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283 lines
5.0 KiB
283 lines
5.0 KiB
export { identity as linear } from '../internal/Component-cd97939e.mjs';
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/*
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Adapted from https://github.com/mattdesl
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Distributed under MIT License https://github.com/mattdesl/eases/blob/master/LICENSE.md
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*/
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/**
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* @param {number} t
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* @returns {number}
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*/
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function backInOut(t) {
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const s = 1.70158 * 1.525;
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if ((t *= 2) < 1) return 0.5 * (t * t * ((s + 1) * t - s));
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return 0.5 * ((t -= 2) * t * ((s + 1) * t + s) + 2);
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function backIn(t) {
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const s = 1.70158;
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return t * t * ((s + 1) * t - s);
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function backOut(t) {
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const s = 1.70158;
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return --t * t * ((s + 1) * t + s) + 1;
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function bounceOut(t) {
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const a = 4.0 / 11.0;
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const b = 8.0 / 11.0;
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const c = 9.0 / 10.0;
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const ca = 4356.0 / 361.0;
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const cb = 35442.0 / 1805.0;
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const cc = 16061.0 / 1805.0;
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const t2 = t * t;
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return t < a
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? 7.5625 * t2
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: t < b
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? 9.075 * t2 - 9.9 * t + 3.4
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: t < c
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? ca * t2 - cb * t + cc
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: 10.8 * t * t - 20.52 * t + 10.72;
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function bounceInOut(t) {
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return t < 0.5 ? 0.5 * (1.0 - bounceOut(1.0 - t * 2.0)) : 0.5 * bounceOut(t * 2.0 - 1.0) + 0.5;
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function bounceIn(t) {
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return 1.0 - bounceOut(1.0 - t);
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function circInOut(t) {
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if ((t *= 2) < 1) return -0.5 * (Math.sqrt(1 - t * t) - 1);
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return 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1);
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function circIn(t) {
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return 1.0 - Math.sqrt(1.0 - t * t);
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function circOut(t) {
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return Math.sqrt(1 - --t * t);
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function cubicInOut(t) {
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return t < 0.5 ? 4.0 * t * t * t : 0.5 * Math.pow(2.0 * t - 2.0, 3.0) + 1.0;
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function cubicIn(t) {
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return t * t * t;
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function cubicOut(t) {
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const f = t - 1.0;
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return f * f * f + 1.0;
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function elasticInOut(t) {
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return t < 0.5
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? 0.5 * Math.sin(((+13.0 * Math.PI) / 2) * 2.0 * t) * Math.pow(2.0, 10.0 * (2.0 * t - 1.0))
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: 0.5 *
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Math.sin(((-13.0 * Math.PI) / 2) * (2.0 * t - 1.0 + 1.0)) *
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Math.pow(2.0, -10.0 * (2.0 * t - 1.0)) +
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1.0;
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function elasticIn(t) {
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return Math.sin((13.0 * t * Math.PI) / 2) * Math.pow(2.0, 10.0 * (t - 1.0));
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function elasticOut(t) {
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return Math.sin((-13.0 * (t + 1.0) * Math.PI) / 2) * Math.pow(2.0, -10.0 * t) + 1.0;
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function expoInOut(t) {
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return t === 0.0 || t === 1.0
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? t
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: t < 0.5
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? +0.5 * Math.pow(2.0, 20.0 * t - 10.0)
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: -0.5 * Math.pow(2.0, 10.0 - t * 20.0) + 1.0;
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function expoIn(t) {
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return t === 0.0 ? t : Math.pow(2.0, 10.0 * (t - 1.0));
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function expoOut(t) {
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return t === 1.0 ? t : 1.0 - Math.pow(2.0, -10.0 * t);
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function quadInOut(t) {
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t /= 0.5;
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if (t < 1) return 0.5 * t * t;
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t--;
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return -0.5 * (t * (t - 2) - 1);
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function quadIn(t) {
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return t * t;
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function quadOut(t) {
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return -t * (t - 2.0);
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function quartInOut(t) {
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return t < 0.5 ? +8.0 * Math.pow(t, 4.0) : -8.0 * Math.pow(t - 1.0, 4.0) + 1.0;
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function quartIn(t) {
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return Math.pow(t, 4.0);
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function quartOut(t) {
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return Math.pow(t - 1.0, 3.0) * (1.0 - t) + 1.0;
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function quintInOut(t) {
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if ((t *= 2) < 1) return 0.5 * t * t * t * t * t;
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return 0.5 * ((t -= 2) * t * t * t * t + 2);
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function quintIn(t) {
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return t * t * t * t * t;
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function quintOut(t) {
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return --t * t * t * t * t + 1;
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function sineInOut(t) {
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return -0.5 * (Math.cos(Math.PI * t) - 1);
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function sineIn(t) {
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const v = Math.cos(t * Math.PI * 0.5);
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if (Math.abs(v) < 1e-14) return 1;
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else return 1 - v;
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}
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/**
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* @param {number} t
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* @returns {number}
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*/
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function sineOut(t) {
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return Math.sin((t * Math.PI) / 2);
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}
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export { backIn, backInOut, backOut, bounceIn, bounceInOut, bounceOut, circIn, circInOut, circOut, cubicIn, cubicInOut, cubicOut, elasticIn, elasticInOut, elasticOut, expoIn, expoInOut, expoOut, quadIn, quadInOut, quadOut, quartIn, quartInOut, quartOut, quintIn, quintInOut, quintOut, sineIn, sineInOut, sineOut };
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