127 lines
3.2 KiB
JavaScript
Executable File
127 lines
3.2 KiB
JavaScript
Executable File
/*
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* The game object holds everything.
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* All the locations, players, characters, items, npcs, quests, loot, etc.
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*
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* It is a pseudo-singleton in that you should only ever create one.
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*
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* Serializing this object effectively saves the game.
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*/
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import { isIdSane, miniUid } from "../utils/id.js";
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import { Xorshift32 } from "../utils/random.js";
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import { Character } from "./character.js";
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import { ItemAttributes, ItemBlueprint } from "./item.js";
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import { Player } from "./player.js";
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export class Game {
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_counter = 1_000_000;
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/** @type {Map<string,ItemBlueprint>} List of all item blueprints in the game */
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_itemBlueprints = new Map();
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/** @type {Map<string,Location>} The list of locations in the game */
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_locations = new Map();
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/**
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* The characters in the game.
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*
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* @protected
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* @type {Map<string,Character>}
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*/
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_characters = new Map();
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/*
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* @protected
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* @type {Map<string,Player>} Map of users in the game username->Player
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*/
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_players = new Map();
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/** @protected @type {Xorshift32} */
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_random;
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/** @type {Xorshift32} */
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get random() {
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return this._random;
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}
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/** @param {number} rngSeed Seed number used for randomization */
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constructor() {
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this.rngSeed = Date.now();
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}
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set rngSeed(rngSeed) {
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this._random = new Xorshift32(rngSeed);
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}
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getPlayer(username) {
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return this._players.get(username);
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}
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/**
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* Atomic player creation.
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*
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* @param {string} username
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* @param {string?} passwordHash
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* @param {string?} salt
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*
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* @returns {Player|null} Returns the player if username wasn't already taken, or null otherwise.
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*/
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createPlayer(username, passwordHash = undefined, salt = undefined) {
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if (this._players.has(username)) {
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return false;
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}
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const player = new Player(
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username,
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typeof passwordHash === "string" ? passwordHash : "",
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typeof salt === "string" && salt.length > 0 ? salt : miniUid(),
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);
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this._players.set(username, player);
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return player;
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}
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/**
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* Create an ItemBlueprint with a given blueprintId
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*
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* @param {string} blueprintId
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* @param {ItemAttributes} attributes
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*
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* @returns {ItemBlueprint|false}
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*/
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addItemBlueprint(blueprintId, attributes) {
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if (typeof blueprintId !== "string" || !blueprintId) {
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throw new Error("Invalid blueprintId!");
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}
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const existing = this._itemBlueprints.get(blueprintId);
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if (existing) {
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console.debug("we tried to create the same item blueprint more than once", blueprintId, attributes);
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return existing;
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}
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attributes.blueprintId = blueprintId;
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const result = new ItemBlueprint(attributes);
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this._itemBlueprints.set(blueprintId, result);
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return result;
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}
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/**
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* @param {string} blueprintId
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* @returns {ItemBlueprint?}
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*/
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getItemBlueprint(blueprintId) {
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if (!isIdSane(blueprintId)) {
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throw new Error(`blueprintId >>${blueprintId}<< is insane!`);
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}
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const tpl = this._itemBlueprints.get(blueprintId);
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return tpl || undefined;
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}
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}
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