refactor: updated systems to use the update interfaces

Engine.Physics2D/PhysicsEngine2D.cs

@@ -4,13 +4,11 @@ using Syntriax.Engine.Core;
 
 namespace Syntriax.Engine.Physics2D;
 
-public class PhysicsEngine2D : Behaviour, IPhysicsEngine2D
+public class PhysicsEngine2D : Behaviour, IPreUpdate, IPhysicsEngine2D
 {
     public Event<IPhysicsEngine2D, float> OnPhysicsIteration { get; } = new();
     public Event<IPhysicsEngine2D, float> OnPhysicsStep { get; } = new();
 
-    private readonly Event<IUniverse, IUniverse.UpdateArguments>.EventHandler delegateOnPreUpdate = null!;
-
     private float physicsTicker = 0f;
     private int _iterationPerStep = 1;
     private float _iterationPeriod = 1f / 60f;
@@ -191,8 +189,6 @@ public class PhysicsEngine2D : Behaviour, IPhysicsEngine2D
         physicsPostUpdateCollector.Assign(universe);
         colliderCollector.Assign(universe);
         rigidBodyCollector.Assign(universe);
-
-        universe.OnPreUpdate.AddListener(OnEnginePreUpdate);
     }
 
     protected override void OnExitedUniverse(IUniverse universe)
@@ -203,13 +199,11 @@ public class PhysicsEngine2D : Behaviour, IPhysicsEngine2D
         physicsPostUpdateCollector.Unassign();
         colliderCollector.Unassign();
         rigidBodyCollector.Unassign();
-
-        universe.OnPreUpdate.RemoveListener(OnEnginePreUpdate);
     }
 
-    private void OnEnginePreUpdate(IUniverse sender, IUniverse.UpdateArguments args)
+    void IPreUpdate.PreUpdate()
     {
-        physicsTicker += args.EngineTime.DeltaTime;
+        physicsTicker += Universe.Time.DeltaTime;
 
         while (physicsTicker >= IterationPeriod)
         {
@@ -222,15 +216,13 @@ public class PhysicsEngine2D : Behaviour, IPhysicsEngine2D
     {
         collisionDetector = new CollisionDetector2D();
         collisionResolver = new CollisionResolver2D();
-
-        delegateOnPreUpdate = OnEnginePreUpdate;
+        Priority = int.MaxValue;
     }
 
     public PhysicsEngine2D(ICollisionDetector2D collisionDetector, ICollisionResolver2D collisionResolver)
     {
         this.collisionDetector = collisionDetector;
         this.collisionResolver = collisionResolver;
-
-        delegateOnPreUpdate = OnEnginePreUpdate;
+        Priority = int.MaxValue;
     }
 }