koobas.hobune.stream
Time.timeScale = 0 can't stop FixedUpdate()
I set Time.timeScale = 0 in FixedUpdate(). But, FixedUpdate() can't stop immediately. Excuse me, why can't I stop immediately? Thanks for any helpful answers.
This is my code：
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System;
public class Test_TimeScale_5 : MonoBehaviour
{
private int ph_frame = 0;
// Start is called before the first frame update
void Start()
{
}
// Update is called once per frame
void Update()
{
}
void FixedUpdate()
{
ph_frame += 1;
Time.timeScale = 0;
Debug.Log("--FixedUpdate-- [ Time.timeScale=0 ] ----------- frame num: " + ph_frame.ToString());
}
}
Here is log picture: 
When you set Time.timeScale=0; animations stop but scripts continue to run. To stop FixedUpdate running, use static bool value as the script below.
public class Test_TimeScale_5 : MonoBehaviour {
private int ph_frame = 0;
public static bool isPause = false;
private void FixedUpdate()
{
if (isPause)
{
return;
}
ph_frame += 1;
Time.timeScale = 0;
Debug.Log("--FixedUpdate-- [ Time.timeScale=" + Time.timeScale.ToString() + "], frame num: " + ph_frame.ToString());
}
}
And when you want to pause the script from another script, use this code below.
Test_TimeScale_5.isPause = true;
Time.timeScale = 0;
Scripts stop too, fixedupdate and update stop being called the issue is not being stopped at the exact moment, you stop time.timescale
Simply talk about our game: There is only one player in the game, to collide with other gameObjects. For example: Palyer, cube_1, cube_2, cube_3, cube_4... cube_N. When the player click on the pause, I can stop the movement immediately with this script. But other gameObjects, like cube_1, cube_N, they are automatically moved by the physics engine, not by script. And we hope that they can stop accurately and immediately. Because this is a networked game based on frame synchronization. Do you have any suggestions? Thank you.
There must be something else setting time.timescale to something else than 0, i was testing by changing FixedUpdate frequence in case it has to wait for the next update to change the time.scale value but even changing fixedupdate frequence to 1 or to 0.000001(ended up crashing) the time.scale stop was inmidiate, can you please log Time.timeScale value in the fixed update just for making sure is 0?
Thank you for your help, but the problem is still not solved. This is new code. From the log, I think Time.timeScale value is 0 at runtime. But, FixedUpdate() can't stop immediately. We are make a physics game, and we hope to stop FixedUpdate() immediately. Sorry, my English is not fluent.
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System;
public class Test_TimeScale_5 : MonoBehaviour
{
private int ph_frame = 0;
void FixedUpdate()
{
ph_frame += 1;
Time.timeScale = 0;
Debug.Log("--FixedUpdate-- [ Time.timeScale=" + Time.timeScale.ToString()+ "], frame num: " + ph_frame.ToString());
}
}
the easiest way of fixing it would be with an if statement at the beginning of the fixedupdate checking if time.timescale == 0; searching in the web i saw you can use Physics.Simulate for managing the physics yourself that might work.
