zundoko.rb

# slightly modified from:
#   @Kta-M リズムに乗ってズンドコキヨシ♪ with Ruby 
#   https://qiita.com/Kta-M/items/c5ea66ddd0e4123a298c

def zundoko
  l = 1
  loop do
    n = rand(32)
    s = ("%05b" % n).gsub(/0/, 'ズン').gsub(/1/, 'ドコ')
    r = [0, 1.0, 0, 0.5, 0, 0.5, 0, 0.5, 0.25, 0.25]
    print ("%3d" % l) + ' '
    print_with_rythm s, r

    if n == 1
      print ' '
      print_with_rythm "キ・ヨ・シ！", [0, 0.25, 0, 0.25, 0, 1.0]
      print "\n"
      break
    else
      sleep(0.75)
    end

    puts
    l += 1
  end
end

def print_with_rythm(s, r)
  s.split(//).zip(r).each do |c, w|
    print c
    sleep(w)
  end
end

zundoko