Blackjacked

Gemfile

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+source 'https://rubygems.org'
+gem 'sinatra'
+# Note: ERB is native to Ruby so doesn't need to be installed
+
+# only run this in the "development" environment
+group :development do
+  gem 'pry-byebug'    # for debugging
+  gem 'shotgun'
+end

Gemfile.lock

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+GEM
+  remote: https://rubygems.org/
+  specs:
+    byebug (9.0.5)
+    coderay (1.1.1)
+    method_source (0.8.2)
+    pry (0.10.4)
+      coderay (~> 1.1.0)
+      method_source (~> 0.8.1)
+      slop (~> 3.4)
+    pry-byebug (3.4.0)
+      byebug (~> 9.0)
+      pry (~> 0.10)
+    rack (1.6.4)
+    rack-protection (1.5.3)
+      rack
+    shotgun (0.9.1)
+      rack (>= 1.0)
+    sinatra (1.4.7)
+      rack (~> 1.5)
+      rack-protection (~> 1.4)
+      tilt (>= 1.3, < 3)
+    slop (3.6.0)
+    tilt (2.0.5)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  pry-byebug
+  shotgun
+  sinatra
+
+BUNDLED WITH
+   1.12.5

README.md

@@ -2,3 +2,6 @@
 Hit me baby one more time?
 
 [A Blackjack game using the Ruby Sinatra web application framework which uses object oriented programming, cookies, sessions, and JSON from the Viking Code School](http://www.vikingcodeschool.com)
+
+# animated gif
+![blackjack](blackjack_animated.gif)

app.rb

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+require 'sinatra'
+require 'erb'
+require 'pry-byebug'
+require './helpers/deck_helpers.rb'
+require './player.rb'
+require './deck.rb'
+helpers DeckHelper
+enable :sessions
+
+get '/' do
+  reset_bankroll
+  erb :home
+end
+
+get '/bet' do
+  erb :bet
+end
+
+post '/bet' do
+  if valid_bet(params[:bet].to_i)
+    set_player_bet(params[:bet].to_i)
+    create_deck(reset_bankroll: false)
+    if !player_blackjack && !dealer_blackjack
+      erb :blackjack
+    elsif player_blackjack && !dealer_blackjack
+      @blackjack = true
+      binding.pry
+      redirect "/blackjack/stay"
+    else
+      redirect "/blackjack/stay"
+    end
+  else
+    @error = "INSUFFICIENT_AMOUNT"
+    erb :bet
+  end
+end
+
+post '/blackjack/hit' do
+  deal_player
+  if player_busted? || player_blackjack
+    redirect "/blackjack/stay"
+  else
+    erb :blackjack
+  end
+end
+
+post '/blackjack/stay' do
+  if !player_busted?
+    while dealer_count < 17
+      deal_dealer
+    end
+  end
+  redirect "/blackjack/stay"
+end
+
+get '/blackjack/stay' do
+  @winner = compare_hands
+  @busted = busted_player
+  erb :gameover
+end

deck.rb

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+class Deck
+
+  attr_reader :cards
+  def initialize(cards = nil)
+    suits = ['H', 'D', 'S', 'C']
+    values = ['2', '3', '4', '5', '6', '7', '8', '9', '10', 'J', 'Q', 'K', 'A']
+    cards.nil? ? @cards = suits.product(values).shuffle! : @cards = cards
+  end
+
+  def pop
+    cards.pop
+  end
+end

helpers/deck_helpers.rb

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+module DeckHelper
+  BLACKJACK_AMT = 21
+
+  def create_deck(params = {})
+    @deck = Deck.new
+    @dealer = Player.new("Dealer", [])
+    @player = Player.new("Player", [])
+    session[:deck] = @deck.cards
+    session[:dealer_cards] = @dealer.hand
+    session[:player_cards] = @player.hand
+    session[:player_bankroll] = @player.bankroll if params[:reset_bankroll]
+    session[:blackjack_cards] = [['S', 'J'], ['S', 'A']]
+    2.times { deal_dealer ; deal_player }
+  end
+
+  def new_hand
+    @dealer = Player.new("Dealer", [])
+    @player = Player.new("Player", [])
+    session[:dealer_cards] = @dealer.hand
+    session[:player_cards] = @player.hand
+    2.times { deal_dealer ; deal_player }
+  end
+
+  def reset_bankroll
+    session[:player_bankroll] = Player.new("Player", []).bankroll
+  end
+
+  def dealer_hand
+    Player.new("Dealer", session[:dealer_cards]).hand
+  end
+
+  def player_hand
+    Player.new("Player", session[:player_cards]).hand
+  end
+
+  def deal_dealer
+    session[:dealer_cards] << Deck.new(session[:deck]).pop
+  end
+
+  def deal_player
+    session[:player_cards] << Deck.new(session[:deck]).pop
+  end
+
+  def player_busted?
+    Player.new("Player", session[:player_cards]).busted?
+  end
+
+  def dealer_busted?
+    Player.new("Dealer", session[:dealer_cards]).busted?
+  end
+
+  def player_count
+    Player.new("Player", session[:player_cards]).calculate_total
+  end
+
+  def dealer_count
+    Player.new("Dealer", session[:dealer_cards]).calculate_total
+  end
+
+  def player_blackjack
+    Player.new("Player", session[:player_cards]).calculate_total == 21
+  end
+
+  def dealer_blackjack
+    Player.new("Player", session[:dealer_cards]).calculate_total == 21
+  end
+
+  def busted_player
+    return "Player" if player_busted?
+    return "Dealer" if dealer_busted?
+  end
+
+  def set_player_bet(amount)
+    session[:player_bet] = amount
+    session[:player_bankroll] = session[:player_bankroll].to_i - amount.to_i
+  end
+
+  def valid_bet(amount)
+    amount <= Player.new("Player", session[:player_cards]).bankroll
+  end
+
+  def get_player_bet
+    session[:player_bet]
+  end
+
+  def player_bankroll
+    session[:player_bankroll]
+  end
+
+  def compare_hands
+    pl_cnt = player_count
+    dl_cnt = dealer_count
+    if pl_cnt > 21
+      "Dealer"
+    elsif dl_cnt > 21
+      session[:player_bankroll] += 2*session[:player_bet]
+      "Player"
+    elsif pl_cnt > dl_cnt
+      session[:player_bankroll] += 2*session[:player_bet]
+      session[:player_bankroll] += session[:player_bet] if player_blackjack
+      "Player"
+    elsif pl_cnt <  dl_cnt
+      "Dealer"
+    else
+      session[:player_bankroll] += session[:player_bet]
+      nil
+    end
+  end
+
+    def card_image(card)
+    suit = case card[0]
+      when 'H' then 'hearts'
+      when 'D' then 'diamonds'
+      when 'S' then 'spades'
+      when 'C' then 'clubs'
+    end
+
+    value = card[1]
+    if ['J', 'Q', 'K', 'A'].include?(value)
+      value = case value
+        when 'J' then 'jack'
+        when 'Q' then 'queen'
+        when 'K' then 'king'
+        when 'A' then 'ace'
+      end
+    end
+    "<img src='/images/cards/#{suit}_#{value}.jpg' class=card_image/>"
+  end
+
+end

player.rb

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+require 'pry'
+class Player
+  attr_accessor :name, :hand, :bankroll
+  def initialize(name, hand)
+    @name = name
+    @hand = hand
+    @bankroll = 1000
+  end
+
+  def bet(amount)
+    @bet = amount
+  end
+
+  def deal(deck)
+    @hand << deck.pop
+  end
+
+  def busted?
+    calculate_total > 21
+  end
+
+  def calculate_total
+    lcl_hand = hand
+    arr = lcl_hand.map{|e| e[1] }
+    total = 0
+    arr.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
+    arr.select{|e| e == "A"}.count.times do
+      total -= 10 if total > 21
+    end
+    total
+  end
+end

public/reset.css

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+/* http://meyerweb.com/eric/tools/css/reset/
+   v2.0 | 20110126
+   License: none (public domain)
+*/
+
+html, body, div, span, applet, object, iframe,
+h1, h2, h3, h4, h5, h6, p, blockquote, pre,
+a, abbr, acronym, address, big, cite, code,
+del, dfn, em, img, ins, kbd, q, s, samp,
+small, strike, strong, sub, sup, tt, var,
+b, u, i, center,
+dl, dt, dd, ol, ul, li,
+fieldset, form, label, legend,
+table, caption, tbody, tfoot, thead, tr, th, td,
+article, aside, canvas, details, embed,
+figure, figcaption, footer, header, hgroup,
+menu, nav, output, ruby, section, summary,
+time, mark, audio, video {
+	margin: 0;
+	padding: 0;
+	border: 0;
+	font-size: 100%;
+	font: inherit;
+	vertical-align: baseline;
+}
+ HTML5 display-role reset for older browsers
+article, aside, details, figcaption, figure,
+footer, header, hgroup, menu, nav, section {
+	display: block;
+}
+body {
+	line-height: 1;
+}
+ol, ul {
+	list-style: none;
+}
+blockquote, q {
+	quotes: none;
+}
+blockquote:before, blockquote:after,
+q:before, q:after {
+	content: '';
+	content: none;
+}
+table {
+	border-collapse: collapse;
+	border-spacing: 0;
+}

public/styles.css

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+body {
+  background-color: #ccc;
+  font-family: helvetica, Arial, sans-serif;
+}
+.my-navbar {
+  margin-bottom: 10px;
+}
+.icon {
+  width: 32px;
+  height: 32px;
+}
+nav p {
+  display: inline-block;
+  margin-top: 12px;
+  font-size: 18px;
+  font-weight: bold;
+}
+.brand {
+  margin-top: 8px;
+  padding-top: 0;
+}
+.right {
+  float: right;
+}
+
+.bet-button {
+  margin-top: 10px;
+}
+
+img.card_image {
+  margin: 0px 5px 5px 0px;
+}