#==============================================================================
# ■ Scene_Menu
#------------------------------------------------------------------------------
#  处理菜单画面的类。
#==============================================================================
 
class Scene_Menu < Scene_Base
  #--------------------------------------------------------------------------
  # ● 初始化对像
  #     menu_index : 命令窗口光标初始位置
  #--------------------------------------------------------------------------
  def initialize(menu_index = 0)
    @menu_index = menu_index
  end
  #--------------------------------------------------------------------------
  # ● 开始处理
  #--------------------------------------------------------------------------
  def start
    super
    create_menu_background
    create_command_window
    @gold_window = Window_Gold.new(0, 360)
    @status_window = Window_MenuStatus.new(160, 0)
  end
  #--------------------------------------------------------------------------
  # ● 结束处理
  #--------------------------------------------------------------------------
  def terminate
    super
    dispose_menu_background
    @command_window.dispose
    @gold_window.dispose
    @status_window.dispose
  end
  #--------------------------------------------------------------------------
  # ● 更新画面
  #--------------------------------------------------------------------------
  def update
    super
    update_menu_background
    @command_window.update
    @gold_window.update
    @status_window.update
    if @command_window.active
      update_command_selection
    elsif @status_window.active
      update_actor_selection
    end
  end
  #--------------------------------------------------------------------------
  # ● 生成命令窗口
  #--------------------------------------------------------------------------
  def create_command_window
    s1 = Vocab::item
    s2 = Vocab::equip
    s3 = Vocab::save
    s4 = Vocab::game_end
    @command_window = Window_Command.new(160, [s1, s2, s3, s4])
    @command_window.index = @menu_index
    if $game_party.members.size == 0          # 如果队伍为空
      @command_window.draw_item(0, false)     # 无效化物品选项
      @command_window.draw_item(1, false)     # 无效化技能选项
      @command_window.draw_item(2, false)     # 无效化装备选项
      @command_window.draw_item(3, false)     # 无效化状态选项
    end
    if $game_system.save_disabled             # 如果禁止存档
      @command_window.draw_item(4, false)     # 无效化存档选项
    end
  end
  #--------------------------------------------------------------------------
  # ● 更新命令窗口
  #--------------------------------------------------------------------------
  def update_command_selection
    if Input.trigger?(Input::B)
      Sound.play_cancel
      $scene = Scene_Map.new
    elsif Input.trigger?(Input::C)
      if $game_party.members.size == 0 and @command_window.index < 4
        Sound.play_buzzer
        return
      elsif $game_system.save_disabled and @command_window.index == 4
        Sound.play_buzzer
        return
      end
      Sound.play_decision
      case @command_window.index
      when 0      #  物品
        $scene = Scene_Item.new
      when 1      #  装备
        start_actor_selection
      when 2      #  存档        
        $scene = Scene_File.new(true, false, false)
      when 3      #  结束游戏
        $scene = Scene_End.new
      end
    end
  end
  #--------------------------------------------------------------------------
  # ● 角色选择开始
  #--------------------------------------------------------------------------
  def start_actor_selection
    @command_window.active = false
    @status_window.active = true
    if $game_party.last_actor_index < @status_window.item_max
      @status_window.index = $game_party.last_actor_index
    else
      @status_window.index = 0
    end
  end
  #--------------------------------------------------------------------------
  # ● 角色选择结束
  #--------------------------------------------------------------------------
  def end_actor_selection
    @command_window.active = true
    @status_window.active = false
    @status_window.index = -1
  end
  #--------------------------------------------------------------------------
  # ● 角色选择更新
  #--------------------------------------------------------------------------
  def update_actor_selection
    if Input.trigger?(Input::B)
      Sound.play_cancel
      end_actor_selection
    elsif Input.trigger?(Input::C)
      $game_party.last_actor_index = @status_window.index
      Sound.play_decision
      case @command_window.index
      when 1  # 装备
        $scene = Scene_Equip.new(@status_window.index)
      when 2  # 技能
        $scene = Scene_Skill.new(@status_window.index)
      when 3  # 状态
        $scene = Scene_Status.new(@status_window.index)
      end
    end
  end
end