First-person weapon sway?

[AngryCSharpNerd]

You know how when you move your mouse very quickly, your equipped gun/sword/whatever gives a swaying motion?

I’m not sure how to do this at all, but I really need to use it for realism. The only way I can see this working is by doing some math formula to calculate the velocity of your mouse moving, which I’m not sure how to ever call such a thing in a script.

[Chronos-L]

Look at Input.GetAxis, Ctrl-F for “mouse”. You can use the GetAxis() to get the delta of the mouse movement in x and y. However, it is possible that you will need the 2 axis together to perform a more accurate calculation ( Vector2.magnitude etc ). So I wrap them in a Vector2 named mouseDelta. Larger magnitude means a larger sway.

private Vector2 mouseDelta;

void Start() {
   mouseDelta = Vector2.zero;
}

void Update() {
   CalculateMouseDelta();

   //use the mouseDelta to perform all sort of calculations
}

void CalculateMouseDelta() {
   mouseDelta.x = Input.GetAxis( "Mouse X" );
   mouseDelta.y = Input.GetAxis( "Mouse Y" );
}