1 stable release

1.0.2 Nov 29, 2023

#27 in #easing

MIT/Apache

10KB
282 lines

simple-easing2

This package contains a set of simple easing functions.

Note: this is a fork of https://gitlab.com/chpio/simple-easing. Makes all functions inlined, adds a #[must_use] attr, applies rustfmt and clippy fixes.


lib.rs:

This package contains a set of simple easing functions. That consume a standardised time attribute in the range between 0.0 and 1.0, that represent the progress of a transition. 0.0 being the beginning, 1.0 the end.

They return a value between 0.0 and 1.0 (it might exceed the 0..=1 range temporarily for a bounce effect). The returned value can be used to interpolate between the initial (0.0) and the final (1.0) transition state, allowing for a "more natural" feel of a transition by accelerating and decelerating at certain points, depending on the easing function used.

Visit easings.net to see visualisations of the different easing functions.

All easing functions have the same signature ((f32) -> f32) and can be easily stored as fn pointers.

use simple_easing::linear;
let easing: fn(f32) -> f32 = linear;
assert_eq!(easing(1.0), 1.0);

No runtime deps