Thread.sleep() / robots.delay() 更准确？

Question

I want to write a bot for a online game using the Robot class. My problem is now, that the method Thread.sleep() or robot.delay() is to inaccurate. Outside the game they work perfectly fine, with a deviation of approximately only 2 - 3 ms. But when the game is in focus, the methods have a deviation of +5 - +20 ms or even more. That is sadly enaugh to make my bot unusable. Is there any way to make these methods more accurate? Or are there any other ways to solve this problem?

Answer 1

There is no difference

If you browse the source for the JDK, Robot.delay() ends up calling Thread.sleep() .

public void delay(int ms) {
    checkDelayArgument(ms);
    Thread thread = Thread.currentThread();
    if (!thread.isInterrupted()) {
        try {
            Thread.sleep(ms);
        } catch (final InterruptedException ignored) {
            thread.interrupt(); // Preserve interrupt status
        }
    }
}

You might be able to give the Java process a higher priority then the game, tasks might be executed more quickly after being given to the scheduler.