node-gamedig/protocols/starmade.js

68 lines
2.1 KiB
JavaScript
Raw Normal View History

import Core from './core.js'
export default class starmade extends Core {
constructor () {
super()
this.encoding = 'latin1'
this.byteorder = 'be'
}
async run (state) {
const b = Buffer.from([0x00, 0x00, 0x00, 0x09, 0x2a, 0xff, 0xff, 0x01, 0x6f, 0x00, 0x00, 0x00, 0x00])
const payload = await this.withTcp(async socket => {
return await this.tcpSend(socket, b, buffer => {
if (buffer.length < 12) return
const reader = this.reader(buffer)
const packetLength = reader.uint(4)
this.logger.debug('Received packet length: ' + packetLength)
const timestamp = reader.uint(8).toString()
this.logger.debug('Received timestamp: ' + timestamp)
if (reader.remaining() < packetLength || reader.remaining() < 5) return
const checkId = reader.uint(1)
const packetId = reader.uint(2)
const commandId = reader.uint(1)
const type = reader.uint(1)
this.logger.debug('checkId=' + checkId + ' packetId=' + packetId + ' commandId=' + commandId + ' type=' + type)
if (checkId !== 0x2a) return
return reader.rest()
})
})
const reader = this.reader(payload)
const data = []
state.raw.data = data
while (!reader.done()) {
const mark = reader.uint(1)
if (mark === 1) {
// signed int
data.push(reader.int(4))
} else if (mark === 3) {
// float
data.push(reader.float())
} else if (mark === 4) {
// string
data.push(reader.pascalString(2))
} else if (mark === 6) {
// byte
data.push(reader.uint(1))
}
}
this.logger.debug('Received raw data array', data)
if (typeof data[0] === 'number') state.raw.infoVersion = data[0]
if (typeof data[1] === 'string') state.version = data[1]
if (typeof data[2] === 'string') state.name = data[2]
if (typeof data[3] === 'string') state.raw.description = data[3]
if (typeof data[4] === 'number') state.raw.startTime = data[4]
if (typeof data[5] === 'number') state.numplayers = data[5]
if (typeof data[6] === 'number') state.maxplayers = data[6]
}
}