public synchronized void updateOneStep() {
if (initFlag) {
loc.update();
int[] tXY = loc.getCurrentTruePosition();
int[] sXY = loc.getCurrentReading();
if (sXY != null) updateViewer(tXY[0], tXY[1], sXY[0], sXY[1]);
else updateViewer(tXY[0], tXY[1], -1, -1);
}
}
public synchronized void initLocViewer() {
int[] start = loc.getCurrentTruePosition();
updateViewer(start[0], start[1], -1, -1);
initFlag = true;
if (initFlag) {
System.out.println("The viewer was already initialized, no changes");
}
}
