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@gamestdio/easing

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  • License MIT

Collection of easing equations for JavaScript / TypeScript

Package Exports

  • @gamestdio/easing

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (@gamestdio/easing) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

@gamestdio/easing

This is a grab-bag of Robert Penner's easing equations, most of the code from glsl-easings. Pull requests for optimizations are welcome.

Usage

NPM

Each easing has its own file which can be required individually. The entry point also exports all eases with camelCase, so require('eases/expo-in-out') becomes require('eases').expoInOut.

Full list of eases:

import { backInOut } from './back-in-out';
import { backIn } from './back-in';
import { backOut } from './back-out';
import { bounceInOut } from './bounce-in-out';
import { bounceIn } from './bounce-in';
import { bounceOut } from './bounce-out';
import { circInOut } from './circ-in-out';
import { circIn } from './circ-in';
import { circOut } from './circ-out';
import { cubicInOut } from './cubic-in-out';
import { cubicIn } from './cubic-in';
import { cubicOut } from './cubic-out';
import { elasticInOut } from './elastic-in-out';
import { elasticIn } from './elastic-in';
import { elasticOut } from './elastic-out';
import { expoInOut } from './expo-in-out';
import { expoIn } from './expo-in';
import { expoOut } from './expo-out';
import { linear } from './linear';
import { quadInOut } from './quad-in-out';
import { quadIn } from './quad-in';
import { quadOut } from './quad-out';
import { quartInOut } from './quart-in-out';
import { quartIn } from './quart-in';
import { quartOut } from './quart-out';
import { quintInOut } from './quint-in-out';
import { quintIn } from './quint-in';
import { quintOut } from './quint-out';
import { sineInOut } from './sine-in-out';
import { sineIn } from './sine-in';
import { sineOut } from './sine-out';

All easing functions only remap a time value, and all have the same signature.

v = ease(t)

Where t is typically a value between 0 and 1, and it returns a new float that has been eased.

License

MIT, see LICENSE.md for details.