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128 lines
3.8 KiB
JavaScript
128 lines
3.8 KiB
JavaScript
import Core from './core.js'
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export default class openttd extends Core {
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async run (state) {
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{
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const [reader, version] = await this.query(0, 1, 1, 4)
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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.numplayers = reader.uint(1)
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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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}
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{
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const [reader, version] = await this.query(2, 3, -1, -1)
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// we don't know how to deal with companies outside version 6
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if (version === 6) {
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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).toString()
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company.money = reader.uint(8).toString()
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company.income = reader.uint(8).toString()
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company.performance = reader.uint(2)
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company.password = !!reader.uint(1)
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const vehicleTypes = ['train', 'truck', 'bus', 'aircraft', 'ship']
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const stationTypes = ['station', 'truckbay', 'busstation', 'airport', 'dock']
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company.vehicles = {}
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for (const type of vehicleTypes) {
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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 stationTypes) {
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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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}
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}
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}
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async query (type, expected, minver, maxver) {
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const b = Buffer.from([0x03, 0x00, type])
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return await 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.logger.debug('Invalid reported packet length: ' + packetLen + ' ' + buffer.length)
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return
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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.logger.debug('Unexpected response packet type: ' + packetType)
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return
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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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throw new Error('Unknown protocol version: ' + protocolVersion + ' Expected: ' + minver + '-' + maxver)
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}
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return [reader, protocolVersion]
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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 temp.toISOString().split('T')[0]
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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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