Struct Beckon 

pub struct Beckon;

A control hint’s motion (crate::control_hints).

Implementations

impl Beckon

pub const GESTURE_PERIOD: Duration

One loop of the picture’s gesture.

pub const RESTING_PHASE: f64 = 0.7

Where in its loop the picture rests when motion may not loop: the gesture well under way, so the still picture says what to do.

pub const GESTURE_LOOPS: u32 = 3

How many times the picture shows its gesture before it rests: the last loop stops at Self::RESTING_PHASE, where it rests.

pub const COMPLETION: Duration

The whole acknowledgement, after which nothing is drawn.

pub fn arrival(age: Duration, motion: EffectiveMotion) -> Arrival

The card age after it began to arrive.

pub fn gesture_phase(age: Duration, motion: EffectiveMotion) -> f64

Where the picture is in its gesture’s loop, 0..1, age after the card began to arrive; Self::RESTING_PHASE where motion may not loop.

pub fn stroke(phase: f64, from: f64, to: f64) -> f64

How far one stroke of the picture’s gesture, which runs over from..to of its loop, has got at phase: 0..=1, starting and stopping gently as a hand does.

pub fn leaving(age: Duration, motion: EffectiveMotion) -> f32

The card going away unanswered, age after it began to: it fades where it is, at base (fast under reduced motion).

pub fn leaving_time(motion: EffectiveMotion) -> Duration

How long Self::leaving takes.

pub fn completion(age: Duration, motion: EffectiveMotion) -> Option<Completion>

The acknowledgement, age after the gesture was done; None once it is over.

pub fn next_frame( shown: Instant, now: Instant, motion: EffectiveMotion, ) -> Option<Instant>

When a hint shown since shown next needs a frame: soon while it arrives or its picture loops, never once it rests still.