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166 lines
4.0 KiB
166 lines
4.0 KiB
/*
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* jQuery Easing v1.4.1 - http://gsgd.co.uk/sandbox/jquery/easing/
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* Open source under the BSD License.
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* Copyright © 2008 George McGinley Smith
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* All rights reserved.
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* https://raw.github.com/gdsmith/jquery-easing/master/LICENSE
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*/
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(function (factory) {
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if (typeof define === "function" && define.amd) {
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define(['jquery'], function ($) {
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return factory($);
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});
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} else if (typeof module === "object" && typeof module.exports === "object") {
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exports = factory(require('jquery'));
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} else {
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factory(jQuery);
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}
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})(function($){
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// Preserve the original jQuery "swing" easing as "jswing"
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$.easing.jswing = $.easing.swing;
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var pow = Math.pow,
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sqrt = Math.sqrt,
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sin = Math.sin,
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cos = Math.cos,
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PI = Math.PI,
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c1 = 1.70158,
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c2 = c1 * 1.525,
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c3 = c1 + 1,
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c4 = ( 2 * PI ) / 3,
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c5 = ( 2 * PI ) / 4.5;
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// x is the fraction of animation progress, in the range 0..1
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function bounceOut(x) {
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var n1 = 7.5625,
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d1 = 2.75;
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if ( x < 1/d1 ) {
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return n1*x*x;
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} else if ( x < 2/d1 ) {
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return n1*(x-=(1.5/d1))*x + 0.75;
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} else if ( x < 2.5/d1 ) {
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return n1*(x-=(2.25/d1))*x + 0.9375;
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} else {
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return n1*(x-=(2.625/d1))*x + 0.984375;
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}
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}
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$.extend( $.easing,
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{
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def: 'easeOutQuad',
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swing: function (x) {
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return $.easing[$.easing.def](x);
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},
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easeInQuad: function (x) {
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return x * x;
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},
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easeOutQuad: function (x) {
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return 1 - ( 1 - x ) * ( 1 - x );
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},
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easeInOutQuad: function (x) {
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return x < 0.5 ?
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2 * x * x :
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1 - pow( -2 * x + 2, 2 ) / 2;
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},
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easeInCubic: function (x) {
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return x * x * x;
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},
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easeOutCubic: function (x) {
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return 1 - pow( 1 - x, 3 );
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},
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easeInOutCubic: function (x) {
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return x < 0.5 ?
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4 * x * x * x :
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1 - pow( -2 * x + 2, 3 ) / 2;
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},
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easeInQuart: function (x) {
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return x * x * x * x;
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},
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easeOutQuart: function (x) {
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return 1 - pow( 1 - x, 4 );
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},
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easeInOutQuart: function (x) {
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return x < 0.5 ?
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8 * x * x * x * x :
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1 - pow( -2 * x + 2, 4 ) / 2;
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},
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easeInQuint: function (x) {
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return x * x * x * x * x;
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},
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easeOutQuint: function (x) {
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return 1 - pow( 1 - x, 5 );
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},
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easeInOutQuint: function (x) {
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return x < 0.5 ?
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16 * x * x * x * x * x :
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1 - pow( -2 * x + 2, 5 ) / 2;
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},
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easeInSine: function (x) {
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return 1 - cos( x * PI/2 );
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},
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easeOutSine: function (x) {
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return sin( x * PI/2 );
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},
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easeInOutSine: function (x) {
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return -( cos( PI * x ) - 1 ) / 2;
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},
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easeInExpo: function (x) {
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return x === 0 ? 0 : pow( 2, 10 * x - 10 );
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},
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easeOutExpo: function (x) {
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return x === 1 ? 1 : 1 - pow( 2, -10 * x );
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},
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easeInOutExpo: function (x) {
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return x === 0 ? 0 : x === 1 ? 1 : x < 0.5 ?
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pow( 2, 20 * x - 10 ) / 2 :
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( 2 - pow( 2, -20 * x + 10 ) ) / 2;
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},
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easeInCirc: function (x) {
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return 1 - sqrt( 1 - pow( x, 2 ) );
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},
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easeOutCirc: function (x) {
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return sqrt( 1 - pow( x - 1, 2 ) );
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},
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easeInOutCirc: function (x) {
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return x < 0.5 ?
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( 1 - sqrt( 1 - pow( 2 * x, 2 ) ) ) / 2 :
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( sqrt( 1 - pow( -2 * x + 2, 2 ) ) + 1 ) / 2;
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},
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easeInElastic: function (x) {
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return x === 0 ? 0 : x === 1 ? 1 :
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-pow( 2, 10 * x - 10 ) * sin( ( x * 10 - 10.75 ) * c4 );
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},
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easeOutElastic: function (x) {
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return x === 0 ? 0 : x === 1 ? 1 :
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pow( 2, -10 * x ) * sin( ( x * 10 - 0.75 ) * c4 ) + 1;
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},
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easeInOutElastic: function (x) {
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return x === 0 ? 0 : x === 1 ? 1 : x < 0.5 ?
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-( pow( 2, 20 * x - 10 ) * sin( ( 20 * x - 11.125 ) * c5 )) / 2 :
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pow( 2, -20 * x + 10 ) * sin( ( 20 * x - 11.125 ) * c5 ) / 2 + 1;
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},
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easeInBack: function (x) {
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return c3 * x * x * x - c1 * x * x;
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},
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easeOutBack: function (x) {
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return 1 + c3 * pow( x - 1, 3 ) + c1 * pow( x - 1, 2 );
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},
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easeInOutBack: function (x) {
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return x < 0.5 ?
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( pow( 2 * x, 2 ) * ( ( c2 + 1 ) * 2 * x - c2 ) ) / 2 :
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( pow( 2 * x - 2, 2 ) *( ( c2 + 1 ) * ( x * 2 - 2 ) + c2 ) + 2 ) / 2;
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},
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easeInBounce: function (x) {
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return 1 - bounceOut( 1 - x );
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},
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easeOutBounce: bounceOut,
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easeInOutBounce: function (x) {
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return x < 0.5 ?
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( 1 - bounceOut( 1 - 2 * x ) ) / 2 :
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( 1 + bounceOut( 2 * x - 1 ) ) / 2;
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}
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});
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});
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