hitode.rb

#! /usr/bin/ruby
# generate hitode png
# 2009.01.05

# this script needs pureimage
# http://cappuccino.jp/keisuken/

require 'optparse'
require 'pureimage'

module PureImage
  class Image
    def plot(x, y, c)
      red   = (c >> 16) & 0xff
      green = (c >> 8) & 0xff
      blue  = c & 0xff
      col = get(x, y)
      set(x, y, [red, green, blue, col[3]])
    end
  end
end

class Hitode
  include PureImage

  WHITE = 0xffffff
  BLACK = 0x000000
  WINERED = 0x800000
  PINK = 0xef8284

  def initialize(id)
    @id = id
    @size = 240
    raise "out of order(0 ~ 999)" unless (0..999).include? @id
    @image = PureImage::Image.new(16, 16)
    self
  end

  attr_accessor :id
  attr_accessor :size

  def draw
    draw_base
    draw_id
    self
  end

  def save(filename)
    @outimage = PureImage::Image.new(@size, @size)
    0.upto(@size) do |x|
      0.upto(@size) do |y|
        @outimage.set(x, y, @image.get(x*16/@size, y*16/@size))
      end
    end
    PureImage::PNGIO.new.save(@outimage, filename)
    self
  end

  protected

  def draw_base
    @image.fill_rect(0, 0, 16, 16, WHITE)
    @image.draw_line(7, 0, 9, 0, WINERED)

    @image.plot(6, 1, WINERED)
    @image.plot(10, 1, WINERED)
    @image.plot(5, 2, WINERED)
    @image.plot(10, 2, WINERED)
    @image.plot(4, 3, WINERED)
    @image.plot(10, 3, WINERED)
    @image.plot(4, 4, WINERED)
    @image.draw_line(11, 4, 14, 4, WINERED)
    @image.draw_line(1, 5, 3, 5, WINERED)
    @image.plot(15, 5, WINERED)
    @image.draw_line(0, 6, 0, 9, WINERED)
    @image.draw_line(1, 10, 1, 12, WINERED)
    @image.draw_line(0, 13, 0, 14, WINERED)
    @image.draw_line(1, 15, 4, 15, WINERED)
    @image.plot(5, 14, WINERED)
    @image.draw_line(6, 13, 7, 13, WINERED)
    @image.plot(8, 14, WINERED)
    @image.draw_line(9, 15, 14, 15, WINERED)
    @image.plot(15, 14, WINERED)
    @image.plot(14, 13, WINERED)
    @image.draw_line(13, 10, 13, 12, WINERED)
    @image.plot(14, 9, WINERED)
    @image.draw_line(15, 5, 15, 8, WINERED)

    @image.draw_line(7, 1, 9, 1, PINK)
    @image.draw_line(6, 2, 9, 2, PINK)
    @image.draw_line(5, 3, 9, 3, PINK)
    @image.draw_line(5, 4, 10, 4, PINK)
    @image.draw_line(4, 5, 14, 5, PINK)
    @image.draw_line(1, 6, 14, 6, PINK)
    @image.draw_line(1, 7, 14, 7, PINK)
    @image.draw_line(1, 8, 14, 8, PINK)
    @image.draw_line(1, 9, 13, 9, PINK)
    @image.draw_line(2, 10, 12, 10, PINK)
    @image.draw_line(2, 11, 12, 11, PINK)
    @image.draw_line(2, 12, 12, 12, PINK)
    @image.draw_line(1, 13, 5, 13, PINK)
    @image.draw_line(8, 13, 13, 13, PINK)
    @image.draw_line(1, 14, 4, 14, PINK)
    @image.draw_line(9, 14, 14, 14, PINK)
  end

  def draw_id
    x = 2
    y = 6
    offset = 4
    (@id + 1000).to_s.split('')[1..-1].each do |n|
      draw_number(x, y, n)
      x += offset
    end
  end

  def draw_number(x, y, n)
    case n
    when '0'
      @image.draw_line(x, y, x+2, y, BLACK)
      @image.draw_line(x, y+4, x+2, y+4, BLACK)
      @image.draw_line(x, y, x, y+4, BLACK)
      @image.draw_line(x+2, y, x+2, y+4, BLACK)
    when '1'
      @image.draw_line(x+1, y, x+1, y+4, BLACK)
      @image.plot(x, y+1, BLACK)
      @image.draw_line(x, y+4, x+2, y+4, BLACK)
    when '2'
      @image.draw_line(x, y, x+2, y, BLACK)
      @image.draw_line(x+2, y, x+2, y+2, BLACK)
      @image.draw_line(x, y+2, x+2, y+2, BLACK)
      @image.draw_line(x, y+2, x, y+4, BLACK)
      @image.draw_line(x, y+4, x+2, y+4, BLACK)
    when '3'
      @image.draw_line(x, y, x+2, y, BLACK)
      @image.draw_line(x, y+2, x+2, y+2, BLACK)
      @image.draw_line(x, y+4, x+2, y+4, BLACK)
      @image.draw_line(x+2, y, x+2, y+4, BLACK)
    when '4'
      @image.draw_line(x, y+1, x, y+3, BLACK)
      @image.draw_line(x+1, y, x+1, y+4, BLACK)
      @image.plot(x+2, y+3, BLACK)
    when '5'
      @image.draw_line(x, y, x+2, y, BLACK)
      @image.draw_line(x, y, x, y+2, BLACK)
      @image.draw_line(x, y+2, x+2, y+2, BLACK)
      @image.draw_line(x+2, y+2, x+2, y+4, BLACK)
      @image.draw_line(x, y+4, x+2, y+4, BLACK)
    when '6'
      @image.draw_line(x, y, x+2, y, BLACK)
      @image.draw_line(x, y+2, x+2, y+2, BLACK)
      @image.draw_line(x, y+4, x+2, y+4, BLACK)
      @image.draw_line(x, y, x, y+4, BLACK)
      @image.draw_line(x+2, y+2, x+2, y+4, BLACK)
    when '7'
      @image.draw_line(x, y, x+2, y, BLACK)
      @image.draw_line(x+2, y, x+2, y+4, BLACK)
    when '8'
      @image.draw_line(x, y, x+2, y, BLACK)
      @image.draw_line(x, y+2, x+2, y+2, BLACK)
      @image.draw_line(x, y+4, x+2, y+4, BLACK)
      @image.draw_line(x, y, x, y+4, BLACK)
      @image.draw_line(x+2, y, x+2, y+4, BLACK)
    when '9'
      @image.draw_line(x, y, x+2, y, BLACK)
      @image.draw_line(x, y+4, x+2, y+4, BLACK)
      @image.draw_line(x, y, x, y+2, BLACK)
      @image.draw_line(x+2, y, x+2, y+4, BLACK)
      @image.draw_line(x, y+2, x+2, y+2, BLACK)
    end

  end
end

if $0 == __FILE__
  setting = { }
  opt = OptionParser.new
  opt.on('-o <file>', '--output <file>'){
    |v| setting[:out] = v
  }
  opt.on('-s <px>', '--size <px>'){
    |v| setting[:size] = v.to_i
  }
  opt.banner += " id"
  opt.parse!(ARGV)
  
  if ARGV.size != 1 or not ARGV.first =~ /^\d+$/
    puts opt.banner
    exit(1)
  end

  id = ARGV.first.to_i
  out = nil
  if setting[:out]
    out = setting[:out]
  else
    out = "hitode#{(id+1000).to_s[1..-1]}.png"
  end
  
  hitode = Hitode.new(id).draw
  hitode.size = setting[:size] if setting[:size]
  hitode.save(out)
end