Pam Qian Blackjack.py

# Pam Qian Project Blackjack
# Use of class in Python
# Played by two players


import random

class Card:  # Create the class
    def __init__(self, card_num):
        self.card_num = card_num

        self.face_value = self.card_num % 13 + 1 # Calculate the face value 
        
        self.suit = self.card_num // 13  # Calculate the suit
        
        if self.suit == 0:
            self.suit = "♣"
        elif self.suit == 1:
            self.suit = "♦"
        elif self.suit == 2:
            self.suit = "♥"
        else:
            self.suit = "♠"

        self.bj_value = self.face_value  # Calculate the Blackjack value
        
        if self.face_value > 10:
            self.bj_value = 10
        elif self.face_value == 1:
            value_of_ace = ask_ace()
            self.bj_value = value_of_ace
        else:
            self.bj_value = self.face_value
        

    def __str__(self): # Print out the card
        return("You draw a " + str(self.face_value) + self.suit)

    

class Player: # Player class
    def __init__(self, name):
        self.name = name

        self.score = 0
        

def main():

    instruction() # Function gives instruction
    players = get_players() # Ask for players for their name
    deck = make_a_deck() # Function creates a deck of card
    
    for i in range (2): # Use a for loop to make players take turns
        player_num = i % 2
        print ("\n")
        print ("===[Currenet player: " + players[player_num].name + "]===")
        cards,deck = deal_a_hand(deck)
        display_hand(cards)

        total = 0
        keepGoing = "hit"
        while (keepGoing == "hit" and total < 21):
            total = hand_value(cards) # Calculate the hand
            players[player_num].score = total
            bust = adjust_for_bust(total, keepGoing) # if busts
            if bust != "stay":
                keepGoing = input("hit or stay? ") # If wnats more cards
                if keepGoing == "hit":
                    cards, deck = turn(cards, deck)
                    display_hand(cards)
                    
    winner = is_winner(players)
                

def instruction():
    print("Hello guys! Welcome to Blackjack!")
    print("\n")
    print("===[Instructions]===")
    print("Blackjack, also known as twenty-one, is a card game"
          "played between a player and a dealer.") # From Wikipedia
    print("The objective of the game is to get 21 points or to get a number"
          "that is as close to 21 as you can.")
    print("After drawing the first card, you can choose to hit or stay to see"
          "if you want more cards. ")
    input("Press enter when you are ready. ")
    print("\n")

    

def get_players():
    name = input ("Player 1, name: ")
    player1 = Player(name) # Send player's name to the Player class

    name = input("Player 2, name: ")
    player2 = Player(name)

    players = [player1, player2] # Create a list of the players
    return (players)


def make_a_deck(): # Code from Professor Nanette
    NUM_OF_CARDS_IN_DECK=52
    deck = [] # Create the list of deck
    while (len(deck)<NUM_OF_CARDS_IN_DECK):
        num = random.randrange(NUM_OF_CARDS_IN_DECK)
        if(num not in deck):
            deck.append(num)
    return (deck)



def deal_a_hand(deck):
    cards = [] # Create a list of hand
    cards.append(Card(deck.pop())) # Add the drawn to the hand list, 
    cards.append(Card(deck.pop()))      # and reomove it from the deck list
    
    return (cards, deck)

def display_hand(cards):
    i = 0
    while (i < len(cards)):
        print(cards[i])  # Print the cards in hand
        i += 1
       

def ask_ace(): # Ask for low or hight for Ace
    value_of_ace = int(input("Do you want the Ace to be 1 or 11? "))
    return(value_of_ace)


def turn(cards, deck):
    cards.append(Card(deck.pop())) # If hits, add the new card in hand list,
    return(cards, deck)                # and reomove it from the deck list.


def hand_value(cards):  # Calculate the value of all cards in hand
    total = 0
    for card in cards:
        total += card.bj_value
    print("Value of all your cards: " + str(total))
    return (total)


def adjust_for_bust(total, keepGoing): # See if hand is more than 21
    if total > 21:
        print ("Bust!")
        keepGoing = "stay"
    return (keepGoing)


def is_winner(players): # Determine the winner
    if (players[0].score <= 21 and players[1].score <= 21):
        if (players[0].score < players[1].score):
            print(players[1].name + ", you won.")
        elif (players[0].score > players[1].score):
            print(players[0].name + ", you won.")
        else:
            print("You tie!")
    elif (players[0].score >= 21 and players[1].score >= 21):
        print("You both lost!")
    elif(players[0].score >= 21 and players[1].score <= 21):
        print(players[1].name + ", you won!")
    elif(players[0].score <= 21 and players[1].score >= 21):
        print(players[0].name + ", you won!")



# Call Main
main()