Zooming in with a gun, Halo style.

Questions & Answers
1

Hello,

I am trying to make a game where you can press and hold a button and you will be zoomed in like in halo. So far, I have this:

function Update () {
if (Input.GetButtonDown("Fire2"))
{
    camera.fieldOfView = 26;
}
else if (Input.GetButtonUp("Fire2"))
{
    camera.fieldOfView = 66;
}

}

With this code, the camera just jumps forward. I want it to smoothly zoom in and out. Let me know if I can make myself clearer.

Thanks

Tate

2

Ahoy there, Tate.

Here's a quick and dirty solution. Put this in at the beginning of your script:

private var zoom : boolean = false;

and change your current code to:

var zoomSpeed : float = 2.5;

if (Input.GetButtonDown("Fire2"))
{
    if(zoom==false){zoom=true;}
    else{zoom=false;}
}

if(zoom==false)
{
    if(camera.fieldOfView<66)
    {
        camera.fieldOfView = Mathf.Clamp(camera.fieldOfView+zoomSpeed,26,66);
    }
}
else
{
    if(camera.fieldOfView>26)
    {
        camera.fieldOfView = Mathf.Clamp(camera.fieldOfView-zoomSpeed,26,66);
    }
}

Hope that's what you're after

3

Here's a configurable scope script.

You can adjust the following variables directly on the inspector, but it should work out of the box for you. It requires a camera.

  • Scope Button
  • Scope Speed
  • Scope Fov
  • Normal Fov
var scopeButton : String = "Fire2";
var scopeSpeed  : float  = 250; 
var scopedFov   : float  = 26;
var normalFov   : float  = 66;

camera.fieldOfView = normalFov;

function Update()
{
    var isScoping = Input.GetButton(scopeButton);
    var targetFov = isScoping ? scopedFov : normalFov;   
    var speed = scopeSpeed * Time.deltaTime;
    camera.fieldOfView = Mathf.MoveTowards(camera.fieldOfView, targetFov, speed);
}