private void DidDetectHandStateChange(HandState aFromState, HandState aToState, Point aHandLocation)
{
HandStateChangeEvent handEvent = null;
if (aToState == HandState.Open && aFromState != HandState.Open)
{
handEvent = new HandStateChangeEvent(HandStateChangeType.CloseToOpen, aHandLocation);
}
else if (aToState == HandState.Closed && aFromState != HandState.Closed)
{
handEvent = new HandStateChangeEvent(HandStateChangeType.OpenToClose, aHandLocation);
}
if (handEvent != null)
{
this.NotifyHandStateChangeListenersOfEvent(handEvent);
}
}
private void NotifyHandStateChangeListenersOfEvent(HandStateChangeEvent aEvent)
{
//notify the system listener of an interaction
this._kinectManager.InteractionListener.SystemDidRecieveInteraction();
lock (_handStateListenerLock)
{
foreach (HandStateChangeListener currentListener in this._handStateListeners)
{
bool result = currentListener.KinectHandManagerDidDetectHandStateChange(this, aEvent);
//skip if the event was handled
if (result)
{
break;
}
}
}
if (this.Cursor != null)
{
KinectCursorView.CursorState state = (aEvent.EventType == HandStateChangeType.OpenToClose ? KinectCursorView.CursorState.ClosedHand : KinectCursorView.CursorState.OpenHand);
this.Cursor.SetCursorState(state);
}
}
public void KinectManagerDidGetUpdatedBodyData(KinectManager aManager, SmoothedBody<KalmanSmoother>[] aBodies)
{
SmoothedBody<KalmanSmoother> tracked = aBodies.Where(b => b.TrackingId == this._kinectManager.CurrentlyTrackingId).FirstOrDefault();
if (tracked != null && tracked.TrackingId != 0)
{
Dictionary<JointType, Point> jointPoints = this._kinectManager.HandManager.ConvertJointsToDepthSpace(tracked);
//check if we are already tracking a hand
bool beganTracking = false;
if (this._lastConfirmedHandState == HandState.NotTracked || !HandIsInCorrectPosition(jointPoints, this.TrackingLeftHand))
{
if (this.ChooseHand(jointPoints))
{
beganTracking = true;
_lastConfirmedHandState = HandState.Open;
}
}
//Process hand loc
Point currentHandLoc = ProcessHandLocation(jointPoints);
//if began tracking, send out event
if (beganTracking)
{
HandStateChangeEvent beganTrackingEvent = new HandStateChangeEvent(HandStateChangeType.BeganTracking, currentHandLoc);
this.NotifyHandStateChangeListenersOfEvent(beganTrackingEvent);
}
//Process Hand State
ProcessHandState(tracked, currentHandLoc);
}
else
{
_lastConfirmedHandState = HandState.NotTracked;
_handStateCounter.Reset();
_scaledHandLocationFilter.Set(new Point(this.HandCoordRangeX / 2, this.HandCoordRangeY / 2));
}
}
