simply-blackjack

A simple blackjack module to play and manage games.

Usage

You will need to require the package and create a game just like this:

const Blackjack = require('simply-blackjack');

const Game = new Blackjack({
  decks: 3,
  payouts: {
    blackjack: 1.5,
    default: 1
  }
});

Options

| Option | Description | Type | Default | |-------------------|----------------------------------------------------|--------|---------| | decks | The number of decks to use when dealing cards. | Number | 3 | | payouts | | Object | {} | | payouts.blackjack | The multiplier for winning blackjack. | Number | 1.5 | | payouts.default | The default multiplier for winning (No blackjack). | Number | 1 |

Variables

| Variable | Description | Type | Default | |------------|-----------------------------------------------------------------------------------------------------------|--------|--------------------------------| | deckAmount | The number of decks being used. | Number | 3 | | payouts | The object defining blackjack and default payouts. | Object | { blackjack: 1.5, default: 1 } | | state | The current state of the game (waiting, player_blackjack, player_win, draw, dealer_blackjack, dealer_win) | String | 'waiting' | | dealer | The dealers cards. | Array | [] | | player | The players cards. | Array | [] | | table | The current table, showing player and dealer cards (Minus hidden card) and their totals. | Object | {} | | betAmount | The amount the player is betting. | Number | |

Events

These are examples of the following events:

// This will fire when the game has reached the end
Game.on('end', (results) => {
  console.log(results);
  // Example output:
  // {
  //    state: 'dealer_win',
  //    bet: 20,
  //    winnings: 0,
  //    losses: 20,
  //    player: { total: 23, cards: [ [Object], [Object], [Object] ] },
  //    dealer: { total: 11, cards: [ [Object], [Object] ] }
  // }
});

Methods

Bet

This will update the players bet on the game. | Param | Type | Required | |--------|--------|----------| | Amount | Number | Yes |

// Updates your bet on the current game
Game.bet(20);

Start

This method will start the game and draw 2 cards for the player, and the dealer (One dealer card is hidden).

let cards = Game.start();

console.log(cards);
// Example output:
//{
//  "player": {
//    "total": 7,
//    "cards": [ 
//      {
//        "name": "5 of Clubs",
//        "suit": "Clubs",
//        "value": 5
//      },
//      {
//        "name": "2 of Diamonds",
//        "suit": "Diamonds",
//        "value": 2
//      }
//    ]
//  },
//  "dealer": {
//    "total": 10,
//    "cards": [
//      {
//        "name": "J of Hearts",
//        "suit": "Hearts",
//        "value": 10
//      }
//    ]
//  }
// }

Hit

This will give the player another card.

let cards = Game.hit();

console.log(cards);
// Example output:
// {
//   "name": "J of Clubs",
//   "suit": "Clubs",
//   "value": 10
// }

Stand

This will trigger the dealer to get dealt cards and trigger the end event.

// Tells the game you no longer want cards
Game.stand();