Class: Card

Inherits:
Object
  • Object
show all
Extended by:
T::Sig
Defined in:
lib/deck_of_cards_handler/card/card.rb

Overview

This represents a Playing Card. It has the following properties: a suit, a value and a position.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(suit:, value:, position: nil) ⇒ Card

Returns a new instance of Card.

Raises:

  • (ArgumentError) 


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# File 'lib/deck_of_cards_handler/card/card.rb', line 19

def initialize(suit:, value:, position: nil)
  raise ArgumentError, "Invalid suit" unless Card.suits.include?(suit)
  raise ArgumentError, "Invalid value" unless Card.values.include?(value)

  @suit = T.let(suit, String)
  @value = T.let(value, String)
  @position = T.let(position, T.nilable(Integer))
end

Instance Attribute Details

#position ⇒ Object

Returns the value of attribute position.



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# File 'lib/deck_of_cards_handler/card/card.rb', line 16

def position
  @position
end

#suit ⇒ Object

Returns the value of attribute suit.



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# File 'lib/deck_of_cards_handler/card/card.rb', line 10

def suit
  @suit
end

#value ⇒ Object

Returns the value of attribute value.



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# File 'lib/deck_of_cards_handler/card/card.rb', line 13

def value
  @value
end

Class Method Details

.black_suits ⇒ Object 



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# File 'lib/deck_of_cards_handler/card/card.rb', line 123

def black_suits
  %w[S C].freeze
end

.court_values ⇒ Object 



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# File 'lib/deck_of_cards_handler/card/card.rb', line 143

def court_values
  %w[J Q K].freeze
end

.even_values ⇒ Object 



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# File 'lib/deck_of_cards_handler/card/card.rb', line 138

def even_values
  %w[2 4 6 8 10 Q].freeze
end

.odd_values ⇒ Object 



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# File 'lib/deck_of_cards_handler/card/card.rb', line 133

def odd_values
  %w[A 3 5 7 9 J K].freeze
end

.red_suits ⇒ Object 



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# File 'lib/deck_of_cards_handler/card/card.rb', line 118

def red_suits
  %w[H D].freeze
end

.spot_values ⇒ Object 



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# File 'lib/deck_of_cards_handler/card/card.rb', line 148

def spot_values
  %w[A 2 3 4 5 6 7 8 9 10].freeze
end

.suits ⇒ Object 



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# File 'lib/deck_of_cards_handler/card/card.rb', line 113

def suits
  %w[C H S D].freeze
end

.values ⇒ Object 



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# File 'lib/deck_of_cards_handler/card/card.rb', line 128

def values
  %w[A 2 3 4 5 6 7 8 9 10 J Q K].freeze
end

Instance Method Details

#<=>(other) ⇒ Object 



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# File 'lib/deck_of_cards_handler/card/card.rb', line 105

def <=>(other)
  rank <=> other.rank
end

#==(other) ⇒ Object 



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# File 'lib/deck_of_cards_handler/card/card.rb', line 89

def ==(other)
  other.suit == suit && other.value == value
end

#black? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/deck_of_cards_handler/card/card.rb', line 39

def black?
  Card.black_suits.include?(suit)
end

#clubs? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/deck_of_cards_handler/card/card.rb', line 44

def clubs?
  suit == "C"
end

#color ⇒ Object 



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# File 'lib/deck_of_cards_handler/card/card.rb', line 29

def color
  red? ? "red" : "black"
end

#court? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/deck_of_cards_handler/card/card.rb', line 79

def court?
  Card.court_values.include?(value)
end

#diamonds? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/deck_of_cards_handler/card/card.rb', line 59

def diamonds?
  suit == "D"
end

#even? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/deck_of_cards_handler/card/card.rb', line 64

def even?
  Card.even_values.include?(value)
end

#hearts? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/deck_of_cards_handler/card/card.rb', line 49

def hearts?
  suit == "H"
end

#odd? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/deck_of_cards_handler/card/card.rb', line 69

def odd?
  Card.odd_values.include?(value)
end

#rank(low_ace: false) ⇒ Object 



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# File 'lib/deck_of_cards_handler/card/card.rb', line 94

def rank(low_ace: false)
  case value
  when "A" then low_ace ? 1 : 14
  when "J" then 11
  when "Q" then 12
  when "K" then 13
  else value.to_i
  end
end

#red? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/deck_of_cards_handler/card/card.rb', line 34

def red?
  Card.red_suits.include?(suit)
end

#spades? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/deck_of_cards_handler/card/card.rb', line 54

def spades?
  suit == "S"
end

#spot? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/deck_of_cards_handler/card/card.rb', line 74

def spot?
  Card.spot_values.include?(value)
end

#to_s ⇒ Object 



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# File 'lib/deck_of_cards_handler/card/card.rb', line 84

def to_s
  "#{value} of #{suit}"
end