blackjack.py

#!/usr/bin/python3.4
# Blackjack Python
import random


def PrintHand(cards):
    for i in range(len(cards)):
        cards[i].PrintCard()


def HandUnder21(cards):
    return (HandPointTotal(cards) <= 21)


def HandPointTotal(cards):
    total = 0
    aces = 0
    for i in range(len(cards)):
        total = total + cards[i].PointValue()
        if cards[i].value == "Ace":
            aces = aces + 1
    total = total + (aces * 10)
    while total > 21 and aces > 0:
        total = total - 10
        aces = aces - 1
    return total


def BlackjackHand(cards):
    return (HandPointTotal(cards) == 21)


def AskPlayBlackjack(again):
    response = ""
    tries = 0
    play = "maybe"
    prompt = ""
    if again:
        prompt = "Keep playing Blackjack? (yes/no) "
    else:
        prompt = "Do you want to play Blackjack? (yes/no) "
    while (len(response) <= 0 or not response.isalpha()) and play == "maybe":
        response = input(prompt)
        tries = tries + 1
        if response.lower() == "yes":
            print("Alright! Let's play!")
            play = "yes"
        elif response.lower() == "no":
            print("Okay. Maybe another time.")
            play = "no"
        else:
            print("I didn't understand that.")
            response = ""
            if tries == 3:
                play = "no"
                print("There seems to be a failure to communicate between us. Perhaps we'll play another time.")
    return play


def HitOrStay():
    print("\r\nHit or Stay?")
    response = "Stay"
    print(response)
    return response


class Card(object):
    suit = ""
    value = ""

    def __init__(self, suit, value):
        self.suit = suit
        self.value = value

    def PrintCard(self):
        print(self.value + " of " + self.suit)

    def PointValue(self):
        if self.value == "King":
            return 10
        elif self.value == "Queen":
            return 10
        elif self.value == "Jack":
            return 10
        elif self.value == "Ace":
            return 1
        else:
            return int(self.value)


class Player(object):

    def __init__(self, name):
        self.name = name
        self.hand = []

    def HitOrStay(self):
        response = input("\r\nHit or Stay? ")
        if response.lower() == "hit" or response.lower() == "stay":
            print("I'll " + response)
        else:
            print("That didn't make any sense... I'll stay")
            response = "Stay"
        return response

    def AddToHand(self, card):
        self.hand.append(card)
        # print(self.name + " Hand: ")
        # self.PrintHand()

    def DiscardHand(self):
        discardPile = self.hand
        self.hand = []
        return discardPile

    def PrintHand(self):
        for i in range(len(self.hand)):
            self.hand[i].PrintCard()
        # print("\r\n")

    def HandUnder21(self):
        return (self.HandPointTotal() <= 21)

    def HandPointTotal(self):
        total = 0
        aces = 0
        for i in range(len(self.hand)):
            total = total + self.hand[i].PointValue()
            if self.hand[i].value == "Ace":
                aces = aces + 1
        total = total + (aces * 10)
        while total > 21 and aces > 0:
            total = total - 10
            aces = aces - 1
        return total

    def BlackjackHand(self):
        return (self.HandPointTotal() == 21 and len(self.hand) == 2)


class Dealer(Player):
    def __init__(self):
        self.name = "Dealer"
        self.hand = []

    def HitOrStay(self):
        if HandPointTotal(self.hand) >= 17:
            print("Dealer stays")
            return "Stay"
        else:
            print("Dealer hits")
            return "Hit"


class Deck(object):
    cards = []
    suits = ["Diamonds", "Clubs", "Hearts", "Spades"]

    def __init__(self):
        self.FillDeck()

    def FillDeck(self):
        for s in range(4):
            for i in range(1, 14):
                if i == 1:
                    self.cards.append(Card(self.suits[s], "Ace"))
                elif i == 11:
                    self.cards.append(Card(self.suits[s], "Jack"))
                elif i == 12:
                    self.cards.append(Card(self.suits[s], "Queen"))
                elif i == 13:
                    self.cards.append(Card(self.suits[s], "King"))
                else:
                    self.cards.append(Card(self.suits[s], str(i)))

    def Shuffle(self):
        for i in range(4):
            cardsShuffled = []
            while len(self.cards) > 0:
                cardsShuffled.append(self.cards.pop(random.randint(0, len(self.cards)-1)))
            self.cards = cardsShuffled
        print("\r\nDeck has been shuffled\r\n")

    def PrintDeck(self):
        for i in range(len(self.cards)):
            self.cards[i].PrintCard()

    def CollectPlayedCards(self, cards):
        for i in range(len(cards)):
            self.cards.append(cards[i])

    def DealCard(self):
        return self.cards.pop(0)


def StartGame():
    deck = Deck()
    # deck.PrintDeck()
    # deck.Shuffle()
    # deck.PrintDeck()
    play = AskPlayBlackjack(False)

    while play == "yes":
        dealerPlay = "yes"
        dealer = Dealer()
        player = Player("Player 1")
        print("Shuffling the deck")
        deck.Shuffle()
        print("Dealing cards")
        player.AddToHand(deck.DealCard())
        dealer.AddToHand(deck.DealCard())
        player.AddToHand(deck.DealCard())
        dealer.AddToHand(deck.DealCard())
        # print("\r\nDeck: \r\n")
        # deck.PrintDeck()
        while play == "yes":
            if player.HandUnder21():
                if player.BlackjackHand():
                    if dealer.BlackjackHand():
                        print("PUSH!")
                    else:
                        print("You got BLACKJACK!!! YOU WIN!!!")
                    dealerPlay = "no"
                    play = "no"
                elif dealer.BlackjackHand():
                    print("Dealer got BLACKJACK!!! Dealer WINS!!!")
                    dealerPlay = "no"
                    play = "no"
                else:
                    print("\r\nHand: \r\n")
                    player.PrintHand()
                    choice = player.HitOrStay()
                    if choice.lower() == "hit":
                        player.AddToHand(deck.DealCard())
                    else:
                        print("Player Total: %d\r\n" % player.HandPointTotal())
                        play = "no"
            else:
                print("Player Total: %d\r\n" % player.HandPointTotal())
                print("\r\nBUST! You lost this round.\r\n")
                play = "no"
                dealerPlay = "no"

        while dealerPlay == "yes":
            if dealer.HandUnder21():
                if dealer.BlackjackHand():
                    print("Dealer got BLACKJACK!!! Dealer WINS!!!???")
                    dealerPlay = "no"
                else:
                    choice = dealer.HitOrStay()
                    if choice.lower() == "hit":
                        dealer.AddToHand(deck.DealCard())
                    else:
                        print("Dealer Total: %d\r\n" % dealer.HandPointTotal())
                        dealerPlay = "no"
                        if dealer.HandPointTotal() > player.HandPointTotal():
                            print("Dealer WINS!!!")
                        elif dealer.HandPointTotal() < player.HandPointTotal():
                            print("YOU WIN!!!")
                        else:
                            print("PUSH!")

            else:
                print("Dealer Total: %d\r\n" % dealer.HandPointTotal())
                print("\r\nDealer BUSTS! You win this round!\r\n")
                dealerPlay = "no"

        print("\r\nPlayer Hand: \r\n")
        player.PrintHand()
        print("\r\nDealer Hand: \r\n")
        dealer.PrintHand()
        deck.CollectPlayedCards(player.DiscardHand())
        deck.CollectPlayedCards(dealer.DiscardHand())

        # print("\r\nDeck: \r\n")
        # deck.PrintDeck()
        play = AskPlayBlackjack(True)

# hand = [Card("Spades","King"),Card("Clubs","5"),Card("Hearts","2")]
# print(HandPointTotal(hand))
# print(BlackjackHand(hand))
# print(HandUnder21(hand))

if __name__ == "__main__":
    StartGame()