[Udemy Python][Day11] Blackjack Capstone Project

main.py

"""
Name: main.py
"""
import os
def clear(): os.system('cls' if os.name == 'nt' else 'clear')
from art import logo
import random

# 52 cards represent 1-52: 
# spade: 1-13; heart: 14-26; diamond: 27-39; club: 40-52
poker_suit = [ "spade", "heart", "diamond", "club" ]
poker_num = [ "A", "2", "3", "4", "5", "6", "7", 
              "8", "9", "10", "J", "Q", "K" ]
pc_name = "Dealer"
dict_key_card = "card" # card list
dict_key_stand = "stand" # the stand state

cards = []
for i in range( 1, 53 ):
    cards += [i]
# structure: { "player_name": {"card":[card_list], "stand": bool_flag}}
players_cards = {}

def draw_card():
    card = random.choice( cards )
    cards.remove( card )
    return card

def covert_poker_suit( num ):
    return f"({poker_suit[int((num-1)/13)]}, {poker_num[num%13-1]})"

# Display a player's card
def card_display( player_name, game_end = False ):
    clear()
    if game_end == False:
        print( f"{player_name}'s turn:" )
    else:
        print( "Game End:" )
    # reveal first 2 card for each player
    for name in players_cards:
        print( f"{name}'s card:" )
        display = ""
        count = 0
        for card in players_cards[name][dict_key_card]:
            if count < 2 or player_name == name or game_end:
                display += f"{covert_poker_suit( card )} "
            else:
                display += f"(hidden) "
            count += 1
        print( display )

# calcualte a player's card point
def check_card_point( player_name ):
    point = 0
    ace_num = 0
    for card in players_cards[player_name][dict_key_card]:
        mod_value = card % 13
        if mod_value == 1:
            point += 11
            ace_num += 1
        elif mod_value == 11 or \
             mod_value == 12 or \
             mod_value == 0:
            point += 10
        else:
            point += mod_value
    # adjust A from 11 to 1
    while point > 21 and ace_num > 0:
        point -= 10
        ace_num -= 1

    return point

# PC's decision
def dealer_ai():
    # if total point < 17, draw a card
    if check_card_point( pc_name ) < 17:
        players_cards[pc_name][dict_key_card] += [draw_card()]
    else:
        players_cards[pc_name][dict_key_stand] = 1

# bust/winner check
def check_winner( player_name ):
    winner = ""
    highest_point = 0
    draw = False

    point = check_card_point( player_name )
    if point > 21:
        print( f"{player_name} bust!" )
        if player_name == pc_name:
            name_str =""
            player_num = len( players_cards )
            for name in list(players_cards)[0:player_num-1]:
               name_str += f"{name} "
            print( f"{name_str} win the game." )
            return True
        del players_cards[player_name] # delete from dictionary
    elif point == 21:
        print( f"{player_name} win the game with 21 points!" )
        return True

    for name in players_cards:
        if players_cards[name][dict_key_stand] == 0:
            return False
        point = check_card_point( name )
        if point > highest_point:
            highest_point = point
            winner = name
            draw = False
        elif point == highest_point:
            draw = True

    if draw:
        name_list = ""
        for name in players_cards:
            name_list += f"{name}, "
            card_display( player_name = name, game_end = True )
        print( name_list + f"draw in the game with {highest_point} point" )
    else:
        card_display( player_name = winner, game_end = True )
        print( f"{winner} win the game with {highest_point} point" )
    return True

def blackjack_game( player_num ):
    #global players_name
    name_list = []
    for num in range( 0, player_num ):
        name_list += [input( f"What's player {num+1}'s name? ")]
    name_list += [pc_name] # Dealer
    
    # starting
    for num in range( 0, player_num + 1 ):
        players_cards[name_list[num]] = {}
        players_cards[name_list[num]][dict_key_card] = [draw_card()]
        players_cards[name_list[num]][dict_key_stand] = 0

    game_end = False
    while not game_end:
        name_list = []
        for name in players_cards:
            name_list += [name]
        for player_name in name_list:
            card_display( player_name )
            if player_name == pc_name: # dealer
                dealer_ai()
            else:
                if players_cards[player_name][dict_key_stand] == 0:
                    choice = input( f"{player_name}, what's your action? type (h/s): \n" +
                                    "h: Hit (get another card)\n" +
                                    "s: Stand (don't want any card)\n" )
                    if choice == 'h':
                        card = draw_card()
                        print( f"new crad:{covert_poker_suit( card )}" ) #
                        players_cards[player_name][dict_key_card] += [card]
                    elif choice == 's':
                        players_cards[player_name][dict_key_stand] = 1
            game_end = check_winner( player_name )
            if game_end:
                break

start = input( "Do you want to play a game of Blackjack? Type (y/n) " )
if start == 'y':
    print( logo )
    blackjack_game( int(input("How many players? ")) )