Halo Type Zoom Script

Here is a halo type zoom script. Use z to trigger it.

Here is so hold down z, zoom. Let go of z, unzoom.

var fov = 55;
function Update()
{
if (Input.GetKeyDown("z"))
fov = 5;
if (Input.GetKeyUp("z"))
fov = 55;
if (Camera.main.fieldOfView < fov)
Camera.main.fieldOfView++;
if (Camera.main.fieldOfView > fov)
Camera.main.fieldOfView--;
}

Here is toggle

var zoomed = false;
var minfov = 5;
var maxfov = 55;

function Update()
{
if (Input.GetKeyDown("z"))
zoomed = !zoomed;
if (!zoomed && Camera.main.fieldOfView < maxfov)
Camera.main.fieldOfView++;
if (zoomed && Camera.main.fieldOfView > minfov)
Camera.main.fieldOfView--;
}