Question by MonsterGenome · Oct 17, 2016 at 05:56 PM · unity 5 ienumerator teleport enemies slender

How do I get an entity's IEnumerator to pause when the entity is seen?

I've got a villain type who teleports and inches towards the player unless they are seen, but I can't seem to figure out how to make them stop teleporting and moving when they are being rendered. I tried to find a way to use an inverted version of Renderer.isVisible, but couldn't make it work.

Here's the teleporter code as-is: void Start () { ballotBits = 0; rb = GetComponent(); StartCoroutine(SlenderWalk()); }

     IEnumerator SlenderWalk()
     {
         yield return new WaitForSeconds(startWait);
         while (true)
         {
             if (ballotBits == 0)
             {
                 teleDist = Random.Range(startDist.x, startDist.y);
             }
             if (ballotBits == 1)
             {
                 teleDist = Random.Range(firstDist.x, firstDist.y);
             }
 //.....
                     if (ballotBits == 7)
             {
                 teleDist = Random.Range(seventhDist.x, seventhDist.y);
             }
             if (ballotBits == 8)
             {
                 teleDist = Random.Range(eighthDist.x, eighthDist.y);
             }
             teleAngle = Random.Range(player.transform.eulerAngles.y+90f,player.transform.eulerAngles.y+270f);
             PolarToCartesian(teleDist, teleAngle, out teleLoc);
             rb.transform.position = new Vector3 (
                 player.transform.position.x + teleLoc.x,
                 Terrain.activeTerrain.SampleHeight(new Vector3(player.transform.position.x + teleLoc.x, 0, player.transform.position.z + teleLoc.y)) + 1.9f,
                 player.transform.position.z + teleLoc.y
                 );
             yield return new WaitForSeconds(teleWait);
         }
 
     }
     public static void PolarToCartesian(float radius, float polar, out Vector2 outCart)
     {
         polar = polar * Mathf.PI / 180;
         outCart.x = radius * Mathf.Cos(polar);
         outCart.y = radius * Mathf.Sin(polar);
     }

I think that once I know how to pause this It'll be fairly simple to make it work in order to stop them from walking by just applying the same principles to the walking script.

0 Show 1

TBruce · Oct 17, 2016 at 08:16 PM 1

Why are your Random.Range() calls using x and y vector values? The x and y vector values could be easily equal or the y value could be less

Why are you adding Vector3.z values to Vector2.y.

But to answer your question (and without anymore code to go by) you can do something like this (name variables and types to what you want)

 public enum  WalkingStatus {CancelWalking, Inactive, StartWalking, IsWalking};
 
 // default to inactive
 private WalkingStatus walkingStatus = WalkingStatus.Inactive;
 
 void Start()
 {
     // set status to StartWalking
     // this will start the coroutine in Update
     // and change the status to IsWalking
     SetWalkingStatus(WalkingStatus.StartWalking);
 }
 
 void SetWalkingStatus(WalkingStatus status)
 {
     walkingStatus = status;
 }
 
 void Update()
 {
     if (walkingStatus == WalkingStatus.CancelWalking)
     {
         StopCoroutine("SlenderWalk");
         SetWalkingStatus(WalkingStatus.Inactive);
     }
     else if (walkingStatus == WalkingStatus.StartWalking)
     {
         SetWalkingStatus(WalkingStatus.IsWalking);
         StartCoroutine(SlenderWalk);
     }
 }

To cancel/pause the coroutine just call

 SetWalkingStatus(WalkingStatus.CancelWalking);

where needed (if you are doing this in Update, do it above the code provided).

Inside SlenderWalk() change this

 while (true)

to this

 while (walkingStatus == WalkingStatus.IsWalking)

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How do I get an entity's IEnumerator to pause when the entity is seen?

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