Refactor how colliders are processed in interactor.preproces step

Author: ahmed-shariff

Runtime/Interaction/HPUIInteractor.cs

@@ -64,8 +64,8 @@ public class HPUIInteractor: XRBaseInteractor, IHPUIInteractor
         private bool justStarted = false;
         private Vector3 lastInteractionPoint;
         private PhysicsScene physicsScene;
-        private RaycastHit[] sphereCastHits = new RaycastHit[25];
-        private Collider[] overlapSphereHits = new Collider[25];
+        private RaycastHit[] sphereCastHits = new RaycastHit[200];
+        private Collider[] overlapSphereHits = new Collider[200];
 
         /// <inheritdoc />
         protected override void Awake()
@@ -130,6 +130,7 @@ public override void PreprocessInteractor(XRInteractionUpdateOrder.UpdatePhase u
                 // If no movement is recorded.
                 // Check if spherecast size is sufficient for proper cast, or if first frame since last frame poke position will be invalid.
                 int numberOfOverlaps;
+                List<Collider> colliders;
 
                 if (justStarted || overlapSqrMagnitude < 0.001f)
                 {
@@ -141,6 +142,7 @@ public override void PreprocessInteractor(XRInteractionUpdateOrder.UpdatePhase u
                         Physics.AllLayers,
                         // FIXME: QueryTriggerInteraction should be allowed to be set in inpsector
                         QueryTriggerInteraction.Ignore);
+                    colliders = overlapSphereHits.ToList();
                 }
                 else
                 {
@@ -154,17 +156,17 @@ public override void PreprocessInteractor(XRInteractionUpdateOrder.UpdatePhase u
                         Physics.AllLayers,
                         // FIXME: QueryTriggerInteraction should be allowed to be set in inpsector
                         QueryTriggerInteraction.Ignore);
-
+                    colliders = sphereCastHits.Select(s => s.collider).ToList();
                 }
 
                 lastInteractionPoint = pokeInteractionPoint;
                 justStarted = false;
 
                 for (var i = 0; i < numberOfOverlaps; ++i)
                 {
-                    if (interactionManager.TryGetInteractableForCollider(sphereCastHits[i].collider, out var interactable) &&
-                        interactable is IXRSelectInteractable selectable &&
-                        interactable is IXRHoverInteractable hoverable && hoverable.IsHoverableBy(this))
+                    if (interactionManager.TryGetInteractableForCollider(colliders[i], out var interactable) &&
+                        !validTargets.Contains(interactable) &&
+                        interactable is IHPUIInteractable hpuiInteractable && hpuiInteractable.IsHoverableBy(this))
                     {
                         validTargets.Add(interactable);
                     }

Runtime/Interaction/IHPUIInteractable.cs

@@ -3,7 +3,7 @@
 
 namespace ubco.ovilab.HPUI.Interaction 
 {
-    public interface IHPUIInteractable : IXRInteractable, IXRSelectInteractable
+    public interface IHPUIInteractable : IXRSelectInteractable, IXRHoverInteractable
     {
         /// <summary>
         /// Lower z order will get higher priority.

Tests/HPUIGestureLogicUnifiedTest.cs

@@ -425,6 +425,18 @@ void IHPUIInteractable.OnTap(HPUITapEventArgs args)
 
             Transform IXRInteractable.transform => throw new NotImplementedException();
 
+            HoverEnterEvent IXRHoverInteractable.firstHoverEntered => throw new NotImplementedException();
+
+            HoverExitEvent IXRHoverInteractable.lastHoverExited => throw new NotImplementedException();
+
+            HoverEnterEvent IXRHoverInteractable.hoverEntered => throw new NotImplementedException();
+
+            HoverExitEvent IXRHoverInteractable.hoverExited => throw new NotImplementedException();
+
+            List<IXRHoverInteractor> IXRHoverInteractable.interactorsHovering => throw new NotImplementedException();
+
+            bool IXRHoverInteractable.isHovered => throw new NotImplementedException();
+
             event Action<InteractableRegisteredEventArgs> IXRInteractable.registered
             {
                 add
@@ -509,6 +521,31 @@ void IXRInteractable.ProcessInteractable(XRInteractionUpdateOrder.UpdatePhase up
             {
                 throw new NotImplementedException();
             }
+
+            bool IXRHoverInteractable.IsHoverableBy(IXRHoverInteractor interactor)
+            {
+                throw new NotImplementedException();
+            }
+
+            void IXRHoverInteractable.OnHoverEntering(HoverEnterEventArgs args)
+            {
+                throw new NotImplementedException();
+            }
+
+            void IXRHoverInteractable.OnHoverEntered(HoverEnterEventArgs args)
+            {
+                throw new NotImplementedException();
+            }
+
+            void IXRHoverInteractable.OnHoverExiting(HoverExitEventArgs args)
+            {
+                throw new NotImplementedException();
+            }
+
+            void IXRHoverInteractable.OnHoverExited(HoverExitEventArgs args)
+            {
+                throw new NotImplementedException();
+            }
             #endregion
         }
     }