Click to move script help

Question

I don't really get what I'm doing wrong. I'm new to scripting and am determined not to just use packages, as I do want to learn to script. There are no error messages and the x, y and z variables of dest don't change when I click. Could someone give me a rundown of what I'm missing please?

pragma strict

var dest : Vector3;

function Update () { if(Input.GetKey(KeyCode.Mouse0)){

      var hit : RaycastHit;

      var ray : Ray = camera.main.ScreenPointToRay(Input.mousePosition);

      Debug.DrawRay(ray.origin, ray.direction*10,Color.yellow);

      dest = hit.point;

      Vector3.MoveTowards(transform.position,dest,10*Time.deltaTime);

} }

Answer 1

Best Answer

Answer by Sospitas · Jul 29, 2013 at 04:07 PM

I think you are missing using an actual raycast. You are creating the ray, however you are not casting it out and calculating the hit point.

Add in the following after the line which starts var ray:

 Physics.Raycast(ray, out hit);

That should hopefully solve your problems. If not, post again and I'll see if I can find out some more :)

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TheBlip · Jul 29, 2013 at 04:23 PM 0

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Thanks for the help. I used Physics.Raycast(ray, hit); (not sure if you need "out" for non-javascript) and it's got the dest variables updating. However the object is not moving towards the point. have I done something wrong with the MoveTowards?

Sospitas · Jul 29, 2013 at 04:36 PM 0

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I work mainly in C#, so you might be right in saying that javascript does not need the out.

For the movement, try changing the

 Vector3.MoveTowards(transform.position,dest,10*Time.deltaTime);

to

 transform.position = Vector3.MoveTowards(transform.position,dest,10*Time.deltaTime);

TheBlip · Jul 29, 2013 at 04:46 PM 0

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Thank you so much! That works perfectly and I even sort of understand the way it works. Thanks again for the help!

Click to move script help

pragma strict

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