298 lines
8.3 KiB
Python
298 lines
8.3 KiB
Python
import json
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from json.encoder import INFINITY
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import random
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from math import floor
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from files.helpers.const import *
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from files.classes.casino_game import Casino_Game
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from flask import g
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deck_count = 4
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ranks = ("2", "3", "4", "5", "6", "7", "8", "9", "X", "J", "Q", "K", "A")
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suits = ("S", "H", "C", "D")
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minimum_bet = 100
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maximum_bet = INFINITY
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def build_game(gambler, currency_kind, wager):
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casino_game = Casino_Game()
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casino_game.user_id = gambler.id
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casino_game.currency = currency_kind
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casino_game.wager = wager
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casino_game.winnings = 0
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casino_game.kind = 'blackjack'
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casino_game.game_state = json.dumps(build_initial_state())
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g.db.add(casino_game)
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g.db.flush()
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def build_initial_state():
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player, dealer, deck = deal_initial_cards()
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state = {
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"player": player,
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"dealer": dealer,
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"deck": deck,
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"actions": [],
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"insurance": False,
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"doubled_down": False,
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"status": "active"
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}
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state['actions'] = determine_actions(state)
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return state
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def save_game_state(game, new_state):
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game.game_state = json.dumps(new_state)
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g.db.add(game)
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def get_active_game(gambler):
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game = g.db.query(Casino_Game) \
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.filter(Casino_Game.active == True and
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Casino_Game.kind == 'blackjack' and
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Casino_Game.user_id == gambler.id).first()
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if game:
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return game, json.loads(game.game_state)
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else:
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return None, None
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def get_safe_game_state(gambler):
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game, game_state = get_active_game(gambler)
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if game:
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return {
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"player": game_state['player'],
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"dealer": [game_state['dealer'][0], "?"],
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"actions": game_state['actions'],
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"insurance": game_state['insurance'],
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"doubled_down": game_state['doubled_down'],
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"status": game_state['status']
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}
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else:
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return None
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def apply_blackjack_result(gambler):
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game, game_state = get_active_game(gambler)
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if game and game.active:
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result = game_state['status']
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if result == 'push' or result == 'insured_loss':
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reward = 0
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elif result == 'won':
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reward = game.wager
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elif result == 'blackjack':
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reward = floor(game.wager * 3/2)
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else:
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reward = -game.wager
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gambler.winnings += reward
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if (reward > -1):
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currency_value = int(getattr(gambler, game.currency, 0))
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setattr(gambler, game.currency,
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currency_value + game.wager + reward)
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game.active = False
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game.winnings = reward
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g.db.add(game)
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def deal_blackjack_game(gambler, wager_value, currency):
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over_min = wager_value >= minimum_bet
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under_max = wager_value <= maximum_bet
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using_dramacoin = currency == "dramacoin"
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using_marseybux = not using_dramacoin
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has_proper_funds = (using_dramacoin and gambler.coins >= wager_value) or (
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using_marseybux and gambler.procoins >= wager_value)
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currency_prop = "coins" if using_dramacoin else "procoins"
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currency_value = getattr(gambler, currency_prop, 0)
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if (over_min and under_max and has_proper_funds):
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# Charge the gambler for the game, reduce their winnings, and start the game.
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setattr(gambler, currency_prop, currency_value - wager_value)
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gambler.winnings -= wager_value
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build_game(gambler, currency_prop, wager_value)
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game, game_state = get_active_game(gambler)
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player_value = get_hand_value(game_state['player'])
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dealer_value = get_hand_value(game_state['dealer'])
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if player_value == 21 and dealer_value == 21:
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game_state["status"] = 'push'
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save_game_state(game, game_state)
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apply_blackjack_result(gambler)
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elif player_value == 21:
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game_state["status"] = 'blackjack'
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save_game_state(game, game_state)
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apply_blackjack_result(gambler)
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g.db.flush()
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return True
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else:
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return False
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# region Actions
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def gambler_hit(gambler):
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game, game_state = get_active_game(gambler.id)
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if game:
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player = game_state['player']
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deck = game_state['deck']
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doubled_down = game_state['doubled_down']
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player.append(deck.pop(0))
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player_value = get_hand_value(player)
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went_bust = player_value == -1
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five_card_charlied = len(player) >= 5
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if went_bust:
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game_state['status'] = 'bust'
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save_game_state(game, game_state)
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apply_blackjack_result(gambler)
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elif five_card_charlied:
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game_state['status'] = 'won'
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save_game_state(game, game_state)
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apply_blackjack_result(gambler)
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else:
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save_game_state(game, game_state)
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if doubled_down or player_value == 21:
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forced_stay_success, forced_stay_state = gambler_stayed(gambler)
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return forced_stay_success, forced_stay_state
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else:
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return True, game_state
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else:
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return False, game_state
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def gambler_stayed(gambler):
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game, game_state = get_active_game(gambler.id)
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if game:
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player = game_state['player']
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dealer = game_state['dealer']
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deck = game_state['deck']
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insured = game_state['insurance']
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player_value = get_hand_value(player)
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dealer_value = get_hand_value(dealer)
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if dealer_value == 21 and insured:
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game_state["status"] = 'insured_loss'
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save_game_state(game, game_state)
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apply_blackjack_result(gambler)
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else:
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while dealer_value < 17 and dealer_value != -1:
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next = deck.pop(0)
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dealer.append(next)
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dealer_value = get_hand_value(dealer)
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if player_value > dealer_value or dealer_value == -1:
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game_state["status"] = 'won'
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elif dealer_value > player_value:
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game_state["status"] = 'lost'
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else:
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game_state["status"] = 'push'
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save_game_state(game, game_state)
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apply_blackjack_result(gambler)
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return True, game_state
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else:
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return False, game_state
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def gambler_doubled_down(gambler):
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game, game_state = get_active_game(gambler.id)
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if game and not game_state['doubled_down']:
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currency_value = getattr(gambler, game.currency, 0)
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if (currency_value < game.wager):
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return False
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setattr(gambler, game.currency, currency_value - game.wager)
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game.wager *= 2
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game_state['doubled_down'] = True
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save_game_state(game, game_state)
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g.db.flush()
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last_hit_success, last_hit_state = gambler_hit(gambler)
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return last_hit_success, last_hit_state
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else:
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return False, game_state
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def gambler_purchased_insurance(gambler):
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game, game_state = get_active_game(gambler.id)
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if game and not game_state['insurance']:
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insurance_cost = game.wager / 2
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currency_value = getattr(gambler, game.currency, 0)
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if (currency_value < insurance_cost):
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return False, game_state
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setattr(gambler, game.currency, currency_value - insurance_cost)
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game_state['insurance'] = True
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game_state['actions'] = determine_actions(game_state)
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save_game_state(game, game_state)
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return True, game_state
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else:
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return False, game_state
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# endregion
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# region Utilities
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def shuffle(x):
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random.shuffle(x)
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return x
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def determine_actions(state):
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actions = ['hit', 'stay', 'double_down']
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if (state['dealer'][0][0] == "A" and not state['insurance']):
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actions.append('insure')
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return actions
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def deal_initial_cards():
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deck = shuffle(
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[rank + suit for rank in ranks for suit in suits for _ in range(deck_count)])
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p1, d1, p2, d2, *rest_of_deck = deck
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return [p1, p2], [d1, d2], rest_of_deck
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def get_card_value(card):
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rank = card[0]
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return 0 if rank == "A" else min(ranks.index(rank) + 2, 10)
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def get_hand_value(hand):
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without_aces = sum(map(get_card_value, hand))
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ace_count = sum("A" in c for c in hand)
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possibilities = []
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for i in range(ace_count + 1):
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value = without_aces + (ace_count - i) + i * 11
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possibilities.append(-1 if value > 21 else value)
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return max(possibilities)
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# endregion
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