66 lines
2.0 KiB
JavaScript
66 lines
2.0 KiB
JavaScript
const Core = require('./core');
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class Starmade extends Core {
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constructor() {
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super();
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this.encoding = 'latin1';
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this.byteorder = 'be';
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}
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async run(state) {
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const b = Buffer.from([0x00,0x00,0x00,0x09,0x2a,0xff,0xff,0x01,0x6f,0x00,0x00,0x00,0x00]);
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const payload = await this.withTcp(async socket => {
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return await this.tcpSend(socket, b, buffer => {
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if (buffer.length < 4) return;
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const reader = this.reader(buffer);
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const packetLength = reader.uint(4);
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if (buffer.length < packetLength + 12) return;
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return reader.rest();
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});
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});
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const reader = this.reader(payload);
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const data = [];
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state.raw.data = data;
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reader.skip(2);
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while(!reader.done()) {
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const mark = reader.uint(1);
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if(mark === 1) {
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// signed int
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data.push(reader.int(4));
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} else if(mark === 3) {
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// float
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data.push(reader.float());
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} else if(mark === 4) {
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// string
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const length = reader.uint(2);
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data.push(reader.string(length));
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} else if(mark === 6) {
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// byte
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data.push(reader.uint(1));
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}
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}
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if(data.length < 9) {
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throw new Error("Not enough units in data packet");
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}
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if(typeof data[3] === 'number') state.raw.version = data[3].toFixed(7).replace(/0+$/, '');
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if(typeof data[4] === 'string') state.name = data[4];
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if(typeof data[5] === 'string') state.raw.description = data[5];
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if(typeof data[7] === 'number') state.raw.numplayers = data[7];
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if(typeof data[8] === 'number') state.maxplayers = data[8];
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if('numplayers' in state.raw) {
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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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}
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}
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}
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module.exports = Starmade;
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