fn update_duration_and_check<T>(
    control: &SamplerControl<T>,
    sampler: &Sampler<T::Primitive>,
    time: &Time,
) -> (ControlState, Option<EndControl>)
where
    T: AnimationSampling,
{
    use resources::ControlState::*;
    // Update state with new duration
    // Check duration for end of sampling
    match control.state {
        // requested sampling => start interpolating
        Requested => (Running(Duration::from_secs(0)), None),

        // deferred start that should start now
        Deferred(dur) => (Running(dur.clone()), None),

        // abort sampling => end interpolating
        Abort => (Done, None),

        // sampling is running, update duration and check end condition
        Running(duration) => {
            let zero = Duration::from_secs(0);
            let current_dur =
                duration + secs_to_duration(time.delta_seconds() * control.rate_multiplier);
            let last_frame = sampler
                .input
                .last()
                .cloned()
                .map(secs_to_duration)
                .unwrap_or(zero.clone());
            // duration is past last frame of sampling
            if last_frame != zero && current_dur > last_frame {
                // Check end conditions
                match control.end {
                    // Do loop control
                    EndControl::Loop(Some(i)) if i <= 1 => (Done, Some(EndControl::Normal)),
                    EndControl::Loop(None) => {
                        (Running(next_duration(last_frame, current_dur).0), None)
                    }
                    EndControl::Loop(Some(i)) => {
                        let (next_dur, loops_removed) = next_duration(last_frame, current_dur);
                        let remaining_loops = i - loops_removed;
                        if remaining_loops <= 1 {
                            (Done, Some(EndControl::Normal))
                        } else {
                            (
                                Running(next_dur),
                                Some(EndControl::Loop(Some(remaining_loops))),
                            )
                        }
                    }
                    // All other end cases will be handled during sampling
                    _ => (Done, None),
                }
            } else {
                // last frame not reached, keep sampling
                (Running(current_dur), None)
            }
        }

        // Done and paused will be handled during sampling
        ref state => (state.clone(), None),
    }
}
/// Update durations, check if the sampler is finished, start new samplers, and check for aborted
/// samplers.
///
/// ## Parameters
///
/// - `control`: sampler control object
/// - `sampler`: sampler reference from control
/// - `now`: synchronized `Instant` for the current frame
///
/// ## Returns
///
/// Will return the new state of the sampling, and optionally a new end control state (for looping)
Update durations, check if the sampler is finished, start new samplers, and check for aborted
samplers.
Update durations check if the sampler is finished start new samplers and check for aborted samplers .
fn update_duration_and_check<T>(
    control: &SamplerControl<T>,
    sampler: &Sampler<T::Primitive>,
    time: &Time,
) -> (ControlState, Option<EndControl>)
where
    T: AnimationSampling,
{
    use resources::ControlState::*;
    // Update state with new duration
    // Check duration for end of sampling
    match control.state {
        // requested sampling => start interpolating
        Requested => (Running(Duration::from_secs(0)), None),
        // deferred start that should start now
        Deferred(dur) => (Running(dur.clone()), None),
        // abort sampling => end interpolating
        Abort => (Done, None),
        // sampling is running, update duration and check end condition
        Running(duration) => {
            let zero = Duration::from_secs(0);
            let current_dur =
                duration + secs_to_duration(time.delta_seconds() * control.rate_multiplier);
            let last_frame = sampler
                .input
                .last()
                .cloned()
                .map(secs_to_duration)
                .unwrap_or(zero.clone());
            // duration is past last frame of sampling
            if last_frame != zero && current_dur > last_frame {
                // Check end conditions
                match control.end {
                    // Do loop control
                    EndControl::Loop(Some(i)) if i <= 1 => (Done, Some(EndControl::Normal)),
                    EndControl::Loop(None) => {
                        (Running(next_duration(last_frame, current_dur).0), None)
                    }
                    EndControl::Loop(Some(i)) => {
                        let (next_dur, loops_removed) = next_duration(last_frame, current_dur);
                        let remaining_loops = i - loops_removed;
                        if remaining_loops <= 1 {
                            (Done, Some(EndControl::Normal))
                        } else {
                            (
                                Running(next_dur),
                                Some(EndControl::Loop(Some(remaining_loops))),
                            )
                        }
                    }
                    // All other end cases will be handled during sampling
                    _ => (Done, None),
                }
            } else {
                // last frame not reached, keep sampling
                (Running(current_dur), None)
            }
        }
        // Done and paused will be handled during sampling
        ref state => (state.clone(), None),
    }
}
fn update_duration_and_check < T > ( control : & SamplerControl < T > , sampler : & Sampler < T :: Primitive > , time : & Time , ) -> ( ControlState , Option < EndControl > ) where T : AnimationSampling , { use resources :: ControlState :: * ; // Update state with new duration // Check duration for end of sampling match control . state { // requested sampling => start interpolating Requested => ( Running ( Duration :: from_secs ( 0 ) ) , None ) , // deferred start that should start now Deferred ( dur ) => ( Running ( dur . clone ( ) ) , None ) , // abort sampling => end interpolating Abort => ( Done , None ) , // sampling is running, update duration and check end condition Running ( duration ) => { let zero = Duration :: from_secs ( 0 ) ; let current_dur = duration + secs_to_duration ( time . delta_seconds ( ) * control . rate_multiplier ) ; let last_frame = sampler . input . last ( ) . cloned ( ) . map ( secs_to_duration ) . unwrap_or ( zero . clone ( ) ) ; // duration is past last frame of sampling if last_frame != zero && current_dur > last_frame { // Check end conditions match control . end { // Do loop control EndControl :: Loop ( Some ( i ) ) if i <= 1 => ( Done , Some ( EndControl :: Normal ) ) , EndControl :: Loop ( None ) => { ( Running ( next_duration ( last_frame , current_dur ) . 0 ) , None ) } EndControl :: Loop ( Some ( i ) ) => { let ( next_dur , loops_removed ) = next_duration ( last_frame , current_dur ) ; let remaining_loops = i - loops_removed ; if remaining_loops <= 1 { ( Done , Some ( EndControl :: Normal ) ) } else { ( Running ( next_dur ) , Some ( EndControl :: Loop ( Some ( remaining_loops ) ) ) , ) } } // All other end cases will be handled during sampling _ => ( Done , None ) , } } else { // last frame not reached, keep sampling ( Running ( current_dur ) , None ) } } // Done and paused will be handled during sampling ref state => ( state . clone ( ) , None ) , } }
Update durations, check if the sampler is finished, start new samplers, and check for aborted
samplers.
Update durations check if the sampler is finished start new samplers and check for aborted samplers .
control
&SamplerControl<T>
sampler
&Sampler<T::Primitive>
time
&Time
Will return the new state of the sampling, and optionally a new end control state (for looping)
Will return the new state of the sampling and optionally a new end control state ( for looping )
control
&SamplerControl<T>
sampler control object
sampler control object
sampler
&Sampler<T::Primitive>
sampler reference from control
sampler reference from control
time
&Time
now
synchronized `Instant` for the current frame
synchronized ` Instant ` for the current frame