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refactor singletons to their own folder
This commit is contained in:
AlecM33
524
server/modules/singletons/GameManager.js
Normal file
524
server/modules/singletons/GameManager.js
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@@ -0,0 +1,524 @@
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const globals = require('../../config/globals');
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const Game = require('../../model/Game');
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const Person = require('../../model/Person');
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const GameStateCurator = require('../GameStateCurator');
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const UsernameGenerator = require('../UsernameGenerator');
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const GameCreationRequest = require('../../model/GameCreationRequest');
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class GameManager {
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constructor (logger, environment, activeGameRunner) {
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if (GameManager.instance) {
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throw new Error('The server tried to instantiate more than one GameManager');
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}
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logger.info('CREATING SINGLETON GAME MANAGER');
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this.logger = logger;
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this.environment = environment;
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this.activeGameRunner = activeGameRunner;
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this.namespace = null;
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GameManager.instance = this;
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}
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setGameSocketNamespace = (namespace) => {
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this.namespace = namespace;
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};
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createGame = (gameParams) => {
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this.logger.debug('Received request to create new game.');
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return GameCreationRequest.validate(gameParams).then(() => {
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const req = new GameCreationRequest(
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gameParams.deck,
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gameParams.hasTimer,
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gameParams.timerParams,
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gameParams.moderatorName,
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gameParams.hasDedicatedModerator
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);
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this.pruneStaleGames();
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const newAccessCode = this.generateAccessCode(globals.ACCESS_CODE_CHAR_POOL);
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if (newAccessCode === null) {
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return Promise.reject(globals.ERROR_MESSAGE.NO_UNIQUE_ACCESS_CODE);
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}
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const moderator = initializeModerator(req.moderatorName, req.hasDedicatedModerator);
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moderator.assigned = true;
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if (req.timerParams !== null) {
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req.timerParams.paused = false;
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}
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const newGame = new Game(
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newAccessCode,
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globals.STATUS.LOBBY,
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initializePeopleForGame(req.deck, moderator, this.shuffle),
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req.deck,
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req.hasTimer,
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moderator,
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req.hasDedicatedModerator,
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moderator.id,
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new Date().toJSON(),
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req.timerParams
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);
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this.activeGameRunner.activeGames.set(newAccessCode, newGame);
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return Promise.resolve({ accessCode: newAccessCode, cookie: moderator.cookie, environment: this.environment });
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}).catch((message) => {
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this.logger.debug('Received invalid request to create new game.');
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return Promise.reject(message);
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});
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};
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startGame = (game, namespace) => {
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if (game.isFull) {
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game.status = globals.STATUS.IN_PROGRESS;
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if (game.hasTimer) {
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game.timerParams.paused = true;
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this.activeGameRunner.runGame(game, namespace);
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}
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namespace.in(game.accessCode).emit(globals.EVENT_IDS.START_GAME);
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}
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};
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pauseTimer = (game, logger) => {
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const thread = this.activeGameRunner.timerThreads[game.accessCode];
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if (thread && !thread.killed) {
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this.logger.debug('Timer thread found for game ' + game.accessCode);
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thread.send({
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command: globals.GAME_PROCESS_COMMANDS.PAUSE_TIMER,
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accessCode: game.accessCode,
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logLevel: this.logger.logLevel
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});
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}
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};
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resumeTimer = (game, logger) => {
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const thread = this.activeGameRunner.timerThreads[game.accessCode];
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if (thread && !thread.killed) {
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this.logger.debug('Timer thread found for game ' + game.accessCode);
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thread.send({
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command: globals.GAME_PROCESS_COMMANDS.RESUME_TIMER,
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accessCode: game.accessCode,
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logLevel: this.logger.logLevel
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});
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}
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};
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getTimeRemaining = (game, socket) => {
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const thread = this.activeGameRunner.timerThreads[game.accessCode];
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if (thread && (!thread.killed && thread.exitCode === null)) {
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thread.send({
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command: globals.GAME_PROCESS_COMMANDS.GET_TIME_REMAINING,
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accessCode: game.accessCode,
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socketId: socket.id,
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logLevel: this.logger.logLevel
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});
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} else if (thread) {
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if (game.timerParams && game.timerParams.timeRemaining === 0) {
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this.namespace.to(socket.id).emit(globals.GAME_PROCESS_COMMANDS.GET_TIME_REMAINING, game.timerParams.timeRemaining, game.timerParams.paused);
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}
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}
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};
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revealPlayer = (game, personId) => {
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const person = game.people.find((person) => person.id === personId);
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if (person && !person.revealed) {
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this.logger.debug('game ' + game.accessCode + ': revealing player ' + person.name);
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person.revealed = true;
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this.namespace.in(game.accessCode).emit(
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globals.EVENT_IDS.REVEAL_PLAYER,
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{
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id: person.id,
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gameRole: person.gameRole,
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alignment: person.alignment
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});
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}
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};
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changeName = (game, data, ackFn) => {
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const person = findPersonByField(game, 'id', data.personId);
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if (person) {
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if (!isNameTaken(game, data.name)) {
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ackFn('changed');
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person.name = data.name.trim();
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person.hasEnteredName = true;
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this.namespace.in(game.accessCode).emit(globals.EVENT_IDS.CHANGE_NAME, person.id, person.name);
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} else {
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ackFn('taken');
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}
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}
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};
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endGame = (game) => {
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game.status = globals.STATUS.ENDED;
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if (this.activeGameRunner.timerThreads[game.accessCode]) {
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this.logger.trace('KILLING TIMER PROCESS FOR ENDED GAME ' + game.accessCode);
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this.activeGameRunner.timerThreads[game.accessCode].kill();
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}
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for (const person of game.people) {
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person.revealed = true;
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}
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this.namespace.in(game.accessCode).emit(globals.EVENT_IDS.END_GAME, GameStateCurator.mapPeopleForModerator(game.people));
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};
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checkAvailability = (code) => {
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const game = this.activeGameRunner.activeGames.get(code.toUpperCase().trim());
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if (game) {
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return Promise.resolve({ accessCode: code, playerCount: getGameSize(game.deck), timerParams: game.timerParams });
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} else {
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return Promise.resolve(404);
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}
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};
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generateAccessCode = (charPool) => {
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const charCount = charPool.length;
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let codeDigits, accessCode;
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let attempts = 0;
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while (!accessCode || (this.activeGameRunner.activeGames.get(accessCode) && attempts < globals.ACCESS_CODE_GENERATION_ATTEMPTS)) {
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codeDigits = [];
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let iterations = globals.ACCESS_CODE_LENGTH;
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while (iterations > 0) {
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iterations --;
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codeDigits.push(charPool[getRandomInt(charCount)]);
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}
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accessCode = codeDigits.join('');
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attempts ++;
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}
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return this.activeGameRunner.activeGames.get(accessCode)
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? null
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: accessCode;
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};
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transferModeratorPowers = (socket, game, person, namespace, logger) => {
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if (person && (person.out || person.userType === globals.USER_TYPES.SPECTATOR)) {
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let spectatorsUpdated = false;
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if (game.spectators.includes(person)) {
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game.spectators.splice(game.spectators.indexOf(person), 1);
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spectatorsUpdated = true;
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}
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logger.debug('game ' + game.accessCode + ': transferring mod powers to ' + person.name);
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if (game.moderator === person) {
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person.userType = globals.USER_TYPES.MODERATOR;
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this.namespace.to(person.socketId).emit(globals.EVENTS.SYNC_GAME_STATE);
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socket.to(game.accessCode).emit(globals.EVENT_IDS.KILL_PLAYER, person.id);
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} else {
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const oldModerator = game.moderator;
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if (game.moderator.userType === globals.USER_TYPES.TEMPORARY_MODERATOR) {
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game.moderator.userType = globals.USER_TYPES.PLAYER;
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} else if (game.moderator.gameRole) { // the current moderator was at one point a dealt-in player.
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game.moderator.userType = globals.USER_TYPES.KILLED_PLAYER; // restore their state from before being made mod.
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} else if (game.moderator.userType === globals.USER_TYPES.MODERATOR) {
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game.moderator.userType = globals.USER_TYPES.SPECTATOR;
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game.spectators.push(game.moderator);
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spectatorsUpdated = true;
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}
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person.userType = globals.USER_TYPES.MODERATOR;
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game.moderator = person;
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if (spectatorsUpdated === true) {
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namespace.in(game.accessCode).emit(
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globals.EVENTS.UPDATE_SPECTATORS,
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game.spectators.map((spectator) => GameStateCurator.mapPerson(spectator))
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);
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}
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this.namespace.to(person.socketId).emit(globals.EVENTS.SYNC_GAME_STATE);
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this.namespace.to(oldModerator.socketId).emit(globals.EVENTS.SYNC_GAME_STATE);
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}
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}
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};
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killPlayer = (socket, game, person, namespace, logger) => {
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if (person && !person.out) {
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logger.debug('game ' + game.accessCode + ': killing player ' + person.name);
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if (person.userType !== globals.USER_TYPES.TEMPORARY_MODERATOR) {
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person.userType = globals.USER_TYPES.KILLED_PLAYER;
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}
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person.out = true;
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// temporary moderators will transfer their powers automatically to the first person they kill.
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if (game.moderator.userType === globals.USER_TYPES.TEMPORARY_MODERATOR) {
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this.transferModeratorPowers(socket, game, person, namespace, logger);
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} else {
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namespace.in(game.accessCode).emit(globals.EVENT_IDS.KILL_PLAYER, person.id);
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}
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}
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};
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joinGame = (game, name, cookie, joinAsSpectator) => {
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const matchingPerson = findPersonByField(game, 'cookie', cookie);
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if (matchingPerson) {
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return Promise.resolve(matchingPerson.cookie);
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}
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if (isNameTaken(game, name)) {
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return Promise.reject({ status: 400, reason: 'This name is taken.' });
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}
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if (joinAsSpectator && game.spectators.length === globals.MAX_SPECTATORS) {
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return Promise.reject({ status: 400, reason: 'There are too many people already spectating.' });
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} else if (joinAsSpectator) {
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return addSpectator(game, name, this.logger, this.namespace);
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}
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const unassignedPerson = game.moderator.assigned === false
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? game.moderator
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: game.people.find((person) => person.assigned === false);
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if (unassignedPerson) {
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this.logger.trace('request from client to join game. Assigning: ' + unassignedPerson.name);
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unassignedPerson.assigned = true;
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unassignedPerson.name = name;
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game.isFull = isGameFull(game);
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this.namespace.in(game.accessCode).emit(
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globals.EVENTS.PLAYER_JOINED,
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GameStateCurator.mapPerson(unassignedPerson),
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game.isFull
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);
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return Promise.resolve(unassignedPerson.cookie);
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} else {
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if (game.spectators.length === globals.MAX_SPECTATORS) {
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return Promise.reject({ status: 400, reason: 'This game has reached the maximum number of players and spectators.' });
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}
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return addSpectator(game, name, this.logger, this.namespace);
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}
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};
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restartGame = async (game, namespace) => {
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// kill any outstanding timer threads
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const subProcess = this.activeGameRunner.timerThreads[game.accessCode];
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if (subProcess) {
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if (!subProcess.killed) {
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this.logger.info('Killing timer process ' + subProcess.pid + ' for: ' + game.accessCode);
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this.activeGameRunner.timerThreads[game.accessCode].kill();
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}
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this.logger.debug('Deleting reference to subprocess ' + subProcess.pid);
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delete this.activeGameRunner.timerThreads[game.accessCode];
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}
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// re-shuffle the deck
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const cards = [];
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for (const card of game.deck) {
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for (let i = 0; i < card.quantity; i ++) {
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cards.push(card);
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}
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}
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this.shuffle(cards);
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// make sure no players are marked as out or revealed, and give them new cards.
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for (let i = 0; i < game.people.length; i ++) {
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if (game.people[i].out) {
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game.people[i].out = false;
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}
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if (game.people[i].userType === globals.USER_TYPES.KILLED_PLAYER) {
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game.people[i].userType = globals.USER_TYPES.PLAYER;
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}
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game.people[i].revealed = false;
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game.people[i].gameRole = cards[i].role;
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game.people[i].gameRoleDescription = cards[i].description;
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game.people[i].alignment = cards[i].team;
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}
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/* If there is currently a dedicated mod, and that person was once a player (i.e. they have a game role), make
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them a temporary mod for the restarted game.
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*/
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if (game.moderator.gameRole && game.moderator.userType === globals.USER_TYPES.MODERATOR) {
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game.moderator.userType = globals.USER_TYPES.TEMPORARY_MODERATOR;
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}
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// start the new game
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game.status = globals.STATUS.IN_PROGRESS;
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if (game.hasTimer) {
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game.timerParams.paused = true;
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this.activeGameRunner.runGame(game, namespace);
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}
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namespace.in(game.accessCode).emit(globals.EVENT_IDS.RESTART_GAME);
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};
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handleRequestForGameState = async (game, namespace, logger, gameRunner, accessCode, personCookie, ackFn, clientSocket) => {
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const matchingPerson = findPersonByField(game, 'cookie', personCookie);
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if (matchingPerson) {
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if (matchingPerson.socketId === clientSocket.id) {
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logger.debug('matching person found with an established connection to the room: ' + matchingPerson.name);
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ackFn(GameStateCurator.getGameStateFromPerspectiveOfPerson(game, matchingPerson));
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} else {
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logger.debug('matching person found with a new connection to the room: ' + matchingPerson.name);
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clientSocket.join(accessCode);
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matchingPerson.socketId = clientSocket.id;
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ackFn(GameStateCurator.getGameStateFromPerspectiveOfPerson(game, matchingPerson));
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}
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} else {
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rejectClientRequestForGameState(ackFn);
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}
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};
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removeClientFromLobbyIfApplicable (socket) {
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socket.rooms.forEach((room) => {
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if (this.activeGameRunner.activeGames.get(room)) {
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this.logger.trace('disconnected socket is in a game');
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const game = this.activeGameRunner.activeGames.get(room);
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if (game.status === globals.STATUS.LOBBY) {
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const matchingPlayer = findPlayerBySocketId(game.people, socket.id);
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if (matchingPlayer) {
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this.logger.trace('un-assigning disconnected player: ' + matchingPlayer.name);
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matchingPlayer.assigned = false;
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matchingPlayer.socketId = null;
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matchingPlayer.cookie = createRandomId();
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matchingPlayer.hasEnteredName = false;
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socket.to(game.accessCode).emit(
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globals.EVENTS.PLAYER_LEFT,
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GameStateCurator.mapPerson(matchingPlayer)
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);
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game.isFull = isGameFull(game);
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matchingPlayer.name = UsernameGenerator.generate();
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}
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}
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}
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});
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}
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/*
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-- To shuffle an array a of n elements (indices 0..n-1):
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for i from n−1 downto 1 do
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j ← random integer such that 0 ≤ j ≤ i
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exchange a[j] and a[i]
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*/
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shuffle = (array) => {
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for (let i = array.length - 1; i > 0; i --) {
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const j = Math.floor(Math.random() * (i + 1));
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const temp = array[j];
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array[j] = array[i];
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array[i] = temp;
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}
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return array;
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};
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pruneStaleGames = () => {
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this.activeGameRunner.activeGames.forEach((value, key) => {
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if (value.createTime) {
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const createDate = new Date(value.createTime);
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if (createDate.setHours(createDate.getHours() + globals.STALE_GAME_HOURS) < Date.now()) {
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this.logger.info('PRUNING STALE GAME ' + key);
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this.activeGameRunner.activeGames.delete(key);
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if (this.activeGameRunner.timerThreads[key]) {
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this.logger.info('KILLING STALE TIMER PROCESS FOR ' + key);
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this.activeGameRunner.timerThreads[key].kill();
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delete this.activeGameRunner.timerThreads[key];
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}
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||||
}
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||||
}
|
||||
});
|
||||
};
|
||||
}
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function getRandomInt (max) {
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return Math.floor(Math.random() * Math.floor(max));
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}
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function initializeModerator (name, hasDedicatedModerator) {
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const userType = hasDedicatedModerator
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? globals.USER_TYPES.MODERATOR
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: globals.USER_TYPES.TEMPORARY_MODERATOR;
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return new Person(createRandomId(), createRandomId(), name, userType);
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||||
}
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||||
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||||
function initializePeopleForGame (uniqueCards, moderator, shuffle) {
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const people = [];
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||||
const cards = [];
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||||
let numberOfRoles = 0;
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for (const card of uniqueCards) {
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for (let i = 0; i < card.quantity; i ++) {
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||||
cards.push(card);
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||||
numberOfRoles ++;
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}
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||||
}
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||||
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||||
shuffle(cards); // this shuffles in-place.
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||||
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||||
let j = 0;
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if (moderator.userType === globals.USER_TYPES.TEMPORARY_MODERATOR) { // temporary moderators should be dealt in.
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||||
moderator.gameRole = cards[j].role;
|
||||
moderator.customRole = cards[j].custom;
|
||||
moderator.gameRoleDescription = cards[j].description;
|
||||
moderator.alignment = cards[j].team;
|
||||
people.push(moderator);
|
||||
j ++;
|
||||
}
|
||||
|
||||
while (j < numberOfRoles) {
|
||||
const person = new Person(
|
||||
createRandomId(),
|
||||
createRandomId(),
|
||||
UsernameGenerator.generate(),
|
||||
globals.USER_TYPES.PLAYER,
|
||||
cards[j].role,
|
||||
cards[j].description,
|
||||
cards[j].team
|
||||
);
|
||||
person.customRole = cards[j].custom;
|
||||
person.hasEnteredName = false;
|
||||
people.push(person);
|
||||
j ++;
|
||||
}
|
||||
|
||||
return people;
|
||||
}
|
||||
|
||||
function createRandomId () {
|
||||
let id = '';
|
||||
for (let i = 0; i < globals.USER_SIGNATURE_LENGTH; i ++) {
|
||||
id += globals.ACCESS_CODE_CHAR_POOL[Math.floor(Math.random() * globals.ACCESS_CODE_CHAR_POOL.length)];
|
||||
}
|
||||
return id;
|
||||
}
|
||||
|
||||
function rejectClientRequestForGameState (acknowledgementFunction) {
|
||||
return acknowledgementFunction(null);
|
||||
}
|
||||
|
||||
function findPlayerBySocketId (people, socketId) {
|
||||
return people.find((person) => person.socketId === socketId && person.userType === globals.USER_TYPES.PLAYER);
|
||||
}
|
||||
|
||||
function isGameFull (game) {
|
||||
return game.moderator.assigned === true && !game.people.find((person) => person.assigned === false);
|
||||
}
|
||||
|
||||
function findPersonByField (game, fieldName, value) {
|
||||
let person;
|
||||
if (value === game.moderator[fieldName]) {
|
||||
person = game.moderator;
|
||||
}
|
||||
if (!person) {
|
||||
person = game.people.find((person) => person[fieldName] === value);
|
||||
}
|
||||
if (!person) {
|
||||
person = game.spectators.find((spectator) => spectator[fieldName] === value);
|
||||
}
|
||||
return person;
|
||||
}
|
||||
|
||||
function isNameTaken (game, name) {
|
||||
const processedName = name.toLowerCase().trim();
|
||||
return (game.people.find((person) => person.name.toLowerCase().trim() === processedName))
|
||||
|| (game.moderator.name.toLowerCase().trim() === processedName)
|
||||
|| (game.spectators.find((spectator) => spectator.name.toLowerCase().trim() === processedName));
|
||||
}
|
||||
|
||||
function getGameSize (cards) {
|
||||
let quantity = 0;
|
||||
for (const card of cards) {
|
||||
quantity += card.quantity;
|
||||
}
|
||||
|
||||
return quantity;
|
||||
}
|
||||
|
||||
function addSpectator (game, name, logger, namespace) {
|
||||
const spectator = new Person(
|
||||
createRandomId(),
|
||||
createRandomId(),
|
||||
name,
|
||||
globals.USER_TYPES.SPECTATOR
|
||||
);
|
||||
logger.trace('new spectator: ' + spectator.name);
|
||||
game.spectators.push(spectator);
|
||||
namespace.in(game.accessCode).emit(
|
||||
globals.EVENTS.UPDATE_SPECTATORS,
|
||||
game.spectators.map((spectator) => { return GameStateCurator.mapPerson(spectator); })
|
||||
);
|
||||
return Promise.resolve(spectator.cookie);
|
||||
}
|
||||
|
||||
module.exports = GameManager;
|
||||
Reference in New Issue
Block a user