/// <summary>
/// Asynchronous Coroutine which starts the recording
/// </summary>
/// <returns></returns>
private IEnumerator StartRecordingCoroutine()
{
// Start the data log and thereby initialize the file handler for this recording
FileHandler.StartDataLog(ParticipantName, RecordingName);
// Wait for the file to be opened
yield return(new WaitUntil(() => FileHandler.writingData));
// Create recording info
// Note: At this point we transfer the game objects of which we want to log the position into the recording info.
// This means the list stays static during recording which is important for the data file header
CurrentRecording = new RecordingInfo
{
participantName = ParticipantName,
recordingName = RecordingName,
startTime = DateTime.Now,
positionLoggedGameObjectNames = dataProvider.PositionLoggedGameObjectNames
};
// Write information file
JSON.RecordingInfo infoJson = new JSON.RecordingInfo(CurrentRecording);
string infoString = JsonUtility.ToJson(infoJson);
FileHandler.WriteInformation(infoString, true);
// Create the header for the data file
StringBuilder dataFileHeader = new StringBuilder();
// Append the general information
dataFileHeader.Append("eyeDataTimestamp,eyeDataRelativeTimestamp,frameTimestamp,isCalibrationValid,");
dataFileHeader.Append("gazeHasValue,gazeOrigin_x,gazeOrigin_y,gazeOrigin_z,gazeDirection_x,gazeDirection_y,gazeDirection_z,");
dataFileHeader.Append("gazePointHit,gazePoint_x,gazePoint_y,gazePoint_z,gazePoint_target_name,gazePoint_target_x,gazePoint_target_y,gazePoint_target_z,");
dataFileHeader.Append("gazePoint_target_pos_x,gazePoint_target_pos_y,gazePoint_target_pos_z,gazePoint_target_rot_x,gazePoint_target_rot_y,gazePoint_target_rot_z,gazePoint_target_scale_x,gazePoint_target_scale_y,gazePoint_target_scale_z,");
dataFileHeader.Append("gazePointLeftScreen_x,gazePointLeftScreen_y,gazePointLeftScreen_z,gazePointRightScreen_x,gazePointRightScreen_y,gazePointRightScreen_z,gazePointMonoScreen_x,gazePointMonoScreen_y,gazePointMonoScreen_z,");
dataFileHeader.Append("GazePointWebcam_x,GazePointWebcam_y,GazePointWebcam_z,");
dataFileHeader.Append("gazePointAOIHit,gazePointAOI_x,gazePointAOI_y,gazePointAOI_z,gazePointAOI_name,gazePointAOI_target_x,gazePointAOI_target_y,gazePointAOI_target_z,");
dataFileHeader.Append("gazePointAOI_target_pos_x,gazePointAOI_target_pos_y,gazePointAOI_target_pos_z,gazePointAOI_target_rot_x,gazePointAOI_target_rot_y,gazePointAOI_target_rot_z,gazePointAOI_target_scale_x,gazePointAOI_target_scale_y,gazePointAOI_target_scale_z,");
dataFileHeader.Append("GazePointAOIWebcam_x,GazePointAOIWebcam_y,GazePointAOIWebcam_z");
// Append the game object information if we want to log game objects
for (int i = 0; i < CurrentRecording.positionLoggedGameObjectNames.Length; i++)
{
// We start with NA as game object name and replace it with the actual name if the game object (still) exists
string gameObjectName = "NA";
if (CurrentRecording.positionLoggedGameObjectNames[i] != null)
{
gameObjectName = FileHandler.RemoveAllNonAlphanumeric(CurrentRecording.positionLoggedGameObjectNames[i]);
}
dataFileHeader.Append(",GameObject_");
dataFileHeader.Append(gameObjectName);
dataFileHeader.Append("_xPos,GameObject_");
dataFileHeader.Append(gameObjectName);
dataFileHeader.Append("_yPos,GameObject_");
dataFileHeader.Append(gameObjectName);
dataFileHeader.Append("_zPos,GameObject_");
dataFileHeader.Append(gameObjectName);
dataFileHeader.Append("_xRot,GameObject_");
dataFileHeader.Append(gameObjectName);
dataFileHeader.Append("_yRot,GameObject_");
dataFileHeader.Append(gameObjectName);
dataFileHeader.Append("_zRot,GameObject_");
dataFileHeader.Append(gameObjectName);
dataFileHeader.Append("_xScale,GameObject_");
dataFileHeader.Append(gameObjectName);
dataFileHeader.Append("_yScale,GameObject_");
dataFileHeader.Append(gameObjectName);
dataFileHeader.Append("_zScale");
}
// Header for the info column
dataFileHeader.Append(",info");
// Write the header for the data file
FileHandler.WriteData(dataFileHeader.ToString());
// Subscribe to new data event
dataProvider.NewDataEvent += NewDataHandler;
Debug.Log("[EyeTracking DataLogger] Started recording");
}
