等待预成型 function 不冻结进程

Question

I want to wait 300ms after 2 lines run to run the same 2 lines again, without freezing the thread.

wait(300); and Thread.sleep(300); , along with some loop I found on SO (below) either freeze the thread, exit cleanly(?) or lag the thread by running the function a million times.

I want to wait 300 milliseconds and then run

mc.player.rotationPitch = 90;
mc.playerController.processRightClick(mc.player, mc.world, hand);

without freezing the thread, as sometimes it doesn't time properly if the thread is frozen, and it's annoying for the user if it's going to freeze every time.

I've tried wait, Thread.sleep , TimeUnit.MILLISECONDS.sleep and

                long lastNanoTime = System.nanoTime();
                long nowTime = System.nanoTime();
                while(nowTime/1000000 - lastNanoTime /1000000 < 300 )
                {
                    nowTime = System.nanoTime();
                    System.out.println("KAMI: Tried to pick up bucket");

                } 

I've already shown the relevant examples above. Full code is here

Expected: thread works normally, and my 2 lines, (rotation pitch and right click) run 300 milliseconds after the previous rotation pitch and right click

Actual results: commented in code. Depending on the method used thread either lags, exits or crashes

Answer 1

You will need another thread to do this "without freezing" the current thread. This can be done quite easily, something like:

import java.lang.Thread;

public class Main {

    public static abstract class After extends Thread {

        private int sleep = 0;

        public After(int sleep) {
            this.sleep = sleep;
        }

        public void run() {
            try {
                Thread.sleep(this.sleep);
            } catch(InterruptedException e) {
                //do something with e
            }
            this.after();
        }

        public abstract void after();
    }

    public static void main(String[] args) {
        After after = new After(300) {
            public void after() {
                //mc.player.rotationPitch = 90;
                //mc.playerController.processRightClick(mc.player, mc.world, hand);
                System.out.println("testing");
            }
        };
        after.start(); //this will execute the code in 300 ms

        //do what ever you want to do during the 300ms

        after.join(); //join all threads at the end of your code
        System.out.println("done");
    }
}

Use After when you want to create a delay. Hope this helps!