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Easing

proof_engine::tween::easing

Enum Easing

pub enum Easing {
Show 41 variants    Linear,
    EaseInQuad,
    EaseOutQuad,
    EaseInOutQuad,
    EaseInCubic,
    EaseOutCubic,
    EaseInOutCubic,
    EaseInQuart,
    EaseOutQuart,
    EaseInOutQuart,
    EaseInQuint,
    EaseOutQuint,
    EaseInOutQuint,
    EaseInSine,
    EaseOutSine,
    EaseInOutSine,
    EaseInExpo,
    EaseOutExpo,
    EaseInOutExpo,
    EaseInCirc,
    EaseOutCirc,
    EaseInOutCirc,
    EaseInBack,
    EaseOutBack,
    EaseInOutBack,
    EaseInElastic,
    EaseOutElastic,
    EaseInOutElastic,
    EaseInBounce,
    EaseOutBounce,
    EaseInOutBounce,
    SmoothStep,
    SmootherStep,
    Step,
    EaseOutLinear,
    Hermite {
        p0: f32,
        m0: f32,
        p1: f32,
        m1: f32,
    },
    Power(f32),
    Sigmoid {
        k: f32,
    },
    Spring {
        stiffness: f32,
        damping: f32,
    },
    Parabola,
    Flash,
}

Expand description

An easing function — transforms normalized time t ∈ [0, 1] → output ∈ [0, 1].

For typical usage, In = slow start, Out = slow end, InOut = slow at both ends.

Variants§

Linear

EaseInQuad

EaseOutQuad

EaseInOutQuad

EaseInCubic

EaseOutCubic

EaseInOutCubic

EaseInQuart

EaseOutQuart

EaseInOutQuart

EaseInQuint

EaseOutQuint

EaseInOutQuint

EaseInSine

EaseOutSine

EaseInOutSine

EaseInExpo

EaseOutExpo

EaseInOutExpo

EaseInCirc

EaseOutCirc

EaseInOutCirc

EaseInBack

EaseOutBack

EaseInOutBack

EaseInElastic

EaseOutElastic

EaseInOutElastic

EaseInBounce

EaseOutBounce

EaseInOutBounce

SmoothStep

Smooth step: 3t² - 2t³ (zero derivative at endpoints).

SmootherStep

Smoother step: 6t⁵ - 15t⁴ + 10t³ (Perlin’s improved smoothstep).

Step

Step at threshold 0.5 (instantaneous jump).

EaseOutLinear

Instant-in, linear-out.

Hermite

Hermite cubic through two tangents.

Fields

§p0: f32

§m0: f32

§p1: f32

§m1: f32

Power(f32)

Custom power: t^n.

Sigmoid

Sigmoid (logistic) curve.

Fields

§k: f32

Spring

Spring easing (underdamped oscillation to rest).

Fields

§stiffness: f32

§damping: f32

Parabola

Parabolic arc (projectile).

Flash

Flash: instant full, then linear decay.

Implementations§

impl Easing

pub fn apply(&self, t: f32) -> f32

Apply the easing function to normalized time t ∈ [0, 1].

pub fn derivative(&self, t: f32) -> f32

Return the approximate derivative dE/dt at t using central differences.

pub fn name(&self) -> &'static str

Name for debug display.

pub fn all_named() -> &'static [Easing]

All named easings (excludes parameterized variants).

Trait Implementations§

impl Clone for Easing

fn clone(&self) -> Easing

Returns a duplicate of the value. Read more

1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

impl Debug for Easing

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

impl PartialEq for Easing

fn eq(&self, other: &Easing) -> bool

Tests for self and other values to be equal, and is used by ==.

1.0.0 · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Easing

impl StructuralPartialEq for Easing

Auto Trait Implementations§

impl Freeze for Easing

impl RefUnwindSafe for Easing

impl Send for Easing

impl Sync for Easing

impl Unpin for Easing

impl UnsafeUnpin for Easing

impl UnwindSafe for Easing

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<S> FromSample<S> for S

fn from_sample_(s: S) -> S

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> ToSample<U> for T
where U: FromSample<T>,

fn to_sample_(self) -> U

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

impl<S, T> Duplex<S> for T
where T: FromSample<S> + ToSample<S>,