@screeps/engine/dist/rooms-users-tracker.js

This is a module for Screeps standalone server. See [main repository](https://github.com/screeps/screeps) for more info.

'use strict';

var q = require('q'),
    _ = require('lodash'),
    utils = require('./utils'),
    driver = utils.getDriver(),
    config = require('./config');

var usersInRooms,
    roomNames,
    usersDone = {},
    roomsDone = {},
    activeUsers,
    started = false,
    waitDeferred,
    roomsQueue,
    timeout;

driver.listenUserDoneTick(function (userId) {
    if (!started) {
        return;
    }
    //console.log('-->', userId);
    usersDone[userId] = true;
    throttledProcess();
});

function doProcess() {

    var add = [],
        notDone = 0;

    for (var i = 0; i < roomNames.length; i++) {
        if (roomsDone[roomNames[i]]) {
            continue;
        }
        var flag = 0,
            usersInThisRoom = usersInRooms[roomNames[i]];
        for (var j = 0; j < usersInThisRoom.length; j++) {
            if (!usersInThisRoom[j]) {
                continue;
            }
            if (!usersDone[usersInThisRoom[j]] && !usersDone[usersInThisRoom[j] + ':' + roomNames[i]] && (activeUsers[usersInThisRoom[j]] || usersInThisRoom[j] == '2' || usersInThisRoom[j] == '3')) {
                flag++;
                break;
            }
        }
        if (!flag) {
            //console.log(`! room ${roomNames[i]} done!`);
            roomsDone[roomNames[i]] = true;
            add.push(roomNames[i]);
        } else {
            //console.log(`...... room ${roomNames[i]} waiting: ${u.join(',')}`)
            notDone++;
        }
    }

    if (add.length) {
        roomsQueue.addMulti(add);
    }

    if (!notDone) {
        clearTimeout(timeout);
        waitDeferred.resolve();
    }
}

var throttledProcess = _.throttle(doProcess, 50);

function start(rooms, users) {

    return driver.getUsersInRoomPresence(_.map(rooms, '_id')).then(function (data) {
        usersInRooms = data;
        usersDone = {};
        activeUsers = {};
        for (var i = 0; i < users.length; i++) {
            activeUsers[users[i]._id] = true;
        }
        roomsDone = {};
        roomNames = Object.keys(usersInRooms);
        started = true;
        waitDeferred = q.defer();

        timeout = setTimeout(function () {
            waitDeferred.reject('rooms/users tracker timeout');
            for (var i = 0; i < roomNames.length; i++) {
                if (!roomsDone[roomNames[i]]) {
                    var usersInThisRoom = usersInRooms[roomNames[i]];
                    for (var j = 0; j < usersInThisRoom.length; j++) {
                        if (!usersInThisRoom[j]) {
                            continue;
                        }
                        if (!usersDone[usersInThisRoom[j]] && !usersDone[usersInThisRoom[j] + ':' + roomNames[i]] && (activeUsers[usersInThisRoom[j]] || usersInThisRoom[j] == '2' || usersInThisRoom[j] == '3')) {
                            console.log('!!! room ' + roomNames[i] + ' waiting for ' + usersInThisRoom[j]);
                            break;
                        }
                    }
                    break;
                }
            }
        }, driver.config.mainLoopResetInterval);

        doProcess();
    });
}

function wait() {
    return waitDeferred.promise;
}

function stop() {
    started = false;
}

function setRoomsQueue(queue) {
    roomsQueue = queue;
}

exports.start = start;
exports.wait = wait;
exports.stop = stop;
exports.setRoomsQueue = setRoomsQueue;
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