chore: updated engine

Shared/Behaviours/MovementBallBehaviour.cs

@@ -0,0 +1,53 @@
+using System;
+
+using Syntriax.Engine.Core;
+using Syntriax.Engine.Physics2D;
+using Syntriax.Engine.Physics2D.Abstract;
+
+namespace Pong.Behaviours;
+
+public class MovementBallBehaviour : Behaviour2D
+{
+    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? foundRigidBody))
+            throw new Exception($"{nameof(IRigidBody2D)} is missing on {HierarchyObject.Name}.");
+        if (!BehaviourController.TryGetBehaviour(out ICollider2D? foundCollider))
+            throw new Exception($"{nameof(ICollider2D)} is missing on {HierarchyObject.Name}.");
+
+        foundRigidBody.Velocity = StartDirection * Speed;
+        foundCollider.OnCollisionDetected += OnCollisionDetected;
+
+        rigidBody = foundRigidBody;
+    }
+
+    protected override void OnUpdate()
+    {
+        if (rigidBody.Velocity.MagnitudeSquared <= 0.01f)
+            return;
+
+        Vector2D speedUp = rigidBody.Velocity.Normalized * GameManager.Time.DeltaTime;
+        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.Detector.Transform.Position.FromTo(information.Detected.Transform.Position).Normalized * rigidBody.Velocity.Magnitude;
+        else
+            rigidBody.Velocity = rigidBody.Velocity.Reflect(information.Normal);
+    }
+
+    public MovementBallBehaviour() { }
+    public MovementBallBehaviour(Vector2D startDirection, float speed)
+    {
+        StartDirection = Vector2D.Normalize(startDirection);
+        Speed = speed;
+    }
+}