关于装备候选区的一些疑问 - Project1

# 生成位图、描绘全部项目
@item_max = @data.size
self.contents = Bitmap.new(width - 32, row_max * 40)
for i in 0...@item_max-1
draw_item(i)
end
end
#--------------------------------------------------------------------------
# ● 项目的描绘
# index : 项目符号
#--------------------------------------------------------------------------
def draw_item(index)
item = @data[index]
x = 4 + index % 2 * (288 + 32)
y = index / 2 * 32
case item
when RPG::Weapon
number = $game_party.weapon_number(item.id)
when RPG::Armor
number = $game_party.armor_number(item.id)
end
bitmap = RPG::Cache.icon(item.icon_name)
self.contents.blt(x, y + 4, bitmap, Rect.new(0, 0, 24, 24))
self.contents.font.color = normal_color
self.contents.draw_text(x + 28, y, 212, 32, item.name, 0)
self.contents.draw_text(x + 240, y, 16, 32, ":", 1)
self.contents.draw_text(x + 256, y, 24, 32, number.to_s, 2)
end
#--------------------------------------------------------------------------
# ● 刷新帮助文本
#--------------------------------------------------------------------------
def update_help
@help_window.set_text(self.item == nil ? "" : self.item.description)
end
end

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# 生成位图、描绘全部项目
@item_max = @data.size
self.contents = Bitmap.new(width - 32, row_max * 40)
for i in 0...@item_max-1
draw_item(i)
end
end#--------------------------------------------------------------------------
# ● 项目的描绘
# index : 项目符号
#--------------------------------------------------------------------------
def draw_item(index)
item = @data[index]
x = 4 + index % 2 * (288 + 32)
y = index / 2 * 40
case item
when RPG::Weapon
number = $game_party.weapon_number(item.id)
when RPG::Armor
number = $game_party.armor_number(item.id)
end
bitmap = RPG::Cache.icon(item.icon_name)
self.contents.blt(x, y + 4, bitmap, Rect.new(0, 0, 24, 24))
self.contents.font.color = normal_color
self.contents.draw_text(x + 28+6, y, 212, 32, item.name, 0)
self.contents.draw_text(x + 240, y, 16, 32, ":", 1)
self.contents.draw_text(x + 256, y, 24, 32, number.to_s, 2)
end
#--------------------------------------------------------------------------
# ● 刷新帮助文本
#--------------------------------------------------------------------------
def update_help
@help_window.set_text(self.item == nil ? "" : self.item.description)
end
#--------------------------------------------------------------------------
# ● 更新光标举行
#--------------------------------------------------------------------------
def update_cursor_rect
# 光标位置不满 0 的情况下
if @index < 0
self.cursor_rect.empty
return
end
# 获取当前的行
row = @index / @column_max
# 当前行被显示开头行前面的情况下
if row < self.top_row
# 从当前行向开头行滚动
self.top_row = row
end
# 当前行被显示末尾行之后的情况下
if row > self.top_row + (self.page_row_max - 1)
# 从当前行向末尾滚动
self.top_row = row - (self.page_row_max - 1)
end
# 计算光标的宽
cursor_width = self.width / @column_max - 32
# 计算光标坐标
x = @index % @column_max * (cursor_width + 32)
y = @index / @column_max * 40 - self.oy
# 更新国标矩形
self.cursor_rect.set(x, y, cursor_width, 40)
end
end

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