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Question by Radon · Jul 28, 2012 at 02:32 AM · javascripterrordistance

Error in distance coding

Hello, I was wondering why my MinDis and MaxDis are not working in the following code

 var MoveSpeed : float = 5;
 var Player : Transform;
 var MaxDis = 10;
 var MinDis = 2;
 
 function Start () {
 
 }
 
 function Update () 
 {
  transform.LookAt(Player);
  if(Vector3.Distance(transform.position, Player.position) >= MinDis);
  transform.position += transform.forward*MoveSpeed*Time.deltaTime;
  
  if(Vector3.Distance(transform.position, Player.position) <= MaxDis);
  gameObject.GetComponent(AIGun).Fire();
 }
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avatar image Seth-Bergman · Jul 28, 2012 at 02:38 AM 0
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what happens?

avatar image Radon · Jul 28, 2012 at 02:43 AM 0
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It doesn't work. The $$anonymous$$imum and maximum distance.

avatar image Seth-Bergman · Jul 28, 2012 at 02:48 AM 0
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well, if you're under the max, you should always be firing, and if you're over the $$anonymous$$, you're always moving.. so you're saying it doesn't move or fire?

or it doesn't stop moving when it gets within 2?

doesn't stop firing when it gets further than 10?

avatar image Radon · Jul 28, 2012 at 02:50 AM 0
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It fires and moves, but it doesn't stop or start at my max and $$anonymous$$ units

avatar image Seth-Bergman · Jul 28, 2012 at 02:56 AM 0
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so it runs right into the player? try exposing the distances as vars in the inspector, see what's happening.. Add another var at the top:

var currentDistance : float;

then inside Update(), add the line:

currentDistance = Vector3.Distance(transform.position, Player.position);

see if it's working

maybe you just need to adjust the values

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Best Answer

Answer by aldonaletto · Jul 28, 2012 at 02:59 AM

There are syntax errors in both **if*s: the semicolon after the if* make it do nothing, and the next instruction is always executed. The code should be like this:

 if(Vector3.Distance(transform.position, Player.position) >= MinDis){
   transform.position += transform.forward*MoveSpeed*Time.deltaTime;
 }
 if(Vector3.Distance(transform.position, Player.position) <= MaxDis){
   gameObject.GetComponent(AIGun).Fire();
 }
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avatar image Radon · Jul 28, 2012 at 03:03 AM 0
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Ok, it works fine. Only problem now is that it doesn't come towards me. It keeps going forward in its regular path.

avatar image Seth-Bergman · Jul 28, 2012 at 03:06 AM 0
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put back the line

transform.LookAt(Player);

avatar image Radon · Jul 28, 2012 at 03:08 AM 0
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It works fine now. Thanks a lot Aldo.

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