void FixedUpdate()
{
// get sensor data
foreach (KeyValuePair <string, GetSensorValISensor> sensor in sensors)
{
sensorData[sensor.Key] = sensor.Value();
}
// send sensor data
string sensorDataJson = JsonConvert.SerializeObject(sensorData);
controller.PutSensorData(sensorDataJson);
Debug.Log(sensorDataJson);
// get control data and apply
string controlsJson = controller.GetControlData();
// Debug.Log(controlsJson);
Dictionary <string, float> controlsDict =
JsonConvert.DeserializeObject <Dictionary <string, float> >(controlsJson);
wheelColliders[0].motorTorque = controlsDict["leftTorque"];
ApplyLocalPositionToVisuals(wheelColliders[0]);
wheelColliders[1].motorTorque = controlsDict["rightTorque"];
ApplyLocalPositionToVisuals(wheelColliders[1]);
}