/*
/*
RESCUE ROBOTICS WORKSHOP
ReadGPSFromFile

                           Read GPS Data From File
                                 Ron Kessler
                              Created 8/17/2018

Updated: 8/17/2018
				Did final compile/test.


PURPOSE: This project is based on 5-2-3 (ReadFromFile) but shows how to read GPS data.




SETUP: 	Use the companion project called SaveGPS2File to store your readings first.
				As before, we will trap errors to see if everything worked.

				We will start by defining a function to do the reading.
*/


void ReadGPSData()
{
	TFileHandle   fileNumber;								//internal number used to locate the file.
  TFileIOResult IOException;							//tells us if there is an error during the IO
  string        myFileName = "GPStest.txt";	//my file name.
  int           fileSize = 100;						//same as when we saved 2 file
	long longitudeFromFile = 0.0;
  long latitudeFromFile = 0.0;

  OpenRead(fileNumber, IOException, myFileName, fileSize);

  //---Now actually read the line of data and store it in the 'lineFromFile' variable.
  ReadLong(fileNumber, IOException, longitudeFromFile);
  ReadLong(fileNumber, IOException, latitudeFromFile);
  Close(fileNumber, IOException);

  eraseDisplay();
  nxtDisplayCenteredTextLine(1, "Rescue Robotics");
  nxtDisplayCenteredTextLine(2, "GPS Stored Data");
  nxtDisplayTextLine(4, "Lon= %d", longitudeFromFile);
  nxtDisplayTextLine(5, "Lat= %d", latitudeFromFile);

  //---any errors?
  if(IOException == 0)
  	nxtDisplayTextLine(7, "No errors!");
 	else
   	nxtDisplayTextLine(7, "Error while reading....");

}


task main()
{
	ReadGPSData();

	//---keep results on screen for 5 seconds so we can view it
	wait1Msec(5000);


}