Upgraded original RothenburgAR to Unity version 2017.4.5f1 (and upgrading from standalone vuforia to the version integrated in unity)

Assets/Vuforia/Scripts/DefaultTrackableEventHandler.cs

@@ -0,0 +1,116 @@
+/*==============================================================================
+Copyright (c) 2017 PTC Inc. All Rights Reserved.
+
+Copyright (c) 2010-2014 Qualcomm Connected Experiences, Inc.
+All Rights Reserved.
+Confidential and Proprietary - Protected under copyright and other laws.
+==============================================================================*/
+
+using UnityEngine;
+using Vuforia;
+
+/// <summary>
+///     A custom handler that implements the ITrackableEventHandler interface.
+/// </summary>
+public class DefaultTrackableEventHandler : MonoBehaviour, ITrackableEventHandler
+{
+    #region PROTECTED_MEMBER_VARIABLES
+
+    protected TrackableBehaviour mTrackableBehaviour;
+
+    #endregion // PROTECTED_MEMBER_VARIABLES
+
+    #region UNITY_MONOBEHAVIOUR_METHODS
+
+    protected virtual void Start()
+    {
+        mTrackableBehaviour = GetComponent<TrackableBehaviour>();
+        if (mTrackableBehaviour)
+            mTrackableBehaviour.RegisterTrackableEventHandler(this);
+    }
+
+    protected virtual void OnDestroy()
+    {
+        if (mTrackableBehaviour)
+            mTrackableBehaviour.UnregisterTrackableEventHandler(this);
+    }
+
+    #endregion // UNITY_MONOBEHAVIOUR_METHODS
+
+    #region PUBLIC_METHODS
+
+    /// <summary>
+    ///     Implementation of the ITrackableEventHandler function called when the
+    ///     tracking state changes.
+    /// </summary>
+    public void OnTrackableStateChanged(
+        TrackableBehaviour.Status previousStatus,
+        TrackableBehaviour.Status newStatus)
+    {
+        if (newStatus == TrackableBehaviour.Status.DETECTED ||
+            newStatus == TrackableBehaviour.Status.TRACKED ||
+            newStatus == TrackableBehaviour.Status.EXTENDED_TRACKED)
+        {
+            Debug.Log("Trackable " + mTrackableBehaviour.TrackableName + " found");
+            OnTrackingFound();
+        }
+        else if (previousStatus == TrackableBehaviour.Status.TRACKED &&
+                 newStatus == TrackableBehaviour.Status.NOT_FOUND)
+        {
+            Debug.Log("Trackable " + mTrackableBehaviour.TrackableName + " lost");
+            OnTrackingLost();
+        }
+        else
+        {
+            // For combo of previousStatus=UNKNOWN + newStatus=UNKNOWN|NOT_FOUND
+            // Vuforia is starting, but tracking has not been lost or found yet
+            // Call OnTrackingLost() to hide the augmentations
+            OnTrackingLost();
+        }
+    }
+
+    #endregion // PUBLIC_METHODS
+
+    #region PROTECTED_METHODS
+
+    protected virtual void OnTrackingFound()
+    {
+        var rendererComponents = GetComponentsInChildren<Renderer>(true);
+        var colliderComponents = GetComponentsInChildren<Collider>(true);
+        var canvasComponents = GetComponentsInChildren<Canvas>(true);
+
+        // Enable rendering:
+        foreach (var component in rendererComponents)
+            component.enabled = true;
+
+        // Enable colliders:
+        foreach (var component in colliderComponents)
+            component.enabled = true;
+
+        // Enable canvas':
+        foreach (var component in canvasComponents)
+            component.enabled = true;
+    }
+
+
+    protected virtual void OnTrackingLost()
+    {
+        var rendererComponents = GetComponentsInChildren<Renderer>(true);
+        var colliderComponents = GetComponentsInChildren<Collider>(true);
+        var canvasComponents = GetComponentsInChildren<Canvas>(true);
+
+        // Disable rendering:
+        foreach (var component in rendererComponents)
+            component.enabled = false;
+
+        // Disable colliders:
+        foreach (var component in colliderComponents)
+            component.enabled = false;
+
+        // Disable canvas':
+        foreach (var component in canvasComponents)
+            component.enabled = false;
+    }
+
+    #endregion // PROTECTED_METHODS
+}