public class GameData<G extends Goal, T extends Threat> extends
    ElementState
{
  @simpl_scalar
  protected long                                timestamp;

  /** Number of game cycles remaining. */
  @simpl_scalar
  protected int                                cycRem;

  /**
   * Indicates that, if the game is running, it should be paused; by default, the game starts this
   * way and a user needs to activate it.
   */
  @simpl_scalar
  protected boolean                              paused  = false;

  @simpl_scalar
  protected boolean                              loaded  = false;

  /**
   * Game state flag indicating that the game is currently executing play cycles.
   */
  @simpl_scalar
  protected boolean                              running                  = false;

  /** Game state flag indicating that the players have won the game. */
  @simpl_scalar
  protected boolean                              won                      = false;

  /** List of Threat objects. */
  
  @simpl_classes(
  { Threat.class, SingleSeekerThreat.class, OrbitingThreat.class, RepellableThreat.class,
      PatrollingThreat.class })
  @simpl_collection
  protected ArrayList<T>                    threats                  = new ArrayList<T>();


  @simpl_scalar
  protected double                              score                    = 0;

  /** No-argument constructor, required for ElementState. */
  public GameData()
  {
    super();
  }
}

@simpl_inherit
@xml_tag("t")
public class Threat extends Targetter
{
  /**
   * No-argument constructor, required for ElementState.
   */
  public Threat()
  {
    super();
  }
}

@simpl_inherit
@xml_tag("ot")
public class OrbitingThreat extends Threat
{
  /** Constructor stub for XML translation. */
  public OrbitingThreat()
  {
  }
}

  /*
   * Creating Translation Scope of all the classes used by game data object
   */
  private static TranslationScope get()
  {

    
    TranslationScope tScope = TranslationScope.get("gamedata", GameData.class,
        Threat.class, SingleSeekerThreat.class, OrbitingThreat.class, RepellableThreat.class,
        PatrollingThreat.class, SeekerAvatar.class, LocationAwareSeekerAvatar.class,
        Targetter.class, Mover.class, Entity.class, ColState.class);
    
    return tScope;
  }

    try 
    {
      /*
       * Get translation scope
       */
      TranslationScope tScope = get();
      String fileData = readFileAsStringFile("src/tutorials/polymorphic/GameData.xml");
      
      /*
       * Translating back from sample gameData file
       */
      GameData<?> gd = (GameData<?>) tScope.deserializeCharSequence(fileData);
      
      
      /*
       * Translating the game data back to XML 
       */
      gd.serialize(new File("ecologylab/tutorials/polymorphic/output.xml"));
      
      //Again to console
      gd.serialize(System.out);
      
    }
    catch (Exception e) 
    {
      e.printStackTrace();
    }