NavMesh Agent pause?

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Hello there I was wondering what would be the best aproch to pause a navmesh agents movent towards a target.

this is what im using, I am animating a from and would like it to hop from one area to another on its own. I have it going there with a hop animation, but its linial movement, so even when stopped (animation), the object is moving and looks bad of course.

I am using this code:

 GetComponent(NavMeshAgent).destination = target.position;

Just need so pause the movement about half a second or even 1... I have tried co-routines and timers, but the agent seems to override them all...

Many thanks in advance!

Cheers!

Answer 1

Best Answer

Answer by sparkzbarca · Nov 20, 2012 at 06:22 AM

Bear in mind it could be slightly buggy i've never coded in javascript just inferred by reading it on this site the language syntax.

 function wait(targetPos : vector3){
 
 GetComponent(NavMeshAgent).destination = GameObject.transform.position;
 yield WaitForSeconds(1);
 GetComponent(NavMeshAgent).destination = target.position;
 }

mark as answered :)

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Answer 2

Answer by Morm91 · Mar 11, 2015 at 03:07 PM

I've finally found a solution to pause and resume an agent instantly :

 void pause() {
         lastAgentVelocity = agent.velocity;
         lastAgentPath = agent.path;
         agent.velocity = Vector3.zero;
         agent.ResetPath();
     }
     
     void resume() {
         agent.velocity = lastAgentVelocity;
         gent.SetPath(lastAgentPath);
     }

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mcroswell · Mar 11, 2015 at 11:03 PM 0

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This looks like a great and elegant solution. Can't wait to try it someday.

caroparo · Jul 31, 2016 at 06:16 AM 0

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Thanks for sharing. It works pretty well; however I had some trouble resu$$anonymous$$g an agent that's paused right after start when my level reloads. (Unity 5.3.5f1)

I still don't know the exact cause of it but some race condition seemed to have reset my agent's destination before my pause() and resume(). I ended up storing the destination as well, and resets it on resume() if I found the destination is different:

 void pause() {
     lastAgentVelocity = agent.velocity;
     lastAgentPath = agent.path;        
     lastAgentDestination = agent.destination;
     agent.velocity = Vector3.zero;
     agent.ResetPath();
 }
         
 void resume() {
     if (agent.destination == lastAgentDestination) {
         agent.SetPath(lastAgentPath);
     }
     else {
         agent.SetDestination(lastAgentDestination);
     }
 
     agent.velocity = lastAgentVelocity;
 }

Answer 3

Answer by mcroswell · Jan 16, 2013 at 11:43 PM

To pause the agent use NavMeshAgent's Stop() method. You can use the boolean to essentially stop abruptly (true) or smoothly with avoidance (false-the default).

To resume use Resume() and the agent continues to the current destination as you'd expect.

By the way, the above approach seems to be a valid alternative, though it might use a tad more cpu.

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Morm91 · Mar 11, 2015 at 12:29 AM 1

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Hi there. I want to be able to pause and resume a navagent instantly and without deceleration, but it seems the overload Stop(bool) is now depreciated and not working as intended. And I don't find a solution anywhere.

Is there another way to do this ?

mcroswell · Mar 11, 2015 at 01:44 AM 0

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Don't really know and can't try this at the moment, but just saw your post, so wanted to ask: You did try to do the overload without the bool argument (as shown now in the reference docs)? So, I'm guessing your code is being called? I mean, the callback is still called? But just not doing what you want? Idea: Could you call Warp() on your current position, or maybe ResetPath()?

Morm91 · Mar 11, 2015 at 10:04 AM 0

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Yes, i tried without the bool argument, and it does not stop the agent instantly. Warp() and ResetPath() are not good either, because when the agent movement is resumed, i want it to have the same speed as when it stopped (i'm just trying to implement a "pause" in my game).

And what is the callback you are talking about ?

exorakhilas · Oct 26, 2015 at 08:51 AM 0

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thanks @mcroswell. I did try to enable and disabling the agent and it worked too but there will be errors in the console. Stop() and Resume() method works for me. I combined it with the true false boolean and my player switches path :D

Here's how I did it in case it my be helpful to anybody.

 void Update(){
             OnOffNav$$anonymous$$eshAgent();
 }
 
 void OnOffNav$$anonymous$$eshAgent(){
         if (nav$$anonymous$$eshToggle == true) {
             transform.GetComponent<Nav$$anonymous$$eshAgent> ().Resume();
 
         } 
         else if(nav$$anonymous$$eshToggle == false){
             transform.GetComponent<Nav$$anonymous$$eshAgent> ().Stop();
         }
 }

infinitypbr · Jan 24, 2016 at 10:01 PM 0

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Yeah, Stop(true) is depreciated -- but there doesn't seem to be a replacement. When called, agents slowly stop -- maybe over 1/3rd second. But they don't really "pause" at all.

Harinezumi infinitypbr · Mar 26, 2019 at 09:27 PM 0

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I've run into this problem recently: Stop() and Resume() have been replaced with the property bool isStopped. To make the Nav$$anonymous$$eshAgent stop and start more abrutptly, increase the acceleration variable of it.

NavMesh Agent pause?

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