Class: Rb21::Hand

Inherits:
Object
  • Object
show all
Defined in:
lib/rb21/hand.rb

Constant Summary collapse

LIMIT = 
21

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Hand

Returns a new instance of Hand.



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# File 'lib/rb21/hand.rb', line 8

def initialize
  @cards = []
end

Instance Attribute Details

#cards ⇒ Object (readonly)

Returns the value of attribute cards.



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# File 'lib/rb21/hand.rb', line 6

def cards
  @cards
end

Instance Method Details

#blackjack? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rb21/hand.rb', line 39

def blackjack?
  names = @cards.map(&:name)
  @cards.size == 2 &&
    names.include?(Card::ACE) &&
    (names & Card::TEN_VALUES).size.positive?
end

#busted? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rb21/hand.rb', line 35

def busted?
  value > LIMIT
end

#clear ⇒ Object 



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# File 'lib/rb21/hand.rb', line 18

def clear
  @cards.clear
end

#receive(card) ⇒ Object 



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# File 'lib/rb21/hand.rb', line 12

def receive(card)
  @cards << card
  @cards.sort_by! { |c| c.value.size }
  card
end

#value ⇒ Object 



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# File 'lib/rb21/hand.rb', line 22

def value
  val = 0
  @cards.map { |card| card.value.sort.reverse }.each do |possible_values|
    possible_values.each_with_index do |possible_value, i|
      if i + 1 == possible_values.size || val + possible_value <= LIMIT
        val += possible_value
        break
      end
    end
  end
  val
end