mbarley333 / blackjack

Blackjack

Blackjack is a command line version of the classic game written in Go

Built with Aloha in Hawaii 🌊

Thank you to @bitfield for all of his mentoring on my Go journey!

Installation options

1. For Mac or Linux, execute the install.sh file

curl https://raw.githubusercontent.com/mbarley333/blackjack/main/install.sh | sh

2. For all OS

• Download the prebuilt binaries for your OS from the Releases section
• Unzip
• For Mac on first usage, open Finder and locate the unzipped file Right Click on file > Open
• cd to folder

./blackjack

Blackjack features

• All Blackjacks pay 2:1
• Split
• Double down
• Minimum bet $1
• Minimum 83% deck penetration before reshuffle
• Six deck shoe
• Card counting allowed and provided via HiLo method
• AI Players (Basic Strategy or Stand Only)
• Hints for Hit, Stand, Double and Split decisions
• Emojis!!! [A♠][J♥][A♥][K♦]

Getting started

./blackjack -help

        Parameters:
          humanPlayers     Number of human players.  Default is 1
          aiPlayers        Number of Ai players.  Default is 0
          deckCount        Number of decks in shoe.  Default is 6

        Usage:
        ./blackjack -humanPlayers 1 -aiPlayers 1 -deckCount 7

• Set parameters if you want to change the defaults. Otherwise, just execute as: ./blackjack
• Enter name of human player(s)
• Enter name of any Ai player(s)
• For Ai, choose either (B)asic Strategy or (S)tand Only
  • Basic Strategy will choose the best play based on player's hand vs dealer's up card
  • Stand Only will only stand regardless of player's hand
• For Ai, enter number of rounds to play
• From any command line, as a human player, enter "c" to get the card count and the true count
• In game hint available when "?" is displayed from command line

Player1 has 11: [3♦][8♣]
Dealer has ??: [??][7♠]


Player1 has 11: [3♦][8♣]
Player1 please choose (H)it, (D)ouble, (S)tand (?)Hint: ?
The suggested action is to Double Down

Adding a custom AI

• Clone repo to desktop and cd
• Add new AI player algo to blackjack/ai.go
• Open blackjack/blackjack.go
• Update the x value for the PlayerTypeInput map
• Update the PlayerTypeAiCustom value for the PlayerTypeBetMap
• Build

var PlayerTypeInputMap = map[string]PlayerType{
	"h": PlayerTypeHuman,
	"b": PlayerTypeAiBasic,
	"s": PlayerTypeAiStandOnly,
	"x": PlayerTypeAiBasic,
}

var PlayerTypeBetMap = map[PlayerType]func(io.Writer, io.Reader, *Player, int, CardCounter) error{
	PlayerTypeHuman:       HumanBet,
	PlayerTypeAiStandOnly: AiBet,
	PlayerTypeAiBasic:     AiBet,
	PlayerTypeAiCustom:    AiBet,