Adding an on_update method to the WindowHandler

[Dorian]

I didn't found any solution to execute a function each tick of the the WindowEventLoop.
Is that possible to add an on_update() method to the WindowHandler trait. Or is it a more simple solution.
For now, the only solution I have found is to call the update function from the on_draw() method but this solution is not optimal because the window have to be redrawn each tick.

[QuantumBadger]

Thanks for the request. The Speedy2D event loop only wakes up when something happens (e.g. a mouse movement or a redraw request), so it doesn't tick in the background (it just remains idle).

If you'd like to perform a regular action in your app, one solution would be to spawn a new thread, which periodically sends a user event to the main thread. For example:

fn on_start(&mut self, helper: &mut WindowHelper<String>, _info: WindowStartupInfo)
{
    let event_sender = helper.create_user_event_sender();
    thread::spawn(move || {
        loop {
            // Send an event every 10ms
            event_sender.send_event(MyEvent{}).unwrap();
            thread::sleep(Duration::from_millis(10));
        }
    });
}

The WindowHandler::on_user_event() callback will be invoked every time send_event() is called. See the user_events.rs sample code for an example of this :)

[Dorian]

Thanks, it works well.