Checking for input by using Update or a Coroutine - is there a timing difference?

Questions & Answers
1

I was just looking at a project’s code and saw that it uses a coroutine for checking for input.
Is there a functional difference between the following?

private IEnumerator WaitForTap()
{
       while (true)
        {
                    if (Input.GetMouseButtonDown(0))
                    {
                        //do something
                    }
                    yield return 0;
         }
}

or

void Update()
        {
            if (Input.GetMouseButtonDown(0))
            {
                //do something
            }
        }

Say that I would want to record the timestamp of the tap in //do something - would there be a difference in precision between the two?

2

I’m not sure if Input updates mid frame (I suspect it does not). If it does though, assuming your game is running at 60fps, you’re talking about a difference of 16 thousandths of a second. The top version is simpler and less error prone. I’d go with it.