Call function only if last call was >= X seconds ago

[SoBiT]

What is the best way to check if the function has already been called in the last X seconds?

Is increasing a Variable each second good for performance? Or are there better possibilities?

[Dave-Carlile]

Here’s a simple example of one way to do this. You track elapsed time by adding time.deltaTime to a float variable every frame. Once the float variable exceeds your target time (I’m using 10 seconds here, you should make it a constant or store in another variable so it’s easily configurable), execute the timed code, and reset the timer back to zero.

float timeSinceLastCall;

void Update()
{
    timeSinceLastCall += time.deltaTime;

    if (timeSinceLastCall >= 10)
    {
      // TODO : do timed stuff
      timeSinceLastCall = 0;   // reset timer back to 0
    }
}

If you just want to execute something repeatedly every x seconds, you might also take a look at InvokeRepeating.