synchronized void stop() {
if (isRunning()) {
ticker.cancel(true); // may interrupt if running
ticker = null;
}
// let any threads waiting on the clock fall through
synchronized (ticks) {
// one should be sufficient but this is to be safe
for (int i = 0; i < 5; i++) {
ticks.notifyAll();
try {
Thread.sleep(10);
} catch (InterruptedException ignored) {
}
}
}
}
private void incrementTicks() {
synchronized (ticks) {
ticks.increment();
ticks.notifyAll();
}
}