Contoh window selectable + help

class Window_CustomCommand < Window_Command

  def initialize
    super(0,0)
  end

  def make_command_list
    add_command("Command 1", :cmd1)
    add_command("Command 2", :cmd2)
    add_command("Command 3", :cmd3)
  end

  def update_help
    @help_window.contents.clear
    rect = @help_window.contents.rect
    @help_window.draw_text(rect, "Ini index nomor #{index}", 1)
  end

end

DataManager.init
def updates
  Graphics.update
  Input.update
  @selectable.update
  @help.update
end

@selectable = Window_CustomCommand.new
@help = Window_Base.new(0, Graphics.height - 48, Graphics.width, 48)

@selectable.help_window = @help
updates while true