Saving array data?

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Update

I am updating the particle effect.. in the last part here:

pars[i].minSize = minsize[i] * scale; pars[i].maxSize = maxsize[i] * scale;

     pars[i].worldVelocity = worldvelocity[i] * scale;
     pars[i].localVelocity = localvelocity[i] * scale;
     pars[i].rndVelocity = rndvelocity[i] * scale;

     pars[i].transform.localScale = scaleBackUp[i] * scale;

that should be updating it.. sorry if that is not what you meant.

could you not just open unity and try out the script?

sorry if I'm being ignorant but I have only been using unity for about half a year.

Hello,

I am making a script that scales particleFX similar to transform scale so if you change scale to 2 then its twice as big....

I its working prefect except one problem.

Once I enter play mode or delete the particle prefab from the scene and then drag a new one into the hierarchy the data for the scale is lost.

along with this code I have a editor script that calls the UpdateScale function when a button is pressed.

var pars : ParticleEmitter[]; var scale : float; @SerializeField private var minsize : Array = []; @SerializeField private var maxsize : Array = []; @SerializeField private var worldvelocity : Array = []; @SerializeField private var localvelocity : Array = []; @SerializeField private var rndvelocity : Array = []; @SerializeField

private var scaleBackUp : Array = [];

function UpdateScale () { 
    for(i=0;i<pars.length;i++){ 
        minsize.Add(pars[i].minSize);
        maxsize.Add(pars[i].maxSize);

     worldvelocity.Add(pars[i].worldVelocity);
     localvelocity.Add(pars[i].localVelocity);
     rndvelocity.Add(pars[i].rndVelocity);
     scaleBackUp.Add(pars[i].transform.localScale);
     pars[i].minSize = minsize[i] * scale;
     pars[i].maxSize = maxsize[i] * scale;

     pars[i].worldVelocity = worldvelocity[i] * scale;
     pars[i].localVelocity = localvelocity[i] * scale;
     pars[i].rndVelocity = rndvelocity[i] * scale;

     pars[i].transform.localScale = scaleBackUp[i] * scale;
 }

Editor script:

using UnityEngine;

using UnityEditor;
[CustomEditor(typeof(Scale))]
public class ScaleEditor : Editor
{
 public override void OnInspectorGUI()
 {
        Scale scaleBeingInspected = target as Scale;
        base.OnInspectorGUI();
        if (GUILayout.Button("Update Scale"))
        {
           scaleBeingInspected.UpdateScale();
        }
 }

So I was wondering if there is anyway to make that scale data get saved....

Hopefully I worded this correctly. I am in a hurry to get this code ready.. so any help would be greatly appreciated!

Answer 1

Answer by Statement · Dec 09, 2010 at 05:43 PM

You need to serialize the private variables.
You need to use built-in arrays or Lists.
Private variables are not serialized (stored) by default.

Update

See this related question I just asked.

You need to explicitly tell unity the type of your array. You have to explicitly type the array with your target type. Simple. Use a built-in array or a List.

For example:

@SerializeField
private var minsize : float[];

Then you can allocate enough memory (since you can't use Add() any longer):

minsize = new float[pars.length];

Another update

You were allocating arrays in the loop. Also I cleaned up some of the code to make it a little more readable. Are you sure that you are updating the emitters somewhere along the way after you've edited them?

var pars : ParticleEmitter[]; var scale : float;

@SerializeField
private var minsize : float[];

@SerializeField
private var maxsize : float[];

@SerializeField
private var worldvelocity : Vector3[];

@SerializeField
private var localvelocity : Vector3[];

@SerializeField
private var rndvelocity : Vector3[];

@SerializeField
private var scaleBackUp : Vector3[];

function UpdateScale () {

 var length = pars.length;

 minsize = new float[length];
 maxsize = new float[length];
 worldvelocity = new Vector3[length];
 localvelocity = new Vector3[length];
 rndvelocity = new Vector3[length];
 scaleBackUp = new Vector3[length];

 for ( i = 0 ; i &lt; length ; i++ ) { 
     var emitter = pars[i];

     minsize[i] = emitter.minSize;
     maxsize[i] = emitter.maxSize;
     worldvelocity[i] = emitter.worldVelocity;
     localvelocity[i] = emitter.localVelocity;
     rndvelocity[i] = emitter.rndVelocity;
     scaleBackUp[i] = emitter.transform.localScale;

     emitter.minSize = minsize[i] * scale;
     emitter.maxSize = maxsize[i] * scale;
     emitter.worldVelocity = worldvelocity[i] * scale;
     emitter.localVelocity = localvelocity[i] * scale;
     emitter.rndVelocity = rndvelocity[i] * scale;
     emitter.transform.localScale = scaleBackUp[i] * scale;
 }

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3dDude · Dec 09, 2010 at 06:30 PM 0

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hello statement.

I tried what you said and no luck :(

I edited my question with the new code maybe you can look at it and tell me if i edited it right?

3dDude · Dec 09, 2010 at 06:31 PM 0

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also I am using unity basic if that matters...

Statement · Dec 09, 2010 at 09:24 PM 0

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Looking at the documentation again it says "Arrays of a serializable type". I don't know if Array host a "serializable type". Can you change it so that the arrays are typed? Like if your minsize is storing floats can you do private var minsize : float[];

3dDude · Dec 09, 2010 at 10:29 PM 0

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hmmmm I have tried that but then you cant accesses the Array.Add(); function :( and i need that function for the script to work... any ideas? thanks

Statement · Dec 09, 2010 at 10:33 PM 0

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See my update. You need to allocate the array with the 'new' keyword before using it.

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Answer 2

Answer by 3dDude · Dec 09, 2010 at 11:46 PM

Update:

ok I am using the exact same code you posted and here is a pic of the Hierarchy:

alt text

ok sorry for answering instead of commenting but that would be the last comment, so then you could not write back.

so still not working.. I might gave overlooked something..

thanks a lot for helping me this!

here is the updated code:

var pars : ParticleEmitter[]; var scale : float;

@SerializeField
private var minsize : float[];

@SerializeField
private var maxsize : float[];

@SerializeField
private var worldvelocity : Vector3[];

@SerializeField
private var localvelocity : Vector3[];

@SerializeField
private var rndvelocity : Vector3[];

@SerializeField
private var scaleBackUp : Vector3[];

function UpdateScale () { 
    for(i=0;i<pars.length;i++){

     minsize = new float[pars.length];
     minsize[i] = pars[i].minSize;

     maxsize = new float[pars.length];
     maxsize[i] = pars[i].maxSize;

     worldvelocity = new Vector3[pars.length];
     worldvelocity[i] = pars[i].worldVelocity;

     localvelocity = new Vector3[pars.length];
     localvelocity[i] = pars[i].localVelocity;

     rndvelocity = new Vector3[pars.length];
     rndvelocity[i] = pars[i].rndVelocity;

     scaleBackUp = new Vector3[pars.length];
     scaleBackUp[i] = pars[i].transform.localScale;


     pars[i].minSize = minsize[i] * scale;
     pars[i].maxSize = maxsize[i] * scale;

     pars[i].worldVelocity = worldvelocity[i] * scale;
     pars[i].localVelocity = localvelocity[i] * scale;
     pars[i].rndVelocity = rndvelocity[i] * scale;

     pars[i].transform.localScale = scaleBackUp[i] * scale;
 }

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Statement · Dec 10, 2010 at 12:12 AM 0

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Instead of posting another reply, edit your question instead.

Statement · Dec 10, 2010 at 12:17 AM 0

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... And I would write back. I get perfect messages from unityAnswers system that someone would reply to any of my posts :) So do not be afraid I notice you less if you post a comment in my answer.

3dDude · Dec 10, 2010 at 12:51 AM 0

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yeah sorry. I have noticed that it only allows 8 comments and there are 7 now so if I had commented then how would you have written back?

thanks for the code cleanup I am kind of unorganized hehe

updated the question

anyway thanks for the code clean up and

3dDude · Dec 10, 2010 at 12:52 AM 0

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ok that was weird it cut of what I was going to say...

I updated the question.

Statement · Dec 10, 2010 at 01:29 AM 0

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Huh? It still doesn't work for you? have you seen my update? I went ahead and tried it myself. I create a game object, add your Scale script, and add a particle emitter to it. I set scale to some value, say 2 and press update. I see the many arrays are populated. I make a prefab out of it. I delete it and add it back to the scene and all values are there, as expected. I think you're doing something way different than what I assume you were doing with this script unless you haven't tried the new version.

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Saving array data?

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