求脚本window_selectable的原版代码 - Project1

#==============================================================================
# ■ Window_Selectable
#------------------------------------------------------------------------------
# 　拥有光标的移动以及滚动功能的窗口类。
#==============================================================================
class Window_Selectable < Window_Base
#--------------------------------------------------------------------------
# ● 定义实例变量
#--------------------------------------------------------------------------
attr_reader :item_max # 选项数
attr_reader :column_max # 行数
attr_reader :index # 光标位置
attr_reader :help_window # 帮助窗口
#--------------------------------------------------------------------------
# ● 初始化对像
# x : 窗口 X 座标
# y : 窗口 Y 座标
# width : 窗口宽度
# height : 窗口高度
# spacing : 横向排列时栏间空格
#--------------------------------------------------------------------------
def initialize(x, y, width, height, spacing = 32)
@item_max = 1
@column_max = 1
@index = -1
@spacing = spacing
super(x, y, width, height)
end
#--------------------------------------------------------------------------
# ● 生成窗口内容
#--------------------------------------------------------------------------
def create_contents
self.contents.dispose
self.contents = Bitmap.new(width - 32, [height - 32, row_max * WLH].max)
end
#--------------------------------------------------------------------------
# ● 设置光标位置
# index : 新光标位置
#--------------------------------------------------------------------------
def index=(index)
@index = index
update_cursor
call_update_help
end
#--------------------------------------------------------------------------
# ● 计算行数
#--------------------------------------------------------------------------
def row_max
return (@item_max + @column_max - 1) / @column_max
end
#--------------------------------------------------------------------------
# ● 获取首行
#--------------------------------------------------------------------------
def top_row
return self.oy / WLH
end
#--------------------------------------------------------------------------
# ● 设置首行
# row : 显示在最上的行
#--------------------------------------------------------------------------
def top_row=(row)
row = 0 if row < 0
row = row_max - 1 if row > row_max - 1
self.oy = row * WLH
end
#--------------------------------------------------------------------------
# ● 获取一页能显示的行数
#--------------------------------------------------------------------------
def page_row_max
return (self.height - 32) / WLH
end
#--------------------------------------------------------------------------
# ● 获取一页能显示的选项
#--------------------------------------------------------------------------
def page_item_max
return page_row_max * @column_max
end
#--------------------------------------------------------------------------
# ● 获取末行
#--------------------------------------------------------------------------
def bottom_row
return top_row + page_row_max - 1
end
#--------------------------------------------------------------------------
# ● 设置末行
# row : 显示在最底的行
#--------------------------------------------------------------------------
def bottom_row=(row)
self.top_row = row - (page_row_max - 1)
end
#--------------------------------------------------------------------------
# ● 设置选项矩形
# index : 项目编号
#--------------------------------------------------------------------------
def item_rect(index)
rect = Rect.new(0, 0, 0, 0)
rect.width = (contents.width + @spacing) / @column_max - @spacing
rect.height = WLH
rect.x = index % @column_max * (rect.width + @spacing)
rect.y = index / @column_max * WLH
return rect
end
#--------------------------------------------------------------------------
# ● 设置帮助窗口
# help_window : 新帮助窗口
#--------------------------------------------------------------------------
def help_window=(help_window)
@help_window = help_window
call_update_help
end
#--------------------------------------------------------------------------
# ● 判断光标是否能够移动
#--------------------------------------------------------------------------
def cursor_movable?
return false if (not visible or not active)
return false if (index < 0 or index > @item_max or @item_max == 0)
return false if (@opening or @closing)
return true
end
#--------------------------------------------------------------------------
# ● 光标下移
# wrap : 允许循环
#--------------------------------------------------------------------------
def cursor_down(wrap = false)
if (@index < @item_max - @column_max) or (wrap and @column_max == 1)
@index = (@index + @column_max) % @item_max
end
end
#--------------------------------------------------------------------------
# ● 光标上移
# wrap : 允许循环
#--------------------------------------------------------------------------
def cursor_up(wrap = false)
if (@index >= @column_max) or (wrap and @column_max == 1)
@index = (@index - @column_max + @item_max) % @item_max
end
end
#--------------------------------------------------------------------------
# ● 光标右移
# wrap : 允许循环
#--------------------------------------------------------------------------
def cursor_right(wrap = false)
if (@column_max >= 2) and
(@index < @item_max - 1 or (wrap and page_row_max == 1))
@index = (@index + 1) % @item_max
end
end
#--------------------------------------------------------------------------
# ● 光标左移
# wrap : 允许循环
#--------------------------------------------------------------------------
def cursor_left(wrap = false)
if (@column_max >= 2) and
(@index > 0 or (wrap and page_row_max == 1))
@index = (@index - 1 + @item_max) % @item_max
end
end
#--------------------------------------------------------------------------
# ● 光标移至下一页
#--------------------------------------------------------------------------
def cursor_pagedown
if top_row + page_row_max < row_max
@index = [@index + page_item_max, @item_max - 1].min
self.top_row += page_row_max
end
end
#--------------------------------------------------------------------------
# ● 光标移至上一页
#--------------------------------------------------------------------------
def cursor_pageup
if top_row > 0
@index = [@index - page_item_max, 0].max
self.top_row -= page_row_max
end
end
#--------------------------------------------------------------------------
# ● 更新画面
#--------------------------------------------------------------------------
def update
super
if cursor_movable?
last_index = @index
if Input.repeat?(Input::DOWN)
cursor_down(Input.trigger?(Input::DOWN))
end
if Input.repeat?(Input::UP)
cursor_up(Input.trigger?(Input::UP))
end
if Input.repeat?(Input::RIGHT)
cursor_right(Input.trigger?(Input::RIGHT))
end
if Input.repeat?(Input::LEFT)
cursor_left(Input.trigger?(Input::LEFT))
end
if Input.repeat?(Input::R)
cursor_pagedown
end
if Input.repeat?(Input::L)
cursor_pageup
end
if @index != last_index
Sound.play_cursor
end
end
update_cursor
call_update_help
end
#--------------------------------------------------------------------------
# ● 更新光标
#--------------------------------------------------------------------------
def update_cursor
if @index < 0 # 当光标位置小于0
self.cursor_rect.empty # 隐藏光标
else # 当光标位置为0或大于
row = @index / @column_max # 获取当前行
if row < top_row # 若先于首行
self.top_row = row # 向上滚动
end
if row > bottom_row # 若後于末行
self.bottom_row = row # 向下滚动
end
rect = item_rect(@index) # 获取所选项目矩形
rect.y -= self.oy # 设矩形为滚动位置
self.cursor_rect = rect # 更新光标矩形
end
end
#--------------------------------------------------------------------------
# ● 呼叫更新帮助窗口
#--------------------------------------------------------------------------
def call_update_help
if self.active and @help_window != nil
update_help
end
end
#--------------------------------------------------------------------------
# ● 更新帮助窗口（子类定义）
#--------------------------------------------------------------------------
def update_help
end
end

复制代码