fpackf(tfile, "Bf Bf Bf", participantlocation[l].x, participantlocation[l].y, participantlocation[l].z);
fpackf(tfile, "Bf", participantyaw[l]);
}
fpackf(tfile, "Bf Bf Bf", participantlocation[l].x, participantlocation[l].y, participantlocation[l].z);
fpackf(tfile, "Bf", participantyaw[l]);
}