# Mini-project #6 - 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_dealer = 0
score_player = 0
the_deck =""
dealer_hand=""
my_hand=""

# 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):
        #list of cards of the hand
        self.cards=[]
        # value of the hand
        self.hand_value=0
        #has hand an ace?
        self.has_ace = False

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

    def add_card(self, card):
        # add a card object to a hand
        self.cards.append(card)
        #sum the value of the card
        self.hand_value=self.hand_value+VALUES[card.get_rank()]
        
        #check if i have an ace
        if card.get_rank() == RANKS[0]:
            self.has_ace=True

    def get_value(self):
        # count aces as 1, if the hand has an ace, then add 10 to hand value if it doesn't bust
        if self.has_ace == True:
            if self.hand_value+10 <=21:
                return self.hand_value+10
        return self.hand_value
   
    def draw(self, canvas, pos):
        i=0
        #for every card...
        for next in self.cards:
            card_pos=((i * CARD_SIZE[0])+pos[0]+10*i, pos[1])
            next.draw(canvas, card_pos)
            i=i+1 #increase the position of the card
        
# define deck class 
class Deck:
    def __init__(self):
        #list of cards
        self.cards=[]
        #double for, every cards
        for rank in RANKS:
            for suit in SUITS:
                self.cards.append(Card(suit, rank))
                
    #remix the cards
    def shuffle(self):
        # shuffle the deck
        random.shuffle(self.cards)

    def deal_card(self):
        return self.cards.pop()
    
    def __str__(self):
        result="Deck contains "
        #for every card...
        for next in self.cards:
            result=result + " " + str(next)
        return result


#define event handlers for buttons
def deal():
    global outcome, in_play, the_deck, dealer_hand, my_hand, score_dealer
    #reset the outcome
    outcome=""
    #reset the deck and hands
    the_deck=Deck()
    the_deck.shuffle()
    dealer_hand=Hand()
    my_hand=Hand()
    
    #give the cards
    dealer_hand.add_card(the_deck.deal_card())
    dealer_hand.add_card(the_deck.deal_card())
    my_hand.add_card(the_deck.deal_card())
    my_hand.add_card(the_deck.deal_card())
    
    #check if was playing
    if in_play:
        score_dealer=score_dealer+1
    else:
        in_play=True

def hit():
    global score_dealer, in_play, outcome
    if in_play:
        #get a card
        my_hand.add_card(the_deck.deal_card())
        #check bust
        if my_hand.get_value()>21:
            outcome="You went bust and lose"
            score_dealer=score_dealer+1
            in_play=False
           
def stand():
    global outcome, score_dealer, score_player, in_play
    if in_play:
        #hit cards to dealer until value of 17 or higher
        while dealer_hand.get_value()<17:
            dealer_hand.add_card(the_deck.deal_card())
            
        #check situation
        if dealer_hand.get_value()>21:
            outcome="Dealer got busted. You win"
            score_player=score_player+1
        elif dealer_hand.get_value()>=my_hand.get_value():
            outcome="You lose"
            score_dealer=score_dealer+1
        else:
            outcome="You win"
            score_player=score_player+1
        
        in_play=False

# draw handler    
def draw(canvas):
    #title
    canvas.draw_text("Blackjack", [100, 70], 36, "Blue")
    
    #message of hit or deal
    next_step=""
    if in_play:
        next_step="Hit or stand?"
    else:
        next_step="New deal?"
        
    #title and cards of dealer
    canvas.draw_text("Dealer", [100, 130], 24, "Black")
    canvas.draw_text(outcome, [220, 130], 24, "Black")
    dealer_hand.draw(canvas, [100, 150])
    
    #title and cards of player
    canvas.draw_text("Player", [100, 370], 24, "Black")
    canvas.draw_text(next_step, [220, 370], 24, "Black")
    my_hand.draw(canvas, [100, 400])
    
    #score
    canvas.draw_text("Score ", [440, 30], 24, "Black")
    canvas.draw_text("Dealer: "+str(score_dealer), [430, 50], 24, "Black")
    canvas.draw_text("Player: "+str(score_player), [430, 70], 24, "Black")
    
    #if in play, hidde the card of dealer
    if in_play:
        pos=[100, 150]
        canvas.draw_image(card_back, CARD_BACK_CENTER, CARD_BACK_SIZE, [pos[0] + CARD_CENTER[0], pos[1] + CARD_CENTER[1]], CARD_SIZE)


# initialization frame
frame = simplegui.create_frame("Blackjack", 600, 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)


# get things rolling
deal()
frame.start()