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Question by sam32x · Jul 02, 2012 at 12:38 AM · lookatexplosionmissilesomething

missile doesn't move

the missile doesnt move or look at the target, it just sits there and then explodes after 10 seconds heres the script:

 var target : Transform;
 var explosion : GameObject;
 var activated = 1;
 
 function Start () {
 Invoke("Destroy",10);
 }
 
 function Update () {
 if(activated == 1){
 transform.Translate(Vector3.forwards * Time.deltaTime * 20);
 transform.LookAt(target);
 }
 if(activated == 1){
 if(Vector3.distance(transform.position,target.position)<= 10){
 activated = 0;
 }
 }
 }
 
 function OnCollisionEnter () {
 Destroy();
 }
 
 function Destroy () {
 Instantiate(explosion,transform.position,transform.rotation);
 Destroy(gameObject);
 }
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Answer by aldonaletto · Jul 02, 2012 at 12:50 AM

There's a typo in this line:

   transform.Translate(Vector3.forwards * Time.deltaTime * 20);

It should be Vector3.forward, not Vector3.forwards: this error causes an exception that aborts the rest of the routine, thus nothing else happens (excluding the tons of error messages popping in the console view)

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avatar image sam32x · Jul 02, 2012 at 12:54 AM 0
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oh lol thanks

avatar image aldonaletto · Jul 02, 2012 at 12:59 AM 0
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You could also declare activated as boolean, what would simplify things:

var target : Transform;
var explosion : GameObject;
var activated: boolean = true;
...
function Update () {
  if (activated){ // boolean variables are easier to use
    transform.Translate(Vector3.forward * Time.deltaTime * 20);
    transform.LookAt(target);
    if (Vector3.distance(transform.position,target.position)

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Answer by juliobds · Jul 02, 2012 at 12:46 AM

Are you getting any warnings or errors? Maybe at: Invoke("Destroy",10);

Besides that I don't see why it shouldn't work.

Edit: Oh, and check if the distance between the missile and the target really isn't smaller than 10

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