148 lines
3.9 KiB
JavaScript
148 lines
3.9 KiB
JavaScript
const async = require('async'),
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moment = require('moment');
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class OpenTtd extends require('./core') {
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run(state) {
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async.series([
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(c) => {
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this.query(0,1,1,4,(reader, version) => {
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if(version >= 4) {
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const numGrf = reader.uint(1);
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state.raw.grfs = [];
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for(let i = 0; i < numGrf; i++) {
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const grf = {};
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grf.id = reader.part(4).toString('hex');
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grf.md5 = reader.part(16).toString('hex');
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state.raw.grfs.push(grf);
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}
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}
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if(version >= 3) {
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state.raw.date_current = this.readDate(reader);
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state.raw.date_start = this.readDate(reader);
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}
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if(version >= 2) {
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state.raw.maxcompanies = reader.uint(1);
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state.raw.numcompanies = reader.uint(1);
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state.raw.maxspectators = reader.uint(1);
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}
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state.name = reader.string();
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state.raw.version = reader.string();
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state.raw.language = this.decode(
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reader.uint(1),
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['any','en','de','fr']
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);
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state.password = !!reader.uint(1);
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state.maxplayers = reader.uint(1);
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state.raw.numplayers = reader.uint(1);
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for(let i = 0; i < state.raw.numplayers; i++) {
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state.players.push({});
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}
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state.raw.numspectators = reader.uint(1);
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state.map = reader.string();
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state.raw.map_width = reader.uint(2);
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state.raw.map_height = reader.uint(2);
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state.raw.landscape = this.decode(
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reader.uint(1),
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['temperate','arctic','desert','toyland']
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);
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state.raw.dedicated = !!reader.uint(1);
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c();
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});
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},
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(c) => {
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const vehicle_types = ['train','truck','bus','aircraft','ship'];
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const station_types = ['station','truckbay','busstation','airport','dock'];
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this.query(2,3,-1,-1, (reader,version) => {
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// we don't know how to deal with companies outside version 6
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if(version !== 6) return c();
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state.raw.companies = [];
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const numCompanies = reader.uint(1);
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for(let iCompany = 0; iCompany < numCompanies; iCompany++) {
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const company = {};
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company.id = reader.uint(1);
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company.name = reader.string();
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company.year_start = reader.uint(4);
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company.value = reader.uint(8);
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company.money = reader.uint(8);
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company.income = reader.uint(8);
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company.performance = reader.uint(2);
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company.password = !!reader.uint(1);
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company.vehicles = {};
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for(const type of vehicle_types) {
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company.vehicles[type] = reader.uint(2);
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}
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company.stations = {};
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for(const type of station_types) {
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company.stations[type] = reader.uint(2);
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}
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company.clients = reader.string();
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state.raw.companies.push(company);
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}
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c();
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});
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},
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(c) => {
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this.finish(state);
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}
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]);
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}
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query(type,expected,minver,maxver,done) {
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const b = Buffer.from([0x03,0x00,type]);
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this.udpSend(b,(buffer) => {
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const reader = this.reader(buffer);
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const packetLen = reader.uint(2);
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if(packetLen !== buffer.length) {
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this.fatal('Invalid reported packet length: '+packetLen+' '+buffer.length);
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return true;
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}
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const packetType = reader.uint(1);
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if(packetType !== expected) {
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this.fatal('Unexpected response packet type: '+packetType);
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return true;
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}
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const protocolVersion = reader.uint(1);
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if((minver !== -1 && protocolVersion < minver) || (maxver !== -1 && protocolVersion > maxver)) {
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this.fatal('Unknown protocol version: '+protocolVersion+' Expected: '+minver+'-'+maxver);
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return true;
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}
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done(reader,protocolVersion);
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return true;
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});
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}
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readDate(reader) {
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const daysSinceZero = reader.uint(4);
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const temp = new Date(0,0,1);
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temp.setFullYear(0);
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temp.setDate(daysSinceZero+1);
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return moment(temp).format('YYYY-MM-DD');
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}
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decode(num,arr) {
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if(num < 0 || num >= arr.length) {
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return num;
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}
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return arr[num];
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}
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}
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module.exports = OpenTtd;
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