fn run_loop_mode_rate<M, E>(
    app: &mut App,
    mut model: M,
    loop_ctxt: &mut LoopContext<M, E>,
    mut update_interval: Duration,
) -> Break<M>
where
    M: 'static,
    E: LoopEvent,
{
    loop {
        // Handle any pending window events.
        app.events_loop
            .poll_events(|event| loop_ctxt.winit_events.push(event));
        for winit_event in loop_ctxt.winit_events.drain(..) {
            let (new_model, exit) =
                process_and_emit_winit_event(app, model, loop_ctxt.event_fn, winit_event);
            model = new_model;
            if exit {
                let reason = BreakReason::Exit;
                return Break { model, reason };
            }
        }

        // Update the app's durations.
        let now = Instant::now();
        let since_last = now.duration_since(loop_ctxt.last_update).into();
        let since_start = now.duration_since(loop_ctxt.loop_start).into();
        app.duration.since_start = since_start;
        app.duration.since_prev_update = since_last;
        app.time = app.duration.since_start.secs() as _;

        // Emit an update event.
        let update = update_event(loop_ctxt.loop_start, &mut loop_ctxt.last_update);
        if let Some(event_fn) = loop_ctxt.event_fn {
            let event = E::from(update.clone());
            event_fn(&app, &mut model, event);
        }
        if let Some(update_fn) = loop_ctxt.update_fn {
            update_fn(&app, &mut model, update);
        }

        // Draw to each window.
        for window_id in app.window_ids() {
            acquire_image_and_view_frame(app, window_id, &model, loop_ctxt.default_view.as_ref());
        }

        // Sleep if there's still some time left within the interval.
        let now = Instant::now();
        let since_last_loop_end = now.duration_since(loop_ctxt.last_loop_end);
        if since_last_loop_end < update_interval {
            std::thread::sleep(update_interval - since_last_loop_end);
        }
        loop_ctxt.last_loop_end = Instant::now();

        // See if the loop mode has changed. If so, break.
        update_interval = match app.loop_mode() {
            LoopMode::Rate { update_interval } => update_interval,
            loop_mode => {
                let reason = BreakReason::NewLoopMode(loop_mode);
                return Break { model, reason };
            }
        };
    }
}
// Run the application loop under the `Rate` mode.
Run the application loop under the `Rate` mode.
Run the application loop under the ` Rate ` mode .
fn run_loop_mode_rate<M, E>(
    app: &mut App,
    mut model: M,
    loop_ctxt: &mut LoopContext<M, E>,
    mut update_interval: Duration,
) -> Break<M>
where
    M: 'static,
    E: LoopEvent,
{
    loop {
        // Handle any pending window events.
        app.events_loop
            .poll_events(|event| loop_ctxt.winit_events.push(event));
        for winit_event in loop_ctxt.winit_events.drain(..) {
            let (new_model, exit) =
                process_and_emit_winit_event(app, model, loop_ctxt.event_fn, winit_event);
            model = new_model;
            if exit {
                let reason = BreakReason::Exit;
                return Break { model, reason };
            }
        }
        // Update the app's durations.
        let now = Instant::now();
        let since_last = now.duration_since(loop_ctxt.last_update).into();
        let since_start = now.duration_since(loop_ctxt.loop_start).into();
        app.duration.since_start = since_start;
        app.duration.since_prev_update = since_last;
        app.time = app.duration.since_start.secs() as _;
        // Emit an update event.
        let update = update_event(loop_ctxt.loop_start, &mut loop_ctxt.last_update);
        if let Some(event_fn) = loop_ctxt.event_fn {
            let event = E::from(update.clone());
            event_fn(&app, &mut model, event);
        }
        if let Some(update_fn) = loop_ctxt.update_fn {
            update_fn(&app, &mut model, update);
        }
        // Draw to each window.
        for window_id in app.window_ids() {
            acquire_image_and_view_frame(app, window_id, &model, loop_ctxt.default_view.as_ref());
        }
        // Sleep if there's still some time left within the interval.
        let now = Instant::now();
        let since_last_loop_end = now.duration_since(loop_ctxt.last_loop_end);
        if since_last_loop_end < update_interval {
            std::thread::sleep(update_interval - since_last_loop_end);
        }
        loop_ctxt.last_loop_end = Instant::now();
        // See if the loop mode has changed. If so, break.
        update_interval = match app.loop_mode() {
            LoopMode::Rate { update_interval } => update_interval,
            loop_mode => {
                let reason = BreakReason::NewLoopMode(loop_mode);
                return Break { model, reason };
            }
        };
    }
}
fn run_loop_mode_rate < M , E > ( app : & mut App , mut model : M , loop_ctxt : & mut LoopContext < M , E > , mut update_interval : Duration , ) -> Break < M > where M : ' static , E : LoopEvent , { loop { // Handle any pending window events. app . events_loop . poll_events ( | event | loop_ctxt . winit_events . push ( event ) ) ; for winit_event in loop_ctxt . winit_events . drain ( .. ) { let ( new_model , exit ) = process_and_emit_winit_event ( app , model , loop_ctxt . event_fn , winit_event ) ; model = new_model ; if exit { let reason = BreakReason :: Exit ; return Break { model , reason } ; } } // Update the app's durations. let now = Instant :: now ( ) ; let since_last = now . duration_since ( loop_ctxt . last_update ) . into ( ) ; let since_start = now . duration_since ( loop_ctxt . loop_start ) . into ( ) ; app . duration . since_start = since_start ; app . duration . since_prev_update = since_last ; app . time = app . duration . since_start . secs ( ) as _ ; // Emit an update event. let update = update_event ( loop_ctxt . loop_start , & mut loop_ctxt . last_update ) ; if let Some ( event_fn ) = loop_ctxt . event_fn { let event = E :: from ( update . clone ( ) ) ; event_fn ( & app , & mut model , event ) ; } if let Some ( update_fn ) = loop_ctxt . update_fn { update_fn ( & app , & mut model , update ) ; } // Draw to each window. for window_id in app . window_ids ( ) { acquire_image_and_view_frame ( app , window_id , & model , loop_ctxt . default_view . as_ref ( ) ) ; } // Sleep if there's still some time left within the interval. let now = Instant :: now ( ) ; let since_last_loop_end = now . duration_since ( loop_ctxt . last_loop_end ) ; if since_last_loop_end < update_interval { std :: thread :: sleep ( update_interval - since_last_loop_end ) ; } loop_ctxt . last_loop_end = Instant :: now ( ) ; // See if the loop mode has changed. If so, break. update_interval = match app . loop_mode ( ) { LoopMode :: Rate { update_interval } => update_interval , loop_mode => { let reason = BreakReason :: NewLoopMode ( loop_mode ) ; return Break { model , reason } ; } } ; } }
Run the application loop under the `Rate` mode.
Run the application loop under the ` Rate ` mode .
app
&mut App
model
M
loop_ctxt
&mut LoopContext<M, E>
update_interval
Duration
app
&mut App
model
M
loop_ctxt
&mut LoopContext<M, E>
update_interval
Duration