System Options Add-on

class Window_SystemOptions < Window_Command
  #--------------------------------------------------------------------------
  # * Move Cursor Down
  #--------------------------------------------------------------------------
  def cursor_down(wrap = false)
    if index < item_max - col_max || (wrap && col_max == 1)
      select((index + col_max) % item_max)
      cursor_down(wrap) if current_symbol == :blank
    end
  end
  #--------------------------------------------------------------------------
  # * Move Cursor Up
  #--------------------------------------------------------------------------
  def cursor_up(wrap = false)
    if index >= col_max || (wrap && col_max == 1)
      select((index - col_max + item_max) % item_max)
      cursor_up(wrap) if current_symbol == :blank
    end
  end
  #--------------------------------------------------------------------------
  # * Get Rectangle for Drawing Items
  #--------------------------------------------------------------------------
  def item_rect(index)
    lines = YEA::SYSTEM::COMMANDS.size
    h = (height - lines * line_height - line_height) / 2
    rect = Rect.new
    rect.width = item_width
    rect.height = item_height
    rect.x = index % col_max * (item_width + spacing)
    rect.y = index / col_max * item_height + h
    rect
  end
  #--------------------------------------------------------------------------
  # * Draw Horizontal Line
  #--------------------------------------------------------------------------
  def draw_horz_line(y)
    line_y = y + line_height / 2 - 1
    contents.fill_rect(0, line_y, contents_width, 2, line_color)
  end
  #--------------------------------------------------------------------------
  # * Get Color of Horizontal Line
  #--------------------------------------------------------------------------
  def line_color
    color = normal_color
    color.alpha = 48
    color
  end
  #--------------------------------------------------------------------------
  # draw_item
  #--------------------------------------------------------------------------
  def draw_item(index)
    reset_font_settings
    rect = item_rect(index)
    contents.clear_rect(rect)
    case @list[index][:symbol]
    when :blank
      draw_horz_line(rect.y)
    when :window_red, :window_grn, :window_blu
      draw_window_tone(rect, index, @list[index][:symbol])
    when :volume_bgm, :volume_bgs, :volume_sfx
      draw_volume(rect, index, @list[index][:symbol])
    when :autodash, :instantmsg, :animations
      draw_toggle(rect, index, @list[index][:symbol])
    when :to_title, :shutdown
      draw_text(item_rect_for_text(index), command_name(index), 1)
    when :custom_switch
      draw_custom_switch(rect, index, @list[index][:ext])
    when :custom_variable
      draw_custom_variable(rect, index, @list[index][:ext])
    end
  end
end