MarseyWorld/files/helpers/blackjack.py

139 lines
4.4 KiB
Python

from json.encoder import INFINITY
import random
from math import floor
deck_count = 4
ranks = ["2", "3", "4", "5", "6", "7", "8", "9", "X", "J", "Q", "K", "A"]
suits = ["♠️", "♥️", "♣️", "♦️"]
coins_command_word = "!blackjack"
marseybucks_command_word = "!blackjackmb"
minimum_bet = 100
maximum_bet = INFINITY
def shuffle(x):
random.shuffle(x)
return x
def deal_initial_cards():
deck = shuffle([rank + suit for rank in ranks for suit in suits for _ in range(deck_count)])
p1, d1, p2, d2, *rest_of_deck = deck
return [p1, p2], [d1, d2], rest_of_deck
def get_card_value(card):
rank = card[0]
return 0 if rank == "A" else min(ranks.index(rank) + 2, 10)
def get_hand_value(hand):
without_aces = sum(map(get_card_value, hand))
ace_count = sum("A" in c for c in hand)
possibilities = []
for i in range(ace_count + 1):
value = without_aces + (ace_count - i) + i * 11
possibilities.append(-1 if value > 21 else value)
return max(possibilities)
def format_cards(hand):
return map(lambda x: "".join(x), hand)
def format_all(player_hand, dealer_hand, deck, status, wager, kind):
formatted_player_hand = format_cards(player_hand)
formatted_dealer_hand = format_cards(dealer_hand)
formatted_deck = format_cards(deck)
return f'{"/".join(formatted_player_hand)}_{"/".join(formatted_dealer_hand)}_{"/".join(formatted_deck)}_{status}_{wager}_{kind}'
def check_for_blackjack_commands(in_text, from_user, from_comment):
for command_word in (coins_command_word, marseybucks_command_word):
currency_prop = "coins" if command_word == coins_command_word else "procoins"
currency_value = getattr(from_user, currency_prop, 0)
if command_word in in_text:
for word in in_text.split():
if command_word in word:
try:
wager = word[len(command_word):]
wager_value = int(wager)
except: break
if (wager_value < minimum_bet): break
elif (wager_value > maximum_bet): break
elif (wager_value <= currency_value):
setattr(from_user, currency_prop, currency_value - wager_value)
player_hand, dealer_hand, rest_of_deck = deal_initial_cards()
status = 'active'
player_value = get_hand_value(player_hand)
dealer_value = get_hand_value(dealer_hand)
if player_value == 21 and dealer_value == 21:
status = 'push'
apply_game_result(from_comment, wager, status, currency_prop)
elif player_value == 21:
status = 'blackjack'
apply_game_result(from_comment, wager, status, currency_prop)
elif dealer_value == 21:
status = 'lost'
apply_game_result(from_comment, wager, status, currency_prop)
from_comment.blackjack_result = format_all(player_hand, dealer_hand, rest_of_deck, status, wager, currency_prop)
def player_hit(from_comment):
player_hand, dealer_hand, deck, status, wager, kind = from_comment.blackjack_result.split("_")
player_hand = player_hand.split("/")
dealer_hand = dealer_hand.split("/")
deck = deck.split("/")
player_hand.append(deck.pop(0))
player_value = get_hand_value(player_hand)
if player_value == -1:
status = 'bust'
apply_game_result(from_comment, wager, status, kind)
from_comment.blackjack_result = format_all(player_hand, dealer_hand, deck, status, wager, kind)
if (player_value == 21): player_stayed(from_comment)
def player_stayed(from_comment):
player_hand, dealer_hand, deck, status, wager, kind = from_comment.blackjack_result.split("_")
player_hand = player_hand.split("/")
player_value = get_hand_value(player_hand)
dealer_hand = dealer_hand.split("/")
dealer_value = get_hand_value(dealer_hand)
deck = deck.split("/")
while dealer_value < 17 and dealer_value != -1:
next = deck.pop(0)
dealer_hand.append(next)
dealer_value = get_hand_value(dealer_hand)
if player_value > dealer_value or dealer_value == -1: status = 'won'
elif dealer_value > player_value: status = 'lost'
else: status = 'push'
from_comment.blackjack_result = format_all(player_hand, dealer_hand, deck, status, wager, kind)
apply_game_result(from_comment, wager, status, kind)
def apply_game_result(from_comment, wager, result, kind):
wager_value = int(wager)
user = from_comment.author
if result == 'push': reward = 0
elif result == 'won': reward = wager_value
elif result == 'blackjack': reward = floor(wager_value * 3/2)
else: reward = -wager_value
user.winnings += reward
if (reward > -1):
currency_value = int(getattr(user, kind, 0))
setattr(user, kind, currency_value + wager_value + reward)