Question by Dubious-Drewski · Sep 27, 2012 at 06:51 AM · component access

Very simple component-access question

I create a cube. I add a particle emitter component. (I click on Component/Effects/Particle System) I change nothing else. I add this script to the cube:

 function Start () {
     gameObject.particleEmitter.emit = false;
 }

It should instantly turn off the emitter. Seems simple, but when I run this, I get the following error:

MissingComponentException: There is no 'ParticleEmitter' attached to the "TestBox" game object, but a script is trying to access it.

I don't understand, because there is clearly a particle emitter component attached to this cube. Why is Unity claiming there isn't?

EDIT:

I forgot there is the new particle system, so I changed it to particleSystem instead:

 function Start () {
     gameObject.particleSystem.emit = false;
 }

But it just gives me the error:

'ParticleSystem' is not a member of 'UnityEngine.GameObject'. Did you mean 'particleEmitter'?

What what what?!?!!

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Dubious-Drewski · Sep 27, 2012 at 07:15 AM 0

Yes, I forgot about GetComponent, thank you. I tried this:

 gameObject.GetComponent(ParticleEmitter).emit = false;

But I just got this error:

 NullReferenceException: Object reference not set to an instance of an object

I cannot believe how hard a time I am having with this. I've accomplished a lot in Unity so far, but I've been trying to figure out this simple problem for literally weeks. It HAS to be simple! What am I doing wrong?

EDIT:

Here is a screenshot of the whole setup:

http://i.imgur.com/jalZA.png

Dubious-Drewski · Sep 27, 2012 at 07:44 AM 1

Ahha!

     gameObject.GetComponent(ParticleSystem).enableEmission = false;

This is it! This is the code that does it! Thank you so much for your help, but I've finally solved this! Oh my God that was embarrassingly difficult!