Use Enums for the rotation modes instead of bool

Author: cnspaha

Assets/HoloToolkit/Input/Scripts/Interactions/HandDraggable.cs

@@ -31,18 +31,16 @@ public class HandDraggable : MonoBehaviour,
 
         [Tooltip("Scale by which hand movement in z is multipled to move the dragged object.")]
         public float DistanceScale = 2f;
+        
+        public enum RotationModeEnum
+        {
+            Default,
+            LockObjectRotation,
+            OrientTowardUser,
+            KeepUpright
+        }
 
-        [Header("Rotation Handling (only select one!)")]
-        [Tooltip("Should the object be kept upright as it is being dragged?")]
-        public bool IsKeepUpright = false;
-
-        [Tooltip("Should the object be oriented towards the user as it is being dragged?")]
-        public bool IsOrientTowardsUser = true;
-
-        [Tooltip("Should the rotation of the object be locked?")]
-        public bool LockRotation = false;
-
-        [Space(10)]
+        public RotationModeEnum RotationMode = RotationModeEnum.Default;
 
         public bool IsDraggingEnabled = true;
 
@@ -200,16 +198,20 @@ private void UpdateDragging()
 
             draggingPosition = pivotPosition + (targetDirection * targetDistance);
 
-            if (IsOrientTowardsUser)
+            if (RotationMode == RotationModeEnum.OrientTowardUser)
             {
                 draggingRotation = Quaternion.LookRotation(HostTransform.position - pivotPosition);
             }
-            else if (IsKeepUpright)
+            else if (RotationMode == RotationModeEnum.KeepUpright)
             {
                 Quaternion upRotation = Quaternion.FromToRotation(HostTransform.up, Vector3.up);
-                draggingRotation = upRotation * HostTransform.rotation; ;
+                draggingRotation = upRotation * HostTransform.rotation;
+            }
+            else if (RotationMode == RotationModeEnum.LockObjectRotation)
+            {
+                draggingRotation = HostTransform.rotation;
             }
-            else if (!IsRotationLocked)
+            else
             {
                 Vector3 objForward = mainCamera.transform.TransformDirection(objRefForward); // in world space
                 Vector3 objUp = mainCamera.transform.TransformDirection(objRefUp);   // in world space