Class: Cribbage::Card

Inherits:
Object
  • Object
show all
Defined in:
lib/cribbage.rb

Overview

AH 5C 6D 7S 8C QD 9C

Constant Summary collapse

INDEX = 
%w(A 2 3 4 5 6 7 8 9 10 J Q K)
SUITS = 
{'H' => '♥', 'D' => '♦', 'C' => '♣', 'S' => '♠'}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(str) ⇒ Card

Returns a new instance of Card.



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# File 'lib/cribbage.rb', line 28

def initialize(str)
  raise "String cannot be blank!" if str.nil?
  raise "Must be a string!" unless str.is_a?(String)
  raise "Invalid length" if (str.size < 2 or str.size > 3)

  @value = self.compute_value(str.chop)
  @face_value = str.chop.upcase
  raise "Invalid face value" unless INDEX.include?(@face_value)
  @index = INDEX.index(@face_value)
  @suit  = str[-1].upcase
  @card_str = str
end

Instance Attribute Details

#card_str ⇒ Object

Returns the value of attribute card_str.



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# File 'lib/cribbage.rb', line 22

def card_str
  @card_str
end

#face_value ⇒ Object

Returns the value of attribute face_value.



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# File 'lib/cribbage.rb', line 20

def face_value
  @face_value
end

#index ⇒ Object

index in a hand. Ie A = 0,



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# File 'lib/cribbage.rb', line 23

def index
  @index
end

#suit ⇒ Object

Returns the value of attribute suit.



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# File 'lib/cribbage.rb', line 21

def suit
  @suit
end

#value ⇒ Object

Str format: 

"5h" = five of hearts
"AD" = ace of diamonds
"10c" = ten of clubs



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# File 'lib/cribbage.rb', line 19

def value
  @value
end

Instance Method Details

#compute_value(char) ⇒ Object 



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# File 'lib/cribbage.rb', line 45

def compute_value(char)
  return 1 if char.upcase=='A'
  return 10 if %w(J Q K).include?(char.upcase)
  if char.to_i > 0 and char.to_i <= 10
    return char.to_i
  end
  raise "Could not compute value of #{char}"
end

#to_s ⇒ Object 



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# File 'lib/cribbage.rb', line 41

def to_s
  "[#{@face_value}#{SUITS[@suit]}]"
end