Accept pull-request #50

This closes #50,
closes #45,
closes #49,

Author: lawwong

Assets/HTC.UnityPlugin/ViveInputUtility/Examples/3.3DDrag/Scripts/Draggable.cs

@@ -92,6 +92,9 @@ public float hitDistance
     [FormerlySerializedAs("onDrop")]
     [SerializeField]
     private UnityEventDraggable m_onDrop = new UnityEventDraggable(); // change rigidbody drop velocity here
+    [SerializeField]
+    [FormerlySerializedAs("m_scrollDelta")]
+    private float m_scrollingSpeed = 0.01f;
 
     public bool isDragged { get { return isGrabbed; } }
 
@@ -116,6 +119,8 @@ public float hitDistance
     [Obsolete("Use grabRigidbody instead")]
     public Rigidbody rigid { get { return grabRigidbody; } set { grabRigidbody = value; } }
 
+    public float scrollingSpeed { get { return m_scrollingSpeed; } set { m_scrollingSpeed = value; } }
+
     protected override void Awake()
     {
         base.Awake();
@@ -193,7 +198,7 @@ protected virtual void Update()
             OnGrabTransform();
         }
 
-        var scrollDelta = currentGrabber.eventData.scrollDelta * 0.01f;
+        var scrollDelta = currentGrabber.eventData.scrollDelta * m_scrollingSpeed;
         if (scrollDelta != Vector2.zero)
         {
             currentGrabber.hitDistance = Mathf.Max(0f, currentGrabber.hitDistance + scrollDelta.y);

Assets/HTC.UnityPlugin/ViveInputUtility/Scripts/VIUVersion.cs

@@ -6,6 +6,6 @@ namespace HTC.UnityPlugin.Vive
 {
     public static class VIUVersion
     {
-        public static readonly Version current = new Version("1.8.3.2");
+        public static readonly Version current = new Version("1.8.3.3");
     }
 }