when float is less then zero, do action once

Questions & Answers
1

I’m making a game where time slows down when you aim. There’s a timer so that you can’t aim forever. When the timer goes off, I want the gun to move to the right once, but I can’t seem to figure it out.

I’m fairly new to Unity, so any help would be appreciated.

Here’s the code:

public float currentAim;
public float aimWait;
public bool gunAiming;
public bool gunTimeout;
public bool gunMoved;
public bool gunMovedTrue;

 void Start()
{
    currentAim = maxAim;
    gunAiming = false;

    aimWait = 1f;

    gunMoved = false;
}

// Update is called once per frame
void Update()
{
    if(Input.GetKeyDown(KeyCode.Mouse0))
    {
        Shoot();
    }

    if(currentAim <= 0 && gunMovedTrue)
    {
        gunMoved = true;
        gunMovedTrue = false;
    }
    else
    {
        gunMoved = false;
    }

    if(currentAim <= 0)
    {
        //make guntimeout always true
        gunTimeout = true;

        //make gunmoved true once and then false
      //  gunMoved = true;
    }
    else
    {
        gunTimeout = false;
        gunMoved = false;
    }

    if(gunTimeout)
    {
        gunMovedTrue = true;
    }

    if(Input.GetKeyDown(KeyCode.Mouse1))
    {
        gun.transform.Translate(Vector3.right);
        gunAiming = true;
    }

    if (Input.GetKeyUp(KeyCode.Mouse1))
    {
        gun.transform.Translate(Vector3.left);
        gunAiming = false;
    }

    Aim();

    if (Input.GetKey(KeyCode.Mouse1))
    {
        gunAiming = true;
    }
    else
    {
        gunAiming = false;
    }

    
}

void Aim()
{
    if (gunAiming)
    {
        if (gunTimeout)
        {
            if (gunMoved)
            {
                gun.transform.Translate(Vector3.left);
                gunMoved = false;
            }
            else
            {
                Time.timeScale = 1f;
                camera.fieldOfView = 60;
            }
        }
        else
        {
                Time.timeScale = 0.1f;
                camera.fieldOfView = 45;
                currentAim -= Time.deltaTime * 10;
        }

    }
2

You could do it a few ways. I would use c#s events/ delegates personally but the easiest way I can think of is just to add it to the property setter.

i.e.

public bool GunTimeout;

private float _currentAim = MaxAim;
public float CurrentAim 
{
    get 
    {
        return currentAim;
    }
    set
    {
        GunTimeout = value <= 0.0f;
        _currentAim = value;
    }
}

This way every time you set the CurrentAim to another value it updates the GunTimout bool with the correct value.