public enum Space
{
  OPEN(true, false, false, false),
  WALL(false, false, false, false), 
  FOOD(true, true, false, true),
  POISON(true, false, true, true),
  VISITED(false, false, false, false);
  
  private boolean passable;
  private boolean beneficial;
  private boolean dangerous;
  private boolean consumable;
  
  private Space(boolean passable, boolean beneficial, boolean dangerous,
    boolean consumable)
  {
    this.passable = passable;
    this.beneficial = beneficial;
    this.dangerous = dangerous;
    this.consumable = consumable;
  }
  
  public boolean isPassable()
  {
    return this.passable;
  }
  
  public boolean isBeneficial()
  {
    return this.beneficial;
  }
  
  public boolean isDangerous()
  {
    return this.dangerous;
  }
  
  public boolean isConsumable()
  {
    return this.consumable;
  }
}