Fixnum playing cards

ruby-talk
1

I've been playing with ruby's playinc cards,and to make life easy my
cards are 1..54, and I've been adding things to Fixnum directly [1].
I've not used a language which lets me redefine numbers before, so not
sure how much trouble I can get my self into :slight_smile:

Is this sane?

Douglas

[1] Code listing:

module PlayingCards
  
  def black?
    self > 26
  end
  
  def suit
    case self
      when 01..13; :hearts
      when 14..26; :dimonds
      when 27..39; :clubs
      when 40..52; :spades
      when 53..54; :joker
    end
  end
  
  def face
    return case n = (self - 1) % 13 + 1
      when 2..10; n.to_s.to_sym
      when 01; :Ace
      when 11; :Jack
      when 12; :Queen
      when 13; :King
    end unless self > 52
    
    return case self
      when 53; :Red
      when 54; :Black
    end unless self > 54
  end
  
  def card_name
    return "#{face} of #{suit}" unless self > 52
    return "#{face} #{suit}" unless self > 54
  end
  
end

class Fixnum
  include PlayingCards
end

cards = (1..54).to_a.sort_by{rand}

puts cards.collect{|card| card.card_name}

puts "\nYou've got card! It is the #{cards.pop.card_name}."

2

Douglas Livingstone ha scritto:

just a thing: you don't need to convert 1..54 to an array before you use sort_by, sort_by is available in Ranges too.

3

It looks like 53 (Red Joker) would be classified as black (53.black?
== true) since 53 > 26. Maybe change to:

  def black?
     self > 26 and self != 53
  end

Also, if we're defining black? why not define red? as well:

  def red?
    not black?
  end

Jacob Fugal

···

On 4/13/05, Douglas Livingstone <rampant@gmail.com> wrote:

[1] Code listing:

module PlayingCards

        def black?
                self > 26
        end

        # ...snip...
        def face
                # ...snip...
                return case self
                        when 53; :Red
                        when 54; :Black
                end unless self > 54
        end

        # ...snip...
end

4

Or even neater, change the range from 0..53, and make it [joker, cards,
joker]

(are there red and black jokers? thought the two were identical)

martin

···

Jacob Fugal <lukfugl@gmail.com> wrote:

It looks like 53 (Red Joker) would be classified as black (53.black?
== true) since 53 > 26. Maybe change to:

  def black?
     self > 26 and self != 53
  end

5

There are big and little jokers, at least, that are differentiated for
the purposes of certain games which are escaping me at the moment.
-Eliah.

···

On 4/13/05, Martin DeMello <martindemello@yahoo.com> wrote:

(are there red and black jokers? thought the two were identical)

6

I've had some packs of cards that had red and black jokers. I've never
differentiated between them in any games except bartok, but they're still
red and black.

Adelle.

···

On 4/13/05, Martin DeMello <martindemello@yahoo.com> wrote:
> (are there red and black jokers? thought the two were identical)