@screeps/engine/dist/main.js

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

#!/usr/bin/env node
'use strict';

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

var lastAccessibleRoomsUpdate = 0;
var roomsQueue, usersQueue;

function loop() {

    var resetInterval,
        startLoopTime = process.hrtime ? process.hrtime() : Date.now(),
        stage = 'start';

    driver.config.emit('mainLoopStage', stage);

    if (typeof self == 'undefined') {
        resetInterval = setInterval(() => {
            console.error('Main loop reset! Stage:', stage);
            driver.queue.resetAll();
        }, driver.config.mainLoopResetInterval);
    }

    driver.notifyTickStarted().then(() => {
        stage = 'getUsers';
        driver.config.emit('mainLoopStage', stage);
        return driver.getAllUsers();
    }).then(users => {
        stage = 'addUsersToQueue';
        driver.config.emit('mainLoopStage', stage, users);
        return usersQueue.addMulti(users.map(user => user._id.toString()));
    }).then(() => {
        stage = 'waitForUsers';
        driver.config.emit('mainLoopStage', stage);
        return usersQueue.whenAllDone();
    }).then(() => {
        stage = 'getRooms';
        driver.config.emit('mainLoopStage', stage);
        return driver.getAllRoomsNames();
    }).then(rooms => {
        stage = 'addRoomsToQueue';
        driver.config.emit('mainLoopStage', stage, rooms);
        return roomsQueue.addMulti(rooms);
    }).then(() => {
        stage = 'waitForRooms';
        driver.config.emit('mainLoopStage', stage);
        return roomsQueue.whenAllDone();
    }).then(() => {
        stage = 'commit1';
        driver.config.emit('mainLoopStage', stage);
        return driver.commitDbBulk();
    }).then(() => {
        stage = 'global';
        driver.config.emit('mainLoopStage', stage);
        return require('./processor/global')();
    }).then(() => {
        stage = 'commit2';
        driver.config.emit('mainLoopStage', stage);
        return driver.commitDbBulk();
    }).then(() => {
        stage = 'incrementGameTime';
        driver.config.emit('mainLoopStage', stage);
        return driver.incrementGameTime();
    }).then(gameTime => {
        console.log('Game time set to', gameTime);
        if (+gameTime > lastAccessibleRoomsUpdate + 20) {
            driver.updateAccessibleRoomsList();
            driver.updateRoomStatusData();
            lastAccessibleRoomsUpdate = +gameTime;
        }

        stage = 'notifyRoomsDone';
        driver.config.emit('mainLoopStage', stage);
        return driver.notifyRoomsDone(gameTime);
    }).then(() => {
        stage = 'custom';
        driver.config.emit('mainLoopStage', stage);
        return driver.config.mainLoopCustomStage();
    }).catch(error => {
        if (error == 'Simulation paused') {
            return;
        }
        console.error(`Error while main loop (stage ${stage}):`, _.isObject(error) && error.stack ? error.stack : error);
    }).finally(() => {

        if (resetInterval) {
            clearInterval(resetInterval);
        }

        var usedTime;
        if (process.hrtime) {
            usedTime = process.hrtime(startLoopTime);
            usedTime = usedTime[0] * 1e3 + usedTime[1] / 1e6;
        } else {
            usedTime = Date.now() - startLoopTime;
        }

        driver.config.emit('mainLoopStage', 'finish');

        var delay = driver.config.getNextTickDelay ? driver.config.getNextTickDelay(usedTime) : Math.max(driver.config.mainLoopMinDuration - usedTime, 0);
        console.log(`Tick done in ${Math.round(usedTime)} ms, next tick in ${Math.round(delay)} ms`);
        setTimeout(loop, delay);
    }).catch(error => {
        console.error(`'Error while main loop (final):`, _.isObject(error) && error.stack ? error.stack : error);
    });
}

driver.connect('main').then(() => q.all([driver.queue.create('rooms', 'write'), driver.queue.create('users', 'write')])).catch(error => {
    console.error('Error connecting to driver:', error);
    process.exit(1);
}).then(data => {
    roomsQueue = data[0];
    usersQueue = data[1];
    loop();
});

if (typeof self == 'undefined') {
    setInterval(() => {
        var rejections = q.getUnhandledReasons();
        rejections.forEach(i => console.error('Unhandled rejection:', i));
        q.resetUnhandledRejections();
    }, 1000);
}
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