Add ultimate xr

Assets/UltimateXR/Runtime/Scripts/Manipulation/UxrGrabbableObjectPreviewMeshProxy.cs

@@ -0,0 +1,95 @@
+// --------------------------------------------------------------------------------------------------------------------
+// <copyright file="UxrGrabbableObjectPreviewMeshProxy.cs" company="VRMADA">
+//   Copyright (c) VRMADA, All rights reserved.
+// </copyright>
+// --------------------------------------------------------------------------------------------------------------------
+using UltimateXR.Core.Components;
+using UnityEngine;
+
+namespace UltimateXR.Manipulation
+{
+    /// <summary>
+    ///     Component used internally by the editor. They are added to keep track of grab pose preview meshes and
+    ///     delete them when the preview is no longer needed.
+    ///     <see cref="UxrGrabbableObjectPreviewMesh" /> components will be hidden hanging from each
+    ///     <see cref="UxrGrabbableObjectSnapTransform" />. They could have the mesh themselves but when dealing with
+    ///     non-uniform scaling in grabbable hierarchies, the preview mesh would be distorted when hanging directly.
+    ///     Instead, each <see cref="UxrGrabbableObjectPreviewMesh" /> component will additionally point to a hidden
+    ///     root GameObject with a <see cref="UxrGrabbableObjectPreviewMeshProxy" /> that will have the mesh data.
+    ///     Being a root GameObject will avoid non-uniform scaling problems.
+    /// </summary>
+    [ExecuteInEditMode]
+    public class UxrGrabbableObjectPreviewMeshProxy : UxrComponent
+    {
+        #region Public Types & Data
+
+        /// <summary>
+        ///     Gets the mesh filter.
+        /// </summary>
+        public MeshFilter MeshFilterComponent => GetCachedComponent<MeshFilter>();
+
+        /// <summary>
+        ///     Gets or sets the preview mesh component that the proxy is following.
+        /// </summary>
+        public UxrGrabbableObjectPreviewMesh PreviewMeshComponent { get; set; }
+
+        /// <summary>
+        ///     Gets or sets the preview mesh object used by the editor (editor type UxrPreviewHandGripMesh).
+        /// </summary>
+        public object PreviewMesh { get; set; }
+
+        #endregion
+
+        #region Unity
+
+        /// <summary>
+        ///     Makes sure to hide the GameObject initially during play mode when working from the editor.
+        /// </summary>
+        protected override void Awake()
+        {
+            if (Application.isPlaying)
+            {
+                base.Awake();
+
+                if (Application.isEditor && Application.isPlaying)
+                {
+                    gameObject.SetActive(false);
+                }
+            }
+        }
+        
+#if UNITY_EDITOR
+
+        /// <summary>
+        ///     Follow the source object and monitors deletion.
+        /// </summary>
+        private void Update()
+        {
+            if (PreviewMeshComponent == null)
+            {
+                if (Application.isPlaying)
+                {
+                    Destroy(gameObject);
+                }
+                else
+                {
+                    DestroyImmediate(gameObject);                    
+                }
+            }
+            else
+            {
+                transform.SetPositionAndRotation(PreviewMeshComponent.transform.position, PreviewMeshComponent.transform.rotation);
+            }
+        }
+
+#endif
+
+        #endregion
+
+        #region Private Types & Data
+
+        private MeshFilter _meshFilterComponent;
+
+        #endregion
+    }
+}