def decision(hand: list, bet: int, screenshot: str = None) -> str:
"""Display and capture a player's decision for a specific hand"""
points, _ = hand_points(hand)
if points < 21:
choices = {}
choices["hit"] = True
choices["stand"] = True
choices["double"] = False
choices["split"] = False
if len(hand) == 2 and bet <= player["bank"]:
choices["double"] = True
possibility = ["10", "J", "Q", "K"]
choices["split"] = hand[0]["value"] == hand[1]["value"] or all(
card in possibility for card in hand)
msg = ""
if choices["hit"]:
msg += "[H] Hit\n"
if choices["double"]:
msg += "[D] Double\n"
if choices["split"]:
msg += "[S] Split\n"
if choices["stand"]:
msg += "[Return Key] to Stand"
while (True):
choice = validated_input(
input_msg="What will you do? Select from the above: ",
error_msg="'{}' is an invalid option",
validator=validate_decision,
screenshot=popup(msg, screenshot, output=False))
# Player must choose among the presented option
if choices[choice]:
return choice
else:
reset_screen()
popup(f"'{choice}' is not among your possible option.",
screenshot)
input("Continue...")
else:
# If player has a BlackJack or has busted
return "stand"
def remove_row(self, row=None):
if row is None:
return
msg = "Delete %s '%s'?" % (self.tablename, row.name)
if wx.ID_YES == popup(self, msg, msg,
style=wx.YES_NO|wx.NO_DEFAULT|wx.ICON_QUESTION):
self.db.session.delete(row)
self.db.commit()
def onClose(self, evt=None):
"quit application"
ret = popup(self, "Really Quit?", "Exit XAS Data Library?",
style=wx.YES_NO|wx.ICON_QUESTION)
if ret == wx.ID_YES:
if self.xasdb is not None:
self.xasdb.close()
self.Destroy()
def remove_row(self, row=None):
if row is None:
return
msg = "Delete %s '%s'?" % (self.tablename, row.name)
if wx.ID_YES == popup(self,
msg,
msg,
style=wx.YES_NO | wx.NO_DEFAULT
| wx.ICON_QUESTION):
self.db.session.delete(row)
self.db.commit()
def blackjack_engine():
######################## Internal variable init ################################
game = {}
game["settings"] = {}
game["settings"]["bank"] = {}
game["settings"]["bank"]["min"] = 50
game["settings"]["bank"]["max"] = 100000
game["settings"]["bank"]["init"] = 1000
game["settings"]["shoe"] = {}
game["settings"]["shoe"]["min"] = 1
game["settings"]["shoe"]["max"] = 6
game["settings"]["shoe"]["size"] = 1
game["settings"]["display"] = {}
game["settings"]["display"]["points"] = True
game["deck"] = []
player = {}
dealer = {}
player["header"] = "Your hand:"
player["hand_name"] = [
"first", "second", "third", "forth", "fifth", "sixth"
]
dealer["header"] = "Dealer's hand:"
########################### Internal functions #################################
# Validator functions are pluggins for the validated_input function.
# If validation fails, the validator functions must raise an error
def validate_bank_init_amount(data):
if data == "":
return game["settings"]["bank"]["init"]
data = int(data)
if game["settings"]["bank"]["min"] <= data <= game["settings"]["bank"][
"max"]:
return data
else:
raise Exception(f"'{data}' not in the range settings-bank-min/max")
def validate_shoe_size(data):
if data == "":
return game["settings"]["shoe"]["size"]
data = int(data)
if game["settings"]["shoe"]["min"] <= data <= game["settings"]["shoe"][
"max"]:
return data
else:
raise Exception(f"'{data}' not in the range settings-shoe-min/max")
def validate_show_points(data):
if data == "":
return game["settings"]["display"]["points"]
data = data.lower()
if data in ["y", "n"]:
return data == "y"
else:
raise Exception("Must be 'y' or 'n' or ''.")
def validate_decision(data):
data = data.lower()
choice = {"h": "hit", "s": "split", "d": "double", "": "stand"}
if data in ["h", "s", "d", ""]:
return choice[data]
else:
raise Exception("Must be 'h', 's', 'd', or ''")
def validate_bet(data):
if data == "":
return data
data = int(data)
if 1 <= data <= player["bank"]:
return data
else:
raise Exception(f"Must be between 1 and {player['bank']}")
# ------------------------------------------------------------------------ #
def print_status_line(msg: str, status: str, output: bool = True) -> str:
"""Print msg on the left and status on the right"""
status_line = msg + " " * (80 - len(msg) - len(status)) + status
if output:
print(status_line)
return status_line + "\n"
def print_screen(hand_number: int = None, output: bool = True) -> str:
"""Print Dealer's and Player's hand"""
reset_screen()
screen = print_status_line(msg="",
status=f"Cards left: {len(game['deck'])}",
output=False)
screen += dealer["header"] + "\n"
for hand in dealer["hand"]:
if game["settings"]["display"]["points"]:
points, adjective = hand_points(hand)
screen += f" POINTS: {points} {adjective if adjective else ''}\n"
screen += print_hand(hand, output=False)
screen += "\n" + " " * 20 + "-" * 40 + " " * 20 + "\n"
if hand_number is None:
for idx, (hand,
bet) in enumerate(zip(player["hand"], player["bet"])):
header = player["header"] if len(
player["hand"]
) == 1 else f"Your {player['hand_name'][idx]} hand:"
bank_info = f"BANK: ${player['bank']}" if idx == 0 else ""
screen += print_status_line(msg=header,
status=bank_info,
output=False)
if game["settings"]["display"]["points"]:
points, adjective = hand_points(hand)
screen += f" POINTS: {points} {adjective if adjective else ''}\n"
screen += f" BET: ${bet}\n"
screen += print_hand(hand, output=False)
else:
hand, bet = player["hand"][hand_number], player["bet"][hand_number]
header = player["header"] if len(
player["hand"]
) == 1 else f"Your {player['hand_name'][hand_number]} hand:"
screen += print_status_line(msg=header,
status=f"BANK: ${player['bank']}",
output=False)
if game["settings"]["display"]["points"]:
points, adjective = hand_points(hand)
screen += f" POINTS: {points} {adjective if adjective else ''}\n"
screen += f" BET: ${bet}\n"
screen += print_hand(hand, output=False)
if output:
print(screen)
return screen
def decision(hand: list, bet: int, screenshot: str = None) -> str:
"""Display and capture a player's decision for a specific hand"""
points, _ = hand_points(hand)
if points < 21:
choices = {}
choices["hit"] = True
choices["stand"] = True
choices["double"] = False
choices["split"] = False
if len(hand) == 2 and bet <= player["bank"]:
choices["double"] = True
possibility = ["10", "J", "Q", "K"]
choices["split"] = hand[0]["value"] == hand[1]["value"] or all(
card in possibility for card in hand)
msg = ""
if choices["hit"]:
msg += "[H] Hit\n"
if choices["double"]:
msg += "[D] Double\n"
if choices["split"]:
msg += "[S] Split\n"
if choices["stand"]:
msg += "[Return Key] to Stand"
while (True):
choice = validated_input(
input_msg="What will you do? Select from the above: ",
error_msg="'{}' is an invalid option",
validator=validate_decision,
screenshot=popup(msg, screenshot, output=False))
# Player must choose among the presented option
if choices[choice]:
return choice
else:
reset_screen()
popup(f"'{choice}' is not among your possible option.",
screenshot)
input("Continue...")
else:
# If player has a BlackJack or has busted
return "stand"
############################ Game Launch #######################################
reset_screen()
# First run messages
play_msg = "Wanna play a game of Blackjack? Y or N: "
setting_msg = "Wanna change the game initial settings? Y or N: "
while (input(play_msg).lower() == "y"):
# next run message
play_msg = "Wanna play another game of Blackjack? Y or N: "
reset_screen()
msg = " The game screen size is 80 characters large.\n\n"
msg += "<----------- Please, adjust your terminal window accordingly. ------------>\n\n"
msg += " Enjoy!"
popup(msg)
########################## Game Settings section ###############################
if input(setting_msg).lower() == "y":
while (True):
msg = "Bank amount: ${}\n"
msg += "Shoe Size: {} Deck\n"
msg += "Show points: {}"
reset_screen()
game["settings"]["bank"]["init"] = validated_input(
input_msg="Bank amount: $",
error_msg=
"'{}' is invalid.\nMust be a whole number\nbetwwen 50 and 100000...",
validator=validate_bank_init_amount,
screenshot=popup(
msg.format(
game["settings"]["bank"]["init"],
game["settings"]["shoe"]["size"], 'Y' if
game["settings"]["display"]["points"] else 'N')))
reset_screen()
game["settings"]["shoe"]["size"] = validated_input(
input_msg="Shoe size: ",
error_msg=
"'{}' is invalid.\nMust be a whole number\nbetwwen 1 and 6...",
validator=validate_shoe_size,
screenshot=popup(
msg.format(
game["settings"]["bank"]["init"],
game["settings"]["shoe"]["size"], 'Y' if
game["settings"]["display"]["points"] else 'N')))
reset_screen()
game["settings"]["display"]["points"] = validated_input(
input_msg="Show points? Y or N: ",
error_msg="'{}' is invalid.\nMust be a 'y' or 'n'.",
validator=validate_show_points,
screenshot=popup(
msg.format(
game["settings"]["bank"]["init"],
game["settings"]["shoe"]["size"], 'Y' if
game["settings"]["display"]["points"] else 'N')))
# reset screen and show popup with updated values for confirmation
reset_screen()
popup(
msg.format(
game["settings"]["bank"]["init"],
game["settings"]["shoe"]["size"],
'Y' if game["settings"]["display"]["points"] else 'N'))
if input("Are you ok with those? Y or N: ").lower() != "n":
# next run message
setting_msg = "Wanna change your previous game settings? Y or N: "
break
################################################################################
# Applying game init settings
player["bank"] = game["settings"]["bank"]["init"]
game["deck"] = new_deck(game["settings"]["shoe"]["size"])
# Magic number to determine when the shoe should be replenish
blank_card = random.randint(10, game["settings"]["shoe"]["size"] * 15)
############################# Game Round #######################################
round_number = 1
while (True):
if player["bank"] <= 0:
reset_screen()
popup("You are broke! You can't play anymore")
input("I understand...")
break
if len(game["deck"]) <= blank_card:
game["deck"] = new_deck(game["settings"]["shoe"]["size"])
blank_card = random.randint(
10, game["settings"]["shoe"]["size"] * 15)
reset_screen()
msg = "A blank card has been drawn in the previous round.\n"
msg += " The shoe has be replenish"
popup(msg)
input("Continue...")
random.shuffle(game["deck"])
reset_screen()
print_status_line(f"Round # {round_number}", "Shuffling!")
time.sleep(1)
dealer["hand"] = [[game["deck"].pop(), game["deck"].pop()]]
player["hand"] = [[game["deck"].pop(), game["deck"].pop()]]
player['bet'] = [0]
player["deal_again"] = [True]
# Player cycle
possible_play_left = True
while (possible_play_left):
possible_play_left = any(player["deal_again"])
for idx, (hand,
bet) in enumerate(zip(player["hand"],
player["bet"])):
# Allow to bet even if the 'deal_again' flag is not set
if not bet:
bet = proposed_bet = 100 if player[
"bank"] > 100 else player["bank"] // 2
bet = validated_input(
input_msg=f"How much will you bet? ",
error_msg=
"'{}' is not valid.\nYour bet must be between $1 and"
+ f" ${player['bank']}",
validator=validate_bet,
screenshot=popup(f"Bet ${bet} ?",
print_screen(idx, output=False),
output=False))
if bet == "":
bet = proposed_bet
player['bank'] -= bet
player['bet'][idx] = bet
if player["deal_again"][idx]:
screen = print_screen(idx)
# Reveal one card of the dealer's hand
if dealer["hand"][0][0]["is_hidden"]:
dealer["hand"][0][0]["is_hidden"] = False
time.sleep(1)
# Reveal all the cards of the player's hand(s)
for card_num in range(len(player["hand"][idx])):
if player["hand"][idx][card_num]["is_hidden"]:
screen = print_screen(idx)
time.sleep(1)
player["hand"][idx][card_num][
"is_hidden"] = False
screen = print_screen(idx)
time.sleep(1)
points, adjective = hand_points(hand)
if points == 21 and adjective == "BlackJack!":
reset_screen()
popup("BlackJack!", screen, y=23)
input("Continue...")
elif points > 21:
reset_screen()
popup(" Busted ", screen, y=23)
input("Continue...")
# Making a decision
choice = decision(player["hand"][idx],
player["bet"][idx], screen)
screen = print_screen(idx)
# Applying the decision
if choice == "hit":
player["hand"][idx].append(game["deck"].pop())
player["deal_again"][idx] = True
elif choice == "double":
while (True):
bet = player['bet'][idx]
popup_screen = popup(f"Add ${bet} ?",
screen,
output=False)
bet = validated_input(
input_msg=
f"How much will you add to your previous bet? $",
error_msg=
"'{}' is not valid.\nYour bet must be between $1 and"
+ f" ${player['bet'][idx]}",
validator=validate_bet,
screenshot=popup_screen)
if bet == "":
bet = player['bet'][idx]
if bet <= player['bet'][idx]:
break
else:
reset_screen()
popup(
"Your bet must be between $1 and" +
f" ${player['bet'][idx]}",
popup_screen)
input("Continue...")
player["hand"][idx].append(game["deck"].pop())
player["bank"] -= bet
player["bet"][idx] += bet
player["deal_again"][idx] = True
elif choice == "split":
# Remove the duplicated card from the current hand
card = player["hand"][idx].pop()
print_screen()
time.sleep(1)
# Add the duplicated card to a new hand and a corresponding bet
player["hand"].append([card])
player["bet"].append(bet)
player["bank"] -= player["bet"][idx]
print_screen()
time.sleep(1)
# Add a new card to the current hand
player["hand"][idx].append(game["deck"].pop())
print_screen()
time.sleep(1)
# Add a new card to the new hand
player["hand"][-1].append(game["deck"].pop())
screen = print_screen()
time.sleep(1)
# If the duplicated cards were Aces, not allow to deal more
player["deal_again"][idx] = card["value"] != "A"
player["deal_again"].append(card["value"] != "A")
if card["value"] == "A":
popup(
" When slipping a pair of Aces\nYou are not allowed to hit again.",
screen,
y=20 + 10 * (len(player["hand"]) - 1))
input("Continue with one hand at time...")
break #So we can restart the for loop with the updated hand list
elif choice == "stand":
player["deal_again"][idx] = False
screen = print_screen(idx)
time.sleep(1)
# Reveal all the cards of the player's hand(s) if left hidden
for idx in range(len(player["hand"])):
for card_num in range(len(player["hand"][idx])):
if player["hand"][idx][card_num]["is_hidden"]:
print_screen()
time.sleep(1)
player["hand"][idx][card_num]["is_hidden"] = False
print_screen()
input("End of your plays. Continue...")
# Dealer's cycle
print_screen(0)
time.sleep(1)
dealer["hand"][0][1]["is_hidden"] = False
print_screen(0)
time.sleep(1)
while (hand_points(dealer["hand"][0])[0] < 17):
dealer["hand"][0].append(game["deck"].pop())
print_screen(0)
time.sleep(1)
dealer["hand"][0][-1]["is_hidden"] = False
print_screen(0)
time.sleep(1)
dealer_points = hand_points(dealer["hand"][0])[0]
# Win or Loss cycle
for idx, (hand,
bet) in enumerate(zip(player["hand"], player["bet"])):
print_screen(idx)
time.sleep(1)
player_points = hand_points(hand)[0]
if player_points > 21:
# Showing two popup
screen = print_screen(idx, output=False)
screen = popup(f"You lost ${bet}",
screen,
y=23,
output=False)
popup("Dealer Win", screen, y=8)
elif player_points == dealer_points:
# Returning the bet into player's bank
player["bank"] += bet
popup("Draw", print_screen(idx, output=False), y=15)
elif player_points == 21 and len(hand) == 2:
# Win 150%. Using x + x//2 instead of x*1.5 to avoid fractions
player["bank"] += bet + bet + bet // 2
# Showing two popup
screen = print_screen(idx, output=False)
screen = popup(f"BlackJack!: You win ${bet+bet//2}!",
screen,
y=23,
output=False)
popup("Dealer Lost", screen, y=8)
elif player_points > dealer_points or dealer_points > 21:
player["bank"] += bet * 2
# Showing two popup
screen = print_screen(idx, output=False)
screen = popup(f"You Win ${bet}",
screen,
y=23,
output=False)
popup("Dealer Lost", screen, y=8)
else:
# Showing two popup
screen = print_screen(idx, output=False)
screen = popup(f"You lost ${bet}",
screen,
y=23,
output=False)
popup("Dealer Win", screen, y=8)
# Pause for player analysis
input("Continue...")
print_screen()
if input("Wanna play another round? Y or N: ").lower() == "n":
break
round_number += 1
reset_screen()
print("See you next time!")