Scripts help

A NullReferenceException is a very common error. It has to do with you trying to access something and there being no object to access to. So, say you make a GameObject variable and not assign the variable, and then have the script try to reference some kind of execution attached another object, it cant find that GameObject you are wanting to manipulate.

In your situation, you are calling for a script with rotorScript.audioHasPlayed;. where is the rotorScript attached? You need to do a GameObject.Find().GetComponent(); to assign the rotorScript variable.

so would this work?

private var rotorscript: rotors = GameObject.Find("FrontRotor").GetComponent(rotors);

private var audioHasPlayed: boolean = rotorscript.audioHasPlayed;

or would this work? since GameObject.Find() has to be called from Start or some other function?

var rotorscript: rotors;

var audioHasPlayed: boolean = rotorscript.audioHasPlayed;

function Start () {

rotorscript = GameObject.Find("FrontRotor").GetComponent(rotors);

}

You should assign the boolean variable after you've assigned the script. You might as well keep the variable audioHasPlayed static and do this from the helo script:

 if (rotors.audioHasPlayed) DoSomething();