405 lines
11 KiB
C#
405 lines
11 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Runtime.Serialization.Formatters.Binary;
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using System.Text;
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using Microsoft.Xna.Framework;
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using SpacePew.Extensions;
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using Lidgren.Network;
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using System.Net;
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using Microsoft.Xna.Framework.Graphics;
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using System.Net.NetworkInformation;
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using SpacePew.Models;
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using SpacePew.Common;
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namespace SpacePew.Networking
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{
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public class UdpServer : UdpBase
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{
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private NetPeerConfiguration _configuration;
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private NetServer _server;
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private Level _level;
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private readonly List<ScoreBoardItem> _scoreBoard;
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private readonly List<string> _players;
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private readonly Vector2 _defaultPosition = new Vector2(300, 280);
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private IPEndPoint _masterServerEndpoint;
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public UdpServer()
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: base()
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{
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_masterServerEndpoint = NetUtility.Resolve("spacepew.wodanaz.se", Constants.MasterServerPort); // TODO: Fixa upp masterserver någonstans
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_scoreBoard = new List<ScoreBoardItem>();
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_players = new List<string>();
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}
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public void CreateSession()
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{
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if (_server == null)
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{
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_configuration = new NetPeerConfiguration("SpacePew")
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{
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MaximumConnections = 16,
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Port = SpacePew.Common.Constants.GameServerPort
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};
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_configuration.EnableMessageType(NetIncomingMessageType.DiscoveryRequest);
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_configuration.EnableMessageType(NetIncomingMessageType.DiscoveryResponse);
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_configuration.EnableMessageType(NetIncomingMessageType.NatIntroductionSuccess);
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_server = new NetServer(_configuration);
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_server.Start();
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}
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}
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public void SetLevel(Level level)
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{
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_level = level;
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}
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public void Shutdown()
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{
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if (_server != null && _server.Status == NetPeerStatus.Running)
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{
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_server.Shutdown("Quitting");
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}
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}
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public void Listen()
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{
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System.Diagnostics.Trace.WriteLine("Server.Listen()");
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while (_server.Status == NetPeerStatus.Running)
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{
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NetIncomingMessage message;
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while ((message = _server.ReadMessage()) != null)
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{
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ReadBuffer(message, message.SenderConnection);
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}
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if (NetTime.Now > lastRegistered + 60)
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{
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RegisterWithMasterServer();
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}
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StreamLevelToClients();
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}
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}
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private void StreamLevelToClients()
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{
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foreach (var conn in _server.Connections)
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{
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var client = conn.Tag as StreamingClient;
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if (client != null)
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client.Heartbeat();
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}
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}
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float lastRegistered = -60.0f;
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private void RegisterWithMasterServer()
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{
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IPAddress mask;
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IPAddress localAddress = NetUtility.GetMyAddress(out mask);
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var message = _server.CreateMessage();
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message.Write((byte)UdpNetworkPacketType.RegisterHost);
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message.Write(_server.UniqueIdentifier);
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message.Write(new IPEndPoint(localAddress, Constants.GameServerPort));
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_server.SendUnconnectedMessage(message, _masterServerEndpoint);
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lastRegistered = (float)NetTime.Now;
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}
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private void ReadBuffer(NetIncomingMessage message, NetConnection sender)
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{
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switch (message.MessageType)
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{
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case NetIncomingMessageType.Data:
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{
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var packetType = (UdpNetworkPacketType)message.ReadInt32();
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switch (packetType)
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{
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case UdpNetworkPacketType.PlayerUpdate:
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WritePlayerUpdate(message, sender);
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break;
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case UdpNetworkPacketType.EntitiesCreated:
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WriteEntities(message, sender);
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break;
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case UdpNetworkPacketType.MessageSent:
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WriteMessage(message, sender);
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break;
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case UdpNetworkPacketType.EntityCreated:
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WriteEntity(message, sender);
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break;
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case UdpNetworkPacketType.PlayerDying:
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WritePlayerDied(message, sender);
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break;
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case UdpNetworkPacketType.RequestingScoreboard:
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WriteScoreBoard(sender);
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break;
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case UdpNetworkPacketType.PlayerJoining:
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{
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string name = message.ReadString();
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_players.Add(name);
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sender.Tag = name;
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_scoreBoard.Add(new ScoreBoardItem() { Name = name, Joined = DateTime.Now });
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WritePlayerJoinedPacket(sender, name);
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break;
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}
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case UdpNetworkPacketType.PlayerDisconnecting:
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{
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string name = message.ReadString();
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WritePlayerDisconnectedPacket(sender, name);
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break;
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}
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case UdpNetworkPacketType.LevelRequest:
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{
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WriteLevelResponse(message);
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break;
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}
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}
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}
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break;
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case NetIncomingMessageType.ConnectionApproval:
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AuthorizeConnection(sender);
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break;
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case NetIncomingMessageType.DiscoveryRequest:
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WriteDiscoveryResponse(sender);
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break;
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case NetIncomingMessageType.StatusChanged:
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{
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var status = (NetConnectionStatus)message.ReadByte();
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var msg = message.ReadString();
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break;
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}
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}
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_server.Recycle(message);
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}
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private void WriteLevelResponse(NetIncomingMessage message)
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{
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message.SenderConnection.Tag = new StreamingClient(message.SenderConnection, _level.FilePath);
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}
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private void WriteDiscoveryResponse(NetConnection sender)
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{
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if (sender == null)
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return;
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var message = _server.CreateMessage();
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// TODO: Skicka med lite stats
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_server.SendDiscoveryResponse(message, sender.RemoteEndPoint);
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}
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private void WritePlayerDisconnectedPacket(NetConnection sender, string name)
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{
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var message = _server.CreateMessage();
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message.Write((int)UdpNetworkPacketType.PlayerDisconnected);
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message.Write(name);
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_server.SendToAll(message, sender, NetDeliveryMethod.ReliableUnordered, 0);
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_players.Remove(name);
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}
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private void WriteScoreBoard(NetConnection sender)
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{
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var message = _server.CreateMessage();
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message.Write((int)UdpNetworkPacketType.SendingScoreBoard);
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int count = _scoreBoard.Count;
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message.Write(count);
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var ping = new Ping();
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foreach (var item in _scoreBoard)
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{
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message.Write(item.Name);
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message.Write(item.Kills);
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message.Write(item.Deaths);
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message.Write(item.Joined.ToString(CultureInfo.InvariantCulture));
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//TODO: Fixa riktig ping
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//NetConnection connection = _server.Connections.Find(s => s.Tag.ToString() == item.Name);
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//long pingTime = ping.Send(connection.RemoteEndpoint.Address).RoundtripTime;
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const long pinglong = 14;
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message.Write(pinglong);
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}
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_server.SendMessage(message, sender, NetDeliveryMethod.UnreliableSequenced);
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}
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private void WriteMessage(NetIncomingMessage incomingMessage, NetConnection sender)
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{
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Vector3 colorVector = incomingMessage.ReadVector3();
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string dateString = incomingMessage.ReadString();
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string message = incomingMessage.ReadString();
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bool isChatMessage = incomingMessage.ReadBoolean();
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var outgoingMessage = _server.CreateMessage();
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outgoingMessage.Write((int)UdpNetworkPacketType.MessageReceived);
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outgoingMessage.Write(colorVector);
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outgoingMessage.Write(dateString);
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outgoingMessage.Write(message);
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outgoingMessage.Write(isChatMessage);
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_server.SendToAll(outgoingMessage, sender, NetDeliveryMethod.UnreliableSequenced, 1);
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}
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private void WritePlayerDied(NetIncomingMessage incomingMessage, NetConnection sender)
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{
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string playerName = incomingMessage.ReadString();
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string killedBy = incomingMessage.ReadString();
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if (playerName != killedBy)
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{
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AddKillScore(killedBy);
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}
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AddDeathScore(playerName);
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var message = _server.CreateMessage();
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message.Write((int)UdpNetworkPacketType.PlayerDied);
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message.Write(playerName);
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_server.SendToAll(message, sender, NetDeliveryMethod.ReliableUnordered, 0);
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}
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private void AddKillScore(string name)
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{
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ScoreBoardItem item = _scoreBoard.Find(i => i.Name == name);
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item.Kills++;
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_scoreBoard[_scoreBoard.IndexOf(item)] = item;
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}
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private void AddDeathScore(string name)
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{
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ScoreBoardItem item = _scoreBoard.Find(i => i.Name == name);
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item.Deaths++;
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_scoreBoard[_scoreBoard.IndexOf(item)] = item;
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}
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private void WriteEntities(NetIncomingMessage incomingMessage, NetConnection sender)
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{
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int count = incomingMessage.ReadInt32();
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var message = _server.CreateMessage();
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message.Write((int)UdpNetworkPacketType.EntitiesCreated);
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message.Write(count);
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for (int i = 0; i < count; i++)
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{
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message.Write(incomingMessage.ReadString());
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message.Write(incomingMessage.ReadString());
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message.Write(incomingMessage.ReadVector2());
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message.Write(incomingMessage.ReadVector2());
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message.Write(incomingMessage.ReadFloat());
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}
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_server.SendToAll(message, sender, NetDeliveryMethod.UnreliableSequenced, 1);
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}
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private void AuthorizeConnection(NetConnection sender)
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{
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string name = Encoding.ASCII.GetString(sender.RemoteHailMessage.Data);
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if (!string.IsNullOrEmpty(name) && !_players.Contains(name))
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{
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sender.Approve();
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}
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else
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{
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sender.Deny("A player with that name is already playing.");
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}
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}
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private void WritePlayerJoinedPacket(NetConnection sender, string name)
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{
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System.Diagnostics.Trace.WriteLine("In WritePlayerJoined()...");
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var message = _server.CreateMessage();
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message.Write((int)UdpNetworkPacketType.PlayerJoined);
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message.Write(name);
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message.Write(_server.Connections.IndexOf(sender));
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message.Write(_defaultPosition); // TODO: positions should be stored on the level somehow
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message.Write(Vector2.Zero);
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message.Write(0f);
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_level.BuildCollisionDataFromLevel();
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byte[] collisionData = ObjectToByteArray(_level.CollisionData);
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message.Write(collisionData.Length);
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message.Write(collisionData);
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_server.SendMessage(message, sender, NetDeliveryMethod.ReliableUnordered);
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System.Diagnostics.Trace.WriteLine("Sent joined...");
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}
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private void WriteEntity(NetIncomingMessage message, NetConnection sender)
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{
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string entityType = message.ReadString();
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string owner = message.ReadString();
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Vector2 pos = message.ReadVector2();
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Vector2 velocity = message.ReadVector2();
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float angle = message.ReadFloat();
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WriteEntityPacket(sender, entityType, owner, ref pos, ref velocity, angle);
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}
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private void WriteEntityPacket(NetConnection connectionToExclude, string entityType, string owner, ref Vector2 pos, ref Vector2 velocity, float angle)
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{
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var message = _server.CreateMessage();
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message.Write((int)UdpNetworkPacketType.EntityCreated);
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message.Write(entityType);
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message.Write(owner);
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message.Write(pos);
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message.Write(velocity);
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message.Write(angle);
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_server.SendToAll(message, connectionToExclude, NetDeliveryMethod.UnreliableSequenced, 1);
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}
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private void WritePlayerUpdate(NetIncomingMessage message, NetConnection sender)
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{
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string owner = message.ReadString();
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int colorIndex = message.ReadInt32();
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Vector2 pos = message.ReadVector2();
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Vector2 velocity = message.ReadVector2();
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float angle = message.ReadFloat();
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WritePlayerUpdatePacket(sender, owner, colorIndex, ref pos, ref velocity, angle);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private void WritePlayerUpdatePacket(NetConnection connectionToExclude, string owner, int colorIndex, ref Vector2 pos, ref Vector2 velocity, float angle)
|
|||
|
|
{
|
|||
|
|
var message = _server.CreateMessage();
|
|||
|
|
|
|||
|
|
message.Write((int)UdpNetworkPacketType.PlayerUpdate);
|
|||
|
|
message.Write(owner);
|
|||
|
|
message.Write(colorIndex);
|
|||
|
|
message.Write(pos);
|
|||
|
|
message.Write(velocity);
|
|||
|
|
message.Write(angle);
|
|||
|
|
|
|||
|
|
_server.SendToAll(message, connectionToExclude, NetDeliveryMethod.UnreliableSequenced, 1);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|