From: Mark Slagell <ms@...>
Date: 2001-02-26T12:21:27+09:00
Subject: [ruby-talk:11560] Re: Bottles of Beer finally in Ruby

Okay, my turn.

============================================================================

class BeerShelf
  def initialize( bottles )
    @stock = bottles
  end

  def take_one_down
    @stock -= 1 if @stock > 0
  end

  def inventory
    if got_beer?
      "#{@stock} bottle" + ((@stock==1) ? "" : "s") + " of beer"
    else
      "No more bottles of beer"
    end
  end

  def got_beer?
    @stock > 0
  end
end

shelf = BeerShelf.new( 100 )
while shelf.got_beer?
  puts shelf.inventory + " on the wall,"
  puts shelf.inventory + ","
  shelf.take_one_down
  puts "You take one down, pass it around,"
  puts shelf.inventory + " on the wall."
  puts
end
puts "*burp!*"
============================================================================

 -- Mark