/// <summary>
/// Called when BodyCapture detects a new body.
/// </summary>
/// <param name="id">Unique ID of the body.</param>
private void Body_OnDetected(ulong id)
{
Log.Information($"Body detected, creating body & joint elements (Body={id}).");
// Register the slot, but don't populate until elements are created on the network.
_bodyElements[id] = null;
var bodyElements = Util.CreateBodyElements($"Body {id}", _assetMap);
_network
.Create(_kinectElement.Id, bodyElements.RootElement)
.ContinueWith(task =>
{
var rootElement = task.Result;
Log.Information($"Created body root element (Body={id} Element={rootElement.Id}).");
// Double check the body didn't disappear during the network op
if (!_bodyElements.ContainsKey(id))
{
Log.Information($"Matching body already gone. Destroying (Body={id} Element={rootElement.Id}).");
_network.Destroy(rootElement.Id);
return;
}
_bodyElements[id] = bodyElements;
});
}
/// <summary>
/// Called when the Kinect SDK changes its device availability.
/// </summary>
/// <param name="sender"></param>
/// <param name="args"></param>
private void SensorOnIsAvailableChanged(object sender, IsAvailableChangedEventArgs args)
{
_bodyCapture?.Stop();
if (args.IsAvailable)
{
Log.Information($"Kinect available ({_sensor.UniqueKinectId})");
_kinectElement = FindKinect(_sensor.UniqueKinectId, _elements);
if (_kinectElement == null)
{
Log.Warning("No Kinect element found in scene.");
return;
}
Log.Information($"Kinect element found ({_kinectElement})");
_assetMap = BuildTracking(_kinectElement);
_trackList = _assetMap.Keys.Select(j => j).ToArray();
if (_trackList.Length == 0)
{
Log.Warning("No tracking desired?");
return;
}
Log.Information($"Tracking {_trackList.Length} joints " +
$"({string.Join(", ", _trackList.Select(j => j.ToString()))})");
_bodyCapture = new BodyCapture(_sensor, _trackList);
_bodyCapture.OnBodyDetected += Body_OnDetected;
_bodyCapture.OnBodyUpdated += Body_OnUpdated;
_bodyCapture.OnBodyLost += Body_OnLost;
_bodyCapture.Start();
_active = true;
}
else if (_active)
{
Log.Information("Lost connection to Kinect.");
_kinectElement = null;
// TODO: Reset lookup tables
foreach (var bodyElements in _bodyElements.Values)
{
if (bodyElements != null)
{
_network.Destroy(bodyElements.RootElement.Id);
}
}
_bodyElements.Clear();
_active = false;
}
}