OpenNIUserTracker.Update C# (CSharp) Method

    void Update()
    {
        bool foundTooClose = false;
        bool foundCalibrated = false;
        foreach(int userId in allUsers) {
            Vector3 com = GetUserCenterOfMass(userId);
            float distance = -com.z / 1000f;
            if (distance < UserTooCloseDistance) {
                if (!isTooClose) {
                    SendMessage("UserTooClose",SendMessageOptions.DontRequireReceiver);
                    isTooClose = true;
                }
                foundTooClose = true;
                if (calibratedUsers.Contains(userId)) {
                    if (!calibratedUserTooClose) {
                        SendMessage("CalibratedUserTooClose",SendMessageOptions.DontRequireReceiver);
                        calibratedUserTooClose = true;
                    }
                    foundCalibrated = true;
                }
            }
        }

        if (!foundTooClose) {
            if (isTooClose) {
                SendMessage("UserNotTooClose",SendMessageOptions.DontRequireReceiver);
            }
            isTooClose = false;
        }
        if (!foundCalibrated) {
            if (calibratedUserTooClose) {
                SendMessage("CalibratedUserNotTooClose", SendMessageOptions.DontRequireReceiver);
            }
            calibratedUserTooClose = false;
        }
    }