blackjack game

**imran akhtar** · Dec 21 '08, 12:32 PM

ok i understand, and i would like to say sorry.

**imran akhtar** · Dec 21 '08, 12:35 PM

blackjack

if you can just help me with this code, i be very much obliged, with this black jack code, it which works, fine, but how do i get the Aces count as 1 or 11. belwo is the code, which is allready made, how and were would i add in the new aces code.

Code:

import random as r
deck = [2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11]*4
computer = []
player = []
c = 'y'

#Clear works only if you run it from command line
def clear():
    import os
    if os.name == 'nt':
        os.system('CLS') #Pass CLS to cmd
    if os.name == 'posix':
        os.system('clear') #Pass clear to terminal
    
def showHand():
    hand = 0
    for i in player: hand += i #Tally up the total
    print "The computer is showing a %d" % computer[0]
    print "Your hand totals: %d (%s)" % (hand, player)

#Gives player and computer their cards
def setup():
    for i in range(2):
        dealcomputer = deck[r.randint(1, len(deck)-1)]
        dealPlayer = deck[r.randint(1, len(deck)-1)]
        computer.append(dealcomputer)
        player.append(dealPlayer)
        deck.pop(dealcomputer)
        deck.pop(dealPlayer)
setup()
while c != 'q':
    showHand()
    c = raw_input("[D]ealt [S]tick [Q]uit: ").lower()
    clear()
    if c == 'd':
        dealPlayer = deck[r.randint(1, len(deck)-1)]
        player.append(dealPlayer)
        deck.pop(dealPlayer)
        hand = 0
        for i in computer: hand += i
        if not hand > 17:   #computer strategy.
            dealplayer = deck[r.randint(1, len(deck)-1)]
            computer.append(dealplayer)
            deck.pop(dealplayer)
        hand = 0
        for i in player: hand += i
        if hand > 21:
            print "BUST!"
            player = []     #Clear player hand
            computer = []     #Clear computer's hand
            setup()         #Run the setup again
        hand = 0
        for i in computer: hand +=i
        if hand > 21:
            print "computer Busts!"
            player = []
            computer = []
            setup()
    elif c == 's':
        cHand = 0           #computer's hand total
        pHand = 0           #Player's hand total
        for i in computer: cHand += i
        for i in player: pHand += i
        if pHand > cHand:
            print "you Win!"    #If playerHand (pHand) is greater than computeHand (cHand) you win...
            computer = []
            player = []
            setup()
        else:
            print "computer win!"    #...otherwise you loose.
            computer= []
            player = []
            setup()
    else:
        if c == 'q':
            

            gb= raw_input("Press Enter (q to quit): ").lower()
            if 'q' in exit:
             break


       # print "Wins, player = %d  computer = %d" % (player, computer)

    print "Thanks for playing blackjack with the computer!"

**boxfish** · Dec 21 '08, 06:14 PM

I don't know the rules to blackjack, but from what I read on Wikipedia, it looks like the player can choose whether to value an ace as 1 or 11 in order to increase his chance of winning; am I right? So if that's the case, do you want to prompt the user asking whether she wants to value an ace as 1 or 11, or have the computer find the best value for the card? For storing aces in your array of cards, I think you can pick any value you want, for example 1, -1, or "a", and have the program interpert that as an ace.

**bvdet** · Dec 21 '08, 11:42 PM

Where's the "Hit Me" option? I think it would be better to actually deal cards that can be valued, and let the computer decide if an ace should be 1 or 11. I have code for Cards and Deck classes that could be used in a blackjack game. I have added to and modified them. I don't know where the original code came from.
[code=Python]import random

class Card(object):

suitList = ["Hearts", "Diamonds", "Clubs", "Spades"]
rankList = ["Invalid", "Ace", "2", "3", "4", "5", "6", "7", "8", "9", "10", "Jack", "Queen", "King"]
scoreList = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10]

def __init__ (self, suit=0, rank=1):
if suit >= 0 and suit <= 3:
self.suit = suit
else:
self.suit = 0
if rank >= 1 and rank <= 13:
self.rank = rank
else:
self.rank = 1
self.score = self.scoreList[self.rank]
self.cname = self.rankList[self.rank]
self.sname = self.suitList[self.suit]

def __str__(self):
return self.rankList[self.rank] + " of " + self.suitList[self.suit]

def __repr__(self):
return self.rankList[self.rank] + " of " + self.suitList[self.suit]

def __cmp__(self, other):
i = cmp(self.rank, other.rank)
if i == 0:
return cmp(self.suit, other.suit)
return i

class Deck(object):
def __init__(self):
self.cards = []
for suit in range(4):
for rank in range(1,14):
self.cards.appe nd(Card(suit, rank))

def __getitem__(sel f, i):
return self.cards[i]

def __iter__(self):
for card in self.cards:
yield card

def __len__(self):
return len(self.cards)

def __str__(self):
return '\n'.join([str(c) for c in self])

def __repr__(self):
return str(self.cards)

def deal_hand(n, deck):
'''
Randomly deal and remove n cards from a Deck object.
'''
hand = []
if len(deck) >= n:
for i in range(n):
hand.append(dec k.cards.pop(ran dom.choice(rang e(len(deck)))))
else:
print "There are not enough cards in the deck to deal %d cards." % n
return hand

def hit_hand(hand, deck):
if len(deck):
hand.append(dec k.cards.pop(ran dom.choice(rang e(len(deck)))))

def score_hand_BJ(h and):
score = sum([card.score for card in hand])
if 'Ace' in [card.cname for card in hand]:
if score <= 11:
score += 10
return score

deck1 = Deck()
hand1 = deal_hand(2, deck1)
hand2 = deal_hand(2, deck1)
print hand1, hand2
print score_hand_BJ(h and1)
print score_hand_BJ(h and2)

hit_hand(hand1, deck1)
print hand1
print score_hand_BJ(h and1)[/code]
Sample output:
[code=Python]>>> [Jack of Diamonds, 6 of Hearts] [Ace of Hearts, Jack of Clubs]
16
21
[Jack of Diamonds, 6 of Hearts, King of Spades]
26
>>> hit_hand(hand2, deck1)
>>> hand2
[Ace of Hearts, Jack of Clubs, 8 of Spades]
>>> score_hand(hand 2)
19
>>> [/code]In the output and interaction above, hand2 had an Ace, and was originally scored as 11. I hit hand2, and the Ace was scored as 1.

**imran akhtar** · Dec 22 '08, 02:23 PM

thanks for ur help, but the code, above, is bit counfusing, as it runs, how do i actually play it,

**bvdet** · Dec 22 '08, 04:09 PM

The code I posted is not a complete game, just some code that may be useful in a blackjack game. When I find some time, I'll add some to it. I've got to get some work done now.

-BV

**imran akhtar** · Dec 22 '08, 06:44 PM

ok thanks, when you have time, please do so, i am very greatful, for your help.

**bvdet** · Dec 24 '08, 06:47 PM

Following is the complete (so far) code listing of a blackjack game, using classes. At this time, there is no check for "blackjack" or "natural" (a total of 21 in your first two cards).
[code=Python]import random

class Card(object):

suitList = ["Hearts", "Diamonds", "Clubs", "Spades"]
rankList = ["Invalid", "Ace", "2", "3", "4", "5", "6", "7", "8", "9", "10", "Jack", "Queen", "King"]
scoreList = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10]

def __init__ (self, suit=0, rank=1):
if suit >= 0 and suit <= 3:
self.suit = suit
else:
self.suit = 0
if rank >= 1 and rank <= 13:
self.rank = rank
else:
self.rank = 1
self.score = self.scoreList[self.rank]
self.cname = self.rankList[self.rank]
self.sname = self.suitList[self.suit]

def __str__(self):
return self.rankList[self.rank] + " of " + self.suitList[self.suit]

def __repr__(self):
return self.rankList[self.rank] + " of " + self.suitList[self.suit]

def __cmp__(self, other):
i = cmp(self.rank, other.rank)
if i == 0:
return cmp(self.suit, other.suit)
return i

class Deck(object):
def __init__(self):
self.cards = []
for suit in range(4):
for rank in range(1,14):
self.cards.appe nd(Card(suit, rank))

def __getitem__(sel f, i):
return self.cards[i]

def __iter__(self):
for card in self.cards:
yield card

def __len__(self):
return len(self.cards)

def __str__(self):
return '\n'.join([str(c) for c in self])

def __repr__(self):
return str(self.cards)

class BJ(object):

dealer_hit_thre shold = 15

def __init__(self):
'''
Designed for 2 players. Player 2 is the dealer. Dealer wins a tie.
Results are appended to self.results:
[[winner, playerhand, dealerhand], [winner, playerhand, dealerhand]]
Results are formatted for output.
'''
self.results = []
self.deck = Deck()

def deal_hand(self, n, deck):
'''
Randomly deal and remove n cards from a Deck object.
'''
hand = []
if len(deck) >= n:
for i in range(n):
hand.append(dec k.cards.pop(ran dom.choice(rang e(len(deck)))))
else:
print "There are not enough cards in the deck to deal %d cards." % n
return hand

def hit_hand(self, hand, deck):
if len(deck):
hand.append(dec k.cards.pop(ran dom.choice(rang e(len(deck)))))
return True
else: return False

def score_hand_BJ(s elf, hand):
score = sum([card.score for card in hand])
if 'Ace' in [card.cname for card in hand]:
if score <= 11:
score += 10
return score

def play(self):
playing = False
print
while True:
option = raw_input("(D)e al, (H)it Me, (S)tand, (Q)uit")
if option.upper() == "D":
if playing:
print "You are already playing a hand!"
else:
playing = True
hand1 = self.deal_hand( 2, self.deck)
hand2 = self.deal_hand( 2, self.deck)
print "Player 1 Hand: %s\nPlayer 2 Hand: %s" % (hand1, hand2)
print "Player 1 Score: %s\nPlayer 2 Score: %s" % (self.score_han d_BJ(hand1), self.score_hand _BJ(hand2))
while self.score_hand _BJ(hand2) <= BJ.dealer_hit_t hreshold:
if not self.deck:
print "The deck is empty. Start over."
self.play_over( )
return
else:
self.hit_hand(h and2, self.deck)
print "Dealer took a HIT. Current HAND: %s Score: %s" % (hand2, self.score_hand _BJ(hand2))
if self.score_hand _BJ(hand2) > 21:
print "Dealer BUSTS. Player wins."
self.results.ap pend(["Player", hand1, hand2])
playing = False
print

elif option.upper() == "H":
if playing:
if not self.deck:
print "The deck is empty. Start over."
self.play_over( )
return
else:
self.hit_hand(h and1, self.deck)
print "Player took a HIT. Current HAND: %s Score: %s" % (hand1, self.score_hand _BJ(hand1))
if self.score_hand _BJ(hand1) > 21:
print "Player BUSTS. Dealer wins."
self.results.ap pend(["Dealer", hand1, hand2])
playing = False
print
else:
print "You must DEAL before taking a HIT"

elif option.upper() == "S":
if playing:
if self.score_hand _BJ(hand1) > self.score_hand _BJ(hand2):
print "PLAYER wins this hand. Score: %s to %s" % (self.score_han d_BJ(hand1), self.score_hand _BJ(hand2))
self.results.ap pend(["Player", hand1, hand2])
else:
print "DEALER wins this hand. Score: %s to %s" % (self.score_han d_BJ(hand1), self.score_hand _BJ(hand2))
self.results.ap pend(["Dealer", hand1, hand2])
else:
print "You must DEAL before selecting option to STAND."
playing = False
print

elif option.upper() == "Q":
self.play_over( )
return

def play_over(self) :
dd = dict.fromkeys(["Player", "Dealer"], 0)
for hand in self.results:
dd[hand[0]] += 1
playerwins = dd["Player"]
dealerwins = dd["Dealer"]
if playerwins > dealerwins:
resultList = ["", "Player won %d hand%s to %d." % (playerwins, ["", "s"][playerwins>1 or 0], dealerwins)]
elif playerwins == dealerwins:
resultList = ["There was a tie %d hand%s to %d." % (playerwins, ["", "s"][playerwins>1 or 0], dealerwins)]
else:
resultList = ["Dealer won %d hand%s to %d." % (dealerwins, ["", "s"][dealerwins>1 or 0], playerwins)]
resultList.appe nd("Hands Played:")
if self.results:
for hand in self.results:
resultList.appe nd(" Player: %s Dealer: %s" % (", ".join([str(c) for c in hand[1]]), ", ".join([str(c) for c in hand[2]])))
else:
resultList.appe nd("No hands were played")
print '\n'.join(resul tList)

if __name__ == "__main__":
g = BJ()
g.play()[/code]

Sample run:[code=Python]>>>
Player 1 Hand: [8 of Clubs, 10 of Hearts]
Player 2 Hand: [Ace of Diamonds, 7 of Clubs]
Player 1 Score: 18
Player 2 Score: 18
Player took a HIT. Current HAND: [8 of Clubs, 10 of Hearts, 10 of Diamonds] Score: 28
Player BUSTS. Dealer wins.

Player 1 Hand: [2 of Hearts, Queen of Hearts]
Player 2 Hand: [2 of Clubs, Jack of Spades]
Player 1 Score: 12
Player 2 Score: 12
Dealer took a HIT. Current HAND: [2 of Clubs, Jack of Spades, Ace of Clubs] Score: 13
Dealer took a HIT. Current HAND: [2 of Clubs, Jack of Spades, Ace of Clubs, 3 of Clubs] Score: 16
Player took a HIT. Current HAND: [2 of Hearts, Queen of Hearts, 7 of Hearts] Score: 19
PLAYER wins this hand. Score: 19 to 16

Player 1 Hand: [Ace of Hearts, 4 of Diamonds]
Player 2 Hand: [7 of Diamonds, 10 of Spades]
Player 1 Score: 15
Player 2 Score: 17
Player took a HIT. Current HAND: [Ace of Hearts, 4 of Diamonds, 9 of Clubs] Score: 14
Player took a HIT. Current HAND: [Ace of Hearts, 4 of Diamonds, 9 of Clubs, Queen of Spades] Score: 24
Player BUSTS. Dealer wins.

Player 1 Hand: [6 of Hearts, King of Diamonds]
Player 2 Hand: [6 of Diamonds, 4 of Clubs]
Player 1 Score: 16
Player 2 Score: 10
Dealer took a HIT. Current HAND: [6 of Diamonds, 4 of Clubs, 9 of Spades] Score: 19
Player took a HIT. Current HAND: [6 of Hearts, King of Diamonds, Jack of Hearts] Score: 26
Player BUSTS. Dealer wins.

Player 1 Hand: [Jack of Clubs, 5 of Hearts]
Player 2 Hand: [Queen of Diamonds, 5 of Clubs]
Player 1 Score: 15
Player 2 Score: 15
Dealer took a HIT. Current HAND: [Queen of Diamonds, 5 of Clubs, 3 of Hearts] Score: 18
Player took a HIT. Current HAND: [Jack of Clubs, 5 of Hearts, King of Spades] Score: 25
Player BUSTS. Dealer wins.

Player 1 Hand: [4 of Spades, 6 of Spades]
Player 2 Hand: [King of Hearts, 10 of Clubs]
Player 1 Score: 10
Player 2 Score: 20
Player took a HIT. Current HAND: [4 of Spades, 6 of Spades, 5 of Spades] Score: 15
Player took a HIT. Current HAND: [4 of Spades, 6 of Spades, 5 of Spades, 5 of Diamonds] Score: 20
DEALER wins this hand. Score: 20 to 20

Player 1 Hand: [6 of Clubs, 8 of Spades]
Player 2 Hand: [3 of Spades, 8 of Diamonds]
Player 1 Score: 14
Player 2 Score: 11
Dealer took a HIT. Current HAND: [3 of Spades, 8 of Diamonds, Queen of Clubs] Score: 21
DEALER wins this hand. Score: 14 to 21

Player 1 Hand: [8 of Hearts, King of Clubs]
Player 2 Hand: [Jack of Diamonds, 9 of Hearts]
Player 1 Score: 18
Player 2 Score: 19
Player took a HIT. Current HAND: [8 of Hearts, King of Clubs, 3 of Diamonds] Score: 21
PLAYER wins this hand. Score: 21 to 19

Dealer won 6 hands to 2.
Hands Played:
Player: 8 of Clubs, 10 of Hearts, 10 of Diamonds Dealer: Ace of Diamonds, 7 of Clubs
Player: 2 of Hearts, Queen of Hearts, 7 of Hearts Dealer: 2 of Clubs, Jack of Spades, Ace of Clubs, 3 of Clubs
Player: Ace of Hearts, 4 of Diamonds, 9 of Clubs, Queen of Spades Dealer: 7 of Diamonds, 10 of Spades
Player: 6 of Hearts, King of Diamonds, Jack of Hearts Dealer: 6 of Diamonds, 4 of Clubs, 9 of Spades
Player: Jack of Clubs, 5 of Hearts, King of Spades Dealer: Queen of Diamonds, 5 of Clubs, 3 of Hearts
Player: 4 of Spades, 6 of Spades, 5 of Spades, 5 of Diamonds Dealer: King of Hearts, 10 of Clubs
Player: 6 of Clubs, 8 of Spades Dealer: 3 of Spades, 8 of Diamonds, Queen of Clubs
Player: 8 of Hearts, King of Clubs, 3 of Diamonds Dealer: Jack of Diamonds, 9 of Hearts
>>> [/code]

Comments are encouraged.

-BV

**imran akhtar** · Dec 25 '08, 02:02 PM

this qucik question wht does it mean , by the pontoon’ rule.

**imran akhtar** · Dec 25 '08, 04:41 PM

would do u mean by "At this time, there is no check for "blackjack" or "natural" (a total of 21 in your first two cards)."

**imran akhtar** · Dec 25 '08, 07:31 PM

i played the game, it is pretty good, is this the complete code.

**bvdet** · Dec 26 '08, 04:20 PM

The code is complete, as far as what I have written. Can't you play a complete game?

If a player gets 21 with the first two cards. it is called a "natural" or "blackjack" . The code does not check for this. If I add anything to the code, it will be a check for a "blackjack" .

-BV

**imran akhtar** · Dec 26 '08, 05:42 PM

this code is a poontoon rule, or is a stick at 16 rule.

**bvdet** · Dec 26 '08, 11:32 PM

This is not pontoon blackjack. The dealer sticks when the value of his hand is greater than the value of variable dealer_hit_thre shold.

-BV

**imran akhtar** · Dec 28 '08, 09:41 PM

hi, does anyone, know the forums, email address or contanct details , i found this one "privacy@bytes. com" but does not seem to work, as i sent emails, and does seem to be a valid email address keeps failing to be sent .