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Assets/Oculus/Interaction/Samples/Scripts/PoseUseSample.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 Oculus.Interaction.Input;
+using TMPro;
+using UnityEngine;
+using UnityEngine.Assertions;
+
+namespace Oculus.Interaction.Samples
+{
+    public class PoseUseSample : MonoBehaviour
+    {
+        [SerializeField, Interface(typeof(IHmd))]
+        private UnityEngine.Object _hmd;
+        private IHmd Hmd { get; set; }
+
+        [SerializeField]
+        private ActiveStateSelector[] _poses;
+
+        [SerializeField]
+        private Material[] _onSelectIcons;
+
+        [SerializeField]
+        private GameObject _poseActiveVisualPrefab;
+
+        private GameObject[] _poseActiveVisuals;
+
+        protected virtual void Awake()
+        {
+            Hmd = _hmd as IHmd;
+        }
+
+        protected virtual void Start()
+        {
+            this.AssertField(Hmd, nameof(Hmd));
+            this.AssertField(_poseActiveVisualPrefab, nameof(_poseActiveVisualPrefab));
+
+            _poseActiveVisuals = new GameObject[_poses.Length];
+            for (int i = 0; i < _poses.Length; i++)
+            {
+                _poseActiveVisuals[i] = Instantiate(_poseActiveVisualPrefab);
+                _poseActiveVisuals[i].GetComponentInChildren<TextMeshPro>().text = _poses[i].name;
+                _poseActiveVisuals[i].GetComponentInChildren<ParticleSystemRenderer>().material = _onSelectIcons[i];
+                _poseActiveVisuals[i].SetActive(false);
+
+                int poseNumber = i;
+                _poses[i].WhenSelected += () => ShowVisuals(poseNumber);
+                _poses[i].WhenUnselected += () => HideVisuals(poseNumber);
+            }
+        }
+        private void ShowVisuals(int poseNumber)
+        {
+            if (!Hmd.TryGetRootPose(out Pose hmdPose))
+            {
+                return;
+            }
+
+            Vector3 spawnSpot = hmdPose.position + hmdPose.forward;
+            _poseActiveVisuals[poseNumber].transform.position = spawnSpot;
+            _poseActiveVisuals[poseNumber].transform.LookAt(2 * _poseActiveVisuals[poseNumber].transform.position - hmdPose.position);
+
+            var hands = _poses[poseNumber].GetComponents<HandRef>();
+            Vector3 visualsPos = Vector3.zero;
+            foreach (var hand in hands)
+            {
+                hand.GetRootPose(out Pose wristPose);
+                Vector3 forward = hand.Handedness == Handedness.Left ? wristPose.right : -wristPose.right;
+                visualsPos += wristPose.position + forward * .15f + Vector3.up * .02f;
+            }
+            _poseActiveVisuals[poseNumber].transform.position = visualsPos / hands.Length;
+            _poseActiveVisuals[poseNumber].gameObject.SetActive(true);
+        }
+
+        private void HideVisuals(int poseNumber)
+        {
+            _poseActiveVisuals[poseNumber].gameObject.SetActive(false);
+        }
+    }
+}