Add the Deck object made for Phantom-Ink-Online

server/src/objects/Deck.ts

@@ -0,0 +1,66 @@
+export class Deck<T> {
+	private _discard: T[];
+	private _unknown: T[];
+	private _deck: T[];
+
+
+	constructor(cards: T[]) {
+		this._deck = cards;
+		this._discard = [];
+		this._unknown = [];
+	};
+
+
+	get size(): number { return this._deck.length; }
+
+
+	/**
+	 * Draws X cards from the deck
+	 *
+	 * @param quantity The number of cards to draw
+	 * @throws Error If quantity is <= 0
+	 * @throws Error If quantity > size
+	 */
+	public draw(quantity: number): T[] {
+		if (quantity <= 0) {
+			throw new Error(`Cannot get ${quantity} cards.`);
+		} else if (quantity > this.size) {
+			throw new Error(`Cannot draw more cards than there are in the deck.`);
+		};
+
+		let cards: T[] = [];
+
+		// Draw the cards for the player and move them into the unknown group
+		for (var i = 0; i < quantity; i++) {
+
+			// Determine the card for the player(s)
+			let index = Math.floor(Math.random() * this.size);
+			let card = this._deck[index];
+
+			// Move it from the arrays
+			cards.push(card);
+			this._deck.splice(index, 1);
+			this._unknown.push(card);
+		};
+
+		return cards;
+	};
+
+
+	/**
+	 * Adds the specific card to the discard pile
+	 *
+	 * @param card The card to add to the discard pile
+	 */
+	public discard(card: T) {
+		this._unknown = this._unknown.filter(x => x != card);
+		this._discard.push(card);
+	};
+
+
+	public reset() {
+		this._deck.push(...this._discard, ...this._unknown);
+		this._discard = [];
+		this._unknown = [];
+	};
+};