请教个窗口问题

wwwcctvty

1. class Window_ComposeUp < Window_Selectable
   
2.   attr_accessor :forge_item
   
3.   #--------------------------------------------------------------------------
   
4.   # ● 初始化对像
   
5.   #--------------------------------------------------------------------------
   
6.   def initialize(forge_item)
   
7.     super(180, 90, 130, 80)
   
8.     @column_max = 2
   
9.     @forge_item = []
   
10.     refresh
    
11.     self.index = 0
    
12.   end
    
13.   #--------------------------------------------------------------------------
    
14.   # ● 获取物品
    
15.   #--------------------------------------------------------------------------
    
16.   def item
    
17.     return @data[self.index]
    
18.   end
    
19.   #--------------------------------------------------------------------------  
    
20.   # ● 获取物品  
    
21.   #--------------------------------------------------------------------------  
    
22.   def item_number  
    
23.     return @data_number[self.index]
    
24.   end  
    
25.   #--------------------------------------------------------------------------
    
26.   # ● 刷新
    
27.   #--------------------------------------------------------------------------
    
28.   def refresh
    
29.     if self.contents != nil
    
30.       self.contents.dispose
    
31.       self.contents = nil
    
32.     end
    
33.     @data = []
    
34.     @data_number = []  
    
35.     @forge_item = $game_temp.forge
    
36.     for item_forge in @forge_item
    
37.       case item_forge[0]
    
38.       when 0
    
39.         item = $data_items[item_forge[1]]
    
40.       when 1
    
41.         item = $data_weapons[item_forge[1]]
    
42.       when 2
    
43.         item = $data_armors[item_forge[1]]
    
44.       end
    
45.       if (item != nil) and (item_forge[2] != 0)  
    
46.         @data.push(item)  
    
47.         @data_number.push(item_forge[2])  
    
48.       else  
    
49.         @data.delete(item)  
    
50.       end  
    
51.     end
    
52.     # 如果项目数不是 0 就生成位图、描绘全部项目
    
53.     @item_max = @data.size
    
54.     if @item_max > 0
    
55.       self.contents = Bitmap.new(width - 32, row_max * 55)
    
56.       for i in 0...@item_max
    
57.         draw_item(i)
    
58.       end
    
59.     end
    
60.   end
    
61.   #--------------------------------------------------------------------------
    
62.   # ● 描绘项目
    
63.   #     index : 项目标号
    
64.   #--------------------------------------------------------------------------
    
65.   def draw_item(index)
    
66.     item = @data[index]
    
67.     case item
    
68.     when RPG::Item
    
69.       number = $game_temp.forge[index][2]
    
70.     when RPG::Weapon
    
71.       number = $game_temp.forge[index][2]
    
72.     when RPG::Armor
    
73.       number = $game_temp.forge[index][2]
    
74.     end
    
75.     self.contents.font.color = normal_color
    
76.     x = 4 + index % @column_max * (60)
    
77.     y = 8
    
78.     rect = Rect.new(x, y, self.width / @column_max - 32, 32)
    
79.     self.contents.fill_rect(rect, Color.new(0, 0, 0, 0))
    
80.     bitmap = RPG::Cache.icon(item.icon_name)
    
81.     opacity = self.contents.font.color == normal_color ? 255 : 128
    
82.     self.contents.blt(x, y + 10, bitmap, Rect.new(0, 0, 24, 24), opacity)
    
83.     self.contents.draw_text(x + 10, y - 15, 24, 32, number.to_s, 2)
    
84.   end
    

复制代码

如何让这窗口中只能放二个物品而且数量为1？
请教大大们
{:2_258:}

wwwcctvty

那数量怎么控制呢