node-gamedig/protocols/starmade.js

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2015-01-18 04:10:44 +01:00
module.exports = require('./core').extend({
init: function() {
this._super();
this.encoding = 'latin1';
this.byteorder = 'be';
},
run: function(state) {
var self = this;
var b = new Buffer([0x00,0x00,0x00,0x09,0x2a,0xff,0xff,0x01,0x6f,0x00,0x00,0x00,0x00]);
this.tcpSend(b,function(buffer) {
var reader = self.reader(buffer);
if(buffer.length < 4) return false;
var packetLength = reader.uint(4);
if(buffer.length < packetLength+12) return false;
var data = [];
state.raw.data = data;
reader.skip(2);
while(!reader.done()) {
var 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
var length = reader.uint(2);
data.push(reader.string(length));
} else if(mark == 6) {
// byte
data.push(reader.uint(1));
}
}
if(data.length < 9) {
self.fatal("Not enough units in data packet");
return true;
}
if(typeof data[3] == 'number') state.raw.version = data[3];
if(typeof data[4] == 'string') state.name = data[4];
if(typeof data[5] == 'string') state.raw.description = data[5];
if(typeof data[7] == 'number') state.raw.numplayers = data[7];
if(typeof data[8] == 'number') state.maxplayers = data[8];
if('numplayers' in state.raw) {
for(var i = 0; i < state.raw.numplayers; i++) {
state.players.push({});
}
}
self.finish(state);
return true;
});
}
});