blackjack.py
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from random import randrange
import pickle
SUITS = (':clubs:', ':spades:', ':hearts:', ':diamonds:')
CARDS = ('A', '2', '3', '4', '5', '6', '7', '8', '9', 'T', 'J', 'Q', 'K')
CARD_VALUES = {'A':11, '2':2, '3':3, '4':4, '5':5, '6':6, '7':7, '8':8, '9':9, 'T':10, 'J':10, 'Q':10, 'K':10}
class Hand:
def __init__(self):
self.cards = []
def add_cards(self, cards):
if isinstance(cards, list):
for card in cards:
self.cards.append(card)
else:
self.cards.append(cards)
def remove_card(self, card):
self.cards.remove(card)
def get_cards(self):
return self.cards
def get_points(self):
value = 0
number_of_aces = 0
for card in self.cards:
value = value + CARD_VALUES[card[0]]
if card[0] == 'A':
number_of_aces = number_of_aces + 1
while value > 21 and number_of_aces > 0:
value = value - 10
number_of_aces = number_of_aces - 1
return value
def is_blackjack(self):
if self.get_points() == 21 and len(self.cards) == 2:
return True
else:
return False
class Deck:
def __init__(self, number_of_decks=1):
self.shuffle(number_of_decks)
def shuffle(self, number_of_decks):
self.draw_pile = []
for d in range(number_of_decks):
for suit in SUITS:
for card in CARDS:
self.draw_pile.append(card + suit)
def draw(self, number_of_cards=1):
drawn_cards = []
for n in range(number_of_cards):
#print("CARDS LEFT: {}".format(self.cards_left()))
choice = randrange(0, len(self.draw_pile))
drawn_cards.append(self.draw_pile.pop(choice))
return drawn_cards
def cards_left(self):
return len(self.draw_pile)
class Blackjack:
def __init__(self, bet=0, state=None):
if state:
self.deserialize(state)
else:
self.bet = int(bet)
self.deck = Deck()
self.player_hand = Hand()
self.player_hand.add_cards(self.deck.draw(2))
#print(player_hand.get_cards())
self.player_points = self.player_hand.get_points()
#print("Player: {}".format(player_points,))
self.dealer_hand = Hand()
self.dealer_hand.add_cards(self.deck.draw(2))
#print(dealer_hand.get_cards())
self.dealer_points = self.dealer_hand.get_points()
#print("Dealer: {}".format(dealer_points,))
def draw(self):
self.player_hand.add_cards(self.deck.draw(1))
def dealer_draw(self):
while self.player_hand.get_points() <= 21 and (self.dealer_hand.get_points() < 17 or self.dealer_hand.get_points() < self.player_hand.get_points()):
self.dealer_hand.add_cards(self.deck.draw(1))
def is_busted(self):
self.dealer_points = self.dealer_hand.get_points()
self.player_points = self.player_hand.get_points()
if self.player_points > 21:
return 1
elif self.dealer_points > 21:
return 2
else:
return 0
def is_win(self):
if self.player_hand.is_blackjack() and not self.dealer_hand.is_blackjack():
return (int(self.bet + self.bet * 1.5), 'Blackjack! You win: {}')
# Resolve blackjack before dealer draws.
self.dealer_draw()
self.dealer_points = self.dealer_hand.get_points()
self.player_points = self.player_hand.get_points()
# TODO: Check for blackjack Ace + 10 pt
if self.player_points > 21:
return (0, 'You Bust. Total Winnings: {}')
elif self.dealer_points > 21:
return (int(self.bet * 2), 'Dealer Busts. Total Winnings {}')
elif self.dealer_hand.is_blackjack():
return (0, 'You lose. Total Winnings: {}')
elif self.player_points > self.dealer_points:
return (int(self.bet * 2), 'You win! Total Winnings {}')
elif self.player_points == self.dealer_points:
return (self.bet, 'push your bet is returned: {}')
else:
return (0, 'You lose: {}')
def print_hand(self, show_dealer=False):
out_string = ""
if show_dealer:
dealers = ' '.join(self.dealer_hand.get_cards())
out_string += "Dealer's Hand: {} showing for {} points\n".format(dealers, self.dealer_hand.get_points())
else:
dealers = ' '.join(self.dealer_hand.get_cards()[1:])
out_string += "Dealer's Hand: {} showing\n".format(dealers)
self.player_points = self.player_hand.get_points()
out_string += "Player's Hand: {} for {} points".format(' '.join(self.player_hand.get_cards()), self.player_hand.get_points())
return out_string
def get_actions(self):
points = self.player_hand.get_points()
cards = self.player_hand.get_cards()
actions = []
if self.player_hand.is_blackjack():
pass
elif points < 21 and not self.is_busted() == 2:
actions.append('!hit')
actions.append('!stand')
#actions.append('!double')
elif len(cards) == 2:
if cards[0][0] == cards[1][0]:
actions.append('!split')
return actions
def serialize(self):
return pickle.dumps(self)
def deserialize(self, state):
self = pickle.loads(state)
# bet = 10
# bj = Blackjack(bet)
# print(bj.print_hand())
# actions = bj.get_actions()
# done = False
# while len(actions) > 0:
# action = raw_input('Please choose an option [{}]'.format(', '.join(actions)))
# if action == 'stand':
# break
# elif action == 'hit':
# bj.draw()
# print(bj.print_hand())
# elif action == 'serialize':
# state = bj.serialize()
# print(state)
# bj.deserialize(state)
# actions = bj.get_actions()
# win, response = bj.is_win()
# print('\n')
# print(bj.print_hand(show_dealer=True))
# print('\n')
# print(response.format(win,))