Help on aiming down sights

Unity Engine
1

Im making a FPS game and its all working good but the only thing i am having a problam with is the amining down your gun sights basicly changing the position of the gun i used the dastardly banana scripts there good but they have errors
ive been searching for weeks but i cant seem to find one that works i even tried riting my own but that didnt work ive had about 1 year experience in unity and im starting to understand vectors bacicly what i whant is so when you press the right mouse key you aim in smoothly and when you let go it aims out to the same place.

This is what ive used but it never gets to the right place.

var start : Transform;
var end : Transform;
function Update () {
if (Input.GetButtonDown("Fire2"))
transform.position = Vector3.Lerp(start.position, end.position, Time.time);

if (Input.GetButtonUp("Fire2"))
transform.position = Vector3.Lerp(end.position, start.position, Time.time);
}

Thank you for reading

2

Without going into any other possible problems, GetButtonDown and GetButtonUp only return true on the first frame after a button is pressed or released, whereas you want something to happen all the while the button is held down, try the following code instead:

var start : Transform;
var end : Transform;
function Update () {
if (Input.GetButton("Fire2"))
transform.position = Vector3.Lerp(start.position, end.position, Time.time);
else
transform.position = Vector3.Lerp(end.position, start.position, Time.time);
}