blackjack OOP

blackjack_oop_refactor.rb

require 'pry'

class Game

  def initialize
    puts "\nWELCOME to BLACKJACK!\n"
    Deck.new
  end

  def deal_cards
    2.times{@player << @deck.pop}
    2.times{@dealer << @deck.pop}
    score(@player)
  end

  def display_cards(someone)
    if someone == @player
      puts "Player's hand: "
      puts @player
      puts "Player's score is #{score(@player)}"
      still_playing
    else
      score(@dealer)
      puts "Dealer's hand: "
      puts @dealer
    end
  end

  def dealers_turn
      display_cards(@dealer)
    #score(@dealer)
      puts "Dealer's score: #{score(@dealer)}"
      if score(@dealer) < 17
        hit(@dealer)
        dealers_turn
      elsif score(@dealer) >= 17 && score(@dealer) <= 21
        final_results
      elsif score(@dealer) > 21
        puts "Dealer busts- you win!"
      end
  end

  def still_playing
    if score(@player) > 21
      puts 'Busted! Game over.'
      return nil
    end
    puts ''
    puts "Hit or Stay (h/s): "
    input = gets.chomp
    if input == 'h'
      hit(@player)
    elsif input == 's'
      dealers_turn
    else 
      puts "invalid input"
      still_playing
    end
  end

  def hit(someone)
    someone << @deck.pop
    score(someone)
    display_cards(someone)
  end

  def score(someone)
      hand_score = 0
      has_ace = false

      someone.each do |card|
        card = card.chop
        if card == 'J' || card == 'Q' || card == 'K'
          hand_score += 10
        elsif card == 'A'
          has_ace = true
          hand_score += 1
        else
          hand_score += card.to_i
        end
      end
      if hand_score <= 11 && has_ace
        hand_score += 10
      end
      return hand_score
      display_cards
    end

    def final_results
      puts ''
      puts "Player's score: #{score(@player)}"
      puts "Dealer's score: #{score(@dealer)}"
      if score(@dealer) > score(@player)
        puts "Dealer wins!"
      elsif score(@player) > score(@dealer)
        puts "You win!"
      else
        puts "Tie!"
      end
    return nil
    end

  

  class Card < Game
    def initialize(value, suit)
      @value = value
      @suit = suit
    end
  end


  class Deck < Game
    SUITS = ['♠', '♣', '♥', '♦']
    VALUES = ['2', '3', '4', '5', '6', '7', '8', '9', '10', 'J', 'Q', 'K', 'A']

    def initialize
      @deck = []
      @dealer = []
      @player = []
      build_deck
      deal_cards
      display_cards(@player)
    end

    def build_deck
      SUITS.each do |suit|
        VALUES.each do |value|
          @deck.push(value + suit)
        end
      end
      @deck.shuffle!    
    end

    def pop
      @deck.pop
    end
  end
end

blackjack = Game.new