Blackjack

Spec, write out the requirements

-Player and the Dealer (computer)
-Deck, ability to shuffle
-Deal a hand, take a card from the deck deal it to the dealer, then the player etc.
-Card can be face down or up
-Ace can have value of 1 or 11
-Stand, Hit (meaning take a card)
-Dealer has no option but to hit if less than 17
-21/Blackjack, player cannot hit anymore and their turn ends

Classes - Card, Deck, Hand

*Card

  - Suit ( Heart, Clubs, Diamond, Spades)
  - Rank ( 1 - 11 )
  - Show

SUITS = ['Spades', 'Hearts', 'Clubs', 'Diamonds']
RANKS = ['2', '3', '4', '5', '6', '7', '8', '9', '10', 'Jack', 'Queen', 'King', 'Ace']
Card = Suit, Rank, Display of card, and show/hide

*Deck

  - 52 cards
  - shuffle
  - suits, ranks
  - deck
  - deal_card
  - replace_with
Deck of cards
  - Suits, ranks
  - Loop over the Suites - for each suit, fill in rank of the card

*Hand

  - Card dealt to dealer or player
  - gives us the cards dealt
  - dealt card array 
    - method to add cards to this array
  - total value of player's or dealer's dealt cards
  - showing the details of each card dealt and the total value
  - Ace can have value of 1 or 11
* Create two cards, add them to the hand, verify a few things
* Hand Values
  - Calculates value of hand
  - All face cards have value of 10 (Jack, Queen, King)
  - All number cards have value or rank
  - Ace equals 1 or 11

• Blackjack Blackjack.rb

  - player_hand
  - dealer_hand
  - playing - whether the game is on or not
  - current_gamer
  - deck - handle the cards
  - deal - to deal the cards to the player or the dealer
  - hit - player has option to take a card "Hitting"
  - stand - player has the option to close out their hand "Stand"
  - show_hands - to report the hands of the player and the dealer
  - set_results - to set the results of the game
  * Hit
    - Player's turn
    - Player already has two cards, and chooses to receive another card (or more)
  * Stand
    - When player stands => It's the dealer's turn to play
    - Player takes no more cards, (if they stand in the beginning, dealer's card is face up)