@Override
public synchronized void updateTuioCursor(TuioCursor cursor) {
TuioCursor tr = null;
for (TuioCursor t : currentTouchState) if (t.getSessionID() == cursor.getSessionID()) tr = t;
currentTouchState.remove(tr);
currentTouchState.add(cursor);
}
public synchronized TuioCursor getTuioCursor(long s_id) {
for (TuioCursor t : currentTouchState) if (t.getSessionID() == s_id) return t;
return null;
}