#==============================================================================
# ■ VXAce-RGSS3-31 和風レイアウト <skill>          by Claimh
#------------------------------------------------------------------------------
# スキル画面変更
#==============================================================================

#==============================================================================
# ■ Window_SkillCommand
#------------------------------------------------------------------------------
# 　スキル画面で、コマンド（特技や魔法など）を選択するウィンドウです。
#==============================================================================

class Window_J_SkillCommand < Window_J_Command
  #--------------------------------------------------------------------------
  # ● 公開インスタンス変数
  #--------------------------------------------------------------------------
  attr_reader   :skill_window
  #--------------------------------------------------------------------------
  # ● オブジェクト初期化
  #--------------------------------------------------------------------------
  def initialize(x, y)
    super(x, y)
    @actor = nil
  end
  #--------------------------------------------------------------------------
  # ● ウィンドウ幅の取得
  #--------------------------------------------------------------------------
  def window_width
    fitting_width(visible_line_number)
  end
  #--------------------------------------------------------------------------
  # ● ウィンドウ幅の取得
  #--------------------------------------------------------------------------
  def window_height
    return 120
  end
  #--------------------------------------------------------------------------
  # ● アクターの設定
  #--------------------------------------------------------------------------
  def actor=(actor)
    return if @actor == actor
    @actor = actor
    refresh
    select_last
  end
  #--------------------------------------------------------------------------
  # ● 表示行数の取得
  #--------------------------------------------------------------------------
  def visible_line_number
    return 4
  end
  #--------------------------------------------------------------------------
  # ● コマンドリストの作成
  #--------------------------------------------------------------------------
  def make_command_list
    return unless @actor
    @actor.added_skill_types.sort.each do |stype_id|
      name = $data_system.skill_types[stype_id]
      add_command(name, :skill, true, stype_id)
    end
  end
  #--------------------------------------------------------------------------
  # ● フレーム更新
  #--------------------------------------------------------------------------
  def update
    super
    @skill_window.stype_id = current_ext if @skill_window
  end
  #--------------------------------------------------------------------------
  # ● スキルウィンドウの設定
  #--------------------------------------------------------------------------
  def skill_window=(skill_window)
    @skill_window = skill_window
    update
  end
  #--------------------------------------------------------------------------
  # ● 前回の選択位置を復帰
  #--------------------------------------------------------------------------
  def select_last
    skill = @actor.last_skill.object
    if skill
      select_ext(skill.stype_id)
    else
      select(0)
    end
  end
end


#==============================================================================
# ■ Window_SkillStatus
#------------------------------------------------------------------------------
# 　スキル画面で、スキル使用者のステータスを表示するウィンドウです。
#==============================================================================

class Window_SkillStatus < Window_Base
  #--------------------------------------------------------------------------
  # ● ウィンドウ幅の取得
  #--------------------------------------------------------------------------
  def window_width
    Graphics.width - fitting_height(2) - 120
  end
  #--------------------------------------------------------------------------
  # ● リフレッシュ
  #--------------------------------------------------------------------------
  def refresh
    contents.clear
    return unless @actor
    draw_actor_face(@actor, 0, 0)
    draw_actor_simple_status(@actor, 108, line_height / 2, 90)
  end
end


#==============================================================================
# ■ Window_J_SkillList
#------------------------------------------------------------------------------
# 　スキル画面で、使用できるスキルの一覧を表示するウィンドウです。
#==============================================================================

class Window_J_SkillList < Window_J_Selectable
  #--------------------------------------------------------------------------
  # ● オブジェクト初期化
  #--------------------------------------------------------------------------
  def initialize(x, y, width, height)
    super
    @actor = nil
    @stype_id = 0
    @data = []
  end
  #--------------------------------------------------------------------------
  # ● アクターの設定
  #--------------------------------------------------------------------------
  def actor=(actor)
    return if @actor == actor
    @actor = actor
    refresh
    self.oy = 0
  end
  #--------------------------------------------------------------------------
  # ● スキルタイプ ID の設定
  #--------------------------------------------------------------------------
  def stype_id=(stype_id)
    return if @stype_id == stype_id
    @stype_id = stype_id
    refresh
    self.oy = 0
  end
  #--------------------------------------------------------------------------
  # ● 桁数の取得
  #--------------------------------------------------------------------------
  def col_max
    return 1
  end
  #--------------------------------------------------------------------------
  # ● 項目数の取得
  #--------------------------------------------------------------------------
  def item_max
    @data ? @data.size : 1
  end
  #--------------------------------------------------------------------------
  # ● スキルの取得
  #--------------------------------------------------------------------------
  def item
    @data && index >= 0 ? @data[index] : nil
  end
  #--------------------------------------------------------------------------
  # ● 選択項目の有効状態を取得
  #--------------------------------------------------------------------------
  def current_item_enabled?
    enable?(@data[index])
  end
  #--------------------------------------------------------------------------
  # ● スキルをリストに含めるかどうか
  #--------------------------------------------------------------------------
  def include?(item)
    item && item.stype_id == @stype_id
  end
  #--------------------------------------------------------------------------
  # ● スキルを許可状態で表示するかどうか
  #--------------------------------------------------------------------------
  def enable?(item)
    @actor && @actor.usable?(item)
  end
  #--------------------------------------------------------------------------
  # ● スキルリストの作成
  #--------------------------------------------------------------------------
  def make_item_list
    @data = @actor ? @actor.skills.select {|skill| include?(skill) } : []
  end
  #--------------------------------------------------------------------------
  # ● 前回の選択位置を復帰
  #--------------------------------------------------------------------------
  def select_last
    select(@data.index(@actor.last_skill.object) || 0)
  end
  #--------------------------------------------------------------------------
  # ● 項目の描画
  #--------------------------------------------------------------------------
  def draw_item(index)
    skill = @data[index]
    if skill
      rect = item_rect(index)
      rect.width -= 4
      draw_item_name(skill, rect.x, rect.y, enable?(skill))
      draw_skill_cost(rect, skill)
    end
  end
  #--------------------------------------------------------------------------
  # ● スキルの使用コストを描画
  #--------------------------------------------------------------------------
  def draw_skill_cost(rect, skill)
    rect.y = rect.height - line_width
    rect.height = line_width
    if @actor.skill_tp_cost(skill) > 0
      change_color(tp_cost_color, enable?(skill))
      contents.draw_text(rect, @actor.skill_tp_cost(skill), 2)
    elsif @actor.skill_mp_cost(skill) > 0
      change_color(mp_cost_color, enable?(skill))
      contents.draw_text(rect, @actor.skill_mp_cost(skill), 2)
    end
  end
  #--------------------------------------------------------------------------
  # ● ヘルプテキスト更新
  #--------------------------------------------------------------------------
  def update_help
    @help_window.set_item(item)
  end
  #--------------------------------------------------------------------------
  # ● リフレッシュ
  #--------------------------------------------------------------------------
  def refresh
    make_item_list
    create_contents
    draw_all_items
  end
end


#==============================================================================
# ■ Scene_Skill
#------------------------------------------------------------------------------
# 　スキル画面の処理を行うクラスです。処理共通化の便宜上、スキルも「アイテム」
# として扱っています。
#==============================================================================

class Scene_Skill < Scene_ItemBase
  #--------------------------------------------------------------------------
  # ● カーソルが左列にあるかの判定
  #--------------------------------------------------------------------------
  def cursor_left?
#~     @item_window.index % 2 == 0
    true
  end
  #--------------------------------------------------------------------------
  # ● ヘルプウィンドウの作成
  #--------------------------------------------------------------------------
  def create_help_window
    @help_window = Window_J_Help.new
    @help_window.viewport = @viewport
  end
  #--------------------------------------------------------------------------
  # ● コマンドウィンドウの作成
  #--------------------------------------------------------------------------
  def create_command_window
    @command_window = Window_J_SkillCommand.new(0, 0)
    @command_window.x = Graphics.width - @command_window.width
    @command_window.viewport = @viewport
    @command_window.help_window = @help_window
    @command_window.actor = @actor
    @command_window.set_handler(:skill,    method(:command_skill))
    @command_window.set_handler(:cancel,   method(:return_scene))
    @command_window.set_handler(:pagedown, method(:next_actor))
    @command_window.set_handler(:pageup,   method(:prev_actor))
  end
  #--------------------------------------------------------------------------
  # ● ステータスウィンドウの作成
  #--------------------------------------------------------------------------
  def create_status_window
    @status_window = Window_SkillStatus.new(@help_window.width, 0)
    @status_window.viewport = @viewport
    @status_window.actor = @actor
  end
  #--------------------------------------------------------------------------
  # ● アイテムウィンドウの作成
  #--------------------------------------------------------------------------
  def create_item_window
    wx = @help_window.width
    wy = @status_window.height
    ww = Graphics.width - wx
    wh = Graphics.height - wy
    @item_window = Window_J_SkillList.new(wx, wy, ww, wh)
    @item_window.actor = @actor
    @item_window.viewport = @viewport
    @item_window.help_window = @help_window
    @item_window.set_handler(:ok,     method(:on_item_ok))
    @item_window.set_handler(:cancel, method(:on_item_cancel))
    @command_window.skill_window = @item_window
  end
end