Assigning Vector3 Array values in C#

Question

Yes, this has been debated a lot, yet I'm unable to find a stup similar to mine, nor any help in the Unity documentation, because it's pretty outdated on the C# Array stuff. I have filed this to Unity. In the meantime, I'm STUCK, oh my GOD I hate it, any pointer would be very appreciated, thanks :)

 using UnityEngine;
 using System.Collections;
 
 public class Star_Handler : MonoBehaviour
 {    
         public GameObject[] stars;
         public Vector3[] starMov;
 
         void Start ()
         {
                 stars = GameObject.FindGameObjectsWithTag ("Star");
                 for (int i = 0; i<stars.Length; i++) {
                         starMov [i] = new Vector3 (1.2f, 1.2f, 1.2f);//this line is giving me an Array out of range - why?
                 }
         }
 }

Answer 1

Best Answer

Answer by Habitablaba · Oct 08, 2014 at 08:39 PM

You aren't initializing starMov to anything, so starMov[i], where i is anything will return array out of bounds.
Try this:

 stars = GameObject.FindGameObjectsWithTag("Star");
 starMov = new Vector3[stars.Length];
 for(int i = 0; i < stars.Length; ++i){
   starMov[i] = new Vector3(1.2f, 1.2f, 1.2f);
 }

Edit: I was overzealous with my parens, fixed now.

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Fritsl · Oct 08, 2014 at 08:46 PM 0

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You are right - I should need to initialize it - I had tried that without success - and unfortunately your code does not do the trick ;/

Something is wrong with

star$$anonymous$$ov = new Vector3[stars.Length]();

it returns

Expression denotes a value', where a method group' was expected

and even if I replace it with say

star$$anonymous$$ov = new Vector3[500);

I still get the OutOfRange error!

Habitablaba · Oct 08, 2014 at 08:50 PM 1

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the code you've posted in your comment makes no sense... is it copy/paste from your actual code, or are you retyping it in here?

If that is the actual code you are using, you are messing up your braces.
Look carefully at my code and your code. See how I use the square brackets around star.Length in the array initializer? See how the code you've posted does not?

Fritsl · Oct 08, 2014 at 08:56 PM 0

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O$$anonymous$$G; you are right, I'm sorry, I was misreading you and basically going totally bra[e blind after pounding that same thing too long :) Thank you very much!!

Fritsl · Oct 08, 2014 at 08:58 PM 0

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"Edit: I was overzealous with my parens, fixed now." Lol - I thought I was going crazy :D Thanks a bunch!!

Habitablaba · Oct 08, 2014 at 08:59 PM 0

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If its all working, don't forget to mark the answer ;)

Assigning Vector3 Array values in C#

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