thatrubylove

Card = Struct.new(:rank, :suit) do
  def to_s; "#{rank} of #{suit}"; end
end

thatrubylove

require 'values'
require 'rank'

class Card < Value.new(:rank, :suit)
  def suit
    (@suit || 'naked').to_sym
  end

  def to_s
    "#{rank.to_s} of #{suit.to_s.capitalize}"

thatrubylove

A _Deck_ of _Card_s is used to play many different types of games.

_Card_s have a _Rank_ and a _Suit_ and depending on the rules of the game,
these are used to score. Also, many games require a _shoe size_, which
specifies how many standard _Deck_s of _Card_s to include in the generated
_Deck_.

thatrubylove

class Deck
  attr_reader :cards

  def initialize(show_size=1)
    @cards = build_deck*shoe_size
  end
end

thatrubylove

Rank = Struct.new(:rank, :value) do
  def to_s; rank; end
end

Card = Struct.new(:rank, :suit) do
  def to_s; "#{rank} of #{suit}"; end
end

thatrubylove

Deck.new.cards[24].to_s #=> "seven of hearts"

thatrubylove

class Deck
  SUITS = %w(hearts clubs spades diamonds)
  RANKS = %w(ace two three four five six seven
             eight nine ten jack queen king)
...
end

thatrubylove

class Deck
...

protected

  def all_ranks
    RANKS.map.with_index {|rank, value| Rank.new(rank, value) }
  end
end

thatrubylove

class Deck
...

protected

  def build_deck
    all_ranks.flat_map {|rank| SUITS.flat_map {|suit| Card.new(rank,suit) } }
  end

...

thatrubylove

Rank = Struct.new(:rank, :value) do
  def to_s; rank; end
end

Card = Struct.new(:rank, :suit) do
  def to_s; "#{rank} of #{suit}"; end
end

class Deck
  SUITS = %w(hearts clubs spades diamonds)