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Code # Interactive command line blackjack game def calculate_total(cards) # [['3', 'H'], ['Q', 'S'], ... ] localarray = cards.map{|e| e[0] } # Go through cards array and pull out the card values and put into # an array called localarray # Change pictures in cards to a number # For each element in the local array # if the card is an ace, give it a value of eleven # if not an ace, test for picture. Changing pic to integer results in # a zero. If not zero then card is not a picture, the number becomes # the value # total = 0 localarray.each do |value| if value == "A" total += 11 elsif value.to_i == 0 # J, Q, K total += 10 else total += value.to_i end end #correct for Aces # Function to adjust a person’s hand to remain below 21 # because an ace can be a one or eleven. # How: Subtract 10 from the hand for every ace the person # has until the total value is below 21 # localarray.select{|e| e == "A"}.count.times do total -= 10 if total > 21 end total end # Start Game puts "Welcome to Blackjack!" puts " " game_on=0 p_bank = 500 p_bet = 0 while game_on == 0 || p_bank > 0 puts "==========Beginning new game===================" puts "How much do you want to bet? enter zero to quit" puts "You have #{p_bank} dollars" p_bet=gets.chomp.to_i if p_bet == 0 puts "You chose to bet nothing, it looks like you do not want to play, goodbye" game_on=1 exit elsif p_bet > p_bank puts "You do not have enough to bet that much" break else p_bank=p_bank-p_bet end suits = ['H', 'D', 'S', 'C'] cards = ['2', '3', '4', '5', '6', '7', '8', '9', '10', 'J', 'Q', 'K', 'A'] deck = cards.product(suits) deck.shuffle! deck # Deal Cards p_cards = [] dealercards = [] p_cards << deck.pop dealercards << deck.pop p_cards << deck.pop dealercards << deck.pop dealertotal = calculate_total(dealercards) p_cardsum = calculate_total(p_cards) # Show Cards puts "" puts "Dealer has: #{dealercards[0]} and #{dealercards[1]}, for a total of #{dealertotal}" puts "The Dealer is showing #{dealercards[1]}" puts "You have: #{p_cards[0]} and #{p_cards[1]}, for a total of: #{p_cardsum}" puts "" puts "You bet #{p_bet} and you have #{p_bank} total dollars" # Player turn if p_cardsum == 21 puts "Congratulations, you hit blackjack! You win!" busted=1 p_bet=p_bet+(p_bet*2) p_bank=p_bank+p_bet #exit end doubled=1 first_time_thru=0 # 0 is yes, first time while p_cardsum < 21 && doubled != 0 puts "What would you like to do? 1) hit 2) stay 0) Double" busted=0 hit_or_stay = gets.chomp doubled=hit_or_stay.to_i if !['0','1', '2'].include?(hit_or_stay) puts "Error: you must enter 0, 1 or 2" next end if doubled == 0 hit_or_stay = "1" if first_time_thru != 0 puts "You can only double once per hand" # exit # break elsif first_time_thru = 1 puts "You have #{p_bank} in the bank" puts "you had bet #{p_bet}" if p_bet > p_bank puts "Sorry, you do not have enough to double" # doubled=1 break else p_bank=p_bank-p_bet p_bet=p_bet*2 doubled=0 puts "Your bet is now #{p_bet} with #{p_bank} in the bank" end # break end end if hit_or_stay == "2" puts "You chose to stay." puts "Good luck sucker" puts "****" break end #hit new_card = deck.pop puts "Dealing card to player: #{new_card}" p_cards << new_card p_cardsum = calculate_total(p_cards) puts "Your total is now: #{p_cardsum}" if p_cardsum == 21 puts "Congratulations, you hit blackjack! You win!" p_bet=p_bet*2 p_bank=p_bank+p_bet puts "You won #{p_bet}" puts "You now have #{p_bank}" busted=1 # exit break elsif p_cardsum > 21 puts "Sorry, it looks like you busted!" busted=1 puts "" puts "You lost #{p_bet}" puts "You now have #{p_bank}" break # exit end end # Dealer’s turn if dealertotal == 21 && busted == 0 puts "Sorry, dealer hit blackjack. You lose." puts "You lost #{p_bet}" # p_bank=p_bank-p_bet puts "You now have #{p_bank}" busted=1 # break # exit end while dealertotal < 17 && busted == 0 #hit= new_card = deck.pop puts "Dealing new card for dealer: #{new_card}" dealercards << new_card dealertotal = calculate_total(dealercards) puts "Dealer total is now: #{dealertotal}" if dealertotal == 21 puts "Sorry, dealer hit blackjack. You lose." puts "You lost #{p_bet}" puts "You now have #{p_bank}" busted=1 break # exit elsif dealertotal > 21 puts "Congratulations, dealer busted! You win!" puts "You won #{p_bet}" p_bank=p_bank+p_bet+p_bet puts "You now have #{p_bank}" busted=1 break # exit end end # Compare hands puts "Dealer's cards: " dealercards.each do |card| puts "=> #{card}" end puts "" puts "Your cards:" p_cards.each do |card| puts "=> #{card}" end puts "" if (dealertotal <= 21 || p_cardsum <= 21) && busted == 0 if dealertotal > p_cardsum puts "Sorry, dealer wins." # p_bank=p_bank-p_bet puts "You lost #{p_bet}" puts "You now have #{p_bank}" elsif dealertotal < p_cardsum puts "Congratulations, you win!" puts "You won #{p_bet}" p_bank=p_bank+p_bet+p_bet puts "You now have #{p_bank}" else puts "It's a tie!" puts "You lucky dog, you got away this time" p_bank=p_bank+p_bet puts "You still have #{p_bank}" end end busted=0 if p_bank < 0 game_on=1 end # exit end puts "Thank you for playing" puts "You leave us with a bank of #{p_bank}"
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