void SensorAllFramesReady(object sender, AllFramesReadyEventArgs e)
{
    [...]
    #region SkeletonFrame
    for (int i = 0; i < _frameSkeletons.Length; i++)
        {
                        Skeleton skeleton = _frameSkeletons[i];

                        if (skeleton.TrackingState == SkeletonTrackingState.Tracked)
                        {
                [...]
                /*this part*/
                if (_numberOfSkeletonsT == 1) { _idAp1 = skeleton.TrackingId; }
                                if (_numberOfSkeletonsT == 2 && skeleton.TrackingId != _idAp1) { _idAp2 = skeleton.TrackingId; }
                /*up to here*/
                [...]
            }

            if (skeleton.TrackingState == SkeletonTrackingState.PositionOnly)
                        {
                /*and this one*/
                            if (_numberOfSkeletonsP == 1) { _idPp1 = skeleton.TrackingId; }
                                if (_numberOfSkeletonsP == 2 && skeleton.TrackingId != _idPp1) { _idPp2 = skeleton.TrackingId; }
                                if (_numberOfSkeletonsP == 3 && skeleton.TrackingId != _idPp1 && skeleton.TrackingId != _idPp2) { _idPp3 = skeleton.TrackingId; }
                                if (_numberOfSkeletonsP == 4 && skeleton.TrackingId != _idPp1 && skeleton.TrackingId != _idPp2 && skeleton.TrackingId != _idPp3) {
                            }

                                if (skeleton.TrackingId == _idAp1)
                                {
                                    Sub[2].skeletonData_Spin_X = skeleton.Position.X;
                                    Sub[2].skeletonData_Spin_Y = skeleton.Position.Y;
                                    Sub[2].skeletonData_Spin_Z = skeleton.Position.Z;
                                    Sub[2].angle = (float)Math.Round((Math.Atan((skeleton.Position.X / skeleton.Position.Z)) * (180 / (Math.PI))), 2);
                                    Sub[2].speakingProbability = Math.Abs(Math.Abs(Sub[2].angle - _speaker.speakerAngle) - 57) / 57;
                                    Sub[2].distance = skeleton.Position.Z;
                                    Sub[2].score = ScoreCalculate(Sub[2]);
                                    Sub[2].id = 2;
                                    [...]
                                }
                /*up to here*/
            }
    }
    #endregion
}