen(
  +        onData,
  +        onError: onError,
  +        onDone: onDone,
  +        cancelOnError: cancelOnError);
  +  }
  +
     void _constructor() {
       load();
       game.resourceManager.load().then((_) {
  
positive.code:         game.world.removeEventListeners(event);
        }
      });
  
    }
  
  
  }
  
negative.code:  * 
   * */
  
  abstract class State {
  
    static const String _PAUSE = "PAUSE";
  
  