「数值输入处理」输入负数

taroxd

[pre lang="ruby" line="1"]
#--------------------------------------------------------------------------
# ● 数值输入处理可以输入负数
#--------------------------------------------------------------------------

module Taroxd
  NegativeInput = Object.new
end

class Window_NumberInput < Window_Base
  #--------------------------------------------------------------------------
  # ● 开始输入的处理
  #--------------------------------------------------------------------------
  def start
    @digits_max = $game_message.num_input_digits_max + 1
    num = $game_variables[$game_message.num_input_variable_id]
    max_num = 10**(@digits_max - 1) - 1
    num = [[num, max_num].min, -max_num].max
    @number = sprintf("%+0*d", @digits_max, num)
    @index = 0
    update_placement
    create_contents
    refresh
    open
    activate
  end
  #--------------------------------------------------------------------------
  # ● 处理数字的更改
  #--------------------------------------------------------------------------
  def process_digit_change
    return unless active
    if Input.repeat?(:UP) || Input.repeat?(:DOWN)
      Sound.play_cursor
      if @index == 0
        @number[0] = @number.start_with?('+') ? '-' : '+'
      else
        n = @number[@index].to_i
        @number[@index] = ((n + (Input.repeat?(:UP) ? 1 : -1)) % 10).to_s
      end
      refresh
    end
  end
  #--------------------------------------------------------------------------
  # ● 刷新
  #--------------------------------------------------------------------------
  def refresh
    contents.clear
    change_color(normal_color)
    @digits_max.times do |i|
      rect = item_rect(i)
      rect.x += 1
      draw_text(rect, @number, 1)
    end
  end
  #--------------------------------------------------------------------------
  # ● 按下确定键时的处理
  #--------------------------------------------------------------------------
  def process_ok
    Sound.play_ok
    $game_variables[$game_message.num_input_variable_id] = @number.to_i
    deactivate
    close
  end
end
[/pre]