#==============================================================================
# ** Scene_Menu
#------------------------------------------------------------------------------
#  This class performs the menu screen processing.
#==============================================================================

class Scene_Menu < Scene_Base
  #--------------------------------------------------------------------------
  # * Object Initialization
  #    menu_index : command cursor's initial position
  #--------------------------------------------------------------------------
  def initialize(menu_index = 0)
    @menu_index = menu_index
  end
  #--------------------------------------------------------------------------
  # * Start processing
  #--------------------------------------------------------------------------
  def start
    super
    create_menu_background
    create_command_window
    @gold_window = Window_Gold.new(384, 1)
    @status_window = Window_MenuStatus.new(1, 1)
  end
  #--------------------------------------------------------------------------
  # * Termination Processing
  #--------------------------------------------------------------------------
  def terminate
    super
    dispose_menu_background
    @command_window.dispose
    @gold_window.dispose
    @status_window.dispose
  end
  #--------------------------------------------------------------------------
  # * Frame Update
  #--------------------------------------------------------------------------
  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
  #--------------------------------------------------------------------------
  # * Create Command Window
  #--------------------------------------------------------------------------
  def create_command_window
    s1 = Vocab::item
    s2 = Vocab::skill
    s3 = Vocab::equip
    s4 = Vocab::status
    s5 = Vocab::save
    s6 = Vocab::game_end
    @command_window = Window_Command.new(160,[s1, s2, s3, s4, s5, s6])
    @command_window.index = @menu_index
    if $game_party.members.size == 0          # If number of party members is 0
      @command_window.draw_item(0, false)    # Disable item
      @command_window.draw_item(1, false)    # Disable skill
      @command_window.draw_item(2, false)    # Disable equipment
      @command_window.draw_item(3, false)    # Disable status
    end
    if $game_system.save_disabled            # If save is forbidden
      @command_window.draw_item(4, false)    # Disable save
    end
  end
  #--------------------------------------------------------------------------
  # * Update Command Selection
  #--------------------------------------------------------------------------
  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      # Item
        $scene = Scene_Item.new
      when 1,2,3  # Skill, equipment, status
        start_actor_selection
      when 4      # Save
        $scene = Scene_File.new(true, false, false)
      when 5      # End Game
        $scene = Scene_End.new
      end
    end
  end
  #--------------------------------------------------------------------------
  # * Start Actor Selection
  #--------------------------------------------------------------------------
  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
  #--------------------------------------------------------------------------
  # * End Actor Selection
  #--------------------------------------------------------------------------
  def end_actor_selection
    @command_window.active = true
    @status_window.active = false
    @status_window.index = -1
  end
  #--------------------------------------------------------------------------
  # * Update Actor Selection
  #--------------------------------------------------------------------------
  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  # skill
        $scene = Scene_Skill.new(@status_window.index)
      when 2  # equipment
        $scene = Scene_Equip.new(@status_window.index)
      when 3  # status
        $scene = Scene_Status.new(@status_window.index)
      end
    end
  end
end

#==============================================================================
# ** Window_MenuStatus
#------------------------------------------------------------------------------
#  This window displays party member status on the menu screen.
#==============================================================================

class Window_MenuStatus < Window_Selectable
  #--------------------------------------------------------------------------
  # * Object Initialization
  #    x : window X coordinate
  #    y : window Y coordinate
  #--------------------------------------------------------------------------
  def initialize(x, y)
    super(x, y, 384, 416)
    refresh
    self.active = false
    self.index = -1
  end
  #--------------------------------------------------------------------------
  # * Refresh
  #--------------------------------------------------------------------------
  def refresh
    self.contents.clear
    @item_max = $game_party.members.size
    for actor in $game_party.members
      draw_actor_face(actor, 2, actor.index * 96 + 2, 92)
      x = 104
      y = actor.index * 96 + WLH / 2
      draw_actor_name(actor, x, y)
      draw_actor_class(actor, x + 120, y)
      draw_actor_level(actor, x, y + WLH * 1)
      draw_actor_state(actor, x, y + WLH * 2)
      draw_actor_hp(actor, x + 120, y + WLH * 1)
      draw_actor_mp(actor, x + 120, y + WLH * 2)
    end
  end
  #--------------------------------------------------------------------------
  # * Update cursor
  #--------------------------------------------------------------------------
  def update_cursor
    if @index < 0              # No cursor
      self.cursor_rect.empty
    elsif @index < @item_max    # Normal
      self.cursor_rect.set(0, @index * 96, contents.width, 96)
    elsif @index >= 100        # Self
      self.cursor_rect.set(0, (@index - 100) * 96, contents.width, 96)
    else                        # All
      self.cursor_rect.set(0, 0, contents.width, @item_max * 96)
    end
  end
end

#==============================================================================
# ** Window_Command
#------------------------------------------------------------------------------
#  This window deals with general command choices.
#==============================================================================

class Window_Command < Window_Selectable
  #--------------------------------------------------------------------------
  # * Public Instance Variables
  #--------------------------------------------------------------------------
  attr_reader  :commands                # command
  #--------------------------------------------------------------------------
  # * Object Initialization
  #    width      : window width
  #    commands  : command string array
  #    column_max : digit count (if 2 or more, horizontal selection)
  #    row_max    : row count (0: match command count)
  #    spacing    : blank space when items are arrange horizontally
  #--------------------------------------------------------------------------
  def initialize(width, commands, column_max = 1, row_max = 0, spacing = 32)
    if row_max == 0
      row_max = (commands.size + column_max - 1) / column_max
    end
    super(384, 50, width, row_max * WLH + 32, spacing)
    @commands = commands
    @item_max = commands.size
    @column_max = column_max
    refresh
    self.index = 0
  end
  #--------------------------------------------------------------------------
  # * Refresh
  #--------------------------------------------------------------------------
  def refresh
    self.contents.clear
    for i in 0...@item_max
      draw_item(i)
    end
  end
  #--------------------------------------------------------------------------
  # * Draw Item
  #    index  : item number
  #    enabled : enabled flag. When false, draw semi-transparently.
  #--------------------------------------------------------------------------
  def draw_item(index, enabled = true)
    rect = item_rect(index)
    rect.x += 4
    rect.width -= 8
    self.contents.clear_rect(rect)
    self.contents.font.color = normal_color
    self.contents.font.color.alpha = enabled ? 255 : 128
    self.contents.draw_text(rect, @commands[index])
  end
end