Hello everyone! This post is dedicated to creating a blackjack card game in Python programming language. I started by creating classes card.py, player.py, and deck.py. There are comments in the code to help you to understand the code. I am assuming the reader knows the rules of the Blackjack game. If not, please familiarize yourself with the Blackjack game in order to understand the modules. <\/p>\n\n\n\n
Here is the code for the card.py <\/p>\n\n\n
\n#The class below improvises the real card\n\nclass Card:\n def __init__(self, suit, face, value):\n self._suit = suit\n self._face = face\n self._value = value\n\n #Gets the value of the card\n def get_value(self):\n return self._value\n \n #Sets the value of the card\n def set_value(self, v):\n self._value = v\n return self._value \n\n #String representation\n def __str__(self):\n return ( str(self._face) + " of " + str(self._suit) )\n\n\n#Test client\n\ndef main():\n c = Card ("Heart", "Two", 1) \n\n print("First Card: " )\n print(c)\n print (c.get_value())\n print( "New set value is", c.set_value(11) )\n\n c2 = Card("Clubs", "Ace", 1)\n\n print(c2)\n\nif __name__ == '__main__':\n main()\n<\/pre><\/div>\n\n\nHere is the player.py<\/p>\n\n\n
\nfrom card import Card\nfrom deck import Deck\n\n\nclass Player: #Creates a player with a name, balance and #hand from deck\n\n def __init__(self,name,balance, deck): \n \n card1 = deck.deal() #Assigning a card to the #player \n card2 = deck.deal() #Assigning the second card #to the player from the same deck \n\n self._name = name #Name of the player\n self._balance = balance #Balance\n self._hand = [card1, card2] #Initial hand, that is #2 cards\n \n\n def print_hand(self): #Prints hand, that is how many #cards the player has\n if len(self._hand) >= 2: #Making sure the #player has original amount of cards or more\n for i in range(len(self._hand)): \n print(self._hand[i])\n else:\n print("Player has no cards") #Player has got #no cards since the player cannot have 1 card in the game\n\n def print_first(self):\n print(self._hand[0])\n\n def clear(self):\n self._hand = []\n\n def deal_card(self,d):\n card = d.deal()\n self._hand.append(card)\n return self._hand\n \n def print_balance(self):\n print('Your balance: $' + str(self._balance) )\n\n def get_balance(self): #returns the player's #balance\n return self._balance\n\n def bet(self,amount): #Bets the amount if #player's balance is >= amount.\n if self._balance >= amount:\n self._balance-= amount\n return True\n else:\n return False\n #Adds to players balance the amount\n def win(self, amount):\n self._balance+=amount\n\n #Gives hand value\n def hand_value(self):\n sum1 = 0\n for i in range(len(self._hand)):\n sum1+= self._hand[i].get_value()\n return sum1\n \n def blackjack(self): #Checks the blackjack\n sum1 = 0\n for i in range(len(self._hand)):\n sum1+= self._hand[i].get_value()\n if sum1==21:\n return True\n else:\n return False\n \n \n def ace_change_value(self): #Changes Ace value #to 1 if one Ace is present; otherwise all to 1 except one\n count = 0\n new_count = 0\n\n for c in self._hand:\n if c.get_value() == 11:\n count+=1\n if count == 1:\n c.set_value(1)\n if count == 3:\n c.set_value(1)\n<\/pre><\/div>\n\n\nHere is the code for the deck.py <\/p>\n\n\n
\nimport random\nfrom card import Card\n\n#The program creates a class Deck which creates shuffled #52-card deck \n\nclass Deck: #Creates deck of cards\n\n def __init__(self): \n\n seq1 = ['2','3','4','5','6','7','8','9','10']\n seq2 = ["Hearts", "Diamonds", "Clubs", "Spades"]\n seq3 = ["Jack", "Queen", "King","Aces"]\n\n newdeck = []\n\n for s in seq2:\n for n in seq1:\n newdeck.append(s+ " " + n)\n for f in seq3:\n newdeck.append(s+ " " + f)\n random.shuffle(newdeck)\n self._deck = newdeck\n\n\n def print_deck(self): #Prints deck of cards. This is #for test client\n print(self._deck) \n \n\n def deal(self): #Takes a random card from deck, #removes it and returns it as Card type object\n\n seq1 = [ '2','3','4','5','6','7','8','9','10']\n seq2 = ["Hearts", "Diamonds", "Clubs", "Spades"]\n seq3 = ["Jack", "Queen", "King"]\n \n\n card1 = random.choice(self._deck)\n self._deck.remove(card1)\n\n temp_card1 = card1.split() #Temporary list to produce the card's value\n \n\n #To get the suit, face and value of the card, the two #for loops have been created below\n for i in range(2):\n if temp_card1[i] in seq1:\n face_card = temp_card1[i]\n value_card = int(temp_card1[i])\n elif temp_card1[i] in seq2:\n suit_card = temp_card1[i] \n elif temp_card1[i] in seq3:\n face_card = temp_card1[i]\n value_card = 10\n else: \n face_card = temp_card1[i]\n value_card = 11\n\n card1 = Card(suit_card,face_card,value_card)\n\n return card1\n\n\n def deck_size(self): #returns size of the deck\n count = 0\n for i in range (len(self._deck)):\n count+=1\n return count\n\n def refill(self): #refills and reshuffles the deck\n seq1 = ['2','3','4','5','6','7','8','9','10']\n seq2 = ["Hearts", "Diamonds", "Clubs", "Spades"]\n seq3 = ["Jack", "Queen", "King","Aces"]\n\n newdeck = []\n\n for s in seq2:\n for n in seq1:\n newdeck.append(s+ " " + n)\n for f in seq3:\n newdeck.append(s+ " " + f)\n random.shuffle(newdeck)\n self._deck = newdeck\n\n\n\ndef main():\n d = Deck()\n card1 = d.deal()\n print(d.deck_size())\n d.refill()\n print(d.deck_size())\n\n\nif __name__ == '__main__':\n main()\n\n\n\n<\/pre><\/div>\n\n\nNow the client code is blackjack.py. Here is the client code. <\/p>\n\n\n
\n#-----------------------------\n# By Rasul Nazriev\n# Client of card.py player.py and deck.py \n#The program replicates the real card game -- Blackjack\n# blackjack.py\n#--------------------------------\n\n\n#Importing necessary modules\nimport sys\nfrom card import Card\nfrom player import Player\nfrom deck import Deck\n\n#Necessary initialization\n\nd = Deck()\nname = input("Type your name: ") \nbalance = int ( input ("Type your balance: $") )\np = Player(name, balance, d)\ndealer = "Dealer"\nbalance_d = 1\ndealer = Player(dealer, balance_d, d )\n\n\n#The function checks if the player wants to play again \n\ndef play_again():\n global var_play\n play = input("Do you want to play again? (Please type 'yes' or 'no') ")\n if play == "yes":\n p.clear()\n dealer.clear()\n var_play = True\n else:\n var_play = False\n\n#The below function displays player's cards and one card of the Dealer\n\ndef show_cards_first():\n print( "******************" )\n print( "******************" )\n print( "Your cards are: " )\n p.print_hand() \n print( "******************" )\n print( "******************" )\n print( "Dealer's cards are: ") \n dealer.print_first()\n print( "******************" )\n print( "******************" )\n\n#The function below displays all cards\n\ndef show_cards():\n print( "******************" )\n print( "******************" )\n print( "Your cards are: " )\n p.print_hand() \n print( "******************" )\n print( "******************" )\n print( "Dealer's cards are: ") \n dealer.print_hand()\n print( "******************" )\n print( "******************" )\n\n#The function below gives new cards and checks lenght of the deck \ndef new_cards():\n\n if d.deck_size()>20:\n\n p.clear()\n dealer.clear()\n p.deal_card(d)\n p.deal_card(d)\n dealer.deal_card(d)\n dealer.deal_card(d)\n else:\n d.refill()\n p.clear()\n dealer.clear()\n p.deal_card(d)\n p.deal_card(d)\n dealer.deal_card(d)\n dealer.deal_card(d)\n\n#The function below checks some initial conditions\n\ndef first_phase():\n if p.hand_value()>21:\n p.ace_change_value()\n if p.hand_value()>21:\n print("You are busted")\n return "Loss"\n elif p.hand_value()<21:\n pass\n elif p.hand_value()<21:\n pass\n\n\n#In case, player chooses to stand. The function below simulates dealer's turn\n\ndef dealer_turn():\n global result_dealer_turn\n result_dealer_turn =0\n #In case dealer hand value is less than 17, the program should keep giving dealer cards\n if dealer.hand_value()< 17:\n while dealer.hand_value()<17:\n dealer.deal_card(d)\n\n if dealer.hand_value()>21:\n dealer.ace_change_value() #Taking into account that ace can be 1 or 11\n if dealer.hand_value()>21:\n show_cards()\n print("You win!")\n result_dealer_turn = "Win"\n \n elif dealer.hand_value() == 21:\n show_cards()\n print("You lost")\n result_dealer_turn = "Loss"\n \n else:\n dealer_turn()\n\n elif dealer.hand_value() == 21:\n show_cards()\n print("You lost!") \n result_dealer_turn = "Loss"\n \n elif dealer.hand_value() >16 and dealer.hand_value()<p.hand_value():\n show_cards()\n print("You win!")\n result_dealer_turn = "Win"\n \n elif dealer.hand_value ()> 16 and dealer.hand_value()>p.hand_value():\n show_cards()\n print("You lost")\n result_dealer_turn = "Loss"\n \n elif dealer.hand_value() == p.hand_value():\n show_cards()\n print("It's a tie")\n result_dealer_turn = "Tie"\n \n\n \n\n#The function belows checks blackjack conditions\n \ndef blackjack_cond():\n global blackjack \n blackjack = 0\n if p.blackjack() == True and dealer.blackjack() == True:\n print("It is a tie")\n print( "******************" )\n print( "******************" )\n blackjack = "Tie"\n elif p.blackjack () == True and dealer.blackjack() == False:\n print("You win!")\n print( "******************" )\n print( "******************" ) \n blackjack = "Win"\n\n#The functions below checks whether player wants to hit or stand, and performs actions accordingly\n\ndef hit_stand():\n global result_hit_stand\n result_hit_stand = 0\n move = input ("Would you like to hit or stand? (Please type 'hit' or 'stand' ) \\n" )\n if move == 'hit':\n p.deal_card(d)\n if p.hand_value()>21:\n p.ace_change_value() #Taking into account that ace can be 1 or 11\n if p.hand_value()>21:\n show_cards()\n print("You are busted!")\n result_hit_stand = "Loss"\n \n elif p.hand_value()==21:\n show_cards()\n print("You won!")\n result_hit_stand = "Win"\n \n \n elif p.hand_value()<21:\n show_cards_first()\n hit_stand()\n else:\n dealer_turn()\n\n\n#The function below checks whether player typed negative bet or bet more than his balance\n\ndef bet_checker(balance):\n global bet\n bet = int ( input ("Type your bet: $") )\n if bet>balance:\n print("You crazy? You cannot bet more than your balance")\n bet_checker(balance)\n elif bet<0:\n print("Please type positive numbers")\n bet_checker(balance)\n\n elif bet<= balance:\n p.bet(bet)\n\n#Test client. Could also do the below code in the global code, but I preferred to keep things neat.\n\ndef main():\n #Checking the balance \n bet_checker(balance)\n\n #Giving initial cards\n show_cards_first()\n\n #Counter for some conditions below\n counter = 0\n\n while True:\n counter+=1\n if counter>1: #In case player wants to play again, I need to set new bet checker, cards, and I need to show those cards\n bet_checker(p.get_balance())\n new_cards()\n show_cards_first()\n\n blackjack_cond() #Checking blackjack in the first place\n\n if blackjack == "Tie":\n p.win(bet)\n p.print_balance()\n play_again()\n if var_play == True:\n continue\n else:\n break\n \n\n elif blackjack == "Win":\n p.win(bet*2)\n p.print_balance()\n play_again()\n if var_play == True:\n continue\n else:\n break \n \n \n if first_phase() == "Loss":\n p.print_balance()\n play_again()\n if var_play == True:\n continue\n else:\n break \n \n \n\n hit_stand() #Checking hit or stand conditions below\n\n if result_hit_stand== "Win":\n p.win(bet*2.5)\n p.print_balance()\n play_again()\n if var_play == True:\n continue\n else:\n break \n \n \n elif result_hit_stand == "Loss":\n p.print_balance()\n play_again()\n if var_play == True:\n continue\n else:\n break \n \n \n #No need to call dealer_turn function as hit_stand() functions calls dealer_turn function \n #Dealer turn function contains result_dealer_turn global variable\n\n if result_dealer_turn == "Win":\n p.win(bet*2)\n p.print_balance()\n play_again()\n if var_play == True:\n continue\n else:\n break \n \n elif result_dealer_turn == "Loss":\n p.print_balance()\n play_again()\n if var_play == True:\n continue\n else:\n break \n \n \n\n elif result_dealer_turn == "Tie":\n p.win(bet)\n p.print_balance()\n play_again()\n if var_play == True:\n continue\n else:\n break \n \n \n\n\nif __name__ == '__main__':\n main() \n\n\n\n\n<\/pre><\/div>\n\n\nNote: It is important to place the client and other modules in the same directory; otherwise, the client may not work. <\/p>\n\n\n\n
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<\/p>\n","protected":false},"excerpt":{"rendered":"
Hello everyone! This post is dedicated to creating a blackjack card game in Python programming language. I started by creating classes card.py, player.py, and deck.py. There are comments in the code to help you to understand the code. I am assuming the reader knows the rules of the Blackjack game. If not, please familiarize yourself […]<\/p>\n","protected":false},"author":1,"featured_media":280,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-262","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorised"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/rasulnazriev.tech\/index.php?rest_route=\/wp\/v2\/posts\/262","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rasulnazriev.tech\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rasulnazriev.tech\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rasulnazriev.tech\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rasulnazriev.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=262"}],"version-history":[{"count":13,"href":"https:\/\/rasulnazriev.tech\/index.php?rest_route=\/wp\/v2\/posts\/262\/revisions"}],"predecessor-version":[{"id":278,"href":"https:\/\/rasulnazriev.tech\/index.php?rest_route=\/wp\/v2\/posts\/262\/revisions\/278"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rasulnazriev.tech\/index.php?rest_route=\/wp\/v2\/media\/280"}],"wp:attachment":[{"href":"https:\/\/rasulnazriev.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=262"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rasulnazriev.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=262"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rasulnazriev.tech\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=262"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}