koobas.hobune.stream
Yield not working in C#
I'm trying to build FPS counter that will change only once per second in C#.
I have this in class definition:
float FPS;
This in void OnGUI():
GUI.Label(new Rect(0, 30, 600, 30), string.Format("FPS: {0}", this.FPS));
StartCoroutine(ShowFPS());
And this function in class:
IEnumerator ShowFPS()
{
FPS = 1 / Time.smoothDeltaTime;
yield return new WaitForSeconds(1);
}
The FPS counter still changes every frame although the yield return new WaitForSeconds(1);
If I put the StartCoroutine(ShowFPS()); in Update the same thing happens and if I put it in Start it just says FPS: Infinity.
How do I make the yield return new WaitForSeconds(1); wait 1 second?
Currently it is waiting a second - the issue is that nothing happens after that one second, and every frame you're calling another coroutine which does the same thing - changes the fps, then waits a second before doing nothing
What you should do instead is something like:
void Start() { InvokeRepeating("UpdateFPS", 1, 1); }
void UpdateFPS() { FPS = 1 / Time.smoothDeltaTime; }
Which doesn't use coroutines, but easier to understand code
Sure, but it's not going to be noticeable - the dynamic cost will only be done once, after that it's a direct function call from c++
Found the problem myself, adding while(true) inside the coroutine and moving the StartCoroutine to Start did the trick.
