public override void populateSensors(int size)
        {
            sensors = new List <ISensor>();

            List <double> sensorAngles = new List <double>();
            double        sensorStart  = -1.3398;
            double        sensorEnd    = 1.3398;
            double        delta        = (sensorEnd - sensorStart) / (size - 1);
            double        x            = sensorStart;

            for (int y = 0; y < size; y++)
            {
                sensorAngles.Add(x);//sensor_angles[y]);
                x += delta;
            }

            foreach (double val in sensorAngles)
            {
                RangeFinder r = new RangeFinder(val, this, actualRange + radius, this.sensorNoise);
                sensors.Add(r);
            }
        }
        //public PackBotModel(int id, double nx, double ny, double dir, 
        //    AgentBrain agentBrain, Environment environment,
        //    float sensorNoise, float effectorNoise, float headingNoise, float timeStep)
        //{
        //    steps = 0;

        //    this.id = id;
        //    updatecounter = 0;
      
        //    path = new List<Point2D>();
        //    location = new Point2D(nx, ny);
        //    circle = new Circle2D(location, radius);
        //    old_location = new Point2D(location);
        //    radius = radius;
        //    heading = dir;
        //    velocity = 0.0;
        //    collide_last = false;
        //    this.timeStep = timeStep;
        //    this.environment = environment;
        //    this.agentBrain = agentBrain;
        //    this.sensorNoise = sensorNoise;
        //    this.effectorNoise = effectorNoise;
        //    this.headingNoise = headingNoise;
        //    populateSensors();
        //}

        //public override void populateSensors()
        //{
        //    populateSensors(defaultSensorDensity());
        //}

        public override void populateSensors(int size)
        {
            sensors = new List<ISensor>();

            List<double> sensorAngles = new List<double>();
            double sensorStart = -1.57;
            double sensorEnd = 1.57;
            double delta = (sensorEnd - sensorStart) / (size - 1);
            double x = sensorStart;

            for (int y = 0; y < size; y++)
            {
                sensorAngles.Add(x);//sensor_angles[y]);
                x += delta;
            }

            foreach (double val in sensorAngles)
            {
                RangeFinder r = new RangeFinder(val, this, 400.0,this.sensorNoise);
                r.set_delta(30, 0.5);
                sensors.Add(r);
            }
        }