Coroutune doesn't executes without delay

Questions & Answers
1

I want to execute coroutine 1 time per second, but in practice it turns out that when the program is started, it is waiting for a second, then the coroutine execute without delay.

void Update() {
    StartCoroutine("DecreaseParameters");
}

IEnumerator DecreaseParameters() {
    yield return new WaitForSeconds (1);
    CurrentHunger -= 1;
}

Can’t understand, what’s wrong.

2

you’re calling startcoroutine every frame.
so each call is still waiting for a second before it reduces currentHunger.

This will do it. Could easily be taken out into it’s own method.

float hungerTimer=0;

void Update()
{
    if (hungerTimer >= 1)
    {
        currentHunger -= 1;
        hungerTimer = 0;
    }
    hungerTimer += Time.DeltaTime;
}
3

InvokeRepeating() is a better way to execute code after timed intervals.

Doc: Unity - Scripting API: MonoBehaviour.InvokeRepeating