/// <summary>
/// Stops dragging the object.
/// </summary>
public void StopDragging()
{
if (IsBeingPlaced == IsBeingPlacedStates.No)
{
return;
}
// Remove self as a modal input handler
InputManager.Instance.PopModalInputHandler();
IsBeingPlaced = IsBeingPlacedStates.No;
currentInputSource = null;
StoppedDragging.RaiseEvent();
if (spatialMappingManager != null)
{
spatialMappingManager.DrawVisualMeshes = false;
}
if (EnablePersistenceInWorldAnchor)
{
// Add world anchor when object placement is done.
anchorManager.AttachAnchor(gameObject, SavedAnchorFriendlyName);
}
}
public void OnSourceLost(SourceStateEventData eventData)
{
// event not used in TapToPlace
if (DraggingMethod == DraggingMethods.TapToPlaceWithGaze)
{
return;
}
if (currentInputSource != null && eventData.SourceId == currentInputSourceId)
{
if (IsBeingPlaced == IsBeingPlacedStates.ByHand)
{
// if hand is lost, replace by gaze
if (DraggingMethod == DraggingMethods.TapToPlaceWithGazePlusPreciseHandDrag)
{
IsBeingPlaced = IsBeingPlacedStates.ByGaze;
}
else
{
StopDragging();
}
}
}
}
/// <summary>
/// Starts dragging the object.
/// </summary>
public void StartDragging(IsBeingPlacedStates isBeingPlacedBy)
{
if (!IsDraggingEnabled)
{
return;
}
// if already dragging with the same method
if (IsBeingPlaced == isBeingPlacedBy)
{
return;
}
// if start dragging
if (IsBeingPlaced == IsBeingPlacedStates.No)
{
// Add self as a modal input handler, to get all inputs during the manipulation
InputManager.Instance.PushModalInputHandler(gameObject);
}
IsBeingPlaced = isBeingPlacedBy;
Vector3 handPosition;
if (DraggingMethod != DraggingMethods.TapToPlaceWithGaze &&
currentInputSource != null &&
currentInputSource.TryGetPosition(currentInputSourceId, out handPosition))
{
Vector3 gazeHitPosition = GazeManager.Instance.HitInfo.point;
Vector3 handPivotPosition = GetHandPivotPosition();
handRefDistance = Vector3.Magnitude(handPosition - handPivotPosition);
objRefDistance = Vector3.Magnitude(gazeHitPosition - handPivotPosition);
Vector3 objForward = ObjectToPlace.transform.forward;
// Store where the object was grabbed from
objRefGrabPoint = mainCamera.transform.InverseTransformDirection(ObjectToPlace.transform.position - gazeHitPosition);
Vector3 objDirection = Vector3.Normalize(gazeHitPosition - handPivotPosition);
Vector3 handDirection = Vector3.Normalize(handPosition - handPivotPosition);
objForward = mainCamera.transform.InverseTransformDirection(objForward); // in camera space
objDirection = mainCamera.transform.InverseTransformDirection(objDirection); // in camera space
handDirection = mainCamera.transform.InverseTransformDirection(handDirection); // in camera space
objRefForward = objForward;
// Store the initial offset between the hand and the object, so that we can consider it when dragging
gazeAngularOffset = Quaternion.FromToRotation(handDirection, objDirection);
draggingPosition = gazeHitPosition;
}
StartedDragging.RaiseEvent();
if (Placement == PlacementOptions.ForceSpatialMapping)
{
if (spatialMappingManager != null)
{
spatialMappingManager.DrawVisualMeshes = DrawVisualMeshes;
}
}
if (EnablePersistenceInWorldAnchor)
{
Debug.Log(gameObject.name + " : Removing existing world anchor if any.");
anchorManager.RemoveAnchor(gameObject);
}
}