Crate update_rate [−] [src]

This crate provides a utility for counting updates, for instance frame rates. The struct UpdateRateCounter has a method, .update(), which is meant to be called every time your system updates (e.g. every frame, every physics update, etc).

Examples

The one important thing to remember is to call your Counter's update() at the beginning of your cycles.

use update_rate::UpdateRateCounter;
 
// Create a new UpdateRateCounter with a sample rate of 10 updates
let mut c = UpdateRateCounter::new(10);

for _ in 1..11 {
    c.update();
    // Rate should be 100 Hz with 10 ms/update
    std::thread::sleep(std::time::Duration::from_millis(10));
}

let difference = 100.0 - c.rate();
println!("Rate was {}", c.rate());
assert!(difference < 10.0, "Counter rate should be closer to actual rate.");

Structs

UpdateRateCounter

A generic non-rolling update counter, suitable for rapidly-changing rate counting, such as FPS counters in games.