War card game: Difference between revisions

=={{header|Python}}==

{{trans|Julia}}

<lang python>""" https://bicyclecards.com/how-to-play/war/ """

from numpy.random import shuffle

SUITS = ['♣', '♦', '♥', '♠']

FACES = ['2', '3', '4', '5', '6', '7', '8', '9', '10', 'J', 'Q', 'K', 'A']

DECK = [f + s for f in FACES for s in SUITS]

CARD_TO_RANK = dict((DECK[i], (i + 3) // 4) for i in range(len(DECK)))

class WarCardGame:

""" card game War """

def __init__(self):

deck = DECK.copy()

shuffle(deck)

self.deck1, self.deck2 = deck[:26], deck[26:]

self.pending = []

def turn(self):

""" one turn, may recurse on tie """

if len(self.deck1) == 0 or len(self.deck2) == 0:

return self.gameover()

card1, card2 = self.deck1.pop(0), self.deck2.pop(0)

rank1, rank2 = CARD_TO_RANK[card1], CARD_TO_RANK[card2]

print("{:10}{:10}".format(card1, card2), end='')

if rank1 > rank2:

print('Player 1 takes the cards.')

self.deck1.extend([card1, card2])

self.deck1.extend(self.pending)

self.pending = []

elif rank1 < rank2:

print('Player 2 takes the cards.')

self.deck2.extend([card2, card1])

self.deck2.extend(self.pending)

self.pending = []

else: # rank1 == rank2

print('Tie!')

if len(self.deck1) == 0 or len(self.deck2) == 0:

return self.gameover()

card3, card4 = self.deck1.pop(0), self.deck2.pop(0)

self.pending = [card1, card2, card3, card4]

print("{:10}{:10}".format("?", "?"), 'Cards are face down.', sep='')

self.turn()

return True

def gameover(self):

""" game over who won message """

if len(self.deck2) == 0:

if len(self.deck1) == 0:

print('\nGame ends as a tie.')

else:

print('\nPlayer 1 wins the game.')

else:

print('\nPlayer 2 wins the game.')

return False

if __name__ == '__main__':

WG = WarCardGame()

while WG.turn():

continue

</lang>{{out}}

<pre>

8♠ K♠ Player 2 takes the cards.

3♠ 8♥ Player 2 takes the cards.

K♣ 4♠ Player 1 takes the cards.

Q♦ J♣ Player 1 takes the cards.

5♦ 6♦ Player 2 takes the cards.

A♥ Q♣ Player 1 takes the cards.

10♣ 5♥ Player 1 takes the cards.

J♦ 7♣ Player 1 takes the cards.

K♥ Q♠ Player 1 takes the cards.

2♦ 2♣ Player 1 takes the cards.

10♠ 9♥ Player 1 takes the cards.

9♠ 3♦ Player 1 takes the cards.

A♠ A♦ Tie!

? ? Cards are face down.

3♥ 8♦ Player 2 takes the cards.

5♣ 2♠ Player 1 takes the cards.

J♠ 4♦ Player 1 takes the cards.

2♥ 7♦ Player 2 takes the cards.

... et cetera ...

A♣ 4♣ Player 1 takes the cards.

7♣ 3♣ Player 1 takes the cards.

9♠ A♦ Player 2 takes the cards.

6♦ Q♠ Player 2 takes the cards.

7♦ 3♦ Player 1 takes the cards.

5♥ 2♥ Player 1 takes the cards.

A♣ A♥ Player 2 takes the cards.

4♣ 10♣ Player 2 takes the cards.

7♣ 10♥ Player 2 takes the cards.

3♣ 5♦ Player 2 takes the cards.

7♦ K♦ Player 2 takes the cards.

3♦ 8♣ Player 2 takes the cards.

5♥ J♦ Player 2 takes the cards.

2♥ 6♥ Player 2 takes the cards.

Player 2 wins the game.

</pre>