yield return new WaitForSeconds(); is not working on agent.Stop(true)

Questions & Answers
1

Here is the code snippet:

NavMeshAgent agent;

public float targetStopTime;
public AudioClip strikeSound;

void Start ()
{
	agent = GetComponent<NavMeshAgent>();
}

void OnTriggerEnter (Collider col)
{
	if (col.gameObject.name == "ball(Clone)"){
		AudioSource.PlayClipAtPoint(strikeSound, transform.position); 
		StartCoroutine("pauseTarget");
	}
}

IEnumerator pauseTarget()
{
	agent.Stop (true);
	print("Waitting "+targetStopTime);

        yield return new WaitForSeconds(targetStopTime);

            print("Waited "+targetStopTime);
	agent.Resume();

}

The yield statement works on the second print statement (it does wait before printing). But the agent.Stop(true) lasts only one frame and resumes. (tested with a value of targetStopTime = 5)

2

Ok, so, I have been on a geothermal job site for the past ten days and didn’t have time to work on this. But, today RAIN is stopping us from working so here I am and I came to what I think is an acceptable solution:

I combined both scripts into the following one and it seems to work well enough.

NavMeshAgent agent;
bool targetIsNotHit = true;

public Transform target;
public float targetStopTime = 5.0f;
public AudioClip strikeSound;

void Start ()
{
	agent = GetComponent<NavMeshAgent>();
}

void Update () 
{
	if  (targetIsNotHit == true) {
	agent.SetDestination (target.position);
	}
}

void OnTriggerEnter (Collider col)
{
	if (col.gameObject.name == "ball(Clone)"){
		AudioSource.PlayClipAtPoint(strikeSound, transform.position); 
		StartCoroutine("pauseTarget");
	}
}

IEnumerator pauseTarget()
{
	targetIsNotHit = false;
	agent.Stop (true);

        yield return new WaitForSeconds(targetStopTime);

	targetIsNotHit = true;
	agent.Resume();
}

There is only one small issue: if I hit the target multiple times within the 5 second, it doesn’t reset the five seconds after each hit (but it doesn’t accumulate them either which is a good thing). I just need to see how to reset the five seconds as soon as a hit occurs, even if the last 5 seconds hasn’t ended.