feat: Test Network

Game/Behaviours/BallBehaviour.cs

@@ -1,5 +1,6 @@
 using System;
-
+using LiteNetLib;
+using Pong.Network;
 using Syntriax.Engine.Core;
 using Syntriax.Engine.Physics2D;
 using Syntriax.Engine.Physics2D.Abstract;
@@ -14,6 +15,7 @@ public class BallBehaviour : BehaviourOverride
 
     private readonly Random random = new();
     private IRigidBody2D rigidBody = null!;
+    private INetworkCommunicator communicator = null!;
 
     protected override void OnFirstActiveFrame()
     {
@@ -21,11 +23,14 @@ public class BallBehaviour : BehaviourOverride
             throw new Exception($"{nameof(IRigidBody2D)} is missing on {GameObject.Name}.");
         if (!BehaviourController.TryGetBehaviour(out ICollider2D? foundCollider))
             throw new Exception($"{nameof(ICollider2D)} is missing on {GameObject.Name}.");
+        if (!GameObject.GameManager.TryFindBehaviour(out INetworkCommunicator? foundCommunicator))
+            throw new Exception($"{nameof(INetworkCommunicator)} is missing on GameManager.");
 
         foundCollider.OnCollisionDetected += OnCollisionDetected;
 
         rigidBody = foundRigidBody;
-
+        communicator = foundCommunicator;
+        communicator.RegisterEntityListener(this, OnDataReceived);
         if (GameObject.GameManager.TryFindBehaviour(out PongManagerBehaviour? pongManager))
         {
             pongManager.OnReset += ResetBall;
@@ -34,6 +39,12 @@ public class BallBehaviour : BehaviourOverride
         }
     }
 
+    private void OnDataReceived(NetPacketReader reader)
+    {
+        rigidBody.Transform.Position = reader.GetVector2D();
+        rigidBody.Velocity = reader.GetVector2D();
+    }
+
     private void DisableBall(PongManagerBehaviour pongManager)
     {
         BehaviourController.GameObject.Transform.Position = Vector2D.Zero;
@@ -45,6 +56,8 @@ public class BallBehaviour : BehaviourOverride
         StateEnable.Enabled = true;
         BehaviourController.GameObject.Transform.Position = Vector2D.Zero;
         rigidBody.Velocity = GetRandomDirection() * Speed;
+
+        SendBallData();
     }
 
     private Vector2D GetRandomDirection()
@@ -70,6 +83,19 @@ public class BallBehaviour : BehaviourOverride
             rigidBody.Velocity = information.Left.Transform.Position.FromTo(information.Right.Transform.Position).Normalized * rigidBody.Velocity.Magnitude;
         else
             rigidBody.Velocity = rigidBody.Velocity.Reflect(information.Normal);
+
+        SendBallData();
+    }
+
+    private void SendBallData()
+    {
+        if (communicator is not INetworkServer server)
+            return;
+
+        LiteNetLib.Utils.NetDataWriter dataWriter = communicator.GetEntityWriter(this);
+        dataWriter.Put(rigidBody.Transform.Position);
+        dataWriter.Put(rigidBody.Velocity);
+        server.Manager.SendToAll(dataWriter, LiteNetLib.DeliveryMethod.ReliableOrdered);
     }
 
     public BallBehaviour() { }

Game/Behaviours/PaddleBehaviour.cs

@@ -2,6 +2,11 @@ using System;
 
 using Microsoft.Xna.Framework.Input;
 
+using LiteNetLib;
+using LiteNetLib.Utils;
+
+using Pong.Network;
+
 using Syntriax.Engine.Core;
 using Syntriax.Engine.Input;
 
@@ -19,6 +24,7 @@ public class PaddleBehaviour(Keys Up, Keys Down, float High, float Low, float Sp
     private bool isDownPressed = false;
 
     private IButtonInputs<Keys> inputs = null!;
+    private INetworkCommunicator communicator = null!;
 
     protected override void OnUpdate()
     {
@@ -26,23 +32,43 @@ public class PaddleBehaviour(Keys Up, Keys Down, float High, float Low, float Sp
             return;
 
         if (isUpPressed)
-            GameObject.Transform.Position = GameObject.Transform.Position + Vector2D.Up * (float)Time.Elapsed.TotalSeconds * Speed;
+            MovePaddle(Vector2D.Up * (float)Time.Elapsed.TotalSeconds * Speed);
         else if (isDownPressed)
-            GameObject.Transform.Position = GameObject.Transform.Position + -Vector2D.Up * (float)Time.Elapsed.TotalSeconds * Speed;
+            MovePaddle(-Vector2D.Up * (float)Time.Elapsed.TotalSeconds * Speed);
 
         GameObject.Transform.Position = new Vector2D(GameObject.Transform.Position.X, MathF.Max(MathF.Min(GameObject.Transform.Position.Y, High), Low));
     }
 
+    private void MovePaddle(Vector2D vectorToAdd)
+    {
+        GameObject.Transform.Position += vectorToAdd;
+
+        NetDataWriter dataWriter = communicator.GetEntityWriter(this);
+        dataWriter.Put(Transform.Position);
+        communicator.Manager.SendToAll(dataWriter, LiteNetLib.DeliveryMethod.Unreliable);
+    }
+
     protected override void OnFirstActiveFrame()
     {
         if (!BehaviourController.TryGetBehaviour<IButtonInputs<Keys>>(out var behaviourResult))
             inputs = behaviourResult ?? BehaviourController.AddBehaviour<KeyboardInputsBehaviour>();
 
+        if (!GameObject.GameManager.TryFindBehaviour(out INetworkCommunicator? foundCommunicator))
+            throw new Exception($"{nameof(INetworkCommunicator)} is missing on GameManager.");
+
         inputs.RegisterOnPress(Up, OnUpPressed);
         inputs.RegisterOnRelease(Up, OnUpReleased);
 
         inputs.RegisterOnPress(Down, OnDownPressed);
         inputs.RegisterOnRelease(Down, OnDownReleased);
+
+        communicator = foundCommunicator;
+        communicator.RegisterEntityListener(this, OnDataReceived);
+    }
+
+    private void OnDataReceived(NetPacketReader reader)
+    {
+        Transform.Position = reader.GetVector2D();
     }
 
     protected override void OnFinalize()

Game/Behaviours/PongManagerBehaviour.cs

@@ -2,6 +2,10 @@ using System;
 
 using Microsoft.Xna.Framework.Input;
 
+using LiteNetLib;
+
+using Pong.Network;
+
 using Syntriax.Engine.Core;
 
 namespace Pong.Behaviours;
@@ -12,6 +16,8 @@ public class PongManagerBehaviour : BehaviourOverride
     public Action<PongManagerBehaviour>? OnFinished { get; set; } = null;
     public Action<PongManagerBehaviour>? OnScored { get; set; } = null;
 
+    private INetworkCommunicator communicator = null!;
+
     public int ScoreLeft { get; private set; } = 0;
     public int ScoreRight { get; private set; } = 0;
     public int ScoreSum => ScoreLeft + ScoreRight;
@@ -28,15 +34,31 @@ public class PongManagerBehaviour : BehaviourOverride
         if (!BehaviourController.TryGetBehaviour(out buttonInputs))
             buttonInputs = BehaviourController.AddBehaviour<KeyboardInputsBehaviour>();
 
+        if (!GameObject.GameManager.TryFindBehaviour(out INetworkCommunicator? foundCommunicator))
+            throw new Exception($"{nameof(INetworkCommunicator)} is missing on GameManager.");
+
         buttonInputs.RegisterOnRelease(Keys.Space, (_, _1) => Reset());
+
+        communicator = foundCommunicator;
+        communicator.RegisterEntityListener(this, OnMessageReceived);
     }
 
+    private void OnMessageReceived(NetPacketReader reader)
+    {
+        ScoreLeft = reader.GetInt();
+        ScoreRight = reader.GetInt();
+        OnScored?.Invoke(this);
+
+        CheckFinish();
+    }
 
     public void ScoreToLeft()
     {
         ScoreLeft++;
         OnScored?.Invoke(this);
 
+        SendData();
+
         CheckFinish();
     }
 
@@ -45,6 +67,8 @@ public class PongManagerBehaviour : BehaviourOverride
         ScoreRight++;
         OnScored?.Invoke(this);
 
+        SendData();
+
         CheckFinish();
     }
 
@@ -52,6 +76,8 @@ public class PongManagerBehaviour : BehaviourOverride
     {
         ScoreLeft = ScoreRight = 0;
         OnReset?.Invoke(this);
+
+        SendData();
     }
 
     private void CheckFinish()
@@ -61,4 +87,15 @@ public class PongManagerBehaviour : BehaviourOverride
         if (ScoreLeft > halfwayScore || ScoreRight > halfwayScore)
             OnFinished?.Invoke(this);
     }
+
+    private void SendData()
+    {
+        if (communicator is not INetworkServer server)
+            return;
+
+        LiteNetLib.Utils.NetDataWriter dataWriter = communicator.GetEntityWriter(this);
+        dataWriter.Put(ScoreLeft);
+        dataWriter.Put(ScoreRight);
+        server.Manager.SendToAll(dataWriter, LiteNetLib.DeliveryMethod.ReliableOrdered);
+    }
 }

Game/Behaviours/TextScoreBehaviour.cs

@@ -14,6 +14,7 @@ public class TextScoreBehaviour : TextBehaviour
         if (!GameObject.GameManager.TryFindBehaviour(out pongManager))
             return;
 
+        pongManager.OnFinished += UpdateScores;
         pongManager.OnScored += UpdateScores;
         pongManager.OnReset += UpdateScores;
 

Game/GamePong.cs

@@ -1,16 +1,19 @@
 using System;
+
 using Microsoft.Xna.Framework;
 using Microsoft.Xna.Framework.Graphics;
 using Microsoft.Xna.Framework.Input;
 
-using Pong.Behaviours;
 using Apos.Shapes;
 
+using Pong.Behaviours;
+using Pong.Network;
+
 using Syntriax.Engine.Core;
 using Syntriax.Engine.Core.Abstract;
 using Syntriax.Engine.Physics2D;
-using Syntriax.Engine.Physics2D.Primitives;
 using Syntriax.Engine.Physics2D.Abstract;
+using Syntriax.Engine.Physics2D.Primitives;
 
 namespace Pong;
 
@@ -79,7 +82,7 @@ public class GamePong : Game
         gameObjectBall.Transform.SetTransform(position: new Vector2D(0, 0f), scale: new Vector2D(10f, 10f));
 
         gameObjectBall.BehaviourController.AddBehaviour<CircleBehaviour>(new Circle(Vector2D.Zero, 1f));
-        gameObjectBall.BehaviourController.AddBehaviour<BallBehaviour>();
+        gameObjectBall.BehaviourController.AddBehaviour<BallBehaviour>().Id = "ball";
         gameObjectBall.BehaviourController.AddBehaviour<RigidBody2D>();
 
         ////////////////////////////////////////////////////////////////////////////////////
@@ -87,13 +90,13 @@ public class GamePong : Game
         IGameObject gameObjectLeftPaddle = gameManager.InstantiateGameObject<GameObject>().SetGameObject("Left Paddle");
         gameObjectLeftPaddle.Transform.SetTransform(position: new Vector2D(-468f, 0f), scale: new Vector2D(15f, 60f));
 
-        gameObjectLeftPaddle.BehaviourController.AddBehaviour<PaddleBehaviour>(Keys.W, Keys.S, 228f, -228f, 400f);
+        gameObjectLeftPaddle.BehaviourController.AddBehaviour<PaddleBehaviour>(Keys.W, Keys.S, 228f, -228f, 400f).Id = "leftPaddle"; ;
         gameObjectLeftPaddle.BehaviourController.AddBehaviour<ShapeBehaviour>(Shape.Box);
         gameObjectLeftPaddle.BehaviourController.AddBehaviour<RigidBody2D>().IsStatic = true;
 
         IGameObject gameObjectRightPaddle = gameManager.InstantiateGameObject<GameObject>().SetGameObject("Right Paddle");
         gameObjectRightPaddle.Transform.SetTransform(position: new Vector2D(468f, 0f), scale: new Vector2D(15f, 60f));
-        gameObjectRightPaddle.BehaviourController.AddBehaviour<PaddleBehaviour>(Keys.Up, Keys.Down, 228f, -228f, 400f);
+        gameObjectRightPaddle.BehaviourController.AddBehaviour<PaddleBehaviour>(Keys.Up, Keys.Down, 228f, -228f, 400f).Id = "rightPaddle"; ;
         gameObjectRightPaddle.BehaviourController.AddBehaviour<ShapeBehaviour>(Shape.Box);
         gameObjectRightPaddle.BehaviourController.AddBehaviour<RigidBody2D>().IsStatic = true;
 
@@ -130,6 +133,18 @@ public class GamePong : Game
         IGameObject gameObjectRightScoreText = gameManager.InstantiateGameObject<GameObject>().SetGameObject("Score Right");
         gameObjectRightScoreText.Transform.SetTransform(position: new Vector2D(250f, 250f), scale: Vector2D.One * .25f);
         gameObjectRightScoreText.BehaviourController.AddBehaviour<TextScoreBehaviour>(false, spriteFont);
+
+        string[] commandLineArguments = Environment.GetCommandLineArgs();
+        if (commandLineArguments.Length != 1)
+        {
+            if (commandLineArguments[1].Equals("server", StringComparison.OrdinalIgnoreCase))
+                pongManager.BehaviourController.AddBehaviour<NetworkServer>().Start(8888, 2);
+            else
+                pongManager.BehaviourController.AddBehaviour<NetworkClient>().Connect(commandLineArguments[1], 8888);
+
+        }
+        else
+            pongManager.BehaviourController.AddBehaviour<NetworkClient>().Connect("127.0.0.1", 8888);
     }
 
     protected override void Update(GameTime gameTime)