This is in Python

- Modify the Blackjack program. There are some potential errors that can occur. One of them is to check to see if there are enough cards left to deal a round. If not, repopulate and reshuffle the deck.

- Find one additional place that you think needs error checking and detail in the #comments what you are doing.

- Find a second additional error check for this program and detail it and you could earn an additional 5 bonus points.

# Blackjack # From 1 to 7 players compete against a dealer

import cards, games

class BJ_Card(cards.Card): """ A Blackjack Card. """ ACE_VALUE = 1

@property def value(self): if self.is_face_up: v = BJ_Card.RANKS.index(self.rank) + 1 if v > 10: v = 10 else: v = None return v

class BJ_Deck(cards.Deck): """ A Blackjack Deck. """ def populate(self): for suit in BJ_Card.SUITS: for rank in BJ_Card.RANKS: self.cards.append(BJ_Card(rank, suit))

class BJ_Hand(cards.Hand): """ A Blackjack Hand. """ def __init__(self, name): super(BJ_Hand, self).__init__() self.name = name

def __str__(self): rep = self.name + ":\t" + super(BJ_Hand, self).__str__() if self.total: rep += "(" + str(self.total) + ")" return rep

@property def total(self): # if a card in the hand has value of None, then total is None for card in self.cards: if not card.value: return None # add up card values, treat each Ace as 1 t = 0 for card in self.cards: t += card.value

# determine if hand contains an Ace contains_ace = False for card in self.cards: if card.value == BJ_Card.ACE_VALUE: contains_ace = True # if hand contains Ace and total is low enough, treat Ace as 11 if contains_ace and t <= 11: # add only 10 since we've already added 1 for the Ace t += 10 return t

def is_busted(self): return self.total > 21

class BJ_Player(BJ_Hand): """ A Blackjack Player. """ def is_hitting(self): response = games.ask_yes_no(" " + self.name + ", do you want a hit? (Y/N): ") return response == "y"

def bust(self): print(self.name, "busts.") self.lose()

def lose(self): print(self.name, "loses.")

def win(self): print(self.name, "wins.")

def push(self): print(self.name, "pushes.")

class BJ_Dealer(BJ_Hand): """ A Blackjack Dealer. """ def is_hitting(self): return self.total < 17

def bust(self): print(self.name, "busts.")

def flip_first_card(self): first_card = self.cards[0] first_card.flip()

class BJ_Game(object): """ A Blackjack Game. """ def __init__(self, names): self.players = [] for name in names: player = BJ_Player(name) self.players.append(player)

self.dealer = BJ_Dealer("Dealer")

self.deck = BJ_Deck() self.deck.populate() self.deck.shuffle()

@property def still_playing(self): sp = [] for player in self.players: if not player.is_busted(): sp.append(player) return sp

def __additional_cards(self, player): while not player.is_busted() and player.is_hitting(): self.deck.deal([player]) print(player) if player.is_busted(): player.bust() def play(self): # deal initial 2 cards to everyone self.deck.deal(self.players + [self.dealer], per_hand = 2) self.dealer.flip_first_card() # hide dealer's first card for player in self.players: print(player) print(self.dealer)

# deal additional cards to players for player in self.players: self.__additional_cards(player)

self.dealer.flip_first_card() # reveal dealer's first

if not self.still_playing: # since all players have busted, just show the dealer's hand print(self.dealer) else: # deal additional cards to dealer print(self.dealer) self.__additional_cards(self.dealer)

if self.dealer.is_busted(): # everyone still playing wins for player in self.still_playing: player.win() else: # compare each player still playing to dealer for player in self.still_playing: if player.total > self.dealer.total: player.win() elif player.total < self.dealer.total: player.lose() else: player.push()

# remove everyone's cards for player in self.players: player.clear() self.dealer.clear()

def main(): print("\t\tWelcome to Blackjack! ") names = [] number = games.ask_number("How many players? (1 - 7): ", low = 1, high = 8) for i in range(number): name = input("Enter player name: ") names.append(name) print() game = BJ_Game(names)

again = None while again != "n": game.play() again = games.ask_yes_no(" Do you want to play again?: ")

main() input(" Press the enter key to exit.")