feat: Paddle Data Send

.vscode/launch.json

@@ -10,9 +10,9 @@
       "request": "launch",
       "preLaunchTask": "build",
       // If you have changed target frameworks, make sure to update the program path.
-      "program": "${workspaceFolder}/bin/Debug/net8.0/${workspaceFolderBasename}.dll",
-      "args": [],
-      "cwd": "${workspaceFolder}",
+      "program": "${workspaceFolder}/Game/bin/Debug/net8.0/Game.dll",
+      "args": ["server"],
+      "cwd": "${workspaceFolder}/Game",
       // For more information about the 'console' field, see https://aka.ms/VSCode-CS-LaunchJson-Console
       "console": "internalConsole",
       "stopAtEntry": false

.vscode/tasks.json

@@ -9,7 +9,10 @@
         "kind": "build",
         "isDefault": true
       },
-      "label": "build"
+      "label": "build",
+      "options": {
+        "cwd": "${workspaceFolder}/Game"
+      }
     }
   ]
 }

Game/Abstract/IContentLoader.cs

@@ -0,0 +1,8 @@
+using Microsoft.Xna.Framework.Content;
+
+namespace Pong.Behaviours;
+
+public interface IMonoGameContentLoader
+{
+    void LoadContent(ContentManager content);
+}

Game/Abstract/IDisplayableShape.cs

@@ -1,6 +1,6 @@
 using Apos.Shapes;
 
-namespace Pong.Behaviours;
+namespace Syntriax.Engine.Core.Abstract;
 
 public interface IDisplayableShape
 {

Game/Abstract/IDisplayableSprite.cs

@@ -2,7 +2,7 @@ using Microsoft.Xna.Framework.Graphics;
 
 namespace Syntriax.Engine.Core.Abstract;
 
-public interface IDisplayable
+public interface IDisplayableSprite
 {
     public void Draw(SpriteBatch spriteBatch);
 }

Game/Behaviours/BallBehaviour.cs

@@ -0,0 +1,120 @@
+using System;
+
+using Microsoft.Xna.Framework.Audio;
+using Microsoft.Xna.Framework.Content;
+
+using LiteNetLib;
+
+using Syntriax.Engine.Core;
+using Syntriax.Engine.Network;
+using Syntriax.Engine.Network.Abstract;
+using Syntriax.Engine.Physics2D;
+using Syntriax.Engine.Physics2D.Abstract;
+
+namespace Pong.Behaviours;
+
+public class BallBehaviour : NetworkBehaviour, IMonoGameContentLoader
+{
+    public Vector2D StartDirection { get; private set; } = Vector2D.Zero;
+    public float Speed { get; set; } = 500f;
+    public float SpeedUpMultiplier { get; set; } = .0125f;
+
+    private readonly Random random = new();
+    private IRigidBody2D rigidBody = null!;
+    private INetworkCommunicator communicator = null!;
+    private SoundEffect soundEffect = null!;
+
+    public void LoadContent(ContentManager content)
+    {
+        soundEffect = content.Load<SoundEffect>("Hit");
+    }
+
+    protected override void OnFirstActiveFrame()
+    {
+        if (!BehaviourController.TryGetBehaviour(out IRigidBody2D? foundRigidBody))
+            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;
+        if (GameObject.GameManager.TryFindBehaviour(out PongManagerBehaviour? pongManager))
+        {
+            pongManager.OnReset += ResetBall;
+            pongManager.OnScored += ResetBall;
+            pongManager.OnFinished += DisableBall;
+        }
+    }
+
+    private void DisableBall(PongManagerBehaviour pongManager)
+    {
+        BehaviourController.GameObject.Transform.Position = Vector2D.Zero;
+        rigidBody.Velocity = Vector2D.Zero;
+    }
+
+    private void ResetBall(PongManagerBehaviour pongManager)
+    {
+        StateEnable.Enabled = true;
+        BehaviourController.GameObject.Transform.Position = Vector2D.Zero;
+        rigidBody.Velocity = GetRandomDirection() * Speed;
+
+        SendBallData();
+    }
+
+    private Vector2D GetRandomDirection()
+    {
+        const float AllowedRadians = 45f * Syntriax.Engine.Core.Math.DegreeToRadian;
+        float rotation = (float)random.NextDouble() * 2f * AllowedRadians - AllowedRadians;
+        bool isBackwards = (random.Next() % 2) == 1;
+        return Vector2D.Right.Rotate(isBackwards ? rotation + Syntriax.Engine.Core.Math.PI : rotation);
+    }
+
+    protected override void OnUpdate()
+    {
+        if (rigidBody.Velocity.MagnitudeSquared <= 0.01f)
+            return;
+
+        Vector2D speedUp = rigidBody.Velocity.Normalized * Time.DeltaTimeFrame;
+        rigidBody.Velocity += speedUp * SpeedUpMultiplier;
+    }
+
+    private void OnCollisionDetected(ICollider2D collider2D, CollisionDetectionInformation information)
+    {
+        if (Syntriax.Engine.Core.Math.Abs(information.Normal.Dot(Vector2D.Right)) > .25)
+            rigidBody.Velocity = information.Left.Transform.Position.FromTo(information.Right.Transform.Position).Normalized * rigidBody.Velocity.Magnitude;
+        else
+            rigidBody.Velocity = rigidBody.Velocity.Reflect(information.Normal);
+
+        soundEffect.Play();
+
+        SendBallData();
+    }
+
+    private void SendBallData()
+    {
+        if (communicator is not INetworkServer server)
+            return;
+
+        LiteNetLib.Utils.NetDataWriter dataWriter = communicator.GetMessageWriter(this);
+        dataWriter.Put(rigidBody.Transform.Position);
+        dataWriter.Put(rigidBody.Velocity);
+        server.Manager.SendToAll(dataWriter, LiteNetLib.DeliveryMethod.ReliableOrdered);
+    }
+
+    protected override void OnMessageReceived(NetPacketReader reader, NetPeer peer)
+    {
+        rigidBody.Transform.Position = reader.GetVector2D();
+        rigidBody.Velocity = reader.GetVector2D();
+    }
+
+    public BallBehaviour() { }
+    public BallBehaviour(Vector2D startDirection, float speed)
+    {
+        StartDirection = Vector2D.Normalize(startDirection);
+        Speed = speed;
+    }
+}

Game/Behaviours/CameraController.cs

@@ -0,0 +1,74 @@
+using Microsoft.Xna.Framework.Input;
+
+using Syntriax.Engine.Core;
+using Syntriax.Engine.Input;
+
+namespace Pong.Behaviours;
+
+public class CameraController : BehaviourOverride
+{
+    private MonoGameCamera2DBehaviour cameraBehaviour = null!;
+    private IButtonInputs<Keys> buttonInputs = null!;
+
+    private float defaultZoomLevel = 1f;
+
+    protected override void OnFirstActiveFrame()
+    {
+        if (BehaviourController.TryGetBehaviour(out MonoGameCamera2DBehaviour? foundCameraBehaviour))
+            cameraBehaviour = foundCameraBehaviour;
+
+        cameraBehaviour ??= BehaviourController.AddBehaviour<MonoGameCamera2DBehaviour>();
+
+        if (BehaviourController.TryGetBehaviour(out IButtonInputs<Keys>? foundButtonInputs))
+            buttonInputs = foundButtonInputs;
+
+        buttonInputs ??= BehaviourController.AddBehaviour<KeyboardInputsBehaviour>();
+        buttonInputs.RegisterOnPress(Keys.F, SwitchToFullScreen);
+        buttonInputs.RegisterOnPress(Keys.R, ResetCamera);
+    }
+
+    protected override void OnUpdate()
+    {
+        if (buttonInputs.IsPressed(Keys.U))
+            cameraBehaviour.Zoom += Time.Elapsed.Nanoseconds * 0.00025f;
+        if (buttonInputs.IsPressed(Keys.J))
+            cameraBehaviour.Zoom -= Time.Elapsed.Nanoseconds * 0.00025f;
+
+
+        if (buttonInputs.IsPressed(Keys.NumPad8)) cameraBehaviour.BehaviourController.GameObject.Transform.Position += Vector2D.Up.Rotate(Transform.Rotation * Math.DegreeToRadian) * Time.DeltaTimeFrame;
+        if (buttonInputs.IsPressed(Keys.NumPad2)) cameraBehaviour.BehaviourController.GameObject.Transform.Position -= Vector2D.Up.Rotate(Transform.Rotation * Math.DegreeToRadian) * Time.DeltaTimeFrame;
+        if (buttonInputs.IsPressed(Keys.NumPad6)) cameraBehaviour.BehaviourController.GameObject.Transform.Position += Vector2D.Right.Rotate(Transform.Rotation * Math.DegreeToRadian) * Time.DeltaTimeFrame;
+        if (buttonInputs.IsPressed(Keys.NumPad4)) cameraBehaviour.BehaviourController.GameObject.Transform.Position -= Vector2D.Right.Rotate(Transform.Rotation * Math.DegreeToRadian) * Time.DeltaTimeFrame;
+
+
+        if (buttonInputs.IsPressed(Keys.Q))
+            cameraBehaviour.BehaviourController.GameObject.Transform.Rotation += Time.Elapsed.Nanoseconds * 0.0025f;
+        if (buttonInputs.IsPressed(Keys.E))
+            cameraBehaviour.BehaviourController.GameObject.Transform.Rotation -= Time.Elapsed.Nanoseconds * 0.0025f;
+    }
+
+    private void SwitchToFullScreen(IButtonInputs<Keys> inputs, Keys keys)
+    {
+        if (cameraBehaviour.Graphics.IsFullScreen)
+            return;
+
+        cameraBehaviour.Graphics.PreferMultiSampling = false;
+        cameraBehaviour.Graphics.PreferredBackBufferWidth = cameraBehaviour.Graphics.GraphicsDevice.Adapter.CurrentDisplayMode.Width;
+        cameraBehaviour.Graphics.PreferredBackBufferHeight = cameraBehaviour.Graphics.GraphicsDevice.Adapter.CurrentDisplayMode.Height;
+        cameraBehaviour.Graphics.IsFullScreen = true;
+        cameraBehaviour.Graphics.ApplyChanges();
+
+        float previousScreenSize = Math.Sqrt(Math.Sqr(cameraBehaviour.Viewport.Width) + Math.Sqr(cameraBehaviour.Viewport.Height));
+        float currentScreenSize = Math.Sqrt(Math.Sqr(cameraBehaviour.Graphics.GraphicsDevice.Viewport.Width) + Math.Sqr(cameraBehaviour.Graphics.GraphicsDevice.Viewport.Height));
+        defaultZoomLevel /= previousScreenSize / currentScreenSize;
+        cameraBehaviour.Zoom /= previousScreenSize / currentScreenSize;
+        cameraBehaviour.Viewport = cameraBehaviour.Graphics.GraphicsDevice.Viewport;
+    }
+
+    private void ResetCamera(IButtonInputs<Keys> inputs, Keys keys)
+    {
+        cameraBehaviour.Zoom = defaultZoomLevel;
+        Transform.Position = Vector2D.Zero;
+        Transform.Rotation = 0f;
+    }
+}

Game/Behaviours/CircleBehaviour.cs

@@ -2,22 +2,28 @@ using Microsoft.Xna.Framework;
 
 using Apos.Shapes;
 
+using Syntriax.Engine.Core.Abstract;
 using Syntriax.Engine.Physics2D.Primitives;
 
 namespace Pong.Behaviours;
 
 public class CircleBehaviour : Syntriax.Engine.Physics2D.Collider2DCircleBehaviour, IDisplayableShape
 {
-    public CircleBehaviour(Circle circle) { this.CircleLocal = circle; }
-    public CircleBehaviour(Circle circle, float Thickness) { this.CircleLocal = circle; this.Thickness = Thickness; }
-    public CircleBehaviour(Circle circle, Color color) { this.CircleLocal = circle; Color = color; }
-    public CircleBehaviour(Circle circle, Color color, float Thickness) { this.CircleLocal = circle; this.Thickness = Thickness; Color = color; }
-
     public Color Color { get; set; } = Color.White;
     public float Thickness { get; set; } = .5f;
 
     public void Draw(ShapeBatch shapeBatch)
     {
+        if (!IsActive)
+            return;
+
+        Recalculate();
+
         shapeBatch.BorderCircle(CircleWorld.Center.ToDisplayVector2(), CircleWorld.Radius, Color);
     }
+
+    public CircleBehaviour(Circle circle) : base(circle) { }
+    public CircleBehaviour(Circle circle, float thickness) : base(circle) { Thickness = thickness; }
+    public CircleBehaviour(Circle circle, Color color) : base(circle) { Color = color; }
+    public CircleBehaviour(Circle circle, Color color, float thickness) : base(circle) { Thickness = thickness; Color = color; }
 }

Game/Behaviours/KeyboardInputsBehaviour.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-
 using Microsoft.Xna.Framework.Input;
 
 using Syntriax.Engine.Core;
@@ -10,8 +9,8 @@ namespace Pong.Behaviours;
 
 public class KeyboardInputsBehaviour : BehaviourOverride, IButtonInputs<Keys>
 {
-    private readonly Dictionary<Keys, Action<IButtonInputs<Keys>, Keys>> OnPressed = new(256);
-    private readonly Dictionary<Keys, Action<IButtonInputs<Keys>, Keys>> OnReleased = new(256);
+    private readonly Dictionary<Keys, Action<IButtonInputs<Keys>, Keys>?> OnPressed = new(256);
+    private readonly Dictionary<Keys, Action<IButtonInputs<Keys>, Keys>?> OnReleased = new(256);
 
     private int cachePressedCurrentlyCount = 0;
     private readonly Keys[] cachePressedCurrently = new Keys[256];
@@ -69,7 +68,7 @@ public class KeyboardInputsBehaviour : BehaviourOverride, IButtonInputs<Keys>
             if (WasPressed(currentlyPressedKey))
                 continue;
 
-            action.Invoke(this, currentlyPressedKey);
+            action?.Invoke(this, currentlyPressedKey);
         }
 
         for (int i = 0; i < cachePressedPreviouslyCount; i++)
@@ -82,7 +81,7 @@ public class KeyboardInputsBehaviour : BehaviourOverride, IButtonInputs<Keys>
             if (IsPressed(previouslyPressedKey))
                 continue;
 
-            action.Invoke(this, previouslyPressedKey);
+            action?.Invoke(this, previouslyPressedKey);
         }
 
         Array.Copy(cachePressedCurrently, cachePressedPreviously, cachePressedCurrentlyCount);

Game/Behaviours/MonoGameCamera2DBehaviour.cs

@@ -0,0 +1,102 @@
+using Microsoft.Xna.Framework;
+using Microsoft.Xna.Framework.Graphics;
+
+using Syntriax.Engine.Core;
+using Syntriax.Engine.Core.Abstract;
+
+namespace Pong.Behaviours;
+
+public class MonoGameCamera2DBehaviour(GraphicsDeviceManager Graphics) : BehaviourOverride, ICamera2D
+{
+    public System.Action<MonoGameCamera2DBehaviour>? OnMatrixTransformChanged { get; set; } = null;
+    public System.Action<MonoGameCamera2DBehaviour>? OnViewportChanged { get; set; } = null;
+    public System.Action<MonoGameCamera2DBehaviour>? OnZoomChanged { get; set; } = null;
+
+    private Matrix _matrixTransform = Matrix.Identity;
+
+    private Viewport _viewport = default;
+    private float _zoom = 1f;
+
+    public GraphicsDeviceManager Graphics { get; } = Graphics;
+
+    public Matrix MatrixTransform
+    {
+        get => _matrixTransform;
+        set
+        {
+            if (_matrixTransform == value)
+                return;
+
+            _matrixTransform = value;
+            OnMatrixTransformChanged?.Invoke(this);
+        }
+    }
+
+    public Vector2D Position
+    {
+        get => Transform.Position;
+        set => Transform.Position = value;
+    }
+
+    public Viewport Viewport
+    {
+        get => _viewport;
+        set
+        {
+            if (_viewport.Equals(value))
+                return;
+
+            _viewport = value;
+            OnViewportChanged?.Invoke(this);
+        }
+    }
+
+    public float Zoom
+    {
+        get => _zoom;
+        set
+        {
+            float newValue = Math.Max(0.1f, value);
+
+            if (_zoom == newValue)
+                return;
+
+            _zoom = newValue;
+            OnZoomChanged?.Invoke(this);
+        }
+    }
+
+    public float Rotation
+    {
+        get => Transform.Rotation;
+        set => Transform.Rotation = value;
+    }
+
+    System.Action<IAssignableTransform>? IAssignableTransform.OnTransformAssigned { get => GameObject.OnTransformAssigned; set => GameObject.OnTransformAssigned = value; }
+    ITransform IAssignableTransform.Transform => GameObject.Transform;
+    bool IAssignableTransform.Assign(ITransform transform) => GameObject.Assign(transform);
+
+    // TODO This causes delay since OnPreDraw calls assuming this is called in in Update 
+    public Vector2D ScreenToWorldPosition(Vector2D screenPosition)
+    {
+        Vector2D worldPosition = Vector2.Transform(screenPosition.ToVector2(), Matrix.Invert(MatrixTransform)).ToVector2D();
+        return worldPosition.Scale(EngineConverter.screenScale);
+    }
+    public Vector2D WorldToScreenPosition(Vector2D worldPosition)
+    {
+        Vector2D screenPosition = Vector2.Transform(worldPosition.ToVector2(), MatrixTransform).ToVector2D();
+        return screenPosition.Scale(EngineConverter.screenScale);
+    }
+
+    protected override void OnFirstActiveFrame()
+        => Viewport = Graphics.GraphicsDevice.Viewport;
+
+    protected override void OnPreDraw()
+    {
+        MatrixTransform =
+            Matrix.CreateTranslation(new Vector3(-Position.X, Position.Y, 0f)) *
+            Matrix.CreateRotationZ(Rotation * Math.DegreeToRadian) *
+            Matrix.CreateScale(Zoom) *
+            Matrix.CreateTranslation(new Vector3(_viewport.Width * .5f, _viewport.Height * .5f, 0f));
+    }
+}

Game/Behaviours/MonoGameCameraBehaviour.cs

@@ -1,106 +0,0 @@
-using System;
-
-using Microsoft.Xna.Framework;
-using Microsoft.Xna.Framework.Graphics;
-
-using Syntriax.Engine.Core;
-using Syntriax.Engine.Core.Abstract;
-
-namespace Pong.Behaviours;
-
-public class MonoGameCameraBehaviour : BehaviourOverride, ICamera
-{
-    public Action<ICamera>? OnPositionChanged { get; set; } = null;
-    public Action<ICamera>? OnMatrixTransformChanged { get; set; } = null;
-    public Action<ICamera>? OnViewportChanged { get; set; } = null;
-    public Action<ICamera>? OnRotationChanged { get; set; } = null;
-    public Action<ICamera>? OnZoomChanged { get; set; } = null;
-
-    private Matrix _matrixTransform = Matrix.Identity;
-
-    private Viewport _viewport = default;
-
-    private float _zoom = 1f;
-
-    public Matrix MatrixTransform
-    {
-        get => _matrixTransform;
-        set
-        {
-            if (_matrixTransform == value)
-                return;
-
-            _matrixTransform = value;
-            OnMatrixTransformChanged?.Invoke(this);
-        }
-    }
-
-    public Vector2D Position
-    {
-        get => Transform.Position;
-        set => Transform.Position = value;
-    }
-
-    public Viewport Viewport
-    {
-        get => _viewport;
-        set
-        {
-            if (_viewport.Equals(value))
-                return;
-
-            _viewport = value;
-            OnViewportChanged?.Invoke(this);
-        }
-    }
-
-    public float Zoom
-    {
-        get => _zoom;
-        set
-        {
-            float newValue = value >= .1f ? value : .1f;
-
-            if (_zoom == newValue)
-                return;
-
-            _zoom = newValue;
-            OnZoomChanged?.Invoke(this);
-        }
-    }
-
-    public float Rotation
-    {
-        get => Transform.Rotation;
-        set => Transform.Rotation = value;
-    }
-    public Action<IAssignableTransform>? OnTransformAssigned { get => throw new NotImplementedException(); set => throw new NotImplementedException(); }
-
-    ITransform IAssignableTransform.Transform => throw new NotImplementedException();
-
-    public void Update()
-    {
-        MatrixTransform =
-            Matrix.CreateTranslation(new Vector3(-Position.X, Position.Y, 0f)) *
-            Matrix.CreateRotationZ(Rotation) *
-            Matrix.CreateScale(Zoom) *
-            Matrix.CreateTranslation(new Vector3(_viewport.Width * .5f, _viewport.Height * .5f, 0f));
-    }
-
-    protected override void OnInitialize()
-    {
-        Transform.OnRotationChanged += OnTransformRotationChanged;
-        Transform.OnPositionChanged += OnTransformPositionChanged;
-    }
-
-    protected override void OnFinalize()
-    {
-        Transform.OnRotationChanged -= OnTransformRotationChanged;
-        Transform.OnPositionChanged -= OnTransformPositionChanged;
-    }
-
-    private void OnTransformRotationChanged(ITransform _) => OnRotationChanged?.Invoke(this);
-    private void OnTransformPositionChanged(ITransform _) => OnPositionChanged?.Invoke(this);
-
-    public bool Assign(ITransform transform) => GameObject.Assign(transform);
-}

Game/Behaviours/MovementBallBehaviour.cs

@@ -1,50 +1,53 @@
 using System;
-using Microsoft.Xna.Framework;
-using Microsoft.Xna.Framework.Input;
+
 using Syntriax.Engine.Core;
-using Syntriax.Engine.Input;
+using Syntriax.Engine.Physics2D;
 using Syntriax.Engine.Physics2D.Abstract;
 
 namespace Pong.Behaviours;
-public class MovementBallBehaviour(Vector2D StartDirection, float Speed) : BehaviourOverride
+
+public class MovementBallBehaviour : BehaviourOverride
 {
-    public Vector2D StartDirection { get; private set; } = Vector2D.Normalize(StartDirection);
-    public float Speed { get; set; } = Speed;
+    public Vector2D StartDirection { get; private set; } = Vector2D.Zero;
+    public float Speed { get; set; } = 500f;
+    public float SpeedUpMultiplier { get; set; } = .0125f;
+
+    private IRigidBody2D rigidBody = null!;
 
     protected override void OnFirstActiveFrame()
     {
-        if (!BehaviourController.TryGetBehaviour(out IRigidBody2D? rigidBody))
-            throw new Exception($"Where's my {nameof(IRigidBody2D)}????");
+        if (!BehaviourController.TryGetBehaviour(out IRigidBody2D? foundRigidBody))
+            throw new Exception($"{nameof(IRigidBody2D)} is missing on {GameObject.Name}.");
+        if (!BehaviourController.TryGetBehaviour(out ICollider2D? foundCollider))
+            throw new Exception($"{nameof(ICollider2D)} is missing on {GameObject.Name}.");
 
-        rigidBody.Velocity = StartDirection * Speed;
+        foundRigidBody.Velocity = StartDirection * Speed;
+        foundCollider.OnCollisionDetected += OnCollisionDetected;
+
+        rigidBody = foundRigidBody;
     }
 
-    // protected override void OnUpdate(GameTime time)
-    // {
-    //     GameObject.Transform.Position += StartDirection * (time.ElapsedGameTime.Nanoseconds * .001f) * Speed;
+    protected override void OnUpdate()
+    {
+        if (rigidBody.Velocity.MagnitudeSquared <= 0.01f)
+            return;
 
-    //     float absY = MathF.Abs(GameObject.Transform.Position.Y);
-    //     float differenceY = absY - PlayAreaBehaviour.PlayArea.Y * 0.5f;
-    //     if (differenceY > 0f)
-    //     {
-    //         if (GameObject.Transform.Position.Y > 0f)
-    //             GameObject.Transform.Position -= Vector2.UnitY * differenceY * 2f;
-    //         else
-    //             GameObject.Transform.Position += Vector2.UnitY * differenceY * 2f;
+        Vector2D speedUp = rigidBody.Velocity.Normalized * Time.DeltaTimeFrame;
+        rigidBody.Velocity += speedUp * SpeedUpMultiplier;
+    }
 
-    //         StartDirection = new(StartDirection.X, -StartDirection.Y);
-    //     }
+    private void OnCollisionDetected(ICollider2D collider2D, CollisionDetectionInformation information)
+    {
+        if (Syntriax.Engine.Core.Math.Abs(information.Normal.Dot(Vector2D.Right)) > .25)
+            rigidBody.Velocity = information.Left.Transform.Position.FromTo(information.Right.Transform.Position).Normalized * rigidBody.Velocity.Magnitude;
+        else
+            rigidBody.Velocity = rigidBody.Velocity.Reflect(information.Normal);
+    }
 
-    //     float absX = MathF.Abs(GameObject.Transform.Position.X);
-    //     float differenceX = absX - PlayAreaBehaviour.PlayArea.X * 0.5f;
-    //     if (differenceX > 0f)
-    //     {
-    //         if (GameObject.Transform.Position.X > 0f)
-    //             GameObject.Transform.Position -= Vector2.UnitX * differenceX * 2f;
-    //         else
-    //             GameObject.Transform.Position += Vector2.UnitX * differenceX * 2f;
-
-    //         StartDirection = new(-StartDirection.X, StartDirection.Y);
-    //     }
-    // }
+    public MovementBallBehaviour() { }
+    public MovementBallBehaviour(Vector2D startDirection, float speed)
+    {
+        StartDirection = Vector2D.Normalize(startDirection);
+        Speed = speed;
+    }
 }

Game/Behaviours/MovementBoxBehaviour.cs

@@ -1,62 +0,0 @@
-using System;
-using Microsoft.Xna.Framework;
-using Microsoft.Xna.Framework.Input;
-using Syntriax.Engine.Core;
-using Syntriax.Engine.Input;
-
-namespace Pong.Behaviours;
-
-public class MovementBoxBehaviour(Keys Up, Keys Down, float High, float Low, float Speed) : BehaviourOverride
-{
-    private Keys Up { get; } = Up;
-    private Keys Down { get; } = Down;
-    public float High { get; } = High;
-    public float Low { get; } = Low;
-    public float Speed { get; set; } = Speed;
-
-    private bool isUpPressed = false;
-    private bool isDownPressed = false;
-
-    private IButtonInputs<Keys> inputs = null!;
-
-    protected override void OnUpdate()
-    {
-        if (isUpPressed && isDownPressed)
-            return;
-
-        if (isUpPressed)
-            GameObject.Transform.Position = GameObject.Transform.Position + Vector2D.Up * (float)Time.Elapsed.TotalSeconds * Speed;
-        else if (isDownPressed)
-            GameObject.Transform.Position = GameObject.Transform.Position + -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));
-    }
-
-    protected override void OnFirstActiveFrame()
-    {
-        if (!BehaviourController.TryGetBehaviour<IButtonInputs<Keys>>(out var behaviourResult))
-            throw new Exception($"{nameof(IButtonInputs<Keys>)} is missing on ${GameObject.Name}.");
-
-        inputs = behaviourResult;
-
-        inputs.RegisterOnPress(Up, OnUpPressed);
-        inputs.RegisterOnRelease(Up, OnUpReleased);
-
-        inputs.RegisterOnPress(Down, OnDownPressed);
-        inputs.RegisterOnRelease(Down, OnDownReleased);
-    }
-
-    protected override void OnFinalize()
-    {
-        inputs.UnregisterOnPress(Up, OnUpPressed);
-        inputs.UnregisterOnRelease(Up, OnUpReleased);
-
-        inputs.UnregisterOnPress(Down, OnDownPressed);
-        inputs.UnregisterOnRelease(Down, OnDownReleased);
-    }
-
-    private void OnUpPressed(IButtonInputs<Keys> inputs, Keys keys) => isUpPressed = true;
-    private void OnUpReleased(IButtonInputs<Keys> inputs, Keys keys) => isUpPressed = false;
-    private void OnDownPressed(IButtonInputs<Keys> inputs, Keys keys) => isDownPressed = true;
-    private void OnDownReleased(IButtonInputs<Keys> inputs, Keys keys) => isDownPressed = false;
-}

Game/Behaviours/MovementMouseBehaviour.cs

@@ -1,13 +0,0 @@
-using System;
-using Microsoft.Xna.Framework.Input;
-using Syntriax.Engine.Core;
-
-namespace Pong.Behaviours;
-
-public class MovementMouseBehaviour : BehaviourOverride
-{
-    protected override void OnUpdate()
-    {
-        GameObject.Transform.Position = Mouse.GetState().Position.ToVector2D().ApplyDisplayScale();
-    }
-}

Game/Behaviours/NetworkedKeyboardInputs.cs

@@ -0,0 +1,154 @@
+using System;
+using System.Collections.Generic;
+using LiteNetLib;
+using Microsoft.Xna.Framework.Input;
+using Syntriax.Engine.Input;
+using Syntriax.Engine.Network;
+
+namespace Pong.Behaviours;
+
+public class NetworkedKeyboardInputs : NetworkBehaviour, IButtonInputs<Keys>
+{
+    private readonly Dictionary<Keys, Action<IButtonInputs<Keys>, Keys>?> OnPressed = new(256);
+    private readonly Dictionary<Keys, Action<IButtonInputs<Keys>, Keys>?> OnReleased = new(256);
+
+    private int cachePressedCurrentlyCount = 0;
+    private readonly Keys[] cachePressedCurrently = new Keys[256];
+
+    private int cachePressedPreviouslyCount = 0;
+    private readonly Keys[] cachePressedPreviously = new Keys[256];
+
+    public void RegisterOnPress(Keys key, Action<IButtonInputs<Keys>, Keys> callback)
+    {
+        if (OnPressed.TryGetValue(key, out var action))
+        {
+            action += callback;
+            OnPressed.Remove(key);
+            OnPressed.Add(key, action);
+            return;
+        }
+
+        OnPressed.Add(key, callback);
+    }
+
+    public void UnregisterOnPress(Keys key, Action<IButtonInputs<Keys>, Keys> callback)
+    {
+        if (OnPressed.TryGetValue(key, out var action))
+            action -= callback;
+    }
+
+    public void RegisterOnRelease(Keys key, Action<IButtonInputs<Keys>, Keys> callback)
+    {
+        if (OnReleased.TryGetValue(key, out var action))
+        {
+            action += callback;
+            OnReleased.Remove(key);
+            OnReleased.Add(key, action);
+            return;
+        }
+
+        OnReleased.Add(key, callback);
+    }
+
+    public void UnregisterOnRelease(Keys key, Action<IButtonInputs<Keys>, Keys> callback)
+    {
+        if (OnReleased.TryGetValue(key, out var action))
+            action -= callback;
+    }
+
+    protected override void OnUpdate()
+    {
+        if (!IsServer && !LocalAssigned)
+            return;
+
+        KeyboardState keyboardState = Keyboard.GetState();
+        keyboardState.GetPressedKeys(cachePressedCurrently);
+        cachePressedCurrentlyCount = keyboardState.GetPressedKeyCount();
+
+        for (int i = 0; i < cachePressedCurrentlyCount; i++)
+        {
+            Keys currentlyPressedKey = cachePressedCurrently[i];
+
+            if (!OnPressed.TryGetValue(currentlyPressedKey, out var action))
+                continue;
+
+            if (WasPressed(currentlyPressedKey))
+                continue;
+
+            action?.Invoke(this, currentlyPressedKey);
+        }
+
+        for (int i = 0; i < cachePressedPreviouslyCount; i++)
+        {
+            Keys previouslyPressedKey = cachePressedPreviously[i];
+
+            if (!OnReleased.TryGetValue(previouslyPressedKey, out var action))
+                continue;
+
+            if (IsPressed(previouslyPressedKey))
+                continue;
+
+            action?.Invoke(this, previouslyPressedKey);
+        }
+
+        Array.Copy(cachePressedCurrently, cachePressedPreviously, cachePressedCurrentlyCount);
+        cachePressedPreviouslyCount = cachePressedCurrentlyCount;
+    }
+
+    public bool IsPressed(Keys key)
+    {
+        for (int i = 0; i < cachePressedCurrentlyCount; i++)
+            if (cachePressedCurrently[i] == key)
+                return true;
+        return false;
+    }
+
+    public bool WasPressed(Keys key)
+    {
+        for (int i = 0; i < cachePressedPreviouslyCount; i++)
+            if (cachePressedPreviously[i] == key)
+                return true;
+        return false;
+    }
+
+    protected override void OnInitialize()
+    {
+        base.OnInitialize();
+        foreach (Keys key in Enum.GetValues(typeof(Keys)))
+        {
+            RegisterOnPress(key, (keys, keyVal) =>
+            {
+                if (!LocalAssigned && !IsServer)
+                    return;
+
+                var netDataWriter = NetworkCommunicator.GetMessageWriter(this);
+                netDataWriter.Put(true);
+                netDataWriter.Put((int)key);
+                NetworkCommunicator.Manager.SendToAll(netDataWriter, DeliveryMethod.ReliableOrdered);
+            });
+            RegisterOnRelease(key, (keys, keyVal) =>
+            {
+                if (!LocalAssigned && !IsServer)
+                    return;
+
+                var netDataWriter = NetworkCommunicator.GetMessageWriter(this);
+                netDataWriter.Put(false);
+                netDataWriter.Put((int)key);
+                NetworkCommunicator.Manager.SendToAll(netDataWriter, DeliveryMethod.ReliableOrdered);
+            });
+        }
+    }
+
+    protected override void OnMessageReceived(NetPacketReader reader, NetPeer peer)
+    {
+        bool isPressed = reader.GetBool();
+        Keys key = (Keys)reader.GetInt();
+
+        if (isPressed)
+            if (OnPressed.TryGetValue(key, out var action))
+                action?.Invoke(this, key);
+        if (!isPressed)
+            if (OnReleased.TryGetValue(key, out var action))
+                action?.Invoke(this, key);
+    }
+}

Game/Behaviours/PaddleBehaviour.cs

@@ -0,0 +1,101 @@
+using System;
+
+using Microsoft.Xna.Framework.Input;
+
+using LiteNetLib;
+using LiteNetLib.Utils;
+
+using Syntriax.Engine.Core;
+using Syntriax.Engine.Input;
+using Syntriax.Engine.Network;
+using Syntriax.Engine.Network.Abstract;
+
+namespace Pong.Behaviours;
+
+public class PaddleBehaviour(Keys Up, Keys Down, float High, float Low, float Speed) : BehaviourOverride
+{
+    private Keys Up { get; } = Up;
+    private Keys Down { get; } = Down;
+    public float High { get; } = High;
+    public float Low { get; } = Low;
+    public float Speed { get; set; } = Speed;
+
+    private bool isUpPressed = false;
+    private bool isDownPressed = false;
+
+    private IButtonInputs<Keys> inputs = null!;
+    private INetworkCommunicator communicator = null!;
+
+    protected override void OnUpdate()
+    {
+        if (isUpPressed && isDownPressed)
+            return;
+
+        if (isUpPressed)
+            MovePaddle(Vector2D.Up * (float)Time.Elapsed.TotalSeconds * Speed);
+        else if (isDownPressed)
+            MovePaddle(-Vector2D.Up * (float)Time.Elapsed.TotalSeconds * Speed);
+    }
+
+    private void MovePaddle(Vector2D vectorToAdd)
+    {
+        GameObject.Transform.Position += vectorToAdd;
+        GameObject.Transform.Position = new Vector2D(GameObject.Transform.Position.X, MathF.Max(MathF.Min(GameObject.Transform.Position.Y, High), Low));
+    }
+
+    protected override void OnFirstActiveFrame()
+    {
+        BehaviourController.TryGetBehaviour<IButtonInputs<Keys>>(out var behaviourResult);
+        inputs = behaviourResult ?? throw new Exception($"{nameof(IButtonInputs<Keys>)} is missing on {GameObject.Name}.");
+
+        if (!GameObject.GameManager.TryFindBehaviour(out INetworkCommunicator? foundCommunicator))
+            throw new Exception($"{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);
+    }
+
+    protected override void OnFinalize()
+    {
+        inputs.UnregisterOnPress(Up, OnUpPressed);
+        inputs.UnregisterOnRelease(Up, OnUpReleased);
+
+        inputs.UnregisterOnPress(Down, OnDownPressed);
+        inputs.UnregisterOnRelease(Down, OnDownReleased);
+    }
+
+    private void UpdateNetwork()
+    {
+        NetDataWriter netDataWriter = communicator.GetEntityWriter(this);
+        netDataWriter.Put(isUpPressed);
+        netDataWriter.Put(isDownPressed);
+        netDataWriter.Put(Transform.Position);
+        communicator.Manager.SendToAll(netDataWriter, DeliveryMethod.ReliableOrdered);
+    }
+
+    private void OnDataReceived(NetPacketReader reader, NetPeer peer)
+    {
+        if (communicator is INetworkServer server)
+        {
+            reader.Get(out isUpPressed);
+            reader.Get(out isDownPressed);
+        }
+        else
+        {
+            reader.Get(out isUpPressed);
+            reader.Get(out isDownPressed);
+            Transform.Position = reader.GetVector2D();
+        }
+    }
+
+    private void OnUpPressed(IButtonInputs<Keys> inputs, Keys keys) { isUpPressed = true; UpdateNetwork(); }
+    private void OnUpReleased(IButtonInputs<Keys> inputs, Keys keys) { isUpPressed = false; UpdateNetwork(); }
+    private void OnDownPressed(IButtonInputs<Keys> inputs, Keys keys) { isDownPressed = true; UpdateNetwork(); }
+    private void OnDownReleased(IButtonInputs<Keys> inputs, Keys keys) { isDownPressed = false; UpdateNetwork(); }
+}

Game/Behaviours/PlayAreaBehaviour.cs

@@ -1,26 +0,0 @@
-using System;
-using Microsoft.Xna.Framework;
-using Syntriax.Engine.Core;
-
-namespace Pong.Behaviours;
-
-public class PlayAreaBehaviour : BehaviourOverride
-{
-    public Action<PlayAreaBehaviour>? OnPlayAreaChanged { get; set; } = null;
-
-    private Vector2 _playArea = Vector2.Zero;
-
-    public Vector2 PlayArea
-    {
-        get => _playArea;
-        set
-        {
-            if (_playArea == value)
-                return;
-
-            _playArea = value;
-            OnPlayAreaChanged?.Invoke(this);
-        }
-    }
-
-}

Game/Behaviours/PongManagerBehaviour.cs

@@ -0,0 +1,104 @@
+using System;
+
+using Microsoft.Xna.Framework.Input;
+
+using LiteNetLib;
+
+using Syntriax.Engine.Core;
+using Syntriax.Engine.Network;
+using Syntriax.Engine.Network.Abstract;
+
+namespace Pong.Behaviours;
+
+public class PongManagerBehaviour : NetworkBehaviour
+{
+    public Action<PongManagerBehaviour>? OnReset { get; set; } = null;
+    public Action<PongManagerBehaviour>? OnFinished { get; set; } = null;
+    public Action<PongManagerBehaviour>? OnScoresUpdated { 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;
+
+    public int WinScore { get; } = 5;
+
+    public PongManagerBehaviour() => WinScore = 5;
+    public PongManagerBehaviour(int winScore) => WinScore = winScore;
+
+    protected override void OnFirstActiveFrame()
+    {
+        KeyboardInputsBehaviour? buttonInputs = null!;
+
+        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;
+    }
+
+    public void ScoreToLeft()
+    {
+        ScoreLeft++;
+        OnScoresUpdated?.Invoke(this);
+        OnScored?.Invoke(this);
+
+        SendData();
+
+        CheckFinish();
+    }
+
+    public void ScoreToRight()
+    {
+        ScoreRight++;
+        OnScoresUpdated?.Invoke(this);
+        OnScored?.Invoke(this);
+
+        SendData();
+
+        CheckFinish();
+    }
+
+    public void Reset()
+    {
+        ScoreLeft = ScoreRight = 0;
+        OnScoresUpdated?.Invoke(this);
+        OnReset?.Invoke(this);
+
+        SendData();
+    }
+
+    private void CheckFinish()
+    {
+        int halfwayScore = (int)(WinScore * .5f);
+
+        if (ScoreLeft > halfwayScore || ScoreRight > halfwayScore)
+            OnFinished?.Invoke(this);
+    }
+
+    private void SendData()
+    {
+        if (communicator is not INetworkServer server)
+            return;
+
+        LiteNetLib.Utils.NetDataWriter dataWriter = communicator.GetMessageWriter(this);
+        dataWriter.Put(ScoreLeft);
+        dataWriter.Put(ScoreRight);
+        server.Manager.SendToAll(dataWriter, LiteNetLib.DeliveryMethod.ReliableOrdered);
+    }
+
+    protected override void OnMessageReceived(NetPacketReader reader, NetPeer peer)
+    {
+        ScoreLeft = reader.GetInt();
+        ScoreRight = reader.GetInt();
+        OnScoresUpdated?.Invoke(this);
+
+        CheckFinish();
+    }
+}

Game/Behaviours/RotatableBehaviour.cs

@@ -1,25 +0,0 @@
-using Syntriax.Engine.Core;
-
-namespace Pong.Behaviours;
-
-public class RotatableBehaviour : BehaviourOverride
-{
-    private KeyboardInputsBehaviour? inputs = null;
-
-    protected override void OnFirstActiveFrame()
-    {
-        if (!BehaviourController.TryGetBehaviour(out inputs))
-            inputs = BehaviourController.AddBehaviour<KeyboardInputsBehaviour>();
-    }
-
-    protected override void OnUpdate()
-    {
-        if (inputs is null)
-            return;
-
-        if (inputs.IsPressed(Microsoft.Xna.Framework.Input.Keys.NumPad4))
-            Transform.Rotation += Time.Elapsed.Nanoseconds * 0.0025f;
-        if (inputs.IsPressed(Microsoft.Xna.Framework.Input.Keys.NumPad6))
-            Transform.Rotation -= Time.Elapsed.Nanoseconds * 0.0025f;
-    }
-}

Game/Behaviours/ShapeAABBBehaviour.cs

@@ -3,6 +3,7 @@ using Microsoft.Xna.Framework;
 using Apos.Shapes;
 
 using Syntriax.Engine.Core;
+using Syntriax.Engine.Core.Abstract;
 using Syntriax.Engine.Input;
 using Syntriax.Engine.Physics2D.Abstract;
 using Syntriax.Engine.Physics2D.Primitives;
@@ -13,11 +14,6 @@ public class ShapeAABBBehaviour : BehaviourOverride, IDisplayableShape
 {
     private IShapeCollider2D? shapeCollider = null;
 
-    public ShapeAABBBehaviour() { }
-    public ShapeAABBBehaviour(float Thickness) { this.Thickness = Thickness; }
-    public ShapeAABBBehaviour(Color color) { Color = color; }
-    public ShapeAABBBehaviour(Color color, float Thickness) { this.Thickness = Thickness; Color = color; }
-
     public Color Color { get; set; } = Color.White;
     public float Thickness { get; set; } = .5f;
     public bool display = true;
@@ -44,4 +40,9 @@ public class ShapeAABBBehaviour : BehaviourOverride, IDisplayableShape
 
         shapeBatch.DrawRectangle(aabb.Center.ApplyDisplayScale().Subtract(aabb.SizeHalf).ToVector2(), aabb.Size.ToVector2(), Color.Transparent, Color.Blue);
     }
+
+    public ShapeAABBBehaviour() { }
+    public ShapeAABBBehaviour(float Thickness) { this.Thickness = Thickness; }
+    public ShapeAABBBehaviour(Color color) { Color = color; }
+    public ShapeAABBBehaviour(Color color, float Thickness) { this.Thickness = Thickness; Color = color; }
 }

Game/Behaviours/ShapeBehaviour.cs

@@ -2,28 +2,32 @@ using Microsoft.Xna.Framework;
 
 using Apos.Shapes;
 
+using Syntriax.Engine.Core.Abstract;
 using Syntriax.Engine.Physics2D.Primitives;
 
 namespace Pong.Behaviours;
 
 public class ShapeBehaviour : Syntriax.Engine.Physics2D.Collider2DShapeBehaviour, IDisplayableShape
 {
-    public ShapeBehaviour(Shape Shape) { this.ShapeLocal = Shape; }
-    public ShapeBehaviour(Shape Shape, float Thickness) { this.ShapeLocal = Shape; this.Thickness = Thickness; }
-    public ShapeBehaviour(Shape Shape, Color color) { this.ShapeLocal = Shape; Color = color; }
-    public ShapeBehaviour(Shape Shape, Color color, float Thickness) { this.ShapeLocal = Shape; this.Thickness = Thickness; Color = color; }
-
     public Color Color { get; set; } = Color.White;
     public float Thickness { get; set; } = .5f;
 
     public void Draw(ShapeBatch shapeBatch)
     {
-        int count = ShapeWorld.Vertices.Count;
+        if (!IsActive)
+            return;
 
-        shapeBatch.BorderCircle(Transform.Position.ToDisplayVector2(), 5f, Color.DarkRed);
+        Recalculate();
+
+        int count = ShapeWorld.Vertices.Count;
 
         for (int i = 0; i < count - 1; i++)
             shapeBatch.DrawLine(ShapeWorld[i].ToDisplayVector2(), ShapeWorld[i + 1].ToDisplayVector2(), Thickness, Color, Color);
         shapeBatch.DrawLine(ShapeWorld[0].ToDisplayVector2(), ShapeWorld[^1].ToDisplayVector2(), Thickness, Color, Color);
     }
+
+    public ShapeBehaviour(Shape shape) : base(shape) { }
+    public ShapeBehaviour(Shape shape, float thickness) : base(shape) { Thickness = thickness; }
+    public ShapeBehaviour(Shape shape, Color color) : base(shape) { Color = color; }
+    public ShapeBehaviour(Shape shape, Color color, float thickness) : base(shape) { Thickness = thickness; Color = color; }
 }

Game/Behaviours/TextBehaviour.cs

@@ -0,0 +1,25 @@
+using Microsoft.Xna.Framework;
+using Microsoft.Xna.Framework.Graphics;
+
+using Syntriax.Engine.Core;
+using Syntriax.Engine.Core.Abstract;
+
+namespace Pong.Behaviours;
+
+public class TextBehaviour : BehaviourOverride, IDisplayableSprite
+{
+    public SpriteFont? Font { get; set; } = null;
+    public int Size { get; set; } = 16;
+    public string Text { get; set; } = string.Empty;
+
+    public void Draw(SpriteBatch spriteBatch)
+    {
+        if (!IsActive || Font is null)
+            return;
+
+        spriteBatch.DrawString(Font, Text, Transform.Position.ToDisplayVector2(), Color.White, Transform.Rotation, Vector2.One * .5f, Transform.Scale.Magnitude, SpriteEffects.None, 0f);
+    }
+
+    public TextBehaviour() { }
+    public TextBehaviour(SpriteFont font) => Font = font;
+}

Game/Behaviours/TextScoreBehaviour.cs

@@ -0,0 +1,32 @@
+using Microsoft.Xna.Framework.Graphics;
+using Syntriax.Engine.Core;
+
+namespace Pong.Behaviours;
+
+public class TextScoreBehaviour : TextBehaviour
+{
+    public bool IsLeft { get; }
+
+    private PongManagerBehaviour? pongManager = null;
+
+    protected override void OnFirstActiveFrame()
+    {
+        if (!GameObject.GameManager.TryFindBehaviour(out pongManager))
+            return;
+
+        pongManager.OnScoresUpdated += UpdateScores;
+
+        UpdateScores(pongManager);
+    }
+
+    private void UpdateScores(PongManagerBehaviour pongManager)
+    {
+        if (IsLeft)
+            Text = pongManager.ScoreLeft.ToString();
+        else
+            Text = pongManager.ScoreRight.ToString();
+    }
+
+    public TextScoreBehaviour(bool IsLeft) => this.IsLeft = IsLeft;
+    public TextScoreBehaviour(bool IsLeft, SpriteFont font) : base(font) => this.IsLeft = IsLeft;
+}

Game/Behaviours/WallScoreBehaviour.cs

@@ -0,0 +1,19 @@
+using System;
+
+using Syntriax.Engine.Core;
+using Syntriax.Engine.Physics2D.Abstract;
+
+namespace Pong.Behaviours;
+
+public class WallScoreBehaviour(Action OnCollision) : BehaviourOverride
+{
+    private Action OnCollision { get; } = OnCollision;
+
+    protected override void OnFirstActiveFrame()
+    {
+        if (!BehaviourController.TryGetBehaviour(out ICollider2D? collider2D))
+            return;
+
+        collider2D.OnCollisionDetected += (_, _1) => OnCollision?.Invoke();
+    }
+}

Game/Content/Content.mgcb

@@ -13,51 +13,16 @@
 
 #---------------------------------- Content ---------------------------------#
 
-#begin Sprites/Circle.png
-/importer:TextureImporter
-/processor:TextureProcessor
-/processorParam:ColorKeyColor=255,0,255,255
-/processorParam:ColorKeyEnabled=True
-/processorParam:GenerateMipmaps=False
-/processorParam:PremultiplyAlpha=True
-/processorParam:ResizeToPowerOfTwo=False
-/processorParam:MakeSquare=False
-/processorParam:TextureFormat=Color
-/build:Sprites/Circle.png
+#begin Hit.wav
+/importer:WavImporter
+/processor:SoundEffectProcessor
+/processorParam:Quality=Best
+/build:Hit.wav
 
-#begin Sprites/Circle.png
-/importer:TextureImporter
-/processor:TextureProcessor
-/processorParam:ColorKeyColor=255,0,255,255
-/processorParam:ColorKeyEnabled=True
-/processorParam:GenerateMipmaps=False
+#begin UbuntuMono.spritefont
+/importer:FontDescriptionImporter
+/processor:FontDescriptionProcessor
 /processorParam:PremultiplyAlpha=True
-/processorParam:ResizeToPowerOfTwo=False
-/processorParam:MakeSquare=False
-/processorParam:TextureFormat=Color
-/build:Sprites/Circle.png
-
-#begin Sprites/Pixel.png
-/importer:TextureImporter
-/processor:TextureProcessor
-/processorParam:ColorKeyColor=255,0,255,255
-/processorParam:ColorKeyEnabled=True
-/processorParam:GenerateMipmaps=False
-/processorParam:PremultiplyAlpha=True
-/processorParam:ResizeToPowerOfTwo=False
-/processorParam:MakeSquare=False
-/processorParam:TextureFormat=Color
-/build:Sprites/Pixel.png
-
-#begin Sprites/Pixel.png
-/importer:TextureImporter
-/processor:TextureProcessor
-/processorParam:ColorKeyColor=255,0,255,255
-/processorParam:ColorKeyEnabled=True
-/processorParam:GenerateMipmaps=False
-/processorParam:PremultiplyAlpha=True
-/processorParam:ResizeToPowerOfTwo=False
-/processorParam:MakeSquare=False
-/processorParam:TextureFormat=Color
-/build:Sprites/Pixel.png
+/processorParam:TextureFormat=Compressed
+/build:UbuntuMono.spritefont
 

Game/Content/UbuntuMono.spritefont

@@ -0,0 +1,60 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+This file contains an xml description of a font, and will be read by the XNA
+Framework Content Pipeline. Follow the comments to customize the appearance
+of the font in your game, and to change the characters which are available to draw
+with.
+-->
+<XnaContent xmlns:Graphics="Microsoft.Xna.Framework.Content.Pipeline.Graphics">
+  <Asset Type="Graphics:FontDescription">
+
+    <!--
+    Modify this string to change the font that will be imported.
+    -->
+    <FontName>Ubuntu Mono</FontName>
+
+    <!--
+    Size is a float value, measured in points. Modify this value to change
+    the size of the font.
+    -->
+    <Size>144</Size>
+
+    <!--
+    Spacing is a float value, measured in pixels. Modify this value to change
+    the amount of spacing in between characters.
+    -->
+    <Spacing>0</Spacing>
+
+    <!--
+    UseKerning controls the layout of the font. If this value is true, kerning information
+    will be used when placing characters.
+    -->
+    <UseKerning>true</UseKerning>
+
+    <!--
+    Style controls the style of the font. Valid entries are "Regular", "Bold", "Italic",
+    and "Bold, Italic", and are case sensitive.
+    -->
+    <Style>Bold</Style>
+
+    <!--
+    If you uncomment this line, the default character will be substituted if you draw
+    or measure text that contains characters which were not included in the font.
+    -->
+    <!-- <DefaultCharacter>*</DefaultCharacter> -->
+
+    <!--
+    CharacterRegions control what letters are available in the font. Every
+    character from Start to End will be built and made available for drawing. The
+    default range is from 32, (ASCII space), to 126, ('~'), covering the basic Latin
+    character set. The characters are ordered according to the Unicode standard.
+    See the documentation for more information.
+    -->
+    <CharacterRegions>
+      <CharacterRegion>
+        <Start>&#32;</Start>
+        <End>&#126;</End>
+      </CharacterRegion>
+    </CharacterRegions>
+  </Asset>
+</XnaContent>

Game/Game.csproj

@@ -21,6 +21,7 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Apos.Shapes" Version="0.2.3" />
+    <PackageReference Include="LiteNetLib" Version="1.2.0" />
     <PackageReference Include="MonoGame.Framework.DesktopGL" Version="3.8.1.303" />
     <PackageReference Include="MonoGame.Content.Builder.Task" Version="3.8.1.303" />
   </ItemGroup>

Game/Game1.cs

@@ -1,245 +0,0 @@
-using System;
-using Microsoft.Xna.Framework;
-using Microsoft.Xna.Framework.Graphics;
-using Microsoft.Xna.Framework.Input;
-
-using Pong.Behaviours;
-using Apos.Shapes;
-
-using Syntriax.Engine.Core;
-using Syntriax.Engine.Core.Abstract;
-using Syntriax.Engine.Physics2D;
-using Syntriax.Engine.Physics2D.Primitives;
-
-namespace Pong;
-
-public class Game1 : Game
-{
-    private GraphicsDeviceManager _graphics = null!;
-    private PhysicsEngine2D engine;
-    private SpriteBatch _spriteBatch = null!;
-    private ShapeBatch _shapeBatch = null!;
-    public static GameManager gameManager = null!;
-    public static Sprite spriteBox = null!;
-    private MonoGameCameraBehaviour cameraBehaviour = null!;
-
-
-    public Game1()
-    {
-        engine = new PhysicsEngine2D();
-
-        _graphics = new GraphicsDeviceManager(this)
-        {
-            PreferredBackBufferWidth = 1024,
-            PreferredBackBufferHeight = 576,
-            GraphicsProfile = GraphicsProfile.HiDef
-        };
-
-        Content.RootDirectory = "Content";
-        IsMouseVisible = true;
-    }
-
-    protected override void Initialize()
-    {
-        gameManager = new();
-
-        // TODO: Add your initialization logic here
-        gameManager.Initialize();
-
-        base.Initialize();
-    }
-
-    protected override void LoadContent()
-    {
-        _spriteBatch = new SpriteBatch(GraphicsDevice);
-        _shapeBatch = new ShapeBatch(GraphicsDevice, Content);
-
-        // spriteBox = new Sprite() { Texture2D = Content.Load<Texture2D>("Sprites/Pixel") };
-        // Sprite spriteBall = new Sprite() { Texture2D = Content.Load<Texture2D>("Sprites/Circle") };
-
-        IGameObject gameObjectCamera = gameManager.InstantiateGameObject<GameObject>();
-        gameObjectCamera.Name = "Camera";
-        gameObjectCamera.Transform.Position = Vector2D.Zero;
-
-        cameraBehaviour = gameObjectCamera.BehaviourController.AddBehaviour<MonoGameCameraBehaviour>();
-        cameraBehaviour.Viewport = GraphicsDevice.Viewport;
-        gameManager.Camera = cameraBehaviour;
-
-
-        // IGameObject gameObjectCircle = gameManager.InstantiateGameObject<GameObject>();
-        // gameObjectCircle.Name = "Circle";
-        // gameObjectCircle.Transform.Position = new Vector2D(0f, -50f);
-        // gameObjectCircle.Transform.Scale = new Vector2D(25f, 25f);
-        // gameObjectCircle.BehaviourController.AddBehaviour<KeyboardInputsBehaviour>();
-        // gameObjectCircle.BehaviourController.AddBehaviour<MovementBoxBehaviour>(Keys.W, Keys.S, 268f, -268f, 400f);
-        // gameObjectCircle.BehaviourController.AddBehaviour<CircleBehaviour>(new Circle(Vector2D.Zero, 1f));
-        // engine.AddRigidBody(gameObjectCircle.BehaviourController.AddBehaviour<RigidBody2D>());
-
-        IGameObject gameObjectCircle2 = gameManager.InstantiateGameObject<GameObject>();
-        gameObjectCircle2.Name = "Circle2";
-        gameObjectCircle2.Transform.Position = new Vector2D(5f, 50f);
-        gameObjectCircle2.Transform.Scale = new Vector2D(25f, 25f);
-        gameObjectCircle2.BehaviourController.AddBehaviour<MovementMouseBehaviour>();
-        gameObjectCircle2.BehaviourController.AddBehaviour<CircleBehaviour>(new Circle(Vector2D.Zero, 1f));
-        engine.AddRigidBody(gameObjectCircle2.BehaviourController.AddBehaviour<RigidBody2D>());
-
-        IGameObject gameObjectDiamond = gameManager.InstantiateGameObject<GameObject>();
-        gameObjectDiamond.Name = "Diamond";
-        gameObjectDiamond.Transform.Position = new Vector2D(-150f, -150f);
-        gameObjectDiamond.Transform.Scale = new Vector2D(50f, 50f);
-        gameObjectDiamond.BehaviourController.AddBehaviour<KeyboardInputsBehaviour>();
-        gameObjectDiamond.BehaviourController.AddBehaviour<MovementBoxBehaviour>(Keys.W, Keys.S, 268f, -268f, 400f);
-        gameObjectDiamond.BehaviourController.AddBehaviour<RotatableBehaviour>();
-        gameObjectDiamond.BehaviourController.AddBehaviour<ShapeBehaviour>(new Shape([Vector2D.Up, Vector2D.One, Vector2D.Right, Vector2D.Down, -Vector2D.One, Vector2D.Left]));
-        gameObjectDiamond.BehaviourController.AddBehaviour<ShapeAABBBehaviour>();
-        engine.AddRigidBody(gameObjectDiamond.BehaviourController.AddBehaviour<RigidBody2D>());
-
-        IGameObject gameObjectBox = gameManager.InstantiateGameObject<GameObject>();
-        gameObjectBox.Name = "Box";
-        gameObjectBox.Transform.Position = new Vector2D(150f, -150f);
-        gameObjectBox.Transform.Scale = new Vector2D(100f, 100f);
-        gameObjectBox.BehaviourController.AddBehaviour<KeyboardInputsBehaviour>();
-        gameObjectBox.BehaviourController.AddBehaviour<MovementBoxBehaviour>(Keys.W, Keys.S, 268f, -268f, 400f);
-        gameObjectBox.BehaviourController.AddBehaviour<RotatableBehaviour>();
-        gameObjectBox.BehaviourController.AddBehaviour<ShapeBehaviour>(Shape.Pentagon);
-        gameObjectBox.BehaviourController.AddBehaviour<ShapeAABBBehaviour>();
-        engine.AddRigidBody(gameObjectBox.BehaviourController.AddBehaviour<RigidBody2D>());
-
-        for (int i = 3; i < 10; i++)
-        {
-            IGameObject Test = gameManager.InstantiateGameObject<GameObject>();
-            Test.Name = i.ToString();
-            Test.Transform.Position = new Vector2D((i - 6) * 150, 0f);
-            Test.Transform.Scale = new Vector2D(75f, 75f);
-            Test.BehaviourController.AddBehaviour<KeyboardInputsBehaviour>();
-            Test.BehaviourController.AddBehaviour<MovementBoxBehaviour>(Keys.W, Keys.S, 268f, -268f, 400f);
-            Test.BehaviourController.AddBehaviour<RotatableBehaviour>();
-            Test.BehaviourController.AddBehaviour<ShapeBehaviour>(Shape.CreateNgon(i));
-            Test.BehaviourController.AddBehaviour<ShapeAABBBehaviour>();
-            RigidBody2D rigidBody = Test.BehaviourController.AddBehaviour<RigidBody2D>();
-            rigidBody.AngularVelocity = 90f;
-            engine.AddRigidBody(rigidBody);
-        }
-
-
-        // IGameObject gameObjectShape = gameManager.InstantiateGameObject<GameObject>();
-        // gameObjectShape.Name = "Shape";
-        // gameObjectShape.Transform.Position = new Vector2D(250f, 0f);
-        // gameObjectShape.Transform.Scale = new Vector2D(100f, 100f);
-        // gameObjectShape.BehaviourController.AddBehaviour<KeyboardInputsBehaviour>();
-        // gameObjectShape.BehaviourController.AddBehaviour<MovementBoxBehaviour>(Keys.W, Keys.S, 268f, -268f, 400f);
-        // gameObjectShape.BehaviourController.AddBehaviour<RotatableBehaviour>();
-        // gameObjectShape.BehaviourController.AddBehaviour<ShapeBehaviour>(new Shape([Vector2D.Up, Vector2D.One, Vector2D.Right, Vector2D.Down, Vector2D.Zero, Vector2D.Left]));
-        // gameObjectShape.BehaviourController.AddBehaviour<ShapeAABBBehaviour>();
-    }
-
-    protected override void Update(GameTime gameTime)
-    {
-        if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
-            Exit();
-
-        if (Keyboard.GetState().IsKeyDown(Keys.F))
-        {
-            if (_graphics.IsFullScreen)
-                return;
-
-            _graphics.PreferMultiSampling = false;
-            _graphics.PreferredBackBufferWidth = GraphicsDevice.Adapter.CurrentDisplayMode.Width;
-            _graphics.PreferredBackBufferHeight = GraphicsDevice.Adapter.CurrentDisplayMode.Height;
-            _graphics.IsFullScreen = true;
-            _graphics.ApplyChanges();
-
-            float previousScreenSize = MathF.Sqrt(MathF.Pow(cameraBehaviour.Viewport.Width, 2f) + MathF.Pow(cameraBehaviour.Viewport.Height, 2f));
-            float currentScreenSize = MathF.Sqrt(MathF.Pow(GraphicsDevice.Viewport.Width, 2f) + MathF.Pow(GraphicsDevice.Viewport.Height, 2f));
-            cameraBehaviour.Zoom /= previousScreenSize / currentScreenSize;
-            cameraBehaviour.Viewport = GraphicsDevice.Viewport;
-        }
-
-        if (Keyboard.GetState().IsKeyDown(Keys.U))
-            cameraBehaviour.Zoom += gameTime.ElapsedGameTime.Nanoseconds * 0.00025f;
-        if (Keyboard.GetState().IsKeyDown(Keys.J))
-            cameraBehaviour.Zoom -= gameTime.ElapsedGameTime.Nanoseconds * 0.00025f;
-
-        if (Keyboard.GetState().IsKeyDown(Keys.Q))
-            cameraBehaviour.BehaviourController.GameObject.Transform.Rotation += gameTime.ElapsedGameTime.Nanoseconds * 0.000025f;
-        if (Keyboard.GetState().IsKeyDown(Keys.E))
-            cameraBehaviour.BehaviourController.GameObject.Transform.Rotation -= gameTime.ElapsedGameTime.Nanoseconds * 0.000025f;
-
-        if (Keyboard.GetState().IsKeyDown(Keys.N))
-        {
-            seconds = 70f;
-            while (physicsTimer + 0.01f < seconds)
-            {
-                physicsTimer += 0.01f;
-                engine.Step(.01f);
-            }
-        }
-        if (Keyboard.GetState().IsKeyDown(Keys.M))
-        {
-            seconds = 0f;
-            while (physicsTimer - 0.01f > seconds)
-            {
-                physicsTimer -= 0.01f;
-                engine.Step(-.01f);
-            }
-        }
-        if (Keyboard.GetState().IsKeyDown(Keys.Space))
-        {
-            seconds += gameTime.ElapsedGameTime.Milliseconds * .005f;
-            while (physicsTimer + 0.01f < seconds)
-            {
-                Console.WriteLine($"Physics Timer: {physicsTimer}");
-                physicsTimer += 0.01f;
-                engine.Step(.01f);
-            }
-        }
-        if (Keyboard.GetState().IsKeyDown(Keys.B))
-        {
-            seconds -= gameTime.ElapsedGameTime.Milliseconds * .005f;
-            while (physicsTimer - 0.01f > seconds)
-            {
-                Console.WriteLine($"Physics Timer: {physicsTimer}");
-                physicsTimer -= 0.01f;
-                engine.Step(-.01f);
-            }
-        }
-
-
-        while (physicsTimer + 0.01f < gameTime.TotalGameTime.TotalMilliseconds * .001f)//seconds)
-        {
-            // Console.WriteLine($"Physics Timer: {physicsTimer}");
-            physicsTimer += 0.01f;
-            engine.Step(.01f);
-        }
-        gameManager.Update(gameTime.ToEngineTime());
-        base.Update(gameTime);
-    }
-    static float physicsTimer = 0f;
-    static float seconds = 0f;
-
-    protected override void Draw(GameTime gameTime)
-    {
-        GraphicsDevice.Clear(new Color() { R = 32, G = 32, B = 32 });
-
-        // gameManager.Camera.Position = gameObjectBall.Transform.Position;
-        // Console.WriteLine($"Pos: {gameManager.Camera.Position}");
-
-        // TODO: Add your drawing code here
-        gameManager.PreDraw();
-        gameManager.Camera.Update();
-
-        _spriteBatch.Begin(SpriteSortMode.Deferred, transformMatrix: cameraBehaviour.MatrixTransform);
-        foreach (IGameObject gameObject in gameManager)
-            foreach (var displayable in gameObject.BehaviourController.GetBehaviours<IDisplayable>())
-                displayable.Draw(_spriteBatch);
-        _spriteBatch.End();
-
-        _shapeBatch.Begin(cameraBehaviour.MatrixTransform);
-        foreach (IGameObject gameObject in gameManager)
-            foreach (var displayableShape in gameObject.BehaviourController.GetBehaviours<IDisplayableShape>())
-                displayableShape.Draw(_shapeBatch);
-        _shapeBatch.End();
-
-        base.Draw(gameTime);
-    }
-}

Game/GamePong.cs

@@ -0,0 +1,200 @@
+using System;
+
+using Microsoft.Xna.Framework;
+using Microsoft.Xna.Framework.Graphics;
+using Microsoft.Xna.Framework.Input;
+
+using Apos.Shapes;
+
+using Pong.Behaviours;
+using Syntriax.Engine.Network;
+
+using Syntriax.Engine.Core;
+using Syntriax.Engine.Core.Abstract;
+using Syntriax.Engine.Physics2D;
+using Syntriax.Engine.Physics2D.Abstract;
+using Syntriax.Engine.Physics2D.Primitives;
+
+namespace Pong;
+
+public class GamePong : Game
+{
+    private readonly GraphicsDeviceManager graphics = null!;
+    private IPhysicsEngine2D physicsEngine = null!;
+    private SpriteBatch spriteBatch = null!;
+    private ShapeBatch shapeBatch = null!;
+
+    private GameManager gameManager = null!;
+    private BehaviourCollector<IDisplayableSprite> displayableCollector = null!;
+    private BehaviourCollector<IDisplayableShape> displayableShapeCollector = null!;
+    private BehaviourCollector<IMonoGameContentLoader> monoGameContentLoaderCollector = null!;
+    private MonoGameCamera2DBehaviour cameraBehaviour = null!;
+
+    private PongManagerBehaviour pongManager = null!;
+
+    private float physicsTimer = 0f;
+
+    public GamePong()
+    {
+        graphics = new GraphicsDeviceManager(this)
+        {
+            PreferredBackBufferWidth = 1024,
+            PreferredBackBufferHeight = 576,
+            GraphicsProfile = GraphicsProfile.HiDef
+        };
+
+        Content.RootDirectory = "Content";
+        IsMouseVisible = true;
+    }
+
+    protected override void Initialize()
+    {
+        // TODO: Add your initialization logic here
+        gameManager = new();
+        displayableCollector = new(gameManager);
+        displayableShapeCollector = new(gameManager);
+        monoGameContentLoaderCollector = new(gameManager);
+        physicsEngine = new PhysicsEngine2DCollector(gameManager) { IterationPerStep = 3 };
+
+        monoGameContentLoaderCollector.OnCollected += (_, cached) => cached.LoadContent(Content);
+
+        gameManager.Initialize();
+
+        base.Initialize();
+    }
+
+    protected override void LoadContent()
+    {
+        spriteBatch = new SpriteBatch(GraphicsDevice);
+        shapeBatch = new ShapeBatch(GraphicsDevice, Content);
+        SpriteFont spriteFont = Content.Load<SpriteFont>("UbuntuMono");
+
+        ////////////////////////////////////////////////////////////////////////////////////
+
+        string[] commandLineArguments = Environment.GetCommandLineArgs();
+        if (commandLineArguments.Length != 1)
+        {
+            if (commandLineArguments[1].Equals("server", StringComparison.OrdinalIgnoreCase))
+            {
+                gameManager.InstantiateGameObject().BehaviourController.AddBehaviour<NetworkServer>().Start(8888, 2);
+                Window.Title = "Pong - Server";
+            }
+            else
+            {
+                Window.Title = $"Pong - Client -> {commandLineArguments[1]}";
+                gameManager.InstantiateGameObject().BehaviourController.AddBehaviour<NetworkClient>().Connect(commandLineArguments[1], 8888);
+            }
+        }
+        else
+        {
+            gameManager.InstantiateGameObject().BehaviourController.AddBehaviour<NetworkClient>().Connect("127.0.0.1", 8888);
+            Window.Title = $"Pong - Client -> 127.0.0.1";
+        }
+
+        ////////////////////////////////////////////////////////////////////////////////////
+
+        IGameObject gameObjectCamera = gameManager.InstantiateGameObject().SetGameObject("Camera"); ;
+        gameObjectCamera.BehaviourController.AddBehaviour<CameraController>();
+        cameraBehaviour = gameObjectCamera.BehaviourController.AddBehaviour<MonoGameCamera2DBehaviour>(graphics);
+
+        ////////////////////////////////////////////////////////////////////////////////////
+
+        IGameObject gameObjectPongManager = gameManager.InstantiateGameObject().SetGameObject("Pong Game Manager");
+        pongManager = gameObjectPongManager.BehaviourController.AddBehaviour<PongManagerBehaviour>(5);
+        pongManager.Id = "pongManager";
+
+        ////////////////////////////////////////////////////////////////////////////////////
+
+        IGameObject gameObjectBall = gameManager.InstantiateGameObject().SetGameObject("Ball");
+        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>().Id = "ball";
+        gameObjectBall.BehaviourController.AddBehaviour<RigidBody2D>();
+
+        ////////////////////////////////////////////////////////////////////////////////////
+
+        IGameObject gameObjectLeftPaddle = gameManager.InstantiateGameObject().SetGameObject("Left Paddle");
+        gameObjectLeftPaddle.Transform.SetTransform(position: new Vector2D(-468f, 0f), scale: new Vector2D(15f, 60f));
+
+        gameObjectLeftPaddle.BehaviourController.AddBehaviour<NetworkedKeyboardInputs>().Id = "leftPaddleInput";
+        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().SetGameObject("Right Paddle");
+        gameObjectRightPaddle.Transform.SetTransform(position: new Vector2D(468f, 0f), scale: new Vector2D(15f, 60f));
+        gameObjectRightPaddle.BehaviourController.AddBehaviour<NetworkedKeyboardInputs>().Id = "rightPaddleInput";
+        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;
+
+        ////////////////////////////////////////////////////////////////////////////////////
+
+        IGameObject gameObjectWallTop = gameManager.InstantiateGameObject().SetGameObject("Wall Top");
+        gameObjectWallTop.Transform.SetTransform(position: new Vector2D(0f, 308f), scale: new Vector2D(552f, 20f));
+        gameObjectWallTop.BehaviourController.AddBehaviour<ShapeBehaviour>(Shape.Box);
+        gameObjectWallTop.BehaviourController.AddBehaviour<RigidBody2D>().IsStatic = true;
+
+        IGameObject gameObjectWallBottom = gameManager.InstantiateGameObject().SetGameObject("Wall Bottom");
+        gameObjectWallBottom.Transform.SetTransform(position: new Vector2D(0f, -308f), scale: new Vector2D(552f, 20f));
+        gameObjectWallBottom.BehaviourController.AddBehaviour<ShapeBehaviour>(Shape.Box);
+        gameObjectWallBottom.BehaviourController.AddBehaviour<RigidBody2D>().IsStatic = true;
+
+        IGameObject gameObjectWallRight = gameManager.InstantiateGameObject().SetGameObject("Wall Right");
+        gameObjectWallRight.Transform.SetTransform(position: new Vector2D(532f, 0f), scale: new Vector2D(20f, 328f));
+        gameObjectWallRight.BehaviourController.AddBehaviour<WallScoreBehaviour>((Action)pongManager.ScoreToLeft);
+        gameObjectWallRight.BehaviourController.AddBehaviour<ShapeBehaviour>(Shape.Box);
+        gameObjectWallRight.BehaviourController.AddBehaviour<RigidBody2D>().IsStatic = true;
+
+        IGameObject gameObjectWallLeft = gameManager.InstantiateGameObject().SetGameObject("Wall Left");
+        gameObjectWallLeft.Transform.SetTransform(position: new Vector2D(-532f, 0f), scale: new Vector2D(20f, 328f));
+        gameObjectWallLeft.BehaviourController.AddBehaviour<WallScoreBehaviour>((Action)pongManager.ScoreToRight);
+        gameObjectWallLeft.BehaviourController.AddBehaviour<ShapeBehaviour>(Shape.Box);
+        gameObjectWallLeft.BehaviourController.AddBehaviour<RigidBody2D>().IsStatic = true;
+
+        ////////////////////////////////////////////////////////////////////////////////////
+
+        IGameObject gameObjectLeftScoreText = gameManager.InstantiateGameObject().SetGameObject("Score Left");
+        gameObjectLeftScoreText.Transform.SetTransform(position: new Vector2D(-250f, 250f), scale: Vector2D.One * .25f);
+        gameObjectLeftScoreText.BehaviourController.AddBehaviour<TextScoreBehaviour>(true, spriteFont);
+
+        IGameObject gameObjectRightScoreText = gameManager.InstantiateGameObject().SetGameObject("Score Right");
+        gameObjectRightScoreText.Transform.SetTransform(position: new Vector2D(250f, 250f), scale: Vector2D.One * .25f);
+        gameObjectRightScoreText.BehaviourController.AddBehaviour<TextScoreBehaviour>(false, spriteFont);
+    }
+
+    protected override void Update(GameTime gameTime)
+    {
+        if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
+            Exit();
+
+        gameManager.Update(gameTime.ToEngineTime());
+        while (physicsTimer + 0.01f < gameTime.TotalGameTime.TotalMilliseconds * .001f)//seconds)
+        {
+            physicsTimer += 0.01f;
+            physicsEngine.Step(.01f);
+        }
+        base.Update(gameTime);
+    }
+
+    protected override void Draw(GameTime gameTime)
+    {
+        GraphicsDevice.Clear(new Color() { R = 32, G = 32, B = 32 });
+
+        // TODO: Add your drawing code here
+        gameManager.PreDraw();
+
+        spriteBatch.Begin(SpriteSortMode.Deferred, transformMatrix: cameraBehaviour.MatrixTransform);
+        foreach (var displayable in displayableCollector)
+            displayable.Draw(spriteBatch);
+        spriteBatch.End();
+
+        shapeBatch.Begin(cameraBehaviour.MatrixTransform);
+        foreach (var displayableShape in displayableShapeCollector)
+            displayableShape.Draw(shapeBatch);
+        shapeBatch.End();
+
+        base.Draw(gameTime);
+    }
+}

Game/Graphics/Abstract/Assignable/IAssignableSprite.cs

@@ -1,26 +0,0 @@
-using System;
-
-namespace Syntriax.Engine.Core.Abstract;
-
-/// <summary>
-/// Indicates the object is an <see cref="IAssignable"/> with an assignable <see cref="ISprite"/> field.
-/// </summary>
-public interface IAssignableSprite : IAssignable
-{
-    /// <summary>
-    /// Callback triggered when the <see cref="ISprite"/> value has has been assigned a new value.
-    /// </summary>
-    Action<IAssignableSprite>? OnSpriteAssigned { get; set; }
-
-    /// <inheritdoc cref="ISprite" />
-    ISprite Sprite { get; }
-
-    /// <summary>
-    /// Assign a value to the <see cref="ISprite"/> field of this object
-    /// </summary>
-    /// <param name="sprite">New <see cref="ISprite"/> to assign.</param>
-    /// <returns> 
-    /// <see cref="true"/>, if the value given assigned successfully assigned, <see cref="false"/> if not.
-    /// </returns>
-    bool Assign(ISprite sprite);
-}

Game/Graphics/Abstract/ISprite.cs

@@ -1,13 +0,0 @@
-using System;
-
-using Microsoft.Xna.Framework.Graphics;
-
-namespace Syntriax.Engine.Core.Abstract;
-
-// TODO Probably gonna have to rethink this
-public interface ISprite
-{
-    Action<ISprite>? OnTextureChanged { get; set; }
-
-    Texture2D Texture2D { get; set; }
-}

Game/Graphics/Sprite.cs

@@ -1,27 +0,0 @@
-using System;
-
-using Microsoft.Xna.Framework.Graphics;
-
-using Syntriax.Engine.Core.Abstract;
-
-namespace Syntriax.Engine.Core;
-
-public class Sprite : ISprite
-{
-    public Action<ISprite>? OnTextureChanged { get; set; }
-
-    private Texture2D _texture = null!;
-
-    public Texture2D Texture2D
-    {
-        get => _texture;
-        set
-        {
-            if (_texture == value)
-                return;
-
-            _texture = value;
-            OnTextureChanged?.Invoke(this);
-        }
-    }
-}

Game/Graphics/TwoDimensional/Abstract/IDisplayableSprite.cs

@@ -1,20 +0,0 @@
-using System;
-
-using Microsoft.Xna.Framework;
-using Microsoft.Xna.Framework.Graphics;
-
-using Syntriax.Engine.Core.Abstract;
-
-namespace Syntriax.Engine.Graphics.TwoDimensional.Abstract;
-public interface IDisplayableSprite : IDisplayable, IAssignableSprite
-{
-    Action<IDisplayableSprite>? OnSpriteEffectsChanged { get; set; }
-    Action<IDisplayableSprite>? OnOriginChanged { get; set; }
-    Action<IDisplayableSprite>? OnColorChanged { get; set; }
-    Action<IDisplayableSprite>? OnDepthChanged { get; set; }
-
-    SpriteEffects SpriteEffects { get; set; }
-    Vector2 Origin { get; set; }
-    Color Color { get; set; }
-    float Depth { get; set; }
-}

Game/Graphics/TwoDimensional/DisplayableSpriteBehaviour.cs

@@ -1,117 +0,0 @@
-using System;
-
-using Microsoft.Xna.Framework;
-using Microsoft.Xna.Framework.Graphics;
-
-using Syntriax.Engine.Core;
-using Syntriax.Engine.Core.Abstract;
-using Syntriax.Engine.Graphics.TwoDimensional.Abstract;
-
-namespace Syntriax.Engine.Graphics.TwoDimensional;
-
-public class DisplayableSpriteBehaviour : Behaviour, IDisplayableSprite, IAssignableSprite
-{
-    public Action<IAssignableSprite>? OnSpriteAssigned { get; set; } = null;
-    public Action<IDisplayableSprite>? OnSpriteEffectsChanged { get; set; } = null;
-    public Action<IDisplayableSprite>? OnOriginChanged { get; set; } = null;
-    public Action<IDisplayableSprite>? OnColorChanged { get; set; } = null;
-    public Action<IDisplayableSprite>? OnDepthChanged { get; set; } = null;
-
-    private ISprite _sprite = null!;
-    private Color _color = Color.White;
-    private float _depth = 0f;
-    private SpriteEffects _spriteEffects = SpriteEffects.None;
-    private Vector2 _origin = Vector2.One * .5f;
-
-
-    public ISprite Sprite => _sprite;
-
-    public SpriteEffects SpriteEffects
-    {
-        get => _spriteEffects;
-        set
-        {
-            if (_spriteEffects == value)
-                return;
-
-            _spriteEffects = value;
-            OnSpriteEffectsChanged?.Invoke(this);
-        }
-    }
-
-    public Vector2 Origin
-    {
-        get => _origin;
-        set
-        {
-            if (_origin == value)
-                return;
-
-            _origin = value;
-            OnOriginChanged?.Invoke(this);
-        }
-    }
-
-    public Color Color
-    {
-        get => _color;
-        set
-        {
-            if (_color == value)
-                return;
-
-            _color = value;
-            OnColorChanged?.Invoke(this);
-        }
-    }
-
-    public float Depth
-    {
-        get => _depth;
-        set
-        {
-            if (_depth == value)
-                return;
-
-            _depth = value;
-            OnDepthChanged?.Invoke(this);
-        }
-    }
-
-    public void Draw(SpriteBatch spriteBatch)
-    {
-        if (!BehaviourController.GameObject.StateEnable.Enabled || !StateEnable.Enabled)
-            return;
-
-        ITransform transform = BehaviourController.GameObject.Transform;
-        Vector2D position = transform.Position;
-        Vector2D scale = transform.Scale;
-
-        Rectangle rectangle = new((int)position.X, -(int)position.Y, (int)(Sprite.Texture2D.Width * scale.X), (int)(Sprite.Texture2D.Height * scale.Y));
-
-        spriteBatch.Draw(Sprite.Texture2D, rectangle, null, Color, transform.Rotation, new Vector2(Sprite.Texture2D.Width, Sprite.Texture2D.Height) * Origin, SpriteEffects, Depth);
-    }
-
-    public bool Assign(ISprite sprite)
-    {
-        _sprite = sprite;
-        OnSpriteAssigned?.Invoke(this);
-        return true;
-    }
-
-    public DisplayableSpriteBehaviour() => OnUnassigned += OnUnassign;
-    public DisplayableSpriteBehaviour(
-        Color? color = null,
-        float? depth = null,
-        SpriteEffects? spriteEffects = null,
-        Vector2? origin = null)
-    {
-        OnUnassigned += OnUnassign;
-
-        _color = color ?? _color;
-        _depth = depth ?? _depth;
-        _spriteEffects = spriteEffects ?? _spriteEffects;
-        _origin = origin ?? _origin;
-    }
-    private void OnUnassign(IAssignable assignable) => _sprite = null!;
-}

Game/Network/Abstract/INetworkBehaviour.cs

@@ -0,0 +1,18 @@
+using Syntriax.Engine.Core.Abstract;
+
+namespace Syntriax.Engine.Network.Abstract;
+
+public interface INetworkBehaviour : IBehaviour
+{
+    int NetworkId { get; }
+
+    bool LocalAssigned { get; }
+
+    bool IsServer { get; }
+    bool IsClient { get; }
+
+    INetworkCommunicator NetworkCommunicator { get; }
+
+    public void RequestAssignment();
+    public void ReleaseAssignment();
+}

Game/Network/Abstract/INetworkClient.cs

@@ -0,0 +1,6 @@
+namespace Syntriax.Engine.Network.Abstract;
+
+public interface INetworkClient : INetworkCommunicator
+{
+    void Connect(string address, int port, string? password = null);
+}

Game/Network/Abstract/INetworkCommunicator.cs

@@ -0,0 +1,22 @@
+using System;
+
+using LiteNetLib;
+using LiteNetLib.Utils;
+
+using Syntriax.Engine.Core.Abstract;
+
+namespace Syntriax.Engine.Network.Abstract;
+
+public interface INetworkCommunicator
+{
+    EventBasedNetListener Listener { get; }
+    NetManager Manager { get; }
+
+    void PollEvents();
+    void Stop();
+
+    void RegisterEntityListener(IEntity entity, Action<NetPacketReader, NetPeer> onDataReceived);
+    void UnregisterEntityListener(IEntity entity);
+    NetDataWriter GetEntityWriter(IEntity entity);
+    NetDataWriter GetMessageWriter(IEntity entity);
+}

Game/Network/Abstract/INetworkEntity.cs

@@ -0,0 +1,11 @@
+using System;
+
+namespace Syntriax.Engine.Network.Abstract;
+
+internal interface INetworkEntity
+{
+    Action<INetworkEntity, int> OnNetworkIdChanged { get; set; }
+    int NetworkId { get; set; }
+
+    void SetNetworkId(int id);
+}

Game/Network/Abstract/INetworkManager.cs

@@ -0,0 +1,10 @@
+namespace Syntriax.Engine.Network.Abstract;
+
+public interface INetworkManager
+{
+    // Action<IGameObject>? OnNetworkGameObjectInstantiated { get; set; }
+
+    INetworkCommunicator NetworkCommunicator { get; }
+
+    // Task<T> Instantiate<T>(params object?[]? args) where T : class, IGameObject;
+}

Game/Network/Abstract/INetworkServer.cs

@@ -0,0 +1,10 @@
+namespace Syntriax.Engine.Network.Abstract;
+
+public interface INetworkServer : INetworkCommunicator
+{
+    string Password { get; }
+    int MaxConnectionCount { get; }
+    int Port { get; }
+
+    void Start(int port, int maxConnectionCount, string? password = null);
+}

Game/Network/NetworkBase.cs

@@ -0,0 +1,81 @@
+using System;
+using System.Collections.Generic;
+
+using LiteNetLib;
+using LiteNetLib.Utils;
+
+using Syntriax.Engine.Core;
+using Syntriax.Engine.Core.Abstract;
+using Syntriax.Engine.Network.Abstract;
+
+namespace Syntriax.Engine.Network;
+
+public abstract class NetworkBase : BehaviourOverride, INetworkCommunicator
+{
+    public EventBasedNetListener Listener { get; private set; } = null!;
+    public NetManager Manager { get; private set; } = null!;
+
+    public NetworkBase()
+    {
+        Priority = 10;
+
+        Listener = new EventBasedNetListener();
+        Manager = new NetManager(Listener);
+
+        Listener.NetworkReceiveEvent += NetworkReceiveEvent;
+    }
+
+    public void PollEvents() => Manager.PollEvents();
+    public void Stop() => Manager.Stop();
+
+    protected override void OnUpdate() => PollEvents();
+    protected override void OnFinalize() => Stop();
+
+    private readonly Dictionary<string, Action<NetPacketReader, NetPeer>> callbacks = new(32);
+
+    private void NetworkReceiveEvent(NetPeer peer, NetPacketReader reader, byte channel, DeliveryMethod deliveryMethod)
+    {
+        if (callbacks.TryGetValue(reader.GetString(), out var action))
+            action?.Invoke(reader, peer);
+
+        reader.Recycle();
+    }
+
+    public void RegisterEntityListener(IEntity entity, Action<NetPacketReader, NetPeer> onDataReceived)
+    {
+        if (callbacks.ContainsKey(entity.Id))
+            return;
+
+        callbacks.Add(entity.Id, onDataReceived);
+        entity.OnIdChanged += OnEntityIdChanged;
+    }
+
+    public void UnregisterEntityListener(IEntity entity)
+    {
+        if (!callbacks.Remove(entity.Id))
+            return;
+
+        entity.OnIdChanged -= OnEntityIdChanged;
+    }
+
+    public NetDataWriter GetMessageWriter(IEntity entity)
+    {
+        NetDataWriter netDataWriter = GetEntityWriter(entity);
+        netDataWriter.Put((int)MessageType.Message);
+        return netDataWriter;
+    }
+
+    public NetDataWriter GetEntityWriter(IEntity entity)
+    {
+        NetDataWriter netDataWriter = new();
+        netDataWriter.Put(entity.Id);
+        return netDataWriter;
+    }
+
+    private void OnEntityIdChanged(IEntity entity, string previousId)
+    {
+        var action = callbacks[previousId];
+        callbacks.Remove(previousId);
+        callbacks.Add(entity.Id, action);
+    }
+}

Game/Network/NetworkBehaviour.cs

@@ -0,0 +1,99 @@
+using System;
+
+using LiteNetLib;
+
+using Syntriax.Engine.Core;
+using Syntriax.Engine.Network.Abstract;
+
+namespace Syntriax.Engine.Network;
+
+public abstract class NetworkBehaviour : BehaviourOverride, INetworkBehaviour
+{
+    public int NetworkId { get; private set; } = 0;
+
+    public bool LocalAssigned { get; private set; } = false;
+
+    public bool IsServer { get; private set; } = false;
+    public bool IsClient { get; private set; } = false;
+
+    public INetworkCommunicator NetworkCommunicator { get; private set; } = null!;
+
+    protected override void OnInitialize()
+    {
+        NetworkCommunicator = BehaviourController.GetBehaviourInParent<INetworkCommunicator>()
+                              ?? GameObject.GameManager.FindBehaviour<INetworkCommunicator>()
+                              ?? throw new Exception($"Could not find an {nameof(INetworkCommunicator)}.");
+
+        NetworkCommunicator.RegisterEntityListener(this, OnMessageReceivedInternal);
+
+        if (NetworkCommunicator is INetworkClient client)
+        {
+            IsClient = true;
+            return;
+        }
+
+        IsServer = true;
+        LocalAssigned = true;
+    }
+
+    public void ReleaseAssignment()
+    {
+        if (IsServer)
+            return;
+
+        var netDataWriter = NetworkCommunicator.GetEntityWriter(this);
+        netDataWriter.Put((int)MessageType.AssignmentRelease);
+        NetworkCommunicator.Manager.SendToAll(netDataWriter, DeliveryMethod.ReliableOrdered);
+    }
+
+    public void RequestAssignment()
+    {
+        if (IsServer)
+            return;
+
+        var netDataWriter = NetworkCommunicator.GetEntityWriter(this);
+        netDataWriter.Put((int)MessageType.AssignmentRequest);
+        NetworkCommunicator.Manager.SendToAll(netDataWriter, DeliveryMethod.ReliableOrdered);
+    }
+
+    protected abstract void OnMessageReceived(NetPacketReader reader, NetPeer peer);
+    private void OnMessageReceivedInternal(NetPacketReader reader, NetPeer peer)
+    {
+        MessageType messageType = (MessageType)reader.GetInt();
+
+        if (IsServer)
+        {
+            switch (messageType)
+            {
+                case MessageType.Message: OnMessageReceived(reader, peer); break;
+                case MessageType.AssignmentRequest:
+                case MessageType.AssignmentRelease:
+                    var netDataWriter = NetworkCommunicator.GetEntityWriter(this);
+                    netDataWriter.Put((int)(messageType == MessageType.AssignmentRequest ? MessageType.Assigned : MessageType.Unassigned));
+                    peer.Send(netDataWriter, DeliveryMethod.ReliableOrdered);
+                    break;
+                default:
+                    break;
+            }
+            return;
+        }
+
+        switch (messageType)
+        {
+            case MessageType.Message: OnMessageReceived(reader, peer); break;
+            case MessageType.Assigned: LocalAssigned = true; break;
+            case MessageType.Unassigned: LocalAssigned = false; break;
+            default:
+                break;
+        }
+    }
+}
+
+internal enum MessageType
+{
+    Message,
+    AssignmentRequest,
+    AssignmentRelease,
+    Assigned,
+    Unassigned,
+}

Game/Network/NetworkClient.cs

@@ -0,0 +1,12 @@
+using Syntriax.Engine.Network.Abstract;
+
+namespace Syntriax.Engine.Network;
+
+public class NetworkClient : NetworkBase, INetworkClient
+{
+    public void Connect(string address, int port, string? password = null)
+    {
+        Manager.Start();
+        Manager.Connect(address, port, password ?? string.Empty);
+    }
+}

Game/Network/NetworkExtensions.cs

@@ -0,0 +1,20 @@
+using LiteNetLib;
+using LiteNetLib.Utils;
+
+using Syntriax.Engine.Core;
+
+namespace Syntriax.Engine.Network;
+
+public static class NetworkExtensions
+{
+    public static Vector2D GetVector2D(this NetPacketReader reader)
+        => new(reader.GetFloat(), reader.GetFloat());
+    public static void GetVector2D(this NetPacketReader reader, out Vector2D vector2D)
+        => vector2D = new(reader.GetFloat(), reader.GetFloat());
+
+    public static void Put(this NetDataWriter writer, Vector2D vector)
+    {
+        writer.Put(vector.X);
+        writer.Put(vector.Y);
+    }
+}

Game/Network/NetworkManager.cs

@@ -0,0 +1,31 @@
+using LiteNetLib;
+using Syntriax.Engine.Core;
+
+using Syntriax.Engine.Network.Abstract;
+
+namespace Syntriax.Engine.Network;
+
+public class NetworkManager : NetworkBehaviour, INetworkManager
+{
+    private BehaviourCollector<INetworkEntity> entities = null!;
+
+    private static int networkIdIndex = 0;
+
+    protected override void OnInitialize()
+    {
+        base.OnInitialize();
+
+        ((INetworkEntity)this).SetNetworkId(networkIdIndex++);
+
+        entities = new(GameObject.GameManager);
+        foreach (var entity in entities)
+            entity.SetNetworkId(networkIdIndex++);
+
+        entities.OnCollected += OnCollected;
+    }
+
+    private void OnCollected(BehaviourCollector<INetworkEntity> collector, INetworkEntity entity)
+        => entity.SetNetworkId(networkIdIndex++);
+
+    protected override void OnMessageReceived(NetPacketReader reader, NetPeer peer) { }
+}

Game/Network/NetworkServer.cs

@@ -0,0 +1,30 @@
+using Syntriax.Engine.Network.Abstract;
+
+namespace Syntriax.Engine.Network;
+
+public class NetworkServer : NetworkBase, INetworkServer
+{
+    public string Password { get; private set; } = string.Empty;
+    public int MaxConnectionCount { get; private set; } = 0;
+    public int Port { get; private set; } = 8888;
+
+    public NetworkServer() : base()
+    {
+        Listener.ConnectionRequestEvent += request =>
+        {
+            if (Manager.ConnectedPeersCount < MaxConnectionCount)
+                request.AcceptIfKey(Password);
+            else
+                request.Reject();
+        };
+    }
+
+    public void Start(int port, int maxConnectionCount, string? password = null)
+    {
+        Password = password ?? string.Empty;
+        MaxConnectionCount = maxConnectionCount;
+        Port = port;
+
+        Manager.Start(port);
+    }
+}

Game/Program.cs

@@ -1,3 +1,3 @@
 
-using var game = new Pong.Game1();
+using var game = new Pong.GamePong();
 game.Run();