GitHub - RevenantX/LiteNetLib: Lite reliable UDP library for Mono and .NET (original) (raw)

LiteNetLib 2

Lite reliable UDP library for .NET Standard 2.1 (Mono, .NET)

HighLevel API Part: LiteEntitySystem

Discord chat:

OLD BRANCH (and examples) for 1.x

Little Game Example on Unity

Documentation

Build

( Warning! Master branch can be unstable! )

Features

• Lightweight
  • Small CPU and RAM usage
  • Small packet size overhead ( 1 byte for unreliable, 4 bytes for reliable packets )
• Simple connection handling
• Peer to peer connections
• Helper classes for sending and reading messages
• Multiple data channels
• Different send mechanics
  • Reliable with order
  • Reliable without order
  • Reliable sequenced (reliable only last packet)
  • Ordered but unreliable with duplication prevention
  • Simple UDP packets without order and reliability
• Fast packet serializer (Usage manual)
• Automatic small packets merging
• Automatic fragmentation of reliable packets
• Automatic MTU detection
• Optional CRC32C checksums
• UDP NAT hole punching
• NTP time requests
• Packet loss and latency simulation
• IPv6 support (using separate socket for performance)
• Connection statistics
• Multicasting (for discovering hosts in local network)
• Unity support
• Support for .NET8 optimized socket calls (much less gc)
• Supported platforms:
  • Windows/Mac/Linux (.NET Framework, Mono, .NET Core, .NET Standard)
  • Lumin OS (Magic Leap)
  • MonoGame
  • Godot
  • Unity 2021.2 (Desktop platforms, Android, iOS, Switch)

Support developer

• 
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Unity notes!!!

• Minimal supported Unity is 2021.2. For older Unity versions use 0.9.x library versions
• Always use library sources or OpenUPM package instead of precompiled DLL files ( because there are platform specific #ifdefs and workarounds for unity bugs )

Usage samples

Client

var listener = new EventBasedNetListener(); var client = new NetManager(listener); client.Start(); client.Connect("localhost" /* host IP or name /, 9050 / port /, "SomeConnectionKey" / text key or NetDataWriter /); listener.NetworkReceiveEvent += (fromPeer, dataReader, deliveryMethod, channel) => { Console.WriteLine("We got: {0}", dataReader.GetString(100 / max length of string */)); dataReader.Recycle(); };

while (!Console.KeyAvailable) { client.PollEvents(); Thread.Sleep(15); }

client.Stop();

Server

var listener = new EventBasedNetListener(); var server = new NetManager(listener); server.Start(9050 /* port */);

listener.ConnectionRequestEvent += request => { if(server.ConnectedPeersCount < 10 /* max connections */) request.AcceptIfKey("SomeConnectionKey"); else request.Reject(); };

listener.PeerConnectedEvent += peer => { Console.WriteLine("We got connection: {0}", peer); // Show peer IP var writer = new NetDataWriter(); // Create writer class writer.Put("Hello client!"); // Put some string peer.Send(writer, DeliveryMethod.ReliableOrdered); // Send with reliability };

while (!Console.KeyAvailable) { server.PollEvents(); Thread.Sleep(15); } server.Stop();