wleofeng / objc-BlackJack-001

tags	languages
tutorial, beginner, OOP, Object-Oriented Programming, model	objc

BlackJack

Goals

• Put it all together! Use your knowledge of custom classes, properties, and methods to create a playable card game.

Instructions

We'll be building a BlackJack game. Take a minute and think about how the game could be broken down into classes... we're going to need cards, a deck, and a class for the game itself.

1. Let's start with the most basic element of the game, the card. Make a FISPlayingCard class. Your cards should:

   • have a suit (use these: ♥ ♠ ♣ ♦)

   • have a rank (1-13, Jack/Queen/King == 11/12/13)

   • validate suit/rank, meaning they must not allow the previous two rules to be broken. An invalid suit or rank should return @"" or @0, respectively.

     Note: feel free to use your PlayingCard class from the previous lab (OOP-Cards-Model).

2. Now that we've got cards, create FISPlayingCardDeck with the following:

   • an NSMutableArray property named cards to store your playing cards.

   • a drawRandomCard method that "draws" (returns) a random card from your cards property. (hint: google arc4random_uniform) Don't forget to remove your drawn card from the deck!

   • override its init so that when a deck is created, its cards property is initialized and filled with the appropriate 52 FISPlayingCards.

     When you're done, run the PlayingCardDeckTests to make sure this works as intended.

3. A game's gotta have rules — create the FISBlackjackGame class.

   Your class should have the following properties and methods:

   @property (strong, nonatomic) FISPlayingCardDeck *playingCardDeck; // the playingCardDeck in use
   @property (strong, nonatomic) NSNumber *handScore; // returns the total value of cards in the hand. Remember: Aces can be 1 or 11 !!!
   @property (strong, nonatomic) NSMutableArray *hand; //returns the cards in the hand 
   @property (nonatomic) BOOL isBusted; // returns YES if handScore is more than 21
   @property (nonatomic) BOOL isBlackjack; // returns YES if handScore is 21
   
   - (instancetype)init; // should initialize playingCardDeck with a new deck, set handScore and isBusted to default values
   - (void)deal; // should deal 2 new cards and add those cards to the hand.   
   - (void)hit; // should deal one additional card and add it card to the hand.   

4. From the AppDelegate (in your old friend didFinishLaunchingWithOptions):

   • Create a new FISBlackjackGame
   • Deal
   • Keep hitting until either busting or getting a blackjack
   • NSLog the final hand
   • Run it! Fix any unexpected behavior.
   • Don't forget to run the tests!

Extra Credit

• Add a second AI player, and take turns playing the game. This may actually be easier than you'd think :)