public void setRunning(boolean RUNNING) {
        if (null == running) {
            _running = RUNNING;
            if (RUNNING && !isAnimated()) { scheduleTickTask(); } else { stopTask(periodicTickTask); }
        } else {
            if (!running.isBound()) {
                running.set(RUNNING);
            }
        }
    }
Defines if the clock is running.
The clock will only start running if animated == false;
@param RUNNING
src/main/java/eu/hansolo/tilesfx/Tile.java