Creating distance when clicking object

Unity Engine
1

I am new to Unity3d and have learned a lot. I have a cube that is click-able to launch a web page. But you can be anywhere in the environment and click the object whenever. I want to create a certain distance that you have to be in to be able to click the object. I found some other scripts on this but have not gotten any to work.

Any help would be great.

Thanks

2

Within the routine that processes the click, test for distance from the camera.

3

var other : Transform;
if (other) {
var dist = Vector3.Distance(other.position, transform.position);
print ("Distance to other: " + dist);
}

I put the script on my object and drug my FP camera to the other: slot in the inspector panel.

Then where it has "Distance to other: " do I put some distance there?

Its somewhat confusing.

4

Ive tried the Vector 3 script with no avail.

When I get right up to the object I want to be able to highlight it and when I step back its unavailable.

I have the highlight script on the gameobject already. I just need a distance limitation to add to it