blackjack/js/Hand.js

class Hand {
    cards;
    points;

    constructor() {
        this.cards = [];
    }

    static create() {
        return new Hand();
    }

    static createDealerHand() {
        let dealerHand = new Hand();
        dealerHand.isDealer = true;

        return dealerHand;
    }

    /**
     * Adds given Card to the hand
     * @param {Card} drawnCard
     */
    pickCard(drawnCard) {
        if (drawnCard.ace && this.points > 10) {
            drawnCard.points = 1;
        }

        this.cards.push(drawnCard);
        this.points = (this.points + drawnCard.points);
    }

    includesAces(hand) {
        let aceCount = 0;

        hand.forEach((card) => {
            if (card.ace === true) {
                aceCount++;
            }
        });

        return aceCount;
    }

    hasBlackjack() {
        return this.points === 21;
    }

    isPlus() {
        return this.points > 21;
    }
}