Blackjack

• Terminal version of the classic Blackjack card game written in Ruby. Please note specific house rules outlined on this page

Overview

• Run the command bundle install in your terminal
• To play, then run ruby lib/blackjack.rb in your terminal
• This game supports multiple players: currently it is set to one player vs. a dealer
  • To add more, utilize the add_player method in the blackjack.rb file and save your changes before running the game
  • Reference the commented out add_player invocations at the bottom of the file as an example

Testing

• Written in RSpec
• To test all at once: run command bundle exec rspec
• To test individual spec files:
  • run, for ex: bundle exec rspec ./spec/dealer_spec.rb

House Rules

• Each player starts with a bankroll of $1000
• Each round begins with players entering their bets
  • The minimum bet is $2
  • The maximum is equal to the current value of the players bankroll
• The deck is shuffled prior to each round
• 2 cards are dealt to each player and the dealer from a standard deck of 52 cards
  • The dealer's 2nd card will be face down until the players complete their turns
  • An ace counts as a 1 or 11
  • Face cards are 10 and any other card is its pip value
• The dealer will always hit until the value of their hand is >= 17 points
• Players play against the dealer - multiple players can win
  • If a player's hand is not busted (over 21) and has a higher score than the dealer, the player will receive their bet double at the end of the round
  • Otherwise, the player will lose the amount they bet (ties with the dealer are considered a loss)
• Bets are reset after each round
• If a player goes bankrupt, they are out of the game
• Rounds are unlimited and the game is only over when all of the players go bankrupt (in this case, when they can't afford the minimum bet of $2)

Ruby Concepts (personal use)

• RSpec
  • Unit Testing
    • Test doubles
    • Cases where the dup method is vital
    • respond_to for checking if variables are exposed
    • When to use context block
  • Integration Testing
• send method
• colorize gem
  • background argument for rendering cards
• Freezing constants
• Overriding ==
• Overriding to_s
• Class inheritance
• product method - to create a deck of cards
• splat operator - to return cards to deck w/out nested arrays
• shift(n) method