var async = require('async'); module.exports = require('./core').extend({ run: function(state) { var self = this; var len; async.series([ function(c) { self.sendPacket('i',function(reader) { state.password = !!reader.uint(1); state.raw.numplayers = reader.uint(2); state.maxplayers = reader.uint(2); state.name = self.readString(reader,4); state.raw.gamemode = self.readString(reader,4); self.map = self.readString(reader,4); c(); }); }, function(c) { self.sendPacket('r',function(reader) { var ruleCount = reader.uint(2); state.raw.rules = {}; for(var i = 0; i < ruleCount; i++) { var key = self.readString(reader,1); var value = self.readString(reader,1); state.raw.rules[key] = value; } if('mapname' in state.raw.rules) state.map = state.raw.rules.mapname; c(); }); }, function(c) { self.sendPacket('d',function(reader) { var playerCount = reader.uint(2); for(var i = 0; i < playerCount; i++) { var player = {}; player.id = reader.uint(1); player.name = self.readString(reader,1); player.score = reader.int(4); player.ping = reader.uint(4); state.players.push(player); } c(); },function() { for(var i = 0; i < state.raw.numplayers; i++) { state.players.push({}); } c(); }); }, function(c) { self.finish(state); } ]); }, readString: function(reader,lenBytes) { var length = reader.uint(lenBytes); if(!length) return ''; var string = reader.string({length:length}); return string; }, sendPacket: function(type,onresponse,ontimeout) { var self = this; var outbuffer = new Buffer(11); outbuffer.writeUInt32BE(0x53414D50,0); var ipSplit = self.options.address.split('.'); outbuffer.writeUInt8(parseInt(ipSplit[0]),4); outbuffer.writeUInt8(parseInt(ipSplit[1]),5); outbuffer.writeUInt8(parseInt(ipSplit[2]),6); outbuffer.writeUInt8(parseInt(ipSplit[3]),7); outbuffer.writeUInt16LE(self.options.port,8); outbuffer.writeUInt8(type.charCodeAt(0),10); this.udpSend(outbuffer,function(buffer) { var reader = self.reader(buffer); for(var i = 0; i < outbuffer.length; i++) { if(outbuffer.readUInt8(i) !== reader.uint(1)) return; } onresponse(reader); return true; },function() { if(ontimeout) { ontimeout(); return true; } }); } });