minatork01 amidakuji

amida.rb

#!/usr/bin/env ruby

num = ARGV[0].to_i

# header
header = 'A'
print ' '
headers = []
num.times do|i|
  headers << ([header.bytes.to_a[0] + i]).pack('U*')
end
print headers.join '   '
puts ' '

# body
(5 + rand(20)).times do|i|
  print ' '
  index = rand(num)
  num.times do|j|
    print '|'
    unless j == (num - 1)
      if j == index
        print '---'
      else
        print '   '
      end 
    end
  end
  puts ' '
end

# footer
footers = []
num.times do|i|
  footers << '   '
end
footers[rand(num)] = '!!!'
puts footers.join ' '