自改的物品合成脚本使用时出现问题

IndigoIX

主要问题就是界面打开之后，即使金钱和素材足够，也会显示素材无法选择……
传不了图，简单po一下用法
事件脚本：
SceneManager.call(Scene_MakeItem)
SceneManager.scene.prepare(0)


代码：
[pre lang="ruby"]#==============================================================================
# ■ Scene_MakeItem
#------------------------------------------------------------------------------
# 　表单式合成界面
#==============================================================================

#~模块
module INDIX_MAKEITEM_INI
  TABLE1 = [[0, 3, 50, [1,1], [2,1] ],
            [0, 4, 60, [1,1], [2,2] ]
            #[(0物品/1武器/2护甲), 3(id), 50(制作价格), [1(id(物品)),1(数量)],[2,1]]
          ]  #一个表单里包含一套物品制作方式，使用时直接调用表单
  TABLE2 = [[1,10, 50, [1,2], [2,1] ],
            [2, 6, 60, [1,1], [2,1] ]
          ]
  
  def table
    return [TABLE1, TABLE2]  #实际调用时以table[1]表示第0个表单，以此类推
  end
end

#~列表窗口
class Window_MakeItemList < Window_Selectable
  include INDIX_MAKEITEM_INI
  
  def initialize(x, y, height, page)
    super(x, y, window_width, height)
    @page = page
    @shop_goods = []
    @shop_recipes = []
    for i in 0...table[@page].size
      recipe = table[@page]
      if recipe
        good = [recipe[0],recipe[1], recipe[2]]
        @shop_goods.push(good)
        @shop_recipes.push(recipe)
      end
    end
    @money = 0
    refresh
    select(0)
  end
  def window_width
    return 304
  end
  
  def item_max #项目最大数
    @data ? @data.size : 1
  end
  def item #项目获取
    @data[index]
  end
  def money=(money) #所持金
    @money = money
    refresh
  end
  
  def current_item_enabled? #选择项目的有效状态
    enable?(@data[index])
  end
  def price(item) #价格
    @price[item]
  end
  def enable?(item) #是否可用
    @makable[item]
  end
  def recipe(item) #配方
    @recipe[item]
  end
  
  def have_mat?(recipe)
    flag = true
    if @money >= recipe[2]
      for i in 3...recipe.size
        id   = recipe[0]
        num  = recipe[1]
        item = $data_items[id]
        if $game_party.item_number(item) < [num, 1].max
          flag = false
        end
      end
    else
      flag = false
    end
    return flag
  end
  
  def refresh #刷新
    make_item_list
    create_contents
    draw_all_items
  end
  
  def make_item_list #列表作成
    @data = []
    @price = {}
    @makable = {}
    @recipe = {}
    for i in 0...@shop_goods.size
      goods = @shop_goods
      recipe = @shop_recipes
      case goods[0]
      when 0;  item = $data_items[goods[1]]
      when 1;  item = $data_weapons[goods[1]]
      when 2;  item = $data_armors[goods[1]]
      end
      if item
        @data.push(item)
        @price[item] = goods[2]
        @makable[item] = have_mat?(recipe)
        @recipe[item] = recipe
      end
    end
  end
  
  def draw_item(index) #绘制项目
    item = @data[index]
    rect = item_rect(index)
    draw_item_name(item, rect.x, rect.y, enable?(item))
    rect.width -= 4
    draw_text(rect, price(item), 2)
  end
  
  def material_window=(material_window)
    @material_window = material_window
    call_update_help
  end
  def update_help
    @help_window.set_item(item) if @help_window
    @material_window.set(item, recipe(item)) if @material_window
  end

end

#~素材窗口
class Window_MakeItemMaterial < Window_Base
  def initialize(x, y, width, height)
    super(x, y, width, height)
    @item = nil
    refresh
  end
  def refresh
    contents.clear
    draw_possession(4, 0)
    draw_material_info(0, line_height * 2)
  end
  
  #设定物品
  def set(item, recipe)
    @item = item
    @recipe = recipe
    @make_number = 1
    refresh
  end
  
  #设定个数
  def set_num(make_number)
    @make_number = make_number
    refresh
  end
  
  #绘制所持数
  def draw_possession(x, y)
    rect = Rect.new(x, y, contents.width - 4 - x, line_height)
    change_color(system_color)
    draw_text(rect, Vocab::Possession)
    change_color(normal_color)
    draw_text(rect, $game_party.item_number(@item), 2)
  end
  
  #绘制素材情报
  def draw_material_info(x, y)
    rect = Rect.new(x, y, contents.width, line_height)
    change_color(system_color)
    contents.font.size = 18
    draw_text(rect, "素材", 0)
    if @recipe
      for i in 3...@recipe.size
        id   = @recipe[0]
        num  = @recipe[1]
        item = $data_items[id]
        rect = Rect.new(x, y + line_height*i, contents.width, line_height)
        enabled = true
        enabled = false if [num*@make_number, 1].max  > $game_party.item_number(item)
        draw_item_name(item, rect.x, rect.y, enabled)
        change_color(normal_color, enabled)
        if num > 0
          draw_text(rect, "#{num*@make_number}/#{$game_party.item_number(item)}", 2)
        end
      end
    end
    change_color(normal_color)
    contents.font.size = 24
  end
end

#~输入个数窗口
class Window_MakeItemNumber < Window_ShopNumber
  def refresh
    contents.clear
    draw_item_name(@item, 0, item_y)
    draw_number
    draw_total_price
  end
  
  def material_window=(material_window)
    @material_window = material_window
    call_update_help
  end
  
  #个数变更
  def change_number(amount)
    @number = [[@number + amount, @max].min, 1].max
    call_update_help #追加
  end
  
  def call_update_help
    @material_window.set_num(@number) if @material_window
  end
end

#~合成物品场景
class Scene_MakeItem < Scene_MenuBase
  #准备
  def prepare(page)
    @page = page
  end
  
  #开始
  def start
    super
    create_help_window
    create_number_window
    create_gold_window
    create_material_window
    create_list_window
  end
  
  def create_number_window
    wy = @help_window.height
    wh = Graphics.height - wy
    @number_window = Window_MakeItemNumber.new(0, wy, wh)
    @number_window.viewport = @viewport
    @number_window.hide
    @number_window.set_handler(:ok,     method(:on_number_ok))
    @number_window.set_handler(:cancel, method(:on_number_cancel))
  end
  
  def create_gold_window
    @gold_window = Window_Gold.new
    @gold_window.viewport = @viewport
    @gold_window.x = @number_window.width
    @gold_window.y = @help_window.height
    @gold_window.width = Graphics.width - @number_window.width
  end
  
  def create_material_window
    wx = @number_window.width
    wy = @help_window.height + @gold_window.height
    ww = Graphics.width - wx
    wh = Graphics.height - wy
    @material_window = Window_MakeItemMaterial.new(wx, wy, ww, wh)
    @material_window.viewport = @viewport
    @number_window.material_window = @material_window
  end
  
  def create_list_window
    wy = @help_window.height
    wh = Graphics.height - wy
    @list_window = Window_MakeItemList.new(0, wy, wh, @page)
    @list_window.viewport = @viewport
    @list_window.help_window = @help_window
    @list_window.material_window = @material_window
    @list_window.activate
    @list_window.set_handler(:ok,     method(:on_list_ok))
    @list_window.set_handler(:cancel, method(:return_scene))
  end
  
  #启用物品列表
  def activate_list_window
    @list_window.money = money
    @list_window.show.activate
  end
  #--------------------------------------------------------------------------
  # ● 合成［決定］
  #--------------------------------------------------------------------------
  def on_list_ok
    @item = @list_window.item
    @list_window.hide
    @number_window.set(@item, max_buy, buying_price, currency_unit)
    @number_window.show.activate
  end
  #--------------------------------------------------------------------------
  # ● 個数入力［決定］
  #--------------------------------------------------------------------------
  def on_number_ok
    Sound.play_shop
    do_syntetic(@number_window.number)
    end_number_input
    @gold_window.refresh
  end
  #--------------------------------------------------------------------------
  # ● 個数入力［キャンセル］
  #--------------------------------------------------------------------------
  def on_number_cancel
    Sound.play_cancel
    end_number_input
  end
  #--------------------------------------------------------------------------
  # ● 合成の実行
  #--------------------------------------------------------------------------
  def do_syntetic(number)
    $game_party.lose_gold(number * buying_price)
    $game_party.gain_item(@item, number)
   
      @recipe = @list_window.recipe(@item)
      for i in 3...@recipe.size
        id   = @recipe[0]
        num  = @recipe[1]
        item = $data_items[id]
        $game_party.lose_item(item, num*number)
      end
  end
  #--------------------------------------------------------------------------
  # ● 個数入力の終了
  #--------------------------------------------------------------------------
  def end_number_input
    @number_window.hide
    activate_list_window
  end
  #--------------------------------------------------------------------------
  # ● 最大購入可能個数の取得
  #--------------------------------------------------------------------------
  def max_buy
    max = $game_party.max_item_number(@item) - $game_party.item_number(@item)
   
    @recipe = @list_window.recipe(@item)
      for i in 3...@recipe.size
        id   = @recipe[0]
        num  = @recipe[1]
        item = $data_items[id]
        
        if num > 0
          max_buf = $game_party.item_number(item)/num
        else
          max_buf = 999
        end
        max = [max, max_buf].min
      end
      
    buying_price == 0 ? max : [max, money / buying_price].min

  end
  #--------------------------------------------------------------------------
  # ● 所持金の取得
  #--------------------------------------------------------------------------
  def money
    @gold_window.value
  end
  #--------------------------------------------------------------------------
  # ● 通貨単位の取得
  #--------------------------------------------------------------------------
  def currency_unit
    @gold_window.currency_unit
  end
  #--------------------------------------------------------------------------
  # ● 合成費用の取得
  #--------------------------------------------------------------------------
  def buying_price
    @list_window.price(@item)
  end
end[/pre]