def dealer_stats_for_given_hand(games: int = 1000000, decks: int = 6) -> tuple:
dealer_stats = {}
for i in range(1, 11):
dealer_stats[str(i)] = {
'17': 0,
'18': 0,
'19': 0,
'20': 0,
'21': 0,
'F': 0
}
deck = BjDeck(decks)
for _ in range(games):
deck.start_game()
start_hand = deck.deal()
dealer = [start_hand]
d_cards = dealer_hand(dealer, deck)
count = count_hand(d_cards)
if count > 21:
count = 'F'
dealer_stats[str(start_hand)][str(
count)] = dealer_stats[str(start_hand)][str(count)] + 1.
raw_count = pd.DataFrame(dealer_stats)
raw_count.index.name = 'end count'
raw_count.columns.name = 'start hand'
total = raw_count / raw_count.sum(axis=0)
return raw_count, total
def rewards(final_hands: list, d_cards: list) -> list:
try:
ret = []
d_hand = count_hand(d_cards)
for hand in final_hands:
# player has over 21 or
# player has less than the dealer or
# dealer has 21 in two cards and the player don't have 21 in two cards
if (hand.count > 21 or
(hand.count < d_hand
and d_hand < 22)) or (d_hand == 21 and len(d_cards) == 2
and len(hand.cards) > 2):
ret.append(-hand.bet)
hand.reward = -hand.bet
# player has blackjack in two cards and dealer don't have 21 in two cards
elif hand.count == 21 and len(
hand.cards) == 2 and (d_hand != 21 or len(d_cards) > 2):
ret.append(hand.bet * 1.5)
hand.reward = hand.bet * 1.5
# dealer has more than 21 or the player has more than the dealer
elif d_hand > 21 or hand.count > d_hand:
ret.append(hand.bet)
hand.reward = hand.bet
# same hand for dealer and player
elif hand.count == d_hand:
ret.append(0)
hand.reward = 0
else:
print(1)
return ret
except BaseException:
print(1)
def __init__(self, cards: list, bet: float, dealer: int, action: str):
self.bet = bet
self.cards = cards.copy()
self.count = count_hand(cards)
self.actions = [{
'hand': self.cards.copy(),
'dealer': dealer,
'action': action
}]
self.reward = 0
def convert_hand_to_index(cards: list) -> str:
''' possible outcomes:
'Y' = split
'D' = double
'S' = Stand
'H' = Hit
'''
if len(cards) == 2:
if cards[0] == cards[1]:
if cards[0] == 1:
index = 'A,A'
else:
index = f'{cards[0]},{cards[1]}'
elif cards[0] == 1:
index = f'A,{cards[1]}'
elif cards[1] == 1:
index = f'A,{cards[0]}'
else:
count = count_hand(cards)
index = str(count)
else:
count = count_hand(cards)
index = str(count)
return index
def test_counts():
assert count_hand([1, 1, 1, 1, 10]) == 14
assert count_hand([1, 10, 1, 10]) == 22
assert count_hand([8, 1]) == 19
assert count_hand([1, 10]) == 21
assert count_hand([1, 1]) == 12
def dealer_hand(cards: list, deck: BjDeck) -> list:
count = count_hand(cards)
while count < 17:
cards.append(deck.deal())
count = count_hand(cards)
return cards
def hit(self, deck: BjDeck):
self.cards.append(deck.deal())
self.count = count_hand(self.cards)