class Player
  def  deadlyArcher?(w, spaces)
     w.health < @health and (spaces[0].enemy? or spaces[1].enemy? or spaces[2].enemy?)
  end

  def deadlyWizard?(w, spaces)
    w.health <= 12 and w.health > @health and (spaces[0].enemy? or spaces[1].enemy?)
  end

  def play_turn(w)
    if not @dir
      @dir = :forward
    end

    if @health == nil
      @health = w.health
    end

    spaces = w.look(@dir)
    spacesBack = w.look(:backward)

    if w.feel(@dir).wall?
      w.pivot!
    # Don't die by archer.
    elsif deadlyArcher?(w, spacesBack) and spaces[0].empty?
      w.walk!(@dir)
    elsif deadlyArcher?(w, spaces) and spacesBack[0].empty?
      w.walk!(:backward)
    # Don't die by wizard.
    elsif deadlyWizard?(w, spaces)
      w.walk!(:backward)
    elsif deadlyWizard?(w, spacesBack)
      w.walk!(@dir)
    elsif w.health < 20 and w.health >= @health and not spaces[0].enemy? and not spaces[1].enemy? and not spaces[2].enemy?
      w.rest!
    else
      # Advance.
      if not spaces[0].empty?
        if w.feel(@dir).captive?
          w.rescue!(@dir)
        else
          w.attack!(@dir)
        end
      elsif spaces[1].enemy? or (spaces[1].empty? and spaces[2].enemy?)
        w.shoot!(@dir)
      else
        w.walk!(@dir)
      end
    end
    @health = w.health
  end
end