Null Reference when trying to set a distance in which the cursor changes colour

Unity Engine
1

The script below is attached to any object that I want to interact with (later on) what is meant to happen is that when the camera/FPC is a certain distance away from the object with the cursor on it, the colour should revert back to the normal colour when its not on any object, but I keep getting NullReference and I know it has to do with the variable cam but i’m just not sure what to do.

var gamePointer : GameObject;
private var cam : GameObject;
var triggerDistance : float = 7.0;

function Start() {
cam = GameObject.Find(“Main Camera”);
}

function OnMouseEnter () {
print (DistanceFromCamera());
if (DistanceFromCamera() > triggerDistance) return;
gamePointer.SendMessage(“CursorColorChange”, true);
}

function OnMouseExit(){
gamePointer.SendMessage(“CursorColorChange”, false);
}

function DistanceFromCamera() {
var heading : Vector3 = transform.position - cam.tranform.position;
var distance : float = Vector3.Dot(heading, cam.transform.forward);
return distance;
}

If anyone can help me I’d be really grateful.

2

Have you about making the cam variable non private. Like that you can directly assign it and be sure that it is not null.

3

I’ve tried that and i just get the same problem on the following line -

var heading : Vector3 = transform.position - cam.tranform.position;

Even though the camera has been defined.

4

There is a syntax error. It should be

var heading : Vector3 = transform.position - cam.transform.position;

You forgot the s in transform.

But this does not produce a null reference exception.

5

OMFG i am actually retarded thank you so much