Module Project - Card Game

Please fork and clone this repo so you can start out with the playground included.

The steps listed below match numbered steps in the playground. They will be listed here in chronological order, but you may find them in various places within the playground. This is due to the iterative nature of building up this project from an empty window to the final algorithm when we're done.

Follow the Steps in This Order

Create an enumeration for the value of a playing card, and call it Rank. The values are: ace, two, three, four, five, six, seven, eight, nine, ten, jack, queen, and king. Set the raw type of the enum to Int and assign the ace a value of 1.
Once you've defined the enum as described above, take a look at this built-in protocol, CustomStringConvertible and make the enum conform to that protocol. Make the face cards return a string of their name, and for the numbered cards, simply have it return that number as a string.
Create an enum for the suit of a playing card. The values are hearts, diamonds, spades, and clubs. Use a raw type of String for this enum (this will allow us to get a string version of the enum cases for free, no use of CustomStringConvertible required).
Using the two enums above, create a struct called Card to model a single playing card. It should have constant properties for each constituent piece (one for suit and one for rank).
Make the card also conform to CustomStringConvertible. When turned into a string, a card's value should look something like this, "ace of spades", or "3 of diamonds".
Create a struct to model a deck of cards. It should be called Deck and have an array of Card objects as a constant property. A custom init function should be created that initializes the array with a card of each rank and suit. You'll want to iterate over all ranks, and then over all suits (this is an example of nested for loops). See the next 2 steps before you continue with the nested loops.
In the rank enum, add a static computed property that returns all the ranks in an array. Name this property allRanks. This is needed because you can't iterate over all cases from an enum automatically.
In the suit enum, add a static computed property that returns all the suits in an array. Name this property allSuits.
Back to the Deck and the nested loops. Now that you have a way to get arrays of all rank values and all suit values, create 2 for loops in the init method, one nested inside the other, where you iterate over each value of rank, and then iterate over each value of suit. See an example below to get an idea of how this will work. Imagine an enum that contains the 4 cardinal directions, and imagine that enum has a property allDirections that returns an array of them.
```
for direction in Compass.allDirections {

}
```
These loops will allow you to match up every rank with every suit. Make a Card object from all these pairings and append each card to the cards property of the deck. At the end of the init method, the cards array should contain a full deck of standard playing card objects.
Add a method to the deck called drawCard(). It takes no arguments and it returns a Card object. Have it draw a random card from the deck of cards and return it.

Hint: There should be 52 cards in the deck. So what if you created a random number within those bounds and then retrieved that card from the deck? Remember that arrays are indexed from 0 and take that into account with your random number picking.

Create a protocol for a CardGame. It should have two requirements:
- a gettable deck property
- a play() method
Create a protocol for tracking a card game as a delegate called CardGameDelegate. It should have two functional requirements:
- a function called gameDidStart that takes a CardGame as an argument
- a function with the following signature: game(player1DidDraw card1: Card, player2DidDraw card2: Card)
Create a class called HighLow that conforms to the CardGame protocol. It should have an initialized Deck as a property, as well as an optional delegate property of type CardGameDelegate.
As part of the protocol conformance, implement a method called play(). The method should draw 2 cards from the deck, one for player 1 and one for player 2. These cards will then be compared to see which one is higher. The winning player will be printed along with a description of the winning card. Work will need to be done to the Suit and Rank types above, so see the next couple steps before continuing with this step.
Take a look at the Swift docs for the Comparable protocol. In particular, look at the two functions called < and ==.
Make the Rank type conform to the Comparable protocol. Implement the < and == methods such that they compare the rawValue of the lhs and rhs arguments passed in. This will allow us to compare two rank values with each other and determine whether they are equal, or if not, which one is larger.
Make the Card type conform to the Comparable protocol. Implement the < and == methods such that they compare the ranks of the lhs and rhs arguments passed in. For the == method, compare both the rank and the suit.
Back to the play() method. With the above types now conforming to Comparable, you can write logic to compare the drawn cards and print out 1 of 3 possible message types:
- Ends in a tie, something like, "Round ends in a tie with 3 of clubs."
- Player 1 wins with a higher card, e.g. "Player 1 wins with 8 of hearts."
- Player 2 wins with a higher card, e.g. "Player 2 wins with king of diamonds."
Create a class called CardGameTracker that conforms to the CardGameDelegate protocol. Implement the two required functions: gameDidStart and game(player1DidDraw:player2DidDraw). Model gameDidStart after the same method in the guided project from today. As for the other method, have it print a message like the following:
- "Player 1 drew a 6 of hearts, player 2 drew a jack of spades."
Time to test all the types you've created. Create an instance of the HighLow class. Set the delegate property of that object to an instance of CardGameTracker. Lastly, call the play() method on the game object. It should print out to the console something that looks similar to the following:
```
Started a new game of High Low
Player 1 drew a 2 of diamonds, player 2 drew a ace of diamonds.
Player 1 wins with 2 of diamonds.
```

ufuk-trkz/ios-module-project-protocols

Module Project - Card Game

Follow the Steps in This Order