I made a code for Blackjack in Python and whenever I run blackjack_game(deck) saying no to the ‘Play Again’ input should quit the game but it doesn’t. Funds going zero and below should also trigger the game to quit but it doesn’t.
This is what it looks like:
import random
import os
# The Card class definition
class Card:
def __init__(self, suit, value, card_value):
# Suit of the Card like Spades and Clubs
self.suit = suit
# Representing Value of the Card like A for Ace, K for King
self.value = value
# Score Value for the Card like 10 for King
self.card_value = card_value
# Clear the terminal
def clear():
os.system("clear")
# Print player stats
def print_stats(player_name, funds, wins, losses, ties, blackjacks, busts):
print('Player: ', player_name)
print('Funds: $', funds)
print(f'Wins: {wins} Losses: {losses} Ties: {ties} Blackjacks: {blackjacks} Busts: {busts}')
# Function to print the cards
def print_cards(cards, hidden):
s = ""
for card in cards:
s = s + "t ________________"
if hidden:
s += "t ________________"
print(s)
s = ""
for card in cards:
s = s + "t| |"
if hidden:
s += "t| |"
print(s)
s = ""
for card in cards:
if card.value == '10':
s = s + "t| {} |".format(card.value)
else:
s = s + "t| {} |".format(card.value)
if hidden:
s += "t| |"
print(s)
s = ""
for card in cards:
s = s + "t| |"
if hidden:
s += "t| * * |"
print(s)
s = ""
for card in cards:
s = s + "t| |"
if hidden:
s += "t| * * |"
print(s)
s = ""
for card in cards:
s = s + "t| |"
if hidden:
s += "t| * * |"
print(s)
s = ""
for card in cards:
s = s + "t| |"
if hidden:
s += "t| * * |"
print(s)
s = ""
for card in cards:
s = s + "t| {} |".format(card.suit)
if hidden:
s += "t| * |"
print(s)
s = ""
for card in cards:
s = s + "t| |"
if hidden:
s += "t| * |"
print(s)
s = ""
for card in cards:
s = s + "t| |"
if hidden:
s += "t| * |"
print(s)
s = ""
for card in cards:
s = s + "t| |"
if hidden:
s += "t| |"
print(s)
s = ""
for card in cards:
s = s + "t| |"
if hidden:
s += "t| |"
print(s)
s = ""
for card in cards:
if card.value == '10':
s = s + "t| {} |".format(card.value)
else:
s = s + "t| {} |".format(card.value)
if hidden:
s += "t| * |"
print(s)
s = ""
for card in cards:
s = s + "t|________________|"
if hidden:
s += "t|________________|"
print(s)
print()
# Function for a game of blackjack
def blackjack_game(deck):
end_game = False
play_again = 'Y'
# Player name
player_name = str(input('Enter player name: '))
# Intro
print('Lets have a fun game of Blackjack, ', player_name)
# Cards for both dealer and player
player_cards = []
dealer_cards = []
# Scores for both dealer and player
player_score = 0
dealer_score = 0
# Player stats
funds = 100
wins = 0
losses = 0
ties = 0
blackjacks = 0
busts = 0
bet = 0
clear()
# Current Stats Display
print_stats(player_name, funds, wins, losses, ties, blackjacks, busts)
# Bets
while play_again == 'Y':
while end_game == False:
while funds > 0:
while bet == 0:
bet = int(input('Enter bet amount: '))
if bet > funds:
print('Insufficient funds')
bet = 0
# Initial dealing for player and dealer
while len(player_cards) < 2:
# Randomly dealing a card
player_card = random.choice(deck)
player_cards.append(player_card)
deck.remove(player_card)
# Updating the player score
player_score += player_card.card_value
# In case both the cards are Ace, make the first ace value as 1
if len(player_cards) == 2:
if player_cards[0].card_value == 11 and player_cards[1].card_value == 11:
player_cards[0].card_value = 1
player_score -= 10
# Print player cards and score
print("PLAYER CARDS: ")
print_cards(player_cards, False)
print("PLAYER SCORE = ", player_score)
input()
# Randomly dealing a card
dealer_card = random.choice(deck)
dealer_cards.append(dealer_card)
deck.remove(dealer_card)
# Updating the dealer score
dealer_score += dealer_card.card_value
# Print dealer cards and score, keeping in mind to hide the second card and score
print("DEALER CARDS: ")
if len(dealer_cards) == 1:
print_cards(dealer_cards, False)
print("DEALER SCORE = ", dealer_score)
else:
print_cards(dealer_cards[:-1], True)
print("DEALER SCORE = ", dealer_score - dealer_cards[-1].card_value)
# In case both the cards are Ace, make the second ace value as 1
if len(dealer_cards) == 2:
if dealer_cards[0].card_value == 11 and dealer_cards[1].card_value == 11:
dealer_cards[1].card_value = 1
dealer_score -= 10
input()
clear()
# Print dealer and player cards
print("DEALER CARDS: ")
print_cards(dealer_cards[:-1], True)
print("DEALER SCORE = ", dealer_score - dealer_cards[-1].card_value)
print()
print("PLAYER CARDS: ")
print_cards(player_cards, False)
print("PLAYER SCORE = ", player_score)
# Managing the player moves
while player_score < 21:
choice = input("Enter H to Hit or S to Stand : ")
# Sanity checks for player's choice
if len(choice) != 1 or (choice.upper() != 'H' and choice.upper() != 'S'):
clear()
print("Wrong choice!! Try Again")
# If player decides to HIT
if choice.upper() == 'H':
# Dealing a new card
player_card = random.choice(deck)
player_cards.append(player_card)
deck.remove(player_card)
# Updating player score
player_score += player_card.card_value
# Updating player score in case player's card have ace in them
c = 0
while player_score > 21 and c < len(player_cards):
if player_cards[c].card_value == 11:
player_cards[c].card_value = 1
player_score -= 10
c += 1
else:
c += 1
clear()
# Print player and dealer cards
print("DEALER CARDS: ")
print_cards(dealer_cards[:-1], True)
print("DEALER SCORE = ", dealer_score - dealer_cards[-1].card_value)
print()
print("PLAYER CARDS: ")
print_cards(player_cards, False)
print("PLAYER SCORE = ", player_score)
# If player decides to Stand
if choice.upper() == 'S':
break
clear()
# Print player and dealer cards
print("PLAYER CARDS: ")
print_cards(player_cards, False)
print("PLAYER SCORE = ", player_score)
print()
print("DEALER IS REVEALING THE CARDS....")
print("DEALER CARDS: ")
print_cards(dealer_cards, False)
print("DEALER SCORE = ", dealer_score)
# Check if player has a Blackjack
if player_score == 21:
print("PLAYER HAS A BLACKJACK")
blackjacks += 1
# Check if player busts
if player_score > 21:
print("PLAYER BUSTED!!!")
busts += 1
print("DEALER WINS!!!")
losses += 1
funds -= bet
bet = 0
print_stats(player_name, funds, wins, losses, ties, blackjacks, busts)
end_choice = input('Play again(Y/N)?: ')
play_again = end_choice.upper()
player_cards = []
dealer_cards = []
player_score = 0
dealer_score = 0
end_game = True
input()
# Managing the dealer moves
while dealer_score < 17:
clear()
print("DEALER DECIDES TO HIT.....")
# Dealing card for dealer
dealer_card = random.choice(deck)
dealer_cards.append(dealer_card)
deck.remove(dealer_card)
# Updating the dealer's score
dealer_score += dealer_card.card_value
# Updating player score in case player's card have ace in them
c = 0
while dealer_score > 21 and c < len(dealer_cards):
if dealer_cards[c].card_value == 11:
dealer_cards[c].card_value = 1
dealer_score -= 10
c += 1
else:
c += 1
# print player and dealer cards
print("PLAYER CARDS: ")
print_cards(player_cards, False)
print("PLAYER SCORE = ", player_score)
print()
print("DEALER CARDS: ")
print_cards(dealer_cards, False)
print("DEALER SCORE = ", dealer_score)
input()
# TIE Game
if dealer_score == player_score:
print("TIE GAME!!!!")
ties += 1
bet = 0
print_stats(player_name, funds, wins, losses, ties, blackjacks, busts)
end_choice = input('Play again(Y/N)?: ')
play_again = end_choice.upper()
player_cards = []
dealer_cards = []
player_score = 0
dealer_score = 0
end_game = True
# Dealer busts
elif dealer_score > 21:
print("DEALER BUSTED!!! YOU WIN!!!")
wins += 1
funds += bet
bet = 0
print_stats(player_name, funds, wins, losses, ties, blackjacks, busts)
end_choice = input('Play again(Y/N)?: ')
play_again = end_choice.upper()
player_cards = []
dealer_cards = []
player_score = 0
dealer_score = 0
end_game = True
# Dealer gets a blackjack
elif dealer_score == 21:
print("DEALER HAS A BLACKJACK!!! PLAYER LOSES")
losses += 1
funds -= bet
bet = 0
print_stats(player_name, funds, wins, losses, ties, blackjacks, busts)
end_choice = input('Play again(Y/N)?: ')
play_again = end_choice.upper()
player_cards = []
dealer_cards = []
player_score = 0
dealer_score = 0
end_game = True
# Player Wins
elif player_score < 21 and player_score > dealer_score:
print("PLAYER WINS!!!")
wins += 1
funds += bet
bet = 0
print_stats(player_name, funds, wins, losses, ties, blackjacks, busts)
end_choice = input('Play again(Y/N)?: ')
play_again = end_choice.upper()
player_cards = []
dealer_cards = []
player_score = 0
dealer_score = 0
end_game = True
# Dealer Wins
else:
print("DEALER WINS!!!")
losses += 1
funds -= bet
bet = 0
print_stats(player_name, funds, wins, losses, ties, blackjacks, busts)
end_choice = input('Play again(Y/N)?: ')
play_again = end_choice.upper()
player_cards = []
dealer_cards = []
player_score = 0
dealer_score = 0
end_game = True
quit()
if __name__ == '__main__':
# The type of suit
suits = ["Spades", "Hearts", "Clubs", "Diamonds"]
# The suit value
suits_values = {"Spades":"u2664", "Hearts":"u2661", "Clubs": "u2667", "Diamonds": "u2662"}
# The type of card
cards = ["A", "2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K"]
# The card value
cards_values = {"A": 11, "2":2, "3":3, "4":4, "5":5, "6":6, "7":7, "8":8, "9":9, "10":10, "J":10, "Q":10, "K":10}
# The deck of cards
deck = []
# Loop for every type of suit
for suit in suits:
# Loop for every type of card in a suit
for card in cards:
# Adding card to the deck
deck.append(Card(suits_values[suit], card, cards_values[card]))
I added a quit() that should trigger should ‘while play_again == ‘Y’:’ no longer be true. This should have quit the game and stopped it from running. Instead it prompts the user again for a betting amount, acting as if I chose ‘Y’ instead.
I also tried removing:
play_again = 'Y'
and replacing this code block:
end_choice = input('Play again(Y/N)?: ')
play_again = end_choice.upper()
with this:
end_choice = input('Play again(Y/N)?: ')
if end_choice.upper() == 'N':
exit()
But it still wouldn’t quit and stayed as an infinite loop. Help me please, I’ve been stuck with this issue all day.
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Answer
Can you please try by replacing from this:
# Bets
while play_again == 'Y':
while end_game == False:
while funds > 0:
while bet == 0:
bet = int(input('Enter bet amount: '))
if bet > funds:
print('Insufficient funds')
bet = 0
With
# Bets
while play_again == 'Y':
while end_game == False:
if play_again != 'Y':
break
while funds > 0:
if play_again != 'Y' or end_game:
break
while bet == 0:
bet = int(input('Enter bet amount: '))
if bet > funds:
print('Insufficient funds')
bet = 0
I believe we don’t even need to add end_game as it is unnecessary in current scope.
These are nested while loop and parent while loop will not break until child breaks. so we need to add extra condition in child while loop which break it on the basis of parent check.
you can read this post 5 Ways To Break Out of Nested Loops in Python