How to make a gun bob

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How to I make it so my gun bobs up and down as i move around?

Don't put the below code in Update put it in FixedUpdate, else you can get unexpected speed variations.

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1 Answer

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#pragma strict

 private var timer : float = 0.0;
 public var bobbingSpeed : float = 0.18;
 public var bobbingAmount : float = 0.2;
 public var midpoint : float = 2.0;
 private var waveslice : float;
 private var horizontal : float;
 private var vertical : float;
 private var totalAxes : float;
 private var translateChange : float;

 function Update () {
    waveslice = 0.0;
    horizontal = Input.GetAxis("Horizontal");
    vertical = Input.GetAxis("Vertical");
    if (Mathf.Abs(horizontal) == 0 && Mathf.Abs(vertical) == 0) {
       timer = 0.0;
    }
    else {
       waveslice = Mathf.Sin(timer);
       timer = timer + bobbingSpeed;
       if (timer > Mathf.PI * 2) {
          timer = timer - (Mathf.PI * 2);
       }
    }
    if (waveslice != 0) {
       translateChange = waveslice * bobbingAmount;
       totalAxes = Mathf.Abs(horizontal) + Mathf.Abs(vertical);
       totalAxes = Mathf.Clamp (totalAxes, 0.0, 1.0);
       translateChange = totalAxes * translateChange;
       transform.localPosition.y = midpoint + translateChange;
    }
    else {
       transform.localPosition.y = midpoint;
    }
 }

unify wikis HeadBobber script can be used

Don't put the code in Update put it in FixedUpdate, else you can get unexpected speed variations.

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https://www.youtube.com/user/elitegames2 He is talking scripts and claiming there his. He used it in a "tutorial" and said it was his.

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I have attached the script to my weapon (It's a group of 2 objects {I think it's called a parent?}), but now it just dissapears. Any Ideas why? I have also attached the script to the 2 childs individually.

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For those who would rather a c# solution here's a working conversion: http://answers.unity3d.com/questions/283086/headbobber-script-in-c.html @PlanetAlexaner if your weapon 'disappears' it's probably because its position is off camera, i.e. the midpoint variable is too large. Make this and the bobbingSpeed and bobbingAmount variables public and you can tweaks things during runtime. With my model I found that the midpoint offset could stay at zero.

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