StepPosition

Where the jumps of a steps() easing happen, as in CSS.

Import

use helpers4::animation::StepPosition;

Cargo feature animation (enabled by default). To compile only this module:

cargo add helpers4 --no-default-features --features animation

or in Cargo.toml:

[dependencies]
helpers4 = { version = "0.0.9", default-features = false, features = ["animation"] }

Definition

pub enum StepPosition {
    /// The first jump happens at the start (CSS `jump-start`, or `start`).
    JumpStart,
    /// The last jump happens at the end, so the first value lasts a whole step (CSS `jump-end`,
    /// or `end`). The default.
    #[default]
    JumpEnd,
    /// No jump at either end: `0` and `1` are each held for a step (CSS `jump-none`).
    JumpNone,
    /// A jump at both ends, so neither `0` nor `1` is held (CSS `jump-both`).
    JumpBoth,
}

Examples

use helpers4::animation::{Easing, StepPosition};

let four_frames = Easing::steps(4, StepPosition::JumpEnd);
assert_eq!(four_frames.map(|e| e.at(0.3)), Some(0.25));
let jump_first = Easing::steps(4, StepPosition::JumpStart);
assert_eq!(jump_first.map(|e| e.at(0.3)), Some(0.5));

Source

src/animation/step_position.rs