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Assets/Oculus/Interaction/Runtime/Scripts/Collisions/ClosestPointToColliders.cs

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+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * Licensed under the Oculus SDK License Agreement (the "License");
+ * you may not use the Oculus SDK except in compliance with the License,
+ * which is provided at the time of installation or download, or which
+ * otherwise accompanies this software in either electronic or hard copy form.
+ *
+ * You may obtain a copy of the License at
+ *
+ * https://developer.oculus.com/licenses/oculussdk/
+ *
+ * Unless required by applicable law or agreed to in writing, the Oculus SDK
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+using UnityEngine;
+
+namespace Oculus.Interaction
+{
+    public static partial class Collisions
+    {
+        public static Vector3 ClosestPointToColliders(Vector3 point, Collider[] colliders)
+        {
+            Vector3 closestPoint = point;
+            float closestDistance = float.MaxValue;
+            foreach (Collider collider in colliders)
+            {
+                if (Collisions.IsPointWithinCollider(point, collider))
+                {
+                    return point;
+                }
+
+                Vector3 closest = collider.ClosestPoint(point);
+                float distance = (closest - point).magnitude;
+                if (distance < closestDistance)
+                {
+                    closestDistance = distance;
+                    closestPoint = closest;
+                }
+            }
+
+            return closestPoint;
+        }
+    }
+}

Assets/Oculus/Interaction/Runtime/Scripts/Collisions/ClosestPointToColliders.cs.meta

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Assets/Oculus/Interaction/Runtime/Scripts/Collisions/ColliderGroup.cs

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+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * Licensed under the Oculus SDK License Agreement (the "License");
+ * you may not use the Oculus SDK except in compliance with the License,
+ * which is provided at the time of installation or download, or which
+ * otherwise accompanies this software in either electronic or hard copy form.
+ *
+ * You may obtain a copy of the License at
+ *
+ * https://developer.oculus.com/licenses/oculussdk/
+ *
+ * Unless required by applicable law or agreed to in writing, the Oculus SDK
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace Oculus.Interaction
+{
+    public class ColliderGroup
+    {
+        private Collider _boundsCollider;
+        private List<Collider> _colliders;
+
+        public Collider Bounds => _boundsCollider;
+        public List<Collider> Colliders => _colliders;
+
+        public ColliderGroup(List<Collider> colliders, Collider boundsCollider)
+        {
+            _colliders = colliders;
+            _boundsCollider = boundsCollider;
+        }
+    }
+}

Assets/Oculus/Interaction/Runtime/Scripts/Collisions/ColliderGroup.cs.meta

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Assets/Oculus/Interaction/Runtime/Scripts/Collisions/IsCapsuleWithinColliderApprox.cs

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+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * Licensed under the Oculus SDK License Agreement (the "License");
+ * you may not use the Oculus SDK except in compliance with the License,
+ * which is provided at the time of installation or download, or which
+ * otherwise accompanies this software in either electronic or hard copy form.
+ *
+ * You may obtain a copy of the License at
+ *
+ * https://developer.oculus.com/licenses/oculussdk/
+ *
+ * Unless required by applicable law or agreed to in writing, the Oculus SDK
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+using UnityEngine;
+
+namespace Oculus.Interaction
+{
+    public static partial class Collisions
+    {
+        /// <summary>
+        /// Approximate capsule collision by doing sphere collisions down the capsule length
+        /// </summary>
+        /// <param name="p0">Capsule Start</param>
+        /// <param name="p1">Capsule End</param>
+        /// <param name="radius">Capsule Radius</param>
+        /// <param name="collider">Collider to check against</param>
+        /// <returns>Whether or not an approximate collision occured.</returns>
+        public static bool IsCapsuleWithinColliderApprox(Vector3 p0, Vector3 p1, float radius, Collider collider)
+        {
+            int divisions = Mathf.CeilToInt((p1 - p0).magnitude / radius) * 2;
+
+            if (divisions == 0)
+            {
+                return IsSphereWithinCollider(p0, radius, collider);
+            }
+
+            float tStep = 1f / divisions;
+            for (int i = 0; i <= divisions; i++)
+            {
+                Vector3 point = Vector3.Lerp(p0, p1, tStep * i);
+                if (IsSphereWithinCollider(point, radius, collider))
+                {
+                    return true;
+                }
+            }
+
+            return false;
+        }
+    }
+}

Assets/Oculus/Interaction/Runtime/Scripts/Collisions/IsCapsuleWithinColliderApprox.cs.meta

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Assets/Oculus/Interaction/Runtime/Scripts/Collisions/IsPointWithinCollider.cs

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+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * Licensed under the Oculus SDK License Agreement (the "License");
+ * you may not use the Oculus SDK except in compliance with the License,
+ * which is provided at the time of installation or download, or which
+ * otherwise accompanies this software in either electronic or hard copy form.
+ *
+ * You may obtain a copy of the License at
+ *
+ * https://developer.oculus.com/licenses/oculussdk/
+ *
+ * Unless required by applicable law or agreed to in writing, the Oculus SDK
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+using UnityEngine;
+
+namespace Oculus.Interaction
+{
+    public static partial class Collisions
+    {
+        public static bool IsPointWithinCollider(Vector3 point, Collider collider)
+        {
+            if (!collider.bounds.Contains(point))
+            {
+                return false;
+            }
+
+            Vector3 closestPoint = collider.ClosestPoint(point);
+            if (collider is MeshCollider)
+            {
+                return (closestPoint - point).sqrMagnitude < collider.contactOffset * collider.contactOffset;
+            }
+            return closestPoint.Equals(point);
+        }
+    }
+}

Assets/Oculus/Interaction/Runtime/Scripts/Collisions/IsPointWithinCollider.cs.meta

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Assets/Oculus/Interaction/Runtime/Scripts/Collisions/IsSphereWithinCollider.cs

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+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * Licensed under the Oculus SDK License Agreement (the "License");
+ * you may not use the Oculus SDK except in compliance with the License,
+ * which is provided at the time of installation or download, or which
+ * otherwise accompanies this software in either electronic or hard copy form.
+ *
+ * You may obtain a copy of the License at
+ *
+ * https://developer.oculus.com/licenses/oculussdk/
+ *
+ * Unless required by applicable law or agreed to in writing, the Oculus SDK
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+using UnityEngine;
+
+namespace Oculus.Interaction
+{
+    public static partial class Collisions
+    {
+        public static bool IsSphereWithinCollider(Vector3 point, float radius, Collider collider)
+        {
+            Vector3 boundsPoint = collider.bounds.ClosestPoint(point);
+            if (Vector3.SqrMagnitude(boundsPoint - point) > radius * radius)
+            {
+                return false;
+            }
+
+            Vector3 closestPoint = collider.ClosestPoint(point);
+            return Vector3.SqrMagnitude(closestPoint - point) <= radius * radius;
+        }
+    }
+}

Assets/Oculus/Interaction/Runtime/Scripts/Collisions/IsSphereWithinCollider.cs.meta

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