Script that activates all objects in layer on collision not working

Question

Hello, I'm writing a script that activates all the objects in a layer once my player hits a collider.

This is the script I have so far, but I'm getting the error 'active' not a member of 'int' (JavaScript):

 var layer : int;
 
 
 function Start () {
 
 layer = gameObject.layer = 8;
 
 layer.active = false;
 
 }
 
 function OnTriggerEnter (other : Collider) {
 
 layer = gameObject.layer = 8;
 
 if(other.gameObject.tag == "Player") {
 
 gameObject.layer.active = true;
 
 }
 
 }

Any ideas on what I'm doing wrong (sorry for the newbie question!)

Thanks, Laurien

Answer 1

Hello again!

Firstly, if this code was to work:

 layer = gameObject.layer = 8;
 layer.active = false;

you would never be able to reactivate the objects as the code is attached to an object that is deactivated, meaning it stops being called. So make sure you attach this code to an object not on layer 8

Here's some code that utilises the answer to this question

 var layer : int = 8;
 var LayerObjects : GameObject[];
 
 function Start () {
     LayerObjects = FindGameObjectsWithLayer(layer);
     ActivateGameObjects(LayerObjects, false);
 }
 
 function OnTriggerEnter (other : Collider) {
     if(other.gameObject.tag == "Player") {
         ActivateGameObjects(LayerObjects, true);
     }
 }
 
 function FindGameObjectsWithLayer (layer : int) : GameObject[] {
     var goArray = FindObjectsOfType(GameObject);
     var goList = new System.Collections.Generic.List.<GameObject>();
     for (var i = 0; i < goArray.Length; i++) {
         if (goArray[i].layer == layer) {
             goList.Add(goArray[i]);
         }
     }
     if (goList.Count == 0) {
         return null;
     }
     return goList.ToArray();
 }
 
 function ActivateGameObjects (Objects : GameObject[], activate : boolean){
     for(var go : GameObject in Objects){
         go.active = activate;
     }
 }

So calling FindGameObjectsWithLayer(someInt); will return an array of all objects on that layer which in the start function I save to 'LayerObjects' this is important as it is the only way to find the objects again once they are deactivated.

Then calling ActivateGameObjects(listofGameObjects, TrueorFalse); will set the activity of all objects in 'listofGameObjects' to 'TrueorFalse'

Make sure you dont call LayerObjects = FindGameObjectsWithLayer(layer); again whilst the objects are deactivated as this will show up as having no objects on layer 8

Scribe

Answer 2

Answer by SubatomicHero · Jun 06, 2013 at 01:40 PM

Hi Laurien,

You will get that error as you're using the layer integer not the gameobject layer. All you're doing in start() is assign int layer = 8;

Change Start() to this:

 function Start() {
     gameObject.layer = 8;
     layer = gameObject.layer;
     gameObject.layer.active = false;
 }

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laurienash · Jun 06, 2013 at 02:04 PM 0

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That's still giving me the same error :(

Script that activates all objects in layer on collision not working

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