#!/usr/bin/env ruby -w
# public domain

class ASCIIAnim
  def initialize(frames, repeat = 1)
    @frames = frames
    @repeat = repeat
  end

  def each
    @repeat.times { @frames.each { |f| yield f } }
  end
end

ANIMATIONS = [
  ASCIIAnim.new(["\\o\\", "|o|", "/o/", "|o|"], 3),
  ASCIIAnim.new([".o|", ".o.", "|o.", "|o|"]),
  ASCIIAnim.new([".o.", ".ov", ".oV", ".o."]),
  ASCIIAnim.new(["\\o/", "-o-", ".o.", "-o-", "\\o/", "|o|"], 2),
  ASCIIAnim.new(["\\o/", "-o-", "-o ", "-o-", " o-", "-o-", "\\o/", "|o|"]),
]

while true do
  anim = ANIMATIONS[rand(ANIMATIONS.length)]
  anim.each { |f|
    print f + "\r"
    $stdout.flush
    sleep(0.5)
  }
end