使い方: 「ruby orz.rb」または「ruby orz.rb -s」

orz.rb

require 'curses'

$mode = ARGV[0] == "-s"
class Orz
  def initialize(x, y)
    @x = x
    @y = y
  end
  attr_accessor :x, :y
end
$orzs = []
$cnt = 0
def new_orz
  y = Math.sin($cnt) * 10 + 10 if $mode == true
  y = rand(23) if $mode == false
  $orzs << Orz.new(70, y)
  $cnt = $cnt + 0.2
end

Curses::init_screen
100.times {|cnt|
  Curses::clear
  $orzs = $orzs.select {|orz| orz.x > 0}
  $orzs.each {|orz|
    Curses::setpos(orz.y, orz.x)
    Curses::addstr("orz")
    orz.x = orz.x - 1
  }
  new_orz if (if $mode then true else cnt % 2 == 0 end)
  Curses::refresh
  sleep(0.1)
}
Curses::close_screen