40 lines
639 B
JavaScript
40 lines
639 B
JavaScript
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class CardPile {
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constructor() {
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this.cards = new Set();
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}
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add(cardName) {
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this.cards.add(cardName);
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}
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has(cardName) {
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return this.cards.has(cardName);
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}
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get size() {
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return this.cards.size;
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}
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drawRandom() {
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const size = this.cards.size
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if (size === 0) {
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return null;
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}
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const index = Math.floor(Math.random() * Math.floor(size));
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let i = 0;
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let cardName = "";
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for (let card of this.cards) {
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if (i === index) {
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cardName = card;
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break
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}
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i++;
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}
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this.cards.delete(cardName);
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return cardName;
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}
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}
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export default CardPile;
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