janaxs / blackjack

"use strict";

class Card {

    /**

     * @constructor

     *

     * @param {object} options - Configure by sending options.

     */

    constructor(options = {}) {

        this.suits   = options.suits || ["♣", "♦", "♠", "♥"];

        this.pipFace = options.pipFace || [

            "A", "2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K"

        ];

        this.rank = options.rank || [

            14, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13

        ];

        this.ranks      = this.pipFace.length;

        this.numOfCards = this.ranks * this.suits.length;

    }

    /**

     * Get a card to display based on the id of the card.

     *

     * @param {integer} id - The id of the card.

     *

     * @returns {string} A string representing the card.

     */

    getCard(id) {

        var suit;

        var pipFace;

        if (id < 0 || id >= this.numOfCards) {

            return undefined;

        }

        suit    = Math.floor(id / this.ranks);

        pipFace = Math.floor(id % this.ranks);

        return this.suits[suit] + this.pipFace[pipFace];

    }

    /**

     * Get the card rank from its id.

     *

     *

     * @returns {integer} A value representing its rank.

     */

    getRank(id) {

        if (id < 0 || id >= this.numOfCards) {

            return undefined;

        }

        return this.rank[Math.floor(id % this.ranks)];

    }

}

module.exports = Card;