feat: engine data type packers

Shared/Network/LiteNetLib/LiteNetLibClient.cs

@@ -0,0 +1,28 @@
+using LiteNetLib.Utils;
+
+namespace Syntriax.Engine.Network;
+
+public class LiteNetLibClient : LiteNetLibCommunicatorBase, INetworkCommunicatorClient
+{
+    private readonly NetDataWriter netDataWriter = new();
+
+    public INetworkCommunicatorClient Connect(string address, int port, string? password = null)
+    {
+        if (!IsInUniverse)
+            throw new($"{nameof(LiteNetLibClient)} must be in an universe to connect");
+
+        Manager.Start();
+        Manager.Connect(address, port, password ?? string.Empty);
+
+        return this;
+    }
+
+    public INetworkCommunicatorClient SendToServer<T>(T packet) where T : class, new()
+    {
+        netDataWriter.Reset();
+        netPacketProcessor.Write(netDataWriter, packet);
+        Manager.FirstPeer.Send(netDataWriter, LiteNetLib.DeliveryMethod.ReliableOrdered);
+
+        return this;
+    }
+}

Shared/Network/LiteNetLib/LiteNetLibCommunicatorBase.cs

@@ -0,0 +1,133 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+
+using LiteNetLib;
+using LiteNetLib.Utils;
+
+using Syntriax.Engine.Core;
+
+namespace Syntriax.Engine.Network;
+
+public abstract class LiteNetLibCommunicatorBase : UniverseObject, INetworkCommunicator
+{
+    protected readonly NetPacketProcessor netPacketProcessor = new();
+
+    private readonly Dictionary<Type, List<Delegate>> listeners = [];
+
+    public EventBasedNetListener Listener { get; private set; } = null!;
+    public NetManager Manager { get; private set; } = null!;
+
+    public INetworkCommunicator Stop()
+    {
+        Manager.Stop();
+        return this;
+    }
+
+    protected override void OnEnteringUniverse(IUniverse universe)
+    {
+        universe.OnPreUpdate += PollEvents;
+    }
+
+    protected override void OnExitingUniverse(IUniverse universe)
+    {
+        universe.OnPreUpdate -= PollEvents;
+
+        Stop();
+    }
+
+    private void PollEvents(IUniverse sender, UniverseTime engineTime) => Manager.PollEvents();
+    protected virtual void OnPacketArrived<T>(T packet, NetPeer peer) where T : INetworkPacket
+    {
+        if (!listeners.TryGetValue(typeof(T), out List<Delegate>? delegates))
+            return;
+
+        foreach (Delegate @delegate in delegates)
+            @delegate.InvokeSafe(packet);
+    }
+
+    private void NetworkReceiveEvent(NetPeer peer, NetPacketReader reader, byte channel, DeliveryMethod deliveryMethod)
+    {
+        try { netPacketProcessor.ReadAllPackets(reader, peer); }
+        catch { }
+    }
+
+    private void SetupPackets()
+    {
+        // Find network packets implementing INetworkPacket
+        IEnumerable<Type> packetTypes = AppDomain.CurrentDomain.GetAssemblies().SelectMany(a => a.GetTypes())
+            .Where(t => typeof(INetworkPacket).IsAssignableFrom(t) && !t.IsInterface);
+
+        MethodInfo subscribeReusableMethod = typeof(NetPacketProcessor)
+            .GetMethods()
+            .FirstOrDefault(m => m.Name == nameof(NetPacketProcessor.SubscribeReusable) &&
+                m.GetParameters().Length == 1 &&
+                m.GetParameters()[0].ParameterType.GetGenericTypeDefinition() == typeof(Action<,>)
+            )!;
+
+        MethodInfo onPacketArrivedMethod = typeof(LiteNetLibCommunicatorBase)
+            .GetMethod(nameof(OnPacketArrived), BindingFlags.NonPublic | BindingFlags.Instance)!;
+
+        // Register all network packets by calling the method bellow where T is our found network packet type
+        // NetPacketProcessor.SubscribeReusable<T, NetPeer>(Action<T, NetPeer> onReceive)
+        foreach (var packetType in packetTypes)
+        {
+            var genericOnPacketArrivedMethod = onPacketArrivedMethod.MakeGenericMethod(packetType);
+
+            var delegateType = typeof(Action<,>).MakeGenericType(packetType, typeof(NetPeer));
+            var delegateHandler = Delegate.CreateDelegate(delegateType, this, genericOnPacketArrivedMethod);
+
+            var genericSubscribeReusableMethod = subscribeReusableMethod.MakeGenericMethod(packetType, typeof(NetPeer));
+            genericSubscribeReusableMethod.Invoke(netPacketProcessor, [delegateHandler]);
+        }
+    }
+
+    public LiteNetLibCommunicatorBase()
+    {
+        Listener = new EventBasedNetListener();
+        Manager = new NetManager(Listener);
+
+        Listener.NetworkReceiveEvent += NetworkReceiveEvent;
+
+        SetupEnginePackets();
+        SetupPackets();
+    }
+
+    private void SetupEnginePackets()
+    {
+        // I know, ugly af. I need to find a better way
+        netPacketProcessor.RegisterNestedType(AABBNetPacker.Write, AABBNetPacker.Read);
+        netPacketProcessor.RegisterNestedType(CircleNetPacker.Write, CircleNetPacker.Read);
+        netPacketProcessor.RegisterNestedType(ColorHSVNetPacker.Write, ColorHSVNetPacker.Read);
+        netPacketProcessor.RegisterNestedType(ColorRGBANetPacker.Write, ColorRGBANetPacker.Read);
+        netPacketProcessor.RegisterNestedType(ColorRGBNetPacker.Write, ColorRGBNetPacker.Read);
+        netPacketProcessor.RegisterNestedType(Line2DEquationNetPacker.Write, Line2DEquationNetPacker.Read);
+        netPacketProcessor.RegisterNestedType(Line2DNetPacker.Write, Line2DNetPacker.Read);
+        netPacketProcessor.RegisterNestedType(Projection1DNetPacker.Write, Projection1DNetPacker.Read);
+        netPacketProcessor.RegisterNestedType(QuaternionNetPacker.Write, QuaternionNetPacker.Read);
+        netPacketProcessor.RegisterNestedType(Shape2DNetPacker.Write, Shape2DNetPacker.Read);
+        netPacketProcessor.RegisterNestedType(TriangleNetPacker.Write, TriangleNetPacker.Read);
+        netPacketProcessor.RegisterNestedType(Vector2DNetPacker.Write, Vector2DNetPacker.Read);
+        netPacketProcessor.RegisterNestedType(Vector3DNetPacker.Write, Vector3DNetPacker.Read);
+    }
+
+    public void SubscribeToPackets<T>(Action<T> callback)
+    {
+        if (!listeners.TryGetValue(typeof(T), out List<Delegate>? delegates))
+        {
+            delegates = [];
+            listeners.Add(typeof(T), delegates);
+        }
+
+        delegates.Add(callback);
+    }
+
+    public void UnsubscribeFromPackets<T>(Action<T> callback)
+    {
+        if (!listeners.TryGetValue(typeof(T), out List<Delegate>? delegates))
+            return;
+
+        delegates.Remove(callback);
+    }
+}

Shared/Network/LiteNetLib/LiteNetLibServer.cs

@@ -0,0 +1,61 @@
+using System.Linq;
+
+using LiteNetLib;
+using LiteNetLib.Utils;
+
+namespace Syntriax.Engine.Network;
+
+public class LiteNetLibServer : LiteNetLibCommunicatorBase, INetworkCommunicatorServer
+{
+    public string Password { get; private set; } = string.Empty;
+    public int MaxConnectionCount { get; private set; } = 2;
+    public int Port { get; private set; } = 8888;
+
+    private readonly NetDataWriter netDataWriter = new();
+
+    public LiteNetLibServer() : this(8888, 2) { }
+    public LiteNetLibServer(int port, int maxConnectionCount) : base()
+    {
+        MaxConnectionCount = maxConnectionCount;
+        Port = port;
+
+        Listener.ConnectionRequestEvent += request =>
+        {
+            if (Manager.ConnectedPeersCount < maxConnectionCount)
+                request.AcceptIfKey(Password);
+            else
+                request.Reject();
+        };
+    }
+
+    public INetworkCommunicatorServer Start(int port, int maxConnectionCount, string? password = null)
+    {
+        if (!IsInUniverse)
+            throw new($"{nameof(LiteNetLibServer)} must be in an universe to start");
+
+        Password = password ?? string.Empty;
+        MaxConnectionCount = maxConnectionCount;
+        Port = port;
+
+        Manager.Start(port);
+
+        return this;
+    }
+
+
+    public INetworkCommunicatorServer SendToClient<T>(string to, T packet) where T : class, new()
+    {
+        bool isBroadcastToAll = to.CompareTo("*") == 0;
+
+        netDataWriter.Reset();
+        netPacketProcessor.Write(netDataWriter, packet);
+        if (isBroadcastToAll)
+            Manager.SendToAll(netDataWriter, DeliveryMethod.ReliableOrdered);
+        else if (Manager.ConnectedPeerList.FirstOrDefault(p => p.Id.ToString().CompareTo(to) == 0) is NetPeer netPeer)
+            netPeer.Send(netDataWriter, DeliveryMethod.ReliableOrdered);
+        else
+            throw new($"Peer {to} couldn't be found.");
+
+        return this;
+    }
+}

Shared/Network/LiteNetLib/Packers/AABBNetPacker.cs

@@ -0,0 +1,22 @@
+using LiteNetLib.Utils;
+
+using Syntriax.Engine.Core;
+
+namespace Syntriax.Engine.Network;
+
+internal static class AABBNetPacker
+{
+    internal static void Write(NetDataWriter writer, AABB data)
+    {
+        Vector2DNetPacker.Write(writer, data.LowerBoundary);
+        Vector2DNetPacker.Write(writer, data.UpperBoundary);
+    }
+
+    internal static AABB Read(NetDataReader reader)
+    {
+        Vector2D lowerBoundary = Vector2DNetPacker.Read(reader);
+        Vector2D upperBoundary = Vector2DNetPacker.Read(reader);
+
+        return new AABB(lowerBoundary, upperBoundary);
+    }
+}

Shared/Network/LiteNetLib/Packers/CircleNetPacker.cs

@@ -0,0 +1,22 @@
+using LiteNetLib.Utils;
+
+using Syntriax.Engine.Core;
+
+namespace Syntriax.Engine.Network;
+
+internal static class CircleNetPacker
+{
+    internal static void Write(NetDataWriter writer, Circle data)
+    {
+        Vector2DNetPacker.Write(writer, data.Center);
+        writer.Put(data.Radius);
+    }
+
+    internal static Circle Read(NetDataReader reader)
+    {
+        Vector2D center = Vector2DNetPacker.Read(reader);
+        float radius = reader.GetFloat();
+
+        return new Circle(center, radius);
+    }
+}

Shared/Network/LiteNetLib/Packers/ColorHSVNetPacker.cs

@@ -0,0 +1,24 @@
+using LiteNetLib.Utils;
+
+using Syntriax.Engine.Core;
+
+namespace Syntriax.Engine.Network;
+
+internal static class ColorHSVNetPacker
+{
+    internal static void Write(NetDataWriter writer, ColorHSV data)
+    {
+        writer.Put(data.Hue);
+        writer.Put(data.Saturation);
+        writer.Put(data.Value);
+    }
+
+    internal static ColorHSV Read(NetDataReader reader)
+    {
+        float hue = reader.GetFloat();
+        float saturation = reader.GetFloat();
+        float value = reader.GetFloat();
+
+        return new ColorHSV(hue, saturation, value);
+    }
+}

Shared/Network/LiteNetLib/Packers/ColorRGBANetPacker.cs

@@ -0,0 +1,26 @@
+using LiteNetLib.Utils;
+
+using Syntriax.Engine.Core;
+
+namespace Syntriax.Engine.Network;
+
+internal static class ColorRGBANetPacker
+{
+    internal static void Write(NetDataWriter writer, ColorRGBA data)
+    {
+        writer.Put(data.R);
+        writer.Put(data.G);
+        writer.Put(data.B);
+        writer.Put(data.A);
+    }
+
+    internal static ColorRGBA Read(NetDataReader reader)
+    {
+        byte red = reader.GetByte();
+        byte green = reader.GetByte();
+        byte blue = reader.GetByte();
+        byte alpha = reader.GetByte();
+
+        return new ColorRGBA(red, green, blue, alpha);
+    }
+}

Shared/Network/LiteNetLib/Packers/ColorRGBNetPacker.cs

@@ -0,0 +1,24 @@
+using LiteNetLib.Utils;
+
+using Syntriax.Engine.Core;
+
+namespace Syntriax.Engine.Network;
+
+internal static class ColorRGBNetPacker
+{
+    internal static void Write(NetDataWriter writer, ColorRGB data)
+    {
+        writer.Put(data.R);
+        writer.Put(data.G);
+        writer.Put(data.B);
+    }
+
+    internal static ColorRGB Read(NetDataReader reader)
+    {
+        byte red = reader.GetByte();
+        byte green = reader.GetByte();
+        byte blue = reader.GetByte();
+
+        return new ColorRGB(red, green, blue);
+    }
+}

Shared/Network/LiteNetLib/Packers/Line2DEquationNetPacker.cs

@@ -0,0 +1,22 @@
+using LiteNetLib.Utils;
+
+using Syntriax.Engine.Core;
+
+namespace Syntriax.Engine.Network;
+
+internal static class Line2DEquationNetPacker
+{
+    internal static void Write(NetDataWriter writer, Line2DEquation data)
+    {
+        writer.Put(data.Slope);
+        writer.Put(data.OffsetY);
+    }
+
+    internal static Line2DEquation Read(NetDataReader reader)
+    {
+        float slope = reader.GetFloat();
+        float offsetY = reader.GetFloat();
+
+        return new Line2DEquation(slope, offsetY);
+    }
+}

Shared/Network/LiteNetLib/Packers/Line2DNetPacker.cs

@@ -0,0 +1,22 @@
+using LiteNetLib.Utils;
+
+using Syntriax.Engine.Core;
+
+namespace Syntriax.Engine.Network;
+
+internal static class Line2DNetPacker
+{
+    internal static void Write(NetDataWriter writer, Line2D data)
+    {
+        Vector2DNetPacker.Write(writer, data.From);
+        Vector2DNetPacker.Write(writer, data.To);
+    }
+
+    internal static Line2D Read(NetDataReader reader)
+    {
+        Vector2D from = Vector2DNetPacker.Read(reader);
+        Vector2D to = Vector2DNetPacker.Read(reader);
+
+        return new Line2D(from, to);
+    }
+}

Shared/Network/LiteNetLib/Packers/Projection1DNetPacker.cs

@@ -0,0 +1,22 @@
+using LiteNetLib.Utils;
+
+using Syntriax.Engine.Core;
+
+namespace Syntriax.Engine.Network;
+
+internal static class Projection1DNetPacker
+{
+    internal static void Write(NetDataWriter writer, Projection1D data)
+    {
+        writer.Put(data.Min);
+        writer.Put(data.Max);
+    }
+
+    internal static Projection1D Read(NetDataReader reader)
+    {
+        float min = reader.GetFloat();
+        float max = reader.GetFloat();
+
+        return new Projection1D(min, max);
+    }
+}

Shared/Network/LiteNetLib/Packers/QuaternionNetPacker.cs

@@ -0,0 +1,26 @@
+using LiteNetLib.Utils;
+
+using Syntriax.Engine.Core;
+
+namespace Syntriax.Engine.Network;
+
+internal static class QuaternionNetPacker
+{
+    internal static void Write(NetDataWriter writer, Quaternion data)
+    {
+        writer.Put(data.X);
+        writer.Put(data.Y);
+        writer.Put(data.Z);
+        writer.Put(data.W);
+    }
+
+    internal static Quaternion Read(NetDataReader reader)
+    {
+        float x = reader.GetFloat();
+        float y = reader.GetFloat();
+        float z = reader.GetFloat();
+        float w = reader.GetFloat();
+
+        return new Quaternion(x, y, z, w);
+    }
+}

Shared/Network/LiteNetLib/Packers/Shape2DNetPacker.cs

@@ -0,0 +1,27 @@
+using System.Collections.Generic;
+using LiteNetLib.Utils;
+
+using Syntriax.Engine.Core;
+
+namespace Syntriax.Engine.Network;
+
+internal static class Shape2DNetPacker
+{
+    internal static void Write(NetDataWriter writer, Shape2D data)
+    {
+        writer.Put(data.Vertices.Count);
+        foreach (Vector2D vertex in data.Vertices)
+            Vector2DNetPacker.Write(writer, vertex);
+    }
+
+    internal static Shape2D Read(NetDataReader reader)
+    {
+        int verticesCount = reader.GetInt();
+        List<Vector2D> vertices = new(verticesCount);
+
+        for (int i = 0; i < verticesCount; i++)
+            vertices.Add(Vector2DNetPacker.Read(reader));
+
+        return new Shape2D(vertices);
+    }
+}

Shared/Network/LiteNetLib/Packers/TriangleNetPacker.cs

@@ -0,0 +1,24 @@
+using LiteNetLib.Utils;
+
+using Syntriax.Engine.Core;
+
+namespace Syntriax.Engine.Network;
+
+internal static class TriangleNetPacker
+{
+    internal static void Write(NetDataWriter writer, Triangle data)
+    {
+        Vector2DNetPacker.Write(writer, data.A);
+        Vector2DNetPacker.Write(writer, data.B);
+        Vector2DNetPacker.Write(writer, data.C);
+    }
+
+    internal static Triangle Read(NetDataReader reader)
+    {
+        Vector2D a = Vector2DNetPacker.Read(reader);
+        Vector2D b = Vector2DNetPacker.Read(reader);
+        Vector2D c = Vector2DNetPacker.Read(reader);
+
+        return new Triangle(a, b, c);
+    }
+}

Shared/Network/LiteNetLib/Packers/Vector2DNetPacker.cs

@@ -0,0 +1,22 @@
+using LiteNetLib.Utils;
+
+using Syntriax.Engine.Core;
+
+namespace Syntriax.Engine.Network;
+
+internal static class Vector2DNetPacker
+{
+    internal static void Write(NetDataWriter writer, Vector2D data)
+    {
+        writer.Put(data.X);
+        writer.Put(data.Y);
+    }
+
+    internal static Vector2D Read(NetDataReader reader)
+    {
+        int x = reader.GetInt();
+        float y = reader.GetFloat();
+
+        return new Vector2D(x, y);
+    }
+}

Shared/Network/LiteNetLib/Packers/Vector3DNetPacker.cs

@@ -0,0 +1,24 @@
+using LiteNetLib.Utils;
+
+using Syntriax.Engine.Core;
+
+namespace Syntriax.Engine.Network;
+
+internal static class Vector3DNetPacker
+{
+    internal static void Write(NetDataWriter writer, Vector3D data)
+    {
+        writer.Put(data.X);
+        writer.Put(data.Y);
+        writer.Put(data.Z);
+    }
+
+    internal static Vector3D Read(NetDataReader reader)
+    {
+        int x = reader.GetInt();
+        float y = reader.GetFloat();
+        float z = reader.GetFloat();
+
+        return new Vector3D(x, y, z);
+    }
+}