blackjack/src/pyjack/game.py

import re
from pyjack.dealer import Dealer
from pyjack.deck import Deck
from pyjack.player import Player


class Game:
    """The Game class is the central coordinator, managing the flow of
    the entire round, from setup to payout."""

    # TODO: - play_round() function
    #       - show_cards function

    def __init__(self) -> None:
        """Creates instances of 'Deck', 'Player', and 'Dealer'."""
        self.deck = Deck()
        self.player = Player(0)
        self.dealer = Dealer(1000)

    def compare_hands(self, bet: int) -> str:
        """*Resolution/Payout*: Compares final hand values, checks for
        Bust, Blackjack, and highest value.

        *Updates* player.chips based on the outcome and the bet.

        *Returns* the result string (e.g., "Player Wins!")."""

        # HACK: this might work but certainly needs to be fixed.
        # check if Player or Dealer busts

        player_value = self.player.hand.value
        dealer_value = self.dealer.hand.value
        player_cards = len(self.player.hand.cards)
        dealer_cards = len(self.dealer.hand.cards)

        # Check player bust:
        if player_value > 21:
            self.player.chips -= bet
            return "Player Lost"
        # Check dealer bust:
        if dealer_value > 21:
            self.player.chips += bet
            return "Player Wins"

        # Check for Blackjack (21 with 2 cards)

        is_player_bj = player_value == 21 and player_cards == 2
        is_dealer_bj = dealer_value == 21 and dealer_cards == 2

        if is_player_bj and not is_dealer_bj:
            self.player.chips += bet * 1.5
            return "Player Wins 3:2"
        elif is_dealer_bj:
            self.player.chips -= bet
            return "Player Lost"

        # Check for normal values
        if player_value > dealer_value:
            self.player.chips += bet
            return "Player Wins"

        elif player_value < dealer_value:
            self.player.chips -= bet
            return "Player Lost"

        else:
            return "Tie"