private void getControlsUpdate(TelemetryUpdate telemetryUpdate)
{
if (this.InvokeRequired) //if invoke is needed
{
this.Invoke(new RecievedDataHandler(getControlsUpdate), new object[] { telemetryUpdate }); //involkes new instance of getControlsUpdate
}
else
{
lblAltitude.Text = Math.Round(telemetryUpdate.Altitude).ToString() + " ft"; //sets label for the current altitude while rounding it and adding measurement
lblAirspeed.Text = Math.Round(telemetryUpdate.Speed).ToString() + " Knts"; //sets label for the current speed while rounding it and adding measurement
lblVerticalSpeed.Text = Math.Round(telemetryUpdate.VerticalSpeed).ToString() + " Fpm"; //sets label for the current vertical speed while rounding it and adding measurement
lblThrottle.Text = telemetryUpdate.Throttle.ToString() + "%"; ////sets label for the current throttle (from the simulator not reciever)
lblPitchAngle.Text = Math.Round(telemetryUpdate.Pitch).ToString() + "°"; //sets label for the current pitch angle of the plane
lblElevatorPitch.Text = telemetryUpdate.ElevatorPitch.ToString() + "°"; //sets label for the current elevator pitch from the controls (from the simulator not reciever)
lblDateAndTime.Text = DateTime.Now.ToString(); //display updating date and time to the user
DataGridViewRow row = (DataGridViewRow)dgvLiveUpdates.Rows[0].Clone();
row.Cells[0].Value = telemetryUpdate.Speed.ToString(); //Setting cell to value of current speed
row.Cells[1].Value = telemetryUpdate.VerticalSpeed.ToString(); //setting cell to value of current vertical speed
row.Cells[2].Value = "000";
row.Cells[3].Value = telemetryUpdate.Pitch.ToString(); //setting cell to value of the planes current pitch
row.Cells[4].Value = telemetryUpdate.Altitude.ToString(); //setting cell to the value of the current altitude
row.Cells[5].Value = telemetryUpdate.Throttle.ToString(); //setting cell to value of the current throttle control
row.Cells[6].Value = telemetryUpdate.ElevatorPitch.ToString(); //setting cell to value of the current elevator pitch control
row.Cells[7].Value = telemetryUpdate.WarningCode.ToString(); //setting cell to the value of the current warning code
lblCurrentThrottle.Text = telemetryUpdate.Throttle.ToString() + ".0 %"; //setting the label on the throttle control to the current throttle (this is only needed for if controls are changed on the simulator)
lblCurrentElevator.Text = telemetryUpdate.ElevatorPitch.ToString() + "°"; //setting the label on the pitch control to the current throttle (this is only needed for if controls are changed on the simulator)
trkThrottle.Value = Convert.ToInt32(telemetryUpdate.Throttle); //setting the value of throttle control to the current throttle (this is only needed for if controls are changed on the simulator)
trkElevator.Value = Convert.ToInt32(telemetryUpdate.ElevatorPitch * 10); //setting the value of pitch control to the current elevator pitch (this is only needed for if controls are changed on the simulator)
dgvLiveUpdates.Rows.Insert(0, row); //add new row at top of data grid
if (dgvLiveUpdates.Rows.Count > 10) //if datagrid has 10 entries
{
dgvLiveUpdates.Rows.RemoveAt(9); //remove last one
}
if (telemetryUpdate.WarningCode == 1) //if warning code 1 is returned
{
this.lblWarning.ForeColor = System.Drawing.Color.Red; //update text colour to be red indicating a warning
lblWarning.Text = "Warning: Too low terrain"; //apply warning string to label
}
else if (telemetryUpdate.WarningCode == 2) //if warning code 2 is returned
{
this.lblWarning.ForeColor = System.Drawing.Color.Red; //update text colour to be red indicating a warning
lblWarning.Text = "Warning: Stall risk"; //apply warning string to label
}
else//if no warning code is returned
{
this.lblWarning.ForeColor = System.Drawing.Color.Green; //sets colour to be green indicating all is okay
lblWarning.Text = "No warning"; //update text to display "No Warning"
}
}
}
private bool StartRetrieving = false; //create bool to be able to turn the reciever on and off
public void RetriveData() //function to recieve the data from the simulator
{
TelemetryUpdate telemetryUpdate = new TelemetryUpdate(); //new set of telemerty variables
StartRetrieving = true; //when function is called startrecieving is turned on
while (StartRetrieving) //while startRecieving is on
{
byte[] buffer = new byte[256]; //create buffer to write data into
try //try to decode data
{
int num_bytes = stream.Read(buffer, 0, 256); //sets number of bytes recieved to num_bytess setting a minumum and a maximum
string dataToRecieve = Encoding.ASCII.GetString(buffer, 0, num_bytes); //decode data and save to string dataToRecieve
telemetryUpdate = JsonConvert.DeserializeObject <TelemetryUpdate>(dataToRecieve); //convert from json and set to telemerty updates
}
catch { }//if cannot decode data
RecievingEvent?.Invoke(telemetryUpdate);//invoke new telemetry updates
}
}
//
//Adding messege recived from simulator
//
private void addMessage(string message)
{
if (this.InvokeRequired)
{
this.Invoke(new AddMessageDelegate(addMessage), new object[] { message });
}
else
{
//
//Deserialize data
//
JavaScriptSerializer Serializer = new JavaScriptSerializer();
TelemetryUpdate recievedMessage = Serializer.Deserialize <TelemetryUpdate>(message);
//
//Setting up telemetry update struct
//
lblJsonRecivedDisplay.Text = message;
telemetryUpdate.Altitude = recievedMessage.Altitude;
telemetryUpdate.Speed = recievedMessage.Speed;
telemetryUpdate.Pitch = recievedMessage.Pitch;
telemetryUpdate.VerticalSpeed = recievedMessage.VerticalSpeed;
telemetryUpdate.Throttle = recievedMessage.Throttle;
telemetryUpdate.ElevatorPitch = recievedMessage.ElevatorPitch;
telemetryUpdate.WarningCode = recievedMessage.WarningCode;
//
//Updating current information labels with rounding to 2decimal places
// refreshing labels manually as not always been updated before
//
lblAltitudeVal.Text = Math.Round(telemetryUpdate.Altitude, 2).ToString();
lblAltitudeVal.Refresh();
lblSpeedVal.Text = Math.Round(telemetryUpdate.Speed, 2).ToString();
lblSpeedVal.Refresh();
lblPitchVal.Text = Math.Round(telemetryUpdate.Pitch, 2).ToString();
lblPitchVal.Refresh();
lblVerticalSpeedVal.Text = Math.Round(telemetryUpdate.VerticalSpeed, 2).ToString();
lblVerticalSpeedVal.Refresh();
lblThrottleVal.Text = Math.Round(telemetryUpdate.Throttle, 2).ToString();
lblThrottleVal.Refresh();
lblElevatorPitchVal.Text = Math.Round(telemetryUpdate.ElevatorPitch, 2).ToString();
lblElevatorPitchVal.Refresh();
//
//Upadate data grid rounding 4decimal places
//warning code displayed as enum, data is current date and time
//
dgvRecived.Rows.Insert(0, new object[] { Math.Round(telemetryUpdate.Altitude, 4), Math.Round(telemetryUpdate.Speed, 4),
Math.Round(telemetryUpdate.Pitch, 4), Math.Round(telemetryUpdate.VerticalSpeed, 4), Math.Round(telemetryUpdate.Throttle, 4),
Math.Round(telemetryUpdate.ElevatorPitch, 4), telemetryUpdate.WarningCode, DateTime.Now.ToString() });
//
// Updating Warning info label
//
if (telemetryUpdate.WarningCode == WarningCode.TooLow)
{
lblWarningDisplay.Enabled = true;
lblWarningDisplay.Text = "Plane Too Low !";
}
else if (telemetryUpdate.WarningCode == WarningCode.Stall)
{
lblWarningDisplay.Enabled = true;
lblWarningDisplay.Text = "Stall danger !";
}
else
{
lblWarningDisplay.Enabled = false;
lblWarningDisplay.Text = "";
}
//
//Switching off autotakeoff button
//
if (telemetryUpdate.Speed > 40)
{
btnTakeOff.Enabled = false;
}
//
//Enabling autoPilot
//
if (telemetryUpdate.Altitude > 2000 && telemetryUpdate.WarningCode == 0)
{
enableAutoPilot();
}
}
}
