Divide a number once in update

Questions & Answers
1

This is my Aim Down Sights code, and i want when i ads my recoil divide by 3.
But it divide by 3 every frame until it reach 0.
what i want is:
if recoil is 9 it stay 3 on button fire2 pressed

the AdsController function is called on Update

someone can help?

void AdsController() {
    		Vector3 adsRecoilKickBack = currentWeapon.recoilKickBack / 3;
    		Vector3 adsRecoilRotation = currentWeapon.recoilRotation / 3;
    
    		if(Input.GetButton("Fire2")) {
    			isAiming = true;
    			AdsAnimHolder.transform.localPosition = Vector3.Lerp (AdsAnimHolder.transform.localPosition, currentWeapon.currentSight.adsPos, 0.25f);
    			currentWeapon.recoilKickBack = adsRecoilKickBack;
    			currentWeapon.recoilRotation = adsRecoilRotation;
    		}
    		else {
    			isAiming = false;
    			AdsAnimHolder.transform.localPosition = Vector3.Lerp (AdsAnimHolder.transform.localPosition, Vector3.zero, 0.25f);
    		}
    	}
2

You need to store your variables out of Update loop ( and methods called there too).
Declare your variables globally :

 Vector3 adsRecoilKickBack;
 Vector3 adsRecoilRotation;

Than after you switch weapon adjust their values according to current weapon parameters; Call this method when you switch weapon:

  void UpdateWepData()
    {
        adsRecoilKickBack = currentWeapon.recoilKickBack / 3;
        adsRecoilRotation = currentWeapon.recoilRotation / 3;
    }

Finally remove two lines from your AdsControllerMethod;

void AdsController()
    {
        

        if (Input.GetButton("Fire2"))
        {
            isAiming = true;
            AdsAnimHolder.transform.localPosition = Vector3.Lerp(AdsAnimHolder.transform.localPosition, currentWeapon.currentSight.adsPos, 0.25f);
            currentWeapon.recoilKickBack = adsRecoilKickBack;
            currentWeapon.recoilRotation = adsRecoilRotation;
        }
        else
        {
            isAiming = false;
            AdsAnimHolder.transform.localPosition = Vector3.Lerp(AdsAnimHolder.transform.localPosition, Vector3.zero, 0.25f);
        }
    }

Should work that way.