blackjack.txt

# Mini-project Blackjack

import simplegui
import random

# load card sprite - 949x392 - source: jfitz.com
CARD_SIZE = (73, 98)
CARD_CENTER = (36.5, 49)
card_images = simplegui.load_image("http://commondatastorage.googleapis.com/codeskulptor-assets/cards.jfitz.png")

CARD_BACK_SIZE = (71, 96)
CARD_BACK_CENTER = (35.5, 48)
card_back = simplegui.load_image("http://commondatastorage.googleapis.com/codeskulptor-assets/card_back.png")    

# initialize some useful global variables
in_play = False
outcome = ""
score = 0
flip= True
# define globals for cards
SUITS = ('C', 'S', 'H', 'D')
RANKS = ('A', '2', '3', '4', '5', '6', '7', '8', '9', 'T', 'J', 'Q', 'K')
VALUES = {'A':1, '2':2, '3':3, '4':4, '5':5, '6':6, '7':7, '8':8, '9':9, 'T':10, 'J':10, 'Q':10, 'K':10}

####################################################################################################################
# define card class
class Card:
    def __init__(self, suit, rank):
        if (suit in SUITS) and (rank in RANKS):
            self.suit = suit
            self.rank = rank
        else:
            self.suit = None
            self.rank = None
            print "Invalid card: ", suit, rank

    def __str__(self):
        return self.suit + self.rank

    def get_suit(self):
        return self.suit

    def get_rank(self):
        return self.rank

    def draw(self, canvas, pos):
        card_loc = (CARD_CENTER[0] + CARD_SIZE[0] * RANKS.index(self.rank), 
                    CARD_CENTER[1] + CARD_SIZE[1] * SUITS.index(self.suit))
        canvas.draw_image(card_images, card_loc, CARD_SIZE, [pos[0] + CARD_CENTER[0], pos[1] + CARD_CENTER[1]], CARD_SIZE)

####################################################################################################################        
# define hand class
class Hand:
    def __init__(self):
        self.cards=[]    

    def __str__(self):
        s=""
        for a in self.cards:
            s=s+" "+str(a)
        return "Hand contains "+ s  # return a string representation of a hand

    def add_card(self, card):
        self.cards.append(card) # add a card object to a hand

    def get_value(self):
        hand_value= 0
        l=[]
        for a in self.cards:
            l.append(a.get_rank())
        for a in self.cards:
            hand_value+= VALUES[a.get_rank()]# count aces as 1, if the hand has an ace, then add 10 to hand value if it doesn't bust
        if hand_value != 0:
            if (10+ hand_value<=21) and ('A' in l):
                return 10 + hand_value
            else:
                return hand_value# compute the value of the hand, see Blackjack video
        else :
            return 0
    def draw(self, canvas, pos):
        for c in self.cards:
            c.draw(canvas, pos)# draw a hand on the canvas, use the draw method for cards
            pos[0]+= CARD_SIZE[0]+20
####################################################################################################################        
# define deck class 
class Deck:
    def __init__(self):
        self.cards=[]
        for s in SUITS:
            for r in RANKS:
                card= Card(s, r)
                self.cards.append(card)    # create a Deck object

    def shuffle(self):
        random.shuffle(self.cards)# shuffle the deck 
                                  # use random.shuffle()

    def deal_card(self):
        return self.cards.pop()   # deal a card object from the deck
    
    def __str__(self):
        s="Deck contains"
        for c in self.cards:
                s=s+" "+str(c) # return a string representing the deck
        return s
####################################################################################################################
####################################################################################################################
#define event handlers for buttons
def deal():
    global flip, message, outcome, in_play, new_deck, player_hand, dealer_hand, score
    if in_play== False:
        flip= True
        message = "Hit or Stand? "
        outcome= ""
        player_hand= Hand()
        dealer_hand= Hand() 
        new_deck=Deck()
        new_deck.shuffle()
        
        dealer_hand.add_card(new_deck.deal_card())
        player_hand.add_card(new_deck.deal_card())
        dealer_hand.add_card(new_deck.deal_card())
        player_hand.add_card(new_deck.deal_card())
 
        in_play = True
    elif in_play== True:     
        outcome="You LOST!!!!"
        message = "New deal ? "
        score-= 1
        in_play= False
######################################################################################################################        
def hit():
    global in_play, outcome, score, message
    if in_play== True:
        player_hand.add_card(new_deck.deal_card())
         
        if player_hand.get_value()==21:
            stand()
        elif player_hand.get_value()>21:
            outcome= "You have Busted. You lost!!!!"
            message = "New deal ? "
            score-= 1
             
            in_play= False
 
    # if the hand is in play, hit the player
   
    # if busted, assign a message to outcome, update in_play and score
###########################################################################################################################       
def stand():
    global flip, outcome, in_play, score, message
    if in_play== True:
        flip= False
        while dealer_hand.get_value()< 17:
            dealer_hand.add_card(new_deck.deal_card())
             
        value= dealer_hand.get_value()
        
        if value== player_hand.get_value():
            outcome="You LOST!!!!"
            message = "New deal ? "
            score-= 1
             
            in_play= False
        elif value< player_hand.get_value():
            outcome= "You won!!!!"
            message = "New deal ? "
            score+= 1
             
            in_play= False
        elif value> 21:
            outcome= "You won!!!!Dealer busted"
            message = "New deal ? "
            score+= 1
             
            in_play= False    
        elif value> player_hand.get_value() and value<= 21:
            outcome= "You lost!!!!"
            message = "New deal ? "
            score-= 1
             
            in_play= False
        
     
###########################################################################################################################
# draw handler    
def draw(canvas):
    global message, flip
    canvas.draw_text("BLACKJACK", [300, 40], 36, "White")
    canvas.draw_text("Score = "+str(score), [350, 75], 26, "Yellow")
    canvas.draw_text(message, [350, 350], 30, "White")
    canvas.draw_text(outcome, [350, 285], 30, "White")
    canvas.draw_text("Dealer's Hand", [50, 125], 30, "White")
    canvas.draw_text("Player's Hand", [50, 350], 30, "White")
    dealer_hand.draw(canvas, [50, 150])
    player_hand.draw(canvas, [50, 375])
    if flip== True:
        canvas.draw_image(card_back,CARD_BACK_CENTER ,CARD_BACK_SIZE ,[50+ CARD_CENTER[0], 150+ CARD_CENTER[1]], CARD_SIZE)
#######################################################################################################
player_hand= Hand()
dealer_hand= Hand()
new_deck= Deck()
score= 0
message = "Hit or Stand? "
#######################################################################################################
# initialization frame
frame = simplegui.create_frame("Blackjack", 800, 600)
frame.set_canvas_background("Green")

#create buttons and canvas callback
frame.add_button("Deal", deal, 200)
frame.add_button("Hit",  hit, 200)
frame.add_button("Stand", stand, 200)
frame.set_draw_handler(draw)


 
deal()
frame.start()