lab.md

Lab 3.03 - War (Card Game)

Create a program that lets a user play a simplified version of the card game 'War'. In this version, the users will share a single deck of cards and cards will not be added back to the deck after they have been played.

Video Explanation of the Card Game War

Your game should

• start with a given shuffled deck variable (shuffle function comes from python's random library, more details below)
• ask for player1 and player2's names.
• have a function player_turn, with the contract shown below:

    # Name: player_turn
    # Purpose: takes in a player name,
    #          draws/removes a card from the deck,
    #          prints "user drew card x",
    #          and returns the value
    # Arguments: player_name as string, deck as list
    # Returns: integer

• Jacks will be represented as 11, Queens will be represented as 12, Kings will be represented as 13, and Aces will be represented as 14. The suit does not matter.
• Create a function card_name to be used by player_turn(), that takes in an integer representing a drawn card, and returns a string that names the card. 2 prints as "2", 3 is "3", etc., but 11 is "J", 12 is "Q", 13 is "K", and 14 is "A".
• Make sure to write the contract for card_name()!
• Include a while loop that keeps the game running until there are no cards in the deck.
• If there is a tie, there is "war". Take the next two cards. Whoever wins that comparison gets all four cards (including the previous tied cards).
• If there is another tie, continue taking the next two cards until there a winner.
• The winner takes all the "war" cards.
• Keep track of the score.
• The player who takes the greatest number of cards wins.
• Declare the name of the winner and final score at the end of the game.

Sample Output

Player 1's name: Pat Player 2's name: Sam

Pat drew 8 Sam drew 9 Sam has high card Pat: 0 Sam: 2

Pat drew 9 Sam drew 8 Pat has high card Pat: 2 Sam: 2

Pat drew 7 Sam drew 7 War Pat: 2 Sam: 2

Pat drew 5 Sam drew 6 Sam has high card Sam wins war of 4 cards Pat: 2 Sam: 6

...

Pat drew 10 Sam drew K Sam has high card Pat: 18 Sam: 24

Pat drew 2 Sam drew 2 War
Pat: 18 Sam: 24

Pat drew A Sam drew A War
Pat: 18 Sam: 24

Pat drew 2 Sam drew 5 Sam has high card Sam wins war of 6 cards Pat: 18 Sam: 30

Pat drew J Sam drew A Sam has high card Pat: 18 Sam: 32

Pat drew 10 Sam drew 3 Pat has high card Pat: 20 Sam: 32

Final Score Pat: 20 Sam: 32 Winner: Sam

Deck Shuffling

While seemingly simple, shuffling a deck is a somewhat complicated problem. Luckily, Python's random library has a built-in shuffle algorithm. Feel free to read the documentation, but we have provided a simple wrapper function that will return to you a shuffled deck of cards.

    import random

    # Name: shuffled_deck
    # Purpose: will return a shuffled deck to the user
    # Input:
    # Output: a list representing a shuffled deck
    def shuffled_deck():
        basic_deck = list(range(2, 15)) * 4
        random.shuffle(basic_deck)
        return basic_deck

Bonus

Instead of closing the program when the deck is empty, create a way for the user to play again.