Create InterfaceGameObject as the script component for game objects.

Author: rpavlik

…VRUnity/Prefabs/InterfaceCallback.prefab …Unity/Prefabs/InterfaceGameObject.prefabOSVR-Unity/Assets/OSVRUnity/Prefabs/InterfaceCallback.prefab renamed to OSVR-Unity/Assets/OSVRUnity/Prefabs/InterfaceGameObject.prefab OSVR-Unity/Assets/OSVRUnity/Prefabs/InterfaceCallback.prefab renamed to OSVR-Unity/Assets/OSVRUnity/Prefabs/InterfaceGameObject.prefab

@@ -10,7 +10,7 @@ GameObject:
   - 4: {fileID: 412524}
   - 114: {fileID: 11412524}
   m_Layer: 0
-  m_Name: InterfaceCallback
+  m_Name: InterfaceGameObject
   m_TagString: Untagged
   m_Icon: {fileID: 0}
   m_NavMeshLayer: 0
@@ -23,8 +23,8 @@ Transform:
   m_PrefabInternal: {fileID: 100100000}
   m_GameObject: {fileID: 112524}
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
-  m_LocalPosition: {x: -.100000001, y: 0, z: 0}
-  m_LocalScale: {x: .100000001, y: .100000001, z: .100000001}
+  m_LocalPosition: {x: 0, y: 0, z: 0}
+  m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 0}
   m_RootOrder: 0
@@ -36,7 +36,7 @@ MonoBehaviour:
   m_GameObject: {fileID: 112524}
   m_Enabled: 1
   m_EditorHideFlags: 0
-  m_Script: {fileID: 11500000, guid: 07e9520e0cc30554c9e6c2985af8c48f, type: 3}
+  m_Script: {fileID: 11500000, guid: 2dbe481ddb829b04a8f8f4fa85065051, type: 3}
   m_Name: 
   m_EditorClassIdentifier: 
   path: 

…ty/Prefabs/InterfaceCallback.prefab.meta …/Prefabs/InterfaceGameObject.prefab.metaOSVR-Unity/Assets/OSVRUnity/Prefabs/InterfaceCallback.prefab.meta renamed to OSVR-Unity/Assets/OSVRUnity/Prefabs/InterfaceGameObject.prefab.meta OSVR-Unity/Assets/OSVRUnity/Prefabs/InterfaceCallback.prefab.meta renamed to OSVR-Unity/Assets/OSVRUnity/Prefabs/InterfaceGameObject.prefab.meta

@@ -0,0 +1,29 @@
+/* OSVR-Unity Connection
+ * 
+ * <http://sensics.com/osvr>
+ * Copyright 2014 Sensics, Inc.
+ * All rights reserved.
+ * 
+ * Final version intended to be licensed under Apache v2.0
+ */
+
+using UnityEngine;
+
+namespace OSVR
+{
+    namespace Unity
+    {
+        public class GetParent
+        {
+            public static GameObject Get(GameObject go)
+            {
+                if (null == go || null == go.transform || null == go.transform.parent)
+                {
+                    return null;
+                }
+                Transform parent = go.transform.parent;
+                return parent.gameObject;
+            }
+        }
+    }
+}

OSVR-Unity/Assets/OSVRUnity/src/GetParent.cs

@@ -16,7 +16,7 @@ namespace Unity
         /// <summary>
         /// OSVR Interface, supporting generic callbacks that provide the source path and a Unity-native datatype.
         /// </summary>
-        public class InterfaceCallbacks : MonoBehaviour
+        public class InterfaceCallbacks : ScriptableObject
         {
             /// <summary>
             /// The interface path you want to connect to.

OSVR-Unity/Assets/OSVRUnity/src/GetParent.cs.meta

@@ -0,0 +1,159 @@
+/* OSVR-Unity Connection
+ * 
+ * <http://sensics.com/osvr>
+ * Copyright 2014 Sensics, Inc.
+ * All rights reserved.
+ * 
+ * Final version intended to be licensed under Apache v2.0
+ */
+
+using UnityEngine;
+using System.Collections;
+
+namespace OSVR
+{
+    namespace Unity
+    {
+        
+        /// <summary>
+        /// A script component to add to a GameObject in order to access an interface, managing lifetime and centralizing the path specification.
+        /// </summary>
+        public class InterfaceGameObject : MonoBehaviour
+        {
+            /// <summary>
+            /// The interface path you want to connect to.
+            /// </summary>
+            [Tooltip("The interface path you want to access. If left blank, the path of the nearest ancestor with a path will be used.")]
+            public string path;
+
+
+            public InterfaceCallbacks osvrInterface
+            {
+                get
+                {
+                    Start();
+                    return iface;
+                }
+            }
+
+            protected InterfaceGameObject interfaceGameObject
+            {
+                get
+                {
+                    return this;
+                }
+            }
+
+            #region Private implementation
+            private InterfaceCallbacks iface;
+
+            private class PathHolder : MonoBehaviour
+            {
+                [HideInInspector]
+                public string path;
+
+                PathHolder()
+                {
+                    hideFlags = HideFlags.HideAndDontSave;
+                }
+            }
+            #endregion
+
+            #region Methods for Derived Classes
+            /// <summary>
+            /// Call from your Awake method to advertise the presence or absence of a path specification on this game object.
+            /// </summary>
+            protected void AdvertisePath()
+            {
+                if (null != iface)
+                {
+                    /// Already started.
+                    return;
+                }
+                
+                PathHolder holder = GetComponent<PathHolder>();
+                if (path.Length > 0) {
+                    /// If we have a path, be sure we advertise it.
+                    if (null == holder) {
+                        holder = gameObject.AddComponent<PathHolder>();
+                    }
+                    holder.path = path;
+                } else {
+                    /// Don't advertise a path that is empty
+                    if (null != holder) {
+                        Object.Destroy(holder);
+                    }
+                }
+            }
+
+            /// <summary>
+            /// Call from your Start method
+            /// </summary>
+            protected void Start()
+            {
+                if (null != iface)
+                {
+                    return;
+                }
+                AdvertisePath();
+                GameObject go = this.gameObject;
+                PathHolder holder = null;
+                string usedPath = path;
+                while (null != go && 0 == usedPath.Length)
+                {
+                    holder = go.GetComponent<PathHolder>();
+                    if (null != holder)
+                    {
+                        usedPath = holder.path;
+                        //print("[OSVR] " + name + ": Found path " + usedPath + " in ancestor " + go.name);
+                    }
+                    go = GetParent.Get(go);
+                }
+
+                if (0 == usedPath.Length)
+                {
+                    Debug.LogError("[OSVR] Missing path for " + name + " - no path found in this object's InterfaceGameObject or any ancestor!");
+                    return;
+                }
+
+                iface = ScriptableObject.CreateInstance<InterfaceCallbacks>();
+                iface.path = usedPath;
+                iface.Start();
+            }
+
+            protected void Stop()
+            {
+                if (null != iface)
+                {
+                    Object.Destroy(iface);
+                    iface = null;
+                }
+                PathHolder holder = GetComponent<PathHolder>();
+                if (null != holder)
+                {
+                    Object.Destroy(holder);
+                }
+            }
+            #endregion
+
+            #region Event Methods
+            void Awake()
+            {
+                AdvertisePath();
+            }
+
+            void OnDestroy()
+            {
+                Stop();
+            }
+
+            void OnApplicationQuit()
+            {
+                Stop();
+            }
+
+            #endregion
+
+        }
+    }
+}