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gistfile1.rb

#start a new game by calling Game.new with player names as params, i.e. g = Game.new("Nick", "Mike")
#the Game object will contain the deck & the players.
#A new Deck will be automatically reloaded as soon as all cards are gone.
#As a result, you can play endless hands of blackjack.



SUITS = %w{clubs hearts spades diamonds}
VALUES = ["2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K", "A"]
AMOUNTS = [2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11]

Card = Struct.new(:value, :suit, :amount)

def prompt
  print "> "
end

class Deck < Array

	attr_accessor :deck

	def initialize
		SUITS.each do |suit|
		  VALUES.each_with_index do |value, index|	
		  	self << Card.new(value, suit, AMOUNTS[index])
		  end
		end
		self.shuffle_cards
	end

	def shuffle_cards
		self.shuffle!
	end

end


class Game

	attr_accessor :deck, :game

	def initialize(names)
		@deck = Deck.new
		@game = {}

		add_players(names)
	end

	def add_players(names)
		names.each do |name|
			@game["player_#{name}"] = Player.new("#{name}")
		end
	end

	def load_new_deck
		@deck = Deck.new
	end

	def initial_deal
    @game.each_key do |player|
    	2.times do
    		
    		if @deck.empty? == true
    			load_new_deck
		 	    @game[player].hand << @deck.pop
		 	  else
		 	  	@game[player].hand << @deck.pop
		 	  end

		 	end
		end

		 return @game
	end

	def card_count(player)
		card_count = 0
		@game[player].hand.each do |card|
			card_count += card.amount
		end
		card_count
	end

	def play_hand
		deal_new_hand
		player_actions
    determine_winning_hand
    scoreboard
    play_more_or_exit
	end

	def player_actions
		@game.each_key do |player| 
		  hand_count = card_count(player)
		  puts "----- #{@game[player].name}'s turn ------"

		  puts "#{@game[player].name} has blackjack!" if hand_count == 21

		  while hand_count < 21
		  	puts "hit or stand?"
		  	action = gets.chomp

				if action == "hit"
					puts "#{@game[player].name} hits."
					hit(player)
					hand_count = card_count(player)
				elsif action == "stand"
					break stand(player)
				else 
					puts "sorry. please type hit or stand:"
				end
			end

	   	if hand_count > 21
	   		puts "#{@game[player].name} busts!"
	   	end

	   	@game[player].final_hand_count = hand_count
	   	@game[player].final_hand_count = 0 if hand_count > 21

    end
  end

  	def dealer_actions
		@game.each_key do |player| 
		  hand_count = card_count(player)
		  puts "\n\n----- #{@game[player].name}'s turn ------"

			until hand_count > 16
				puts "#{@game[player].name} hits."
				hit(player)
				hand_count = card_count(player)
	   	end

	   	if hand_count > 21
	   		puts "#{@game[player].name} busts!"
	   	elsif hand_count == 21
	   		puts "#{@game[player].name} has blackjack!"  
	   	elsif hand_count < 21 
	   		stand(player)
	   	end

	   	@game[player].final_hand_count = hand_count
	   	@game[player].final_hand_count = 0 if hand_count > 21

    end
  end

	def deal_new_hand
		@game.each_key do |player|
    	@game[player].hand.clear
    end

		initial_deal
		puts "---- Initial Deal ----"

    @game.each_key do |player|
    	puts "#{@game[player].name} was dealt #{card_count(player)}"
    end
	end

	def determine_winning_hand
		highest_hand = 0
    winner = "TBD"

    @game.each_key do |player| 

    	puts "#{@game[player].name}'s final hand is #{@game[player].final_hand_count}"

			if @game[player].final_hand_count > highest_hand
				highest_hand = @game[player].final_hand_count
				winner = @game[player]
			end 
    end

    if highest_hand == 0
    	puts "\n==== Both hands busted! No winner! ===="
    else
      puts "\n==== the winner is #{winner.name}. ===="
      winner.total_score += 1
    end
	end

	def scoreboard
		puts "\n************ SCOREBOARD"
    @game.each_key do |player| 
    	puts "#{@game[player].name}'s total score is #{@game[player].total_score}"
    end
  end

  def play_more_or_exit
    puts "play another hand?"
    prompt

    response = gets.chomp
    if response == "y" || response == "yes"
    	play_hand
    else
    	Process.exit
    end
  end

	def hit(player)
		if @deck.empty? == true
			load_new_deck
			puts "Loading a new deck."
		end

		new_card = @deck.pop
		@game[player].hand << new_card
		puts "#{@game[player].name} receives a new card: #{new_card.value} of #{new_card.suit}"

	end

	def stand(player)
		puts "#{@game[player].name} stands."
	end

end


class Player

	attr_accessor :name, :hand, :final_hand_count, :total_score

	def initialize(name)
		@name = name
		@hand = []
		@final_hand_count = 0
		@total_score = 0
	end

	def hand_count
		hand_count = 0
		
		@hand.each do |card|
			hand_count += card.amount
		end
		return hand_count
	end

end


print "Name each player, separated by a comma"
prompt
names = gets.chomp.split(',').collect(&:strip)
g = Game.new(names)
g.play_hand