71 lines
2.0 KiB
JavaScript
71 lines
2.0 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = {
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/*
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* https://github.com/oblador/angular-scroll (duScrollDefaultEasing)
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*/
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defaultEasing: function defaultEasing(x) {
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if (x < 0.5) {
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return Math.pow(x * 2, 2) / 2;
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}
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return 1 - Math.pow((1 - x) * 2, 2) / 2;
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},
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/*
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* https://gist.github.com/gre/1650294
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*/
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// no easing, no acceleration
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linear: function linear(x) {
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return x;
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},
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// accelerating from zero velocity
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easeInQuad: function easeInQuad(x) {
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return x * x;
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},
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// decelerating to zero velocity
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easeOutQuad: function easeOutQuad(x) {
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return x * (2 - x);
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},
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// acceleration until halfway, then deceleration
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easeInOutQuad: function easeInOutQuad(x) {
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return x < .5 ? 2 * x * x : -1 + (4 - 2 * x) * x;
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},
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// accelerating from zero velocity
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easeInCubic: function easeInCubic(x) {
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return x * x * x;
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},
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// decelerating to zero velocity π
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easeOutCubic: function easeOutCubic(x) {
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return --x * x * x + 1;
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},
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// acceleration until halfway, then deceleration
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easeInOutCubic: function easeInOutCubic(x) {
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return x < .5 ? 4 * x * x * x : (x - 1) * (2 * x - 2) * (2 * x - 2) + 1;
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},
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// accelerating from zero velocity
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easeInQuart: function easeInQuart(x) {
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return x * x * x * x;
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},
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// decelerating to zero velocity
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easeOutQuart: function easeOutQuart(x) {
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return 1 - --x * x * x * x;
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},
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// acceleration until halfway, then deceleration
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easeInOutQuart: function easeInOutQuart(x) {
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return x < .5 ? 8 * x * x * x * x : 1 - 8 * --x * x * x * x;
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},
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// accelerating from zero velocity
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easeInQuint: function easeInQuint(x) {
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return x * x * x * x * x;
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},
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// decelerating to zero velocity
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easeOutQuint: function easeOutQuint(x) {
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return 1 + --x * x * x * x * x;
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},
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// acceleration until halfway, then deceleration
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easeInOutQuint: function easeInOutQuint(x) {
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return x < .5 ? 16 * x * x * x * x * x : 1 + 16 * --x * x * x * x * x;
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}
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}; |