NAV Code.md

Can you beat the dealer at 21?

Model the game

• create a single deck of playing cards
• two players (called Sam and the Dealer) who will play against each other
• each player is given two cards from the top of a shuffled deck of cards

Rules to implement

• determine score of a hand[1]
• check if either player has blackjack (21) with their initial hand and wins the game
• if neither player has blackjack then Sam can start drawing cards from the top of the deck
• Sam should stop drawing cards from the deck if their total reaches 17 or higher
• Sam has lost the game if their total is higher than 21
• when Sam has stopped drawing cards the Dealer can start drawing cards from the top of the deck
• the Dealer should stop drawing cards when their total is higher than Sam.
• the Dealer has lost the game if their total is higher than 21
• determine which player wins the game
• Sam wins when both players starts with 21
• Dealer wins when both players starts with 22

[1] Numbered cards are their point value. Jack, Queen and King count as 10 and Ace counts as 11.

Read Deck of Cards

The game should read a deck of cards from a http endpoint. This endpoint is available at nav.no/blackjack It should also be possble to play the game with a random deck of cards. This should be indicated with the commandline argument --randon

The input will be in the format (52 cards):

SA, H4, C7, SJ,…, S5, H9, D10

Suits:

C: Clubs
D: Diamonds
H: Hearts
S: Spades

Values:

2: 2
3: 3
….
10: 10
J: Jack
Q: Queen
K: King
A: Ace

Output

When the game is over, the game should print the name of the winner to standard out, as well as all cards for both players, using this format:

[sam|dealer]
sam: card1, card2,..., cardN
dealer: card1, card2,..., cardN

Testing

The solution should include tests.