Recognize two skeletons Kinect

Question

I have make a game (pong) using a kinect, I can recognize one skeleton and I can make gestures to control the left stick, but when I try to play with two players don´t recognize the skeleton of other player. This is what I do so far:

private void SensorSkeletonFrameReady(object sender, SkeletonFrameReadyEventArgs e)
        {
            Skeleton[] skeletons = new Skeleton[0];

            using (SkeletonFrame skeletonFrame = e.OpenSkeletonFrame())
            {
                if (skeletonFrame != null)
                {
                    skeletons = new Skeleton[skeletonFrame.SkeletonArrayLength];
                    skeletonFrame.CopySkeletonDataTo(skeletons);
                }
                if (skeletons.Length != 0)
                {
                    foreach (Skeleton skel in skeletons)
                    {
                        if (skel.TrackingState == SkeletonTrackingState.Tracked)
                        {
                            this.tracked(skel);
                            this.trackedLeft(skel);
                        }
                    }
                }
            }
        }

        public void tracked(Skeleton skeleton)
        {
            Joint jHandRight = skeleton.Joints[JointType.HandRight];
            Joint jHipCenter = skeleton.Joints[JointType.HipCenter];
            if ((jHipCenter.Position.Z - jHandRight.Position.Z) > 0.2)
            {
                //Consider hand raised in front of them
                //System.Diagnostics.Debug.WriteLine("Hand: Raised");
                //MessageBox.Show("POR FAVORRRRRRRR");
                //movement[0] = false;
                movement[0] = true;
                movement[1] = false;
            }
            else
            {
                //Hand is lowered by the users side
                //System.Diagnostics.Debug.WriteLine("Hand: Lowered");
                //MessageBox.Show("A SERRRRIIIIIOOOOOOOOOOOOOO");
                //movement[1] = false;
                movement[1] = true;
                movement[0] = false;
            }
        }

Someone could help me.

Answer 1

You need a way to distinguish between skeleton one and two. See Kinect user Detection for how to do this. You can then pass the skeleton for player one and two to your two different methods. I use the player ID because if a skeleton is lost for a frame or two, their ID remains the same

int id1 = 0, id2 = 0;

... 

if (skeletons.Length != 0)
{
    foreach (Skeleton skel in skeletons)
    {
         if (skel.TrackingState == SkeletonTrackingState.Tracked)
         {
                if (skel.TrackingID == id1)
                    this.tracked(skel);
                else if (skel.TrackingID == id2)
                    this.trackedLeft(skel);
                else
                {
                     if (id1 != 0 && id2 == 0)
                         id2 = skel.TrackingID;
                     else if (id2 != 0 && id1 == 0)
                         id1 = skel.TrackingID;
                }
         }
     }
  }