class Arrow_Enemy < Arrow_Base
  #--------------------------------------------------------------------------
  # * Frame Update
  #--------------------------------------------------------------------------
  def update
    super
    # Skip if indicating a nonexistant enemy
    $game_troop.enemies.size.times do
      break if self.enemy.exist?
      @index += 1
      @index %= $game_troop.enemies.size
    end
    # Cursor right or down
    if Input.repeat?(Input::LEFT) or Input.repeat?(Input::UP)
      $game_system.se_play($data_system.cursor_se)
      $game_troop.enemies.size.times do
        @index += 1
        @index %= $game_troop.enemies.size
        break if self.enemy.exist?
      end
    end
    # Cursor left or up
    if Input.repeat?(Input::RIGHT) or Input.repeat?(Input::DOWN)
      $game_system.se_play($data_system.cursor_se)
      $game_troop.enemies.size.times do
        @index += $game_troop.enemies.size - 1
        @index %= $game_troop.enemies.size
        break if self.enemy.exist?
      end
    end
    # Set sprite coordinates
    if self.enemy != nil
      self.x = self.enemy.screen_x
      self.y = self.enemy.screen_y - self.enemy.height / 2
    end
  end
end