class Card

Constants

FACE_TO_NUM

Attributes

rank[R]

suit[R]

Public Class Methods

new(str) click to toggle source

# File lib/rpoker/card.rb, line 12
def initialize(str)
  validate!(str)

  chars = str.chars
  @rank = chars.first.upcase
  @suit = chars.last.downcase
end

Public Instance Methods

face?() click to toggle source

# File lib/rpoker/card.rb, line 24
def face?
  faces.include? rank
end

to_i() click to toggle source

# File lib/rpoker/card.rb, line 28
def to_i
  face? ? FACE_TO_NUM[rank] : rank.to_i
end

to_s() click to toggle source

# File lib/rpoker/card.rb, line 20
def to_s
  "#{rank}#{suit}"
end

Private Instance Methods

faces() click to toggle source

# File lib/rpoker/card.rb, line 57
def faces
  %w(T J Q K A)
end

numerics() click to toggle source

# File lib/rpoker/card.rb, line 53
def numerics
  %w(2 3 4 5 6 7 8 9)
end

rank?(str) click to toggle source

# File lib/rpoker/card.rb, line 41
def rank?(str)
  ranks.include? str.upcase
end

ranks() click to toggle source

# File lib/rpoker/card.rb, line 49
def ranks
  numerics + faces
end

suit?(str) click to toggle source

# File lib/rpoker/card.rb, line 45
def suit?(str)
  suits.include? str.downcase
end

suits() click to toggle source

# File lib/rpoker/card.rb, line 61
def suits
  %w(s c d h)
end

validate!(str) click to toggle source

# File lib/rpoker/card.rb, line 34
def validate!(str)
  raise ArgumentError, 'Input must be a string'       unless str.is_a? String
  raise ArgumentError, 'Wrong number of characters'   unless str.length == 2
  raise ArgumentError, 'Input must start with a rank' unless rank?(str[0])
  raise ArgumentError, 'Input must end with a suit'   unless suit?(str[1])
end