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cleanup unused script

This commit is contained in:
SepComet 2026-04-06 12:13:39 +08:00
parent aebc4011c7
commit 3446dcd6f1
9 changed files with 11 additions and 500 deletions
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11
Assets/Scripts/Network/Defines/SystemMessage.cs
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using System;
namespace Network.Defines
{
public class SystemMessage
{
public string Content { get; set; }
public DateTime Timestamp { get; set; } = DateTime.Now;
public string Level { get; set; } = "info"; // "info", "warning", "error"
}
}

11
Assets/Scripts/Network/Defines/SystemMessage.cs.meta
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64
Assets/Scripts/Network/NetworkTransport/ClientSession.cs
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using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Net;
namespace Network.NetworkTransport
{
public class ClientSession
{
public IPEndPoint EndPoint { get; }
public DateTime LastActivity { get; private set; }
public uint SendSequenceNumber { get; private set; } = 0;
//TODO: 数据结构——ConcurrentDictionary
public ConcurrentDictionary<uint, (Packet packet, DateTime sendTime)> PendingAcks { get; } =
new ConcurrentDictionary<uint, (Packet packet, DateTime sendTime)>();
public uint ExpectedReceiveSequence { get; private set; } = 0;
private HashSet<uint> _receivedSequences { get; } = new HashSet<uint>();
private readonly object _lockObj = new object();
public ClientSession(IPEndPoint endPoint)
{
EndPoint = endPoint;
LastActivity = DateTime.Now;
}
public uint GetNextSendSequence()
{
lock (_lockObj)
{
return SendSequenceNumber++;
}
}
public bool TryProcessReceiveSequence(uint sequenceNumber, out bool shouldDeliver)
{
lock (_lockObj)
{
LastActivity = DateTime.Now;
if (sequenceNumber == ExpectedReceiveSequence)
{
ExpectedReceiveSequence++;
_receivedSequences.Add(sequenceNumber);
shouldDeliver = true;
return true;
}
else if (sequenceNumber < ExpectedReceiveSequence)
{
shouldDeliver = false;
return _receivedSequences.Contains(sequenceNumber);
}
else
{
shouldDeliver = false;
return false;
}
}
}
}
}

11
Assets/Scripts/Network/NetworkTransport/ClientSession.cs.meta
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58
Assets/Scripts/Network/NetworkTransport/Packet.cs
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using System;
using System.Linq;
namespace Network.NetworkTransport
{
public enum PacketType : byte
{
Data = 1,
Ack = 2,
}
public struct Packet
{
public PacketType Type;
public uint SequenceNumber;
public byte[] Data;
public byte[] ToBytes()
{
var result = new byte[1 + 4 + Data.Length];
result[0] = (byte)Type;
BitConverter.GetBytes(SequenceNumber).CopyTo(result, 1);
Data.CopyTo(result, 5);
return result;
}
public static Packet FromBytes(byte[] data)
{
return new Packet
{
Type = (PacketType)data[0],
SequenceNumber = BitConverter.ToUInt32(data, 1),
//TODO: 结构体——ArraySegment
Data = new ArraySegment<byte>(data, 5, data.Length - 5).ToArray()
};
}
public static Packet CreateDataPacket(uint seqNum, byte[] data)
{
return new Packet
{
Type = PacketType.Data,
SequenceNumber = seqNum,
Data = data
};
}
public static Packet CreateAckPacket(uint seqNum)
{
return new Packet
{
Type = PacketType.Ack,
SequenceNumber = seqNum,
Data = Array.Empty<byte>()
};
}
}
}

11
Assets/Scripts/Network/NetworkTransport/Packet.cs.meta
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312
Assets/Scripts/Network/NetworkTransport/ReliableUdpTransport.cs
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using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.Threading.Tasks;
namespace Network.NetworkTransport
{
internal sealed class LegacyUdpTransportAdapter : ITransport, IPeerSessionTransport
{
private readonly UdpClient _client;
private readonly IPEndPoint? _defaultRemoteEndPoint;
private readonly bool _isServer;
private readonly ConcurrentDictionary<string, ClientSession> _sessions = new ConcurrentDictionary<string, ClientSession>();
private readonly ConcurrentDictionary<Packet, int> _resentPacketTimes = new ConcurrentDictionary<Packet, int>();
private readonly Timer _retransmitTimer;
private readonly Timer _cleanupTimer;
//TODO: volatile 关键字
private volatile bool _isRunning;
// 配置参数
private const int RetransmitTimeoutMs = 1000;
private const int SessionTimeoutMs = 30000;
private const int MaxRetransmitAttempts = 5;
public event Action<byte[], IPEndPoint>? OnReceive;
// 构造函数——服务端模式
public LegacyUdpTransportAdapter(int listenPort)
{
_client = new UdpClient(listenPort);
_isServer = true;
_retransmitTimer = new Timer(CheckRetransmit, null, 100, 100);
_cleanupTimer = new Timer(CleanupSessions, null, 5000, 5000);
Console.WriteLine($"[Transport] 服务端模式，监听端口: {listenPort}");
}
// 构造函数——客户端模式
public LegacyUdpTransportAdapter(string serverIP, int serverPort)
{
_client = new UdpClient(0);
_defaultRemoteEndPoint = new IPEndPoint(IPAddress.Parse(serverIP), serverPort);
_isServer = false;
_retransmitTimer = new Timer(CheckRetransmit, null, 100, 100);
_cleanupTimer = new Timer(CleanupSessions, null, 5000, 5000);
Console.WriteLine($"[Transport] 客户端模式，目标: {_defaultRemoteEndPoint}");
}
public async Task StartAsync()
{
_sessions.Clear();
_isRunning = true;
Console.WriteLine("[Transport] 传输层启动");
// 开始接收数据
_ = Task.Run(ReceiveLoop);
await Task.Delay(100); // 给接收循环一点启动时间
}
public void Stop()
{
_isRunning = false;
_retransmitTimer.Dispose();
_cleanupTimer.Dispose();
_client.Close();
_sessions.Clear();
Console.WriteLine("[Transport] 传输层停止");
}
public void Send(byte[] data)
{
if (!_isServer && _defaultRemoteEndPoint != null)
{
SendTo(data, _defaultRemoteEndPoint);
}
else
{
throw new InvalidOperationException("服务端模式必须使用 SendTo 指定目标");
}
}
public void SendTo(byte[] data, IPEndPoint target)
{
if (!_isRunning)
{
return;
}
var session = GetOrCreateSession(target);
uint seqNum = session.GetNextSendSequence();
var packet = Packet.CreateDataPacket(seqNum, data);
session.PendingAcks[seqNum] = (packet, DateTime.Now);
SendPacketTo(packet, target);
Console.WriteLine($"[Transport] 发送数据包到 {target} SeqNum={seqNum}, DataLen={data.Length}");
}
public void SendToAll(byte[] data)
{
foreach (var session in _sessions.Values)
{
SendTo(data, session.EndPoint);
}
}
public bool RemovePeerSession(IPEndPoint remoteEndPoint)
{
if (remoteEndPoint == null)
{
throw new ArgumentNullException(nameof(remoteEndPoint));
}
return _sessions.TryRemove(remoteEndPoint.ToString(), out _);
}
private async void ReceiveLoop()
{
while (_isRunning)
{
try
{
var result = await _client.ReceiveAsync();
var packet = Packet.FromBytes(result.Buffer);
if (packet.Type == PacketType.Data)
{
HandleDataPacket(packet, result.RemoteEndPoint);
}
else if (packet.Type == PacketType.Ack)
{
HandleAckPacket(packet, result.RemoteEndPoint);
}
}
catch (ObjectDisposedException)
{
return; // 正常关闭
}
catch (Exception e)
{
Console.WriteLine($"[Transport] 接收错误：{e.Message}");
}
}
}
private void HandleDataPacket(Packet packet, IPEndPoint senderEndPoint)
{
var session = GetOrCreateSession(senderEndPoint);
Console.WriteLine(
$"[Transport] 收到数据包从{senderEndPoint} SeqNum={packet.SequenceNumber}, DataLen={packet.Data.Length}");
// 发送ACK
var ackPacket = Packet.CreateAckPacket(packet.SequenceNumber);
SendPacketTo(ackPacket, senderEndPoint);
Console.WriteLine($"[Transport] 发送ACK 到 {senderEndPoint} SeqNum={packet.SequenceNumber}");
// 检查是否应该交付
if (session.TryProcessReceiveSequence(packet.SequenceNumber, out bool shouldDeliver))
{
if (shouldDeliver)
{
OnReceive?.Invoke(packet.Data, senderEndPoint);
Console.WriteLine($"[Transport] 交付数据包从 {senderEndPoint} SeqNum={packet.SequenceNumber}");
}
else
{
Console.WriteLine($"[Transport] 重复包从 {senderEndPoint} SeqNum={packet.SequenceNumber}，忽略");
}
}
else
{
// 乱序到达，暂存（简化处理：直接丢弃，依赖重传）
Console.WriteLine($"[Transport] 乱序包从 {senderEndPoint} SeqNum={packet.SequenceNumber}，丢弃");
}
}
private void HandleAckPacket(Packet packet, IPEndPoint senderEndPoint)
{
var session = GetOrCreateSession(senderEndPoint);
Console.WriteLine($"[Transport] 收到ACK从 {senderEndPoint} SeqNum={packet.SequenceNumber}");
if (session.PendingAcks.TryRemove(packet.SequenceNumber, out _))
{
Console.WriteLine($"[Transport] 确认包到 {senderEndPoint} SeqNum={packet.SequenceNumber}");
}
}
private ClientSession GetOrCreateSession(IPEndPoint endPoint)
{
string key = endPoint.ToString();
return _sessions.GetOrAdd(key, _ =>
{
var session = new ClientSession(endPoint);
Console.WriteLine($"创建新会话：{endPoint}");
return session;
});
}
private void CheckRetransmit(object? state)
{
if (!_isRunning)
{
return;
}
var now = DateTime.Now;
var toRetransmit = new List<(IPEndPoint target, uint seqNum, Packet packet)>();
foreach (var sessionKvp in _sessions)
{
var session = sessionKvp.Value;
foreach (var ackKvp in session.PendingAcks)
{
var timeSinceLastSend = now - ackKvp.Value.sendTime;
if (timeSinceLastSend.TotalMilliseconds > RetransmitTimeoutMs)
{
toRetransmit.Add((session.EndPoint, ackKvp.Key, ackKvp.Value.packet));
_resentPacketTimes.TryAdd(ackKvp.Value.packet, 0);
}
}
}
foreach (var (target, seqNum, packet) in toRetransmit)
{
var session = GetOrCreateSession(target);
if (session.PendingAcks.ContainsKey(seqNum))
{
// 更新发送时间
session.PendingAcks[seqNum] = (packet, now);
SendPacketTo(packet, target);
Console.WriteLine($"[Transport] 重传包到 {target} SeqNum={seqNum}");
_resentPacketTimes[packet]++;
if (_resentPacketTimes[packet] >= MaxRetransmitAttempts)
{
// 达到最大重传次数，放弃该会话
Console.WriteLine($"[Transport] 达到最大重传次数，放弃会话 {target}");
_sessions.TryRemove(target.ToString(), out _);
}
}
}
}
private void CleanupSessions(object? state)
{
if (!_isRunning)
{
return;
}
var now = DateTime.Now;
var toRemove = new List<string>();
foreach (var sessionKvp in _sessions)
{
var session = sessionKvp.Value;
var timeSinceLastActivity = now - session.LastActivity;
if (timeSinceLastActivity.TotalMilliseconds > SessionTimeoutMs)
{
toRemove.Add(sessionKvp.Key);
}
}
foreach (string key in toRemove)
{
//TODO: 清理会话的同时清理PlayerManager中的玩家数据
if (_sessions.TryRemove(key, out var session))
{
Console.WriteLine($"[Transport] 清理超时会话：{session.EndPoint}");
}
}
if (_isServer)
{
PrintSessionInfo();
}
}
private async void SendPacketTo(Packet packet, IPEndPoint? endPoint)
{
try
{
var data = packet.ToBytes();
await _client.SendAsync(data, data.Length, endPoint);
}
catch (Exception e)
{
Console.WriteLine($"[Transport] 发送错误：{e.Message}");
}
}
private void PrintSessionInfo()
{
Console.WriteLine($"当前活跃会话数：{_sessions.Count}");
foreach (var sessionKvp in _sessions)
{
var session = sessionKvp.Value;
Console.WriteLine(
$" 会话：{session.EndPoint}，发送SeqNum：{session.SendSequenceNumber}，期望接收：{session.ExpectedReceiveSequence}，待确认: {session.PendingAcks.Count}");
}
}
}
}

11
Assets/Scripts/Network/NetworkTransport/ReliableUdpTransport.cs.meta
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