@mongodb-js/mongodb-ui-components/build/shared/easing.js

A collection of frequently used functional UI components found on mongodb properties

"use strict";

module.exports = {
  // no easing, no acceleration
  linear: t => t,
  // accelerating from zero velocity
  easeInQuad: t => t * t,
  // decelerating to zero velocity
  easeOutQuad: t => t * (2 - t),
  // acceleration until halfway, then deceleration
  easeInOutQuad: t => t < 0.5 ? 2 * t * t : -1 + (4 - 2 * t) * t,
  // accelerating from zero velocity
  easeInCubic: t => t * t * t,
  // decelerating to zero velocity
  easeOutCubic: t => --t * t * t + 1,
  // acceleration until halfway, then deceleration
  easeInOutCubic: t => t < 0.5 ? 4 * t * t * t : (t - 1) * (2 * t - 2) * (2 * t - 2) + 1,
  // accelerating from zero velocity
  easeInQuart: t => t * t * t * t,
  // decelerating to zero velocity
  easeOutQuart: t => 1 - --t * t * t * t,
  // acceleration until halfway, then deceleration
  easeInOutQuart: t => t < 0.5 ? 8 * t * t * t * t : 1 - 8 * --t * t * t * t,
  // accelerating from zero velocity
  easeInQuint: t => t * t * t * t * t,
  // decelerating to zero velocity
  easeOutQuint: t => 1 + --t * t * t * t * t,
  // acceleration until halfway, then deceleration
  easeInOutQuint: t => t < 0.5 ? 16 * t * t * t * t * t : 1 + 16 * --t * t * t * t * t
};