how to check when MoveTowards has finished

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Hello,

I've got a small portion of code which does move a GameObject to a random destination (Specified by the target in the array). It all works fine, I just want to know how to check when the "MoveTowards" has finished, so I can find a new destination or target. The last pseudo 'if' statement is what I'm trying to achieve. Thanks a lot!

 #pragma strict
     
     var target : Transform[];
     var isMoving : boolean = false;
     
     var speed : float = 5.0f;
     
     var newTarget : Transform;
     
     function Update()
     { 
         if(isMoving == false)
         {
             newTarget = target[Random.Range(0,target.length)];
             isMoving = true;
         }
         
         transform.position = Vector3.MoveTowards(transform.position, newTarget.position, speed * Time.deltaTime);
 
         if(MoveTowards has finished)
         {
            isMoving = false;
         }
     }

Answer 1

Best Answer

Answer by HYPERSAVV · Jan 08, 2015 at 11:22 PM

Just check to see if transform.position equals newTarget.position

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Answer 2

Answer by Juice-Tin · Jan 08, 2015 at 11:36 PM

 if(Vector3.Distance(transform.position, newTarget.position) < 0.1f){
 //It is within ~0.1f range, do stuff
 }

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2dgamemania · Feb 17, 2017 at 06:08 PM 0

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thanks, i've been hours looking for this solution

Chambers88 · Dec 18, 2020 at 02:15 AM 1

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Since it moves speed * Time.deltaTime units per frame, you could check if the distance is smaller than that to have a more precise result.

 if(Vector3.Distance(transform.position, newTarget.position) < speed * Time.deltaTime){
   //do stuff
 }

Another cool thing you can do is make your own $$anonymous$$oveTowards function that returns whether it reached that position or not. This is good because you will get the result in the same frame as it overshoots the destination, and not one frame after:

 private bool $$anonymous$$oveTowards(Transform t, Vector3 target, float speed) {
     if (Vector3.Distance(transform.position, target) < speed) {
         t.position = target;
         return true;
     } else {
         t.position = Vector3.$$anonymous$$oveTowards(t.position, target, speed);
         return false;
     }
 }

how to check when MoveTowards has finished

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