【求助帖】分页显示物品异常，个人无法修正 - Project1

#==============================================================================
# ■ Window_Item
#------------------------------------------------------------------------------
# 　物品画面、战斗画面、显示浏览物品的窗口。
#==============================================================================
class Window_Item < Window_Base
#--------------------------------------------------------------------------
# ● 定义实例变量
#--------------------------------------------------------------------------
attr_reader :index # 光标位置
attr_reader :help_window # 帮助窗口
#--------------------------------------------------------------------------
# ● 初始化对像
#--------------------------------------------------------------------------
def initialize
super(0, 64, 320, 416)
@column_max = 1
refresh
self.index = 0
# 战斗中的情况下将窗口移至中央并将其半透明化
if $game_temp.in_battle
self.y = 64
self.height = 256
self.back_opacity = 160
end
end
#--------------------------------------------------------------------------
# ● 获取物品
#--------------------------------------------------------------------------
def item
return @data[self.index]
end
#--------------------------------------------------------------------------
# ● 刷新
#--------------------------------------------------------------------------
def refresh
if self.contents != nil
self.contents.dispose
self.contents = nil
end
@data = []
# 添加物品
for i in 1...$data_items.size
if $game_party.item_number(i) > 0
(0...$game_party.item_number(i)).each{|j|@data.push($data_items[i])}
end
end
# 在战斗中以外添加武器、防具
unless $game_temp.in_battle
for i in 1...$data_weapons.size
if $game_party.weapon_number(i) > 0
(0...$game_party.weapon_number(i)).each{|j|@data.push($data_weapons[i])}
end
end
for i in 1...$data_armors.size
if $game_party.armor_number(i) > 0
(0...$game_party.armor_number(i)).each{|j|@data.push($data_armors[i])}
end
end
end
# 如果项目数不是 0 就生成位图、重新描绘全部项目
@item_max = @data.size
if @item_max > 0
self.contents = Bitmap.new(width - 32, row_max * 32)
for i in 0...@item_max
draw_item(i)
end
end
end
#--------------------------------------------------------------------------
# ● 描绘项目
# index : 项目编号
#--------------------------------------------------------------------------
def draw_item(index)
item = @data[index]
case item
when RPG::Item
number = $game_party.item_number(item.id)
when RPG::Weapon
number = $game_party.weapon_number(item.id)
when RPG::Armor
number = $game_party.armor_number(item.id)
end
if item.is_a?(RPG::Item) and
$game_party.item_can_use?(item.id)
self.contents.font.color = normal_color
else
self.contents.font.color = disabled_color
end
x = 4
y = index * 32
rect = Rect.new(x, y, self.width / @column_max - 32, 32)
self.contents.fill_rect(rect, Color.new(0, 0, 0, 0))
bitmap = RPG::Cache.icon(item.icon_name)
opacity = self.contents.font.color == normal_color ? 255 : 128
self.contents.blt(x, y + 4, bitmap, Rect.new(0, 0, 24, 24), opacity)
self.contents.draw_text(x + 28, y, 212, 32, item.name, 0)
end
#--------------------------------------------------------------------------
# ● 刷新帮助文本
#--------------------------------------------------------------------------
def update_help
now_page = self.index/self.page_row_max
word = self.item == nil ? "" : self.item.description
word += " Page: #{now_page+1}"
@help_window.set_text(word)
end
#--------------------------------------------------------------------------
# ● 设置光标的位置
# index : 新的光标位置
#--------------------------------------------------------------------------
def index=(index)
@index = index
# 刷新帮助文本 (update_help 定义了继承目标)
if self.active and @help_window != nil
update_help
end
# 刷新光标矩形
update_cursor_rect
end
#--------------------------------------------------------------------------
# ● 获取行数
#--------------------------------------------------------------------------
def row_max
# 由项目数和列数计算出行数
return (@item_max + @column_max - 1) / @column_max
end
#--------------------------------------------------------------------------
# ● 获取开头行
#--------------------------------------------------------------------------
def top_row
# 将窗口内容的传送源 Y 坐标、1 行的高 32 等分
return self.oy / 32
end
#--------------------------------------------------------------------------
# ● 设置开头行
# row : 显示开头的行
#--------------------------------------------------------------------------
def top_row=(row)
# row 未满 0 的场合更正为 0
if row < 0
row = 0
end
# row 超过 row_max - 1 的情况下更正为 row_max - 1
if row > row_max - 1
row = row_max - 1
end
# row 1 行高的 32 倍、窗口内容的传送源 Y 坐标
self.oy = row * 32
end
#--------------------------------------------------------------------------
# ● 获取 1 页可以显示的行数
#--------------------------------------------------------------------------
def page_row_max
# 窗口的高度，设置画面的高度减去 32 ，除以 1 行的高度 32
return (self.height - 32) / 32
end
#--------------------------------------------------------------------------
# ● 获取 1 页可以显示的项目数
#--------------------------------------------------------------------------
def page_item_max
# 将行数 page_row_max 乘上列数 @column_max
return page_row_max * @column_max
end
#--------------------------------------------------------------------------
# ● 帮助窗口的设置
# help_window : 新的帮助窗口
#--------------------------------------------------------------------------
def help_window=(help_window)
@help_window = help_window
# 刷新帮助文本 (update_help 定义了继承目标)
if self.active and @help_window != nil
update_help
end
end
#--------------------------------------------------------------------------
# ● 更新光标矩形
#--------------------------------------------------------------------------
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
# 计算光标的宽度
cursor_width = self.width / @column_max - 32
# 计算光标坐标
x = @index % @column_max * (cursor_width + 32)
y = @index / @column_max * 32 - self.oy
# 更新光标矩形
self.cursor_rect.set(x, y, cursor_width, 32)
end
#--------------------------------------------------------------------------
# ● 刷新画面
#--------------------------------------------------------------------------
def update
super
# 可以移动光标的情况下
if self.active and @item_max > 0 and @index >= 0
# 方向键下被按下的情况下
if Input.repeat?(Input::DOWN)
$game_system.se_play($data_system.cursor_se)
now_page = self.index/self.page_row_max
max_page = @item_max/self.page_row_max
max_page -= 1 if @item_max % self.page_row_max == 0
if now_page == max_page
d = @item_max%self.page_row_max
d = self.page_row_max if d == 0
else
d = self.page_row_max
end
@index += 1
@index -= now_page * self.page_row_max
@index %= d
@index += now_page * self.page_row_max
end
# 方向键上被按下的情况下
if Input.repeat?(Input::UP)
$game_system.se_play($data_system.cursor_se)
now_page = self.index/self.page_row_max
max_page = @item_max/self.page_row_max
max_page -= 1 if @item_max % self.page_row_max == 0
d = nil
if now_page == max_page
d = @item_max%self.page_row_max
d = self.page_row_max if d == 0
else
d = self.page_row_max
end
@index -= 1
@index = d - 1 if @index < 0
@index -= now_page * self.page_row_max
@index %= d
@index += now_page * self.page_row_max
end
# 方向键右被按下的情况下
if Input.repeat?(Input::RIGHT) or Input.repeat?(Input::R)
$game_system.se_play($data_system.cursor_se)
now_page = self.index/self.page_row_max
max_page = @item_max/self.page_row_max
max_page -= 1 if @item_max % self.page_row_max == 0
now_page += 1
now_page = 0 if now_page > max_page
@index = 0
@index = now_page * self.page_row_max
self.top_row = @index
end
# 方向键左被按下的情况下
if Input.repeat?(Input::LEFT) or Input.repeat?(Input::L)
$game_system.se_play($data_system.cursor_se)
now_page = self.index/self.page_row_max
max_page = @item_max/self.page_row_max
max_page -= 1 if @item_max % self.page_row_max == 0
now_page -= 1
now_page = max_page if now_page == -1
@index = 0
@index = now_page * self.page_row_max
self.top_row = @index
end
end
# 刷新帮助文本 (update_help 定义了继承目标)
if self.active and @help_window != nil
update_help
end
# 刷新光标矩形
update_cursor_rect
end
end

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