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https://j.gamersky.com/g/jquery.easing.1.3.js

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1/*
2 * jQuery Easing v1.3 - http://gsgd.co.uk/sandbox/jquery/easing/
3 *
4 * Uses the built in easing capabilities added In jQuery 1.1
5 * to offer multiple easing options
6 *
7 * TERMS OF USE - jQuery Easing
8 * 
9 * Open source under the BSD License. 
10 * 
11 * Copyright © 2008 George McGinley Smith
12 * All rights reserved.
13 * 
14 * Redistribution and use in source and binary forms, with or without modification, 
15 * are permitted provided that the following conditions are met:
16 * 
17 * Redistributions of source code must retain the above copyright notice, this list of 
18 * conditions and the following disclaimer.
19 * Redistributions in binary form must reproduce the above copyright notice, this list 
20 * of conditions and the following disclaimer in the documentation and/or other materials 
21 * provided with the distribution.
22 * 
23 * Neither the name of the author nor the names of contributors may be used to endorse 
24 * or promote products derived from this software without specific prior written permission.
25 * 
26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 
27 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
28 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
29 *  COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
30 *  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
31 *  GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
32 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
33 *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 
34 * OF THE POSSIBILITY OF SUCH DAMAGE. 
35 *
36*/
37
38// t: current time, b: begInnIng value, c: change In value, d: duration
39jQuery.easing['jswing'] = jQuery.easing['swing'];
40
41jQuery.extend( jQuery.easing,
42{
43  def: 'easeOutQuad',
44  swing: function (x, t, b, c, d) {
45    //alert(jQuery.easing.default);
46    return jQuery.easing[jQuery.easing.def](x, t, b, c, d);
47  },
48  easeInQuad: function (x, t, b, c, d) {
49    return c*(t/=d)*t + b;
50  },
51  easeOutQuad: function (x, t, b, c, d) {
52    return -c *(t/=d)*(t-2) + b;
53  },
54  easeInOutQuad: function (x, t, b, c, d) {
55    if ((t/=d/2) < 1) return c/2*t*t + b;
56    return -c/2 * ((--t)*(t-2) - 1) + b;
57  },
58  easeInCubic: function (x, t, b, c, d) {
59    return c*(t/=d)*t*t + b;
60  },
61  easeOutCubic: function (x, t, b, c, d) {
62    return c*((t=t/d-1)*t*t + 1) + b;
63  },
64  easeInOutCubic: function (x, t, b, c, d) {
65    if ((t/=d/2) < 1) return c/2*t*t*t + b;
66    return c/2*((t-=2)*t*t + 2) + b;
67  },
68  easeInQuart: function (x, t, b, c, d) {
69    return c*(t/=d)*t*t*t + b;
70  },
71  easeOutQuart: function (x, t, b, c, d) {
72    return -c * ((t=t/d-1)*t*t*t - 1) + b;
73  },
74  easeInOutQuart: function (x, t, b, c, d) {
75    if ((t/=d/2) < 1) return c/2*t*t*t*t + b;
76    return -c/2 * ((t-=2)*t*t*t - 2) + b;
77  },
78  easeInQuint: function (x, t, b, c, d) {
79    return c*(t/=d)*t*t*t*t + b;
80  },
81  easeOutQuint: function (x, t, b, c, d) {
82    return c*((t=t/d-1)*t*t*t*t + 1) + b;
83  },
84  easeInOutQuint: function (x, t, b, c, d) {
85    if ((t/=d/2) < 1) return c/2*t*t*t*t*t + b;
86    return c/2*((t-=2)*t*t*t*t + 2) + b;
87  },
88  easeInSine: function (x, t, b, c, d) {
89    return -c * Math.cos(t/d * (Math.PI/2)) + c + b;
90  },
91  easeOutSine: function (x, t, b, c, d) {
92    return c * Math.sin(t/d * (Math.PI/2)) + b;
93  },
94  easeInOutSine: function (x, t, b, c, d) {
95    return -c/2 * (Math.cos(Math.PI*t/d) - 1) + b;
96  },
97  easeInExpo: function (x, t, b, c, d) {
98    return (t==0) ? b : c * Math.pow(2, 10 * (t/d - 1)) + b;
99  },
100  easeOutExpo: function (x, t, b, c, d) {
101    return (t==d) ? b+c : c * (-Math.pow(2, -10 * t/d) + 1) + b;
102  },
103  easeInOutExpo: function (x, t, b, c, d) {
104    if (t==0) return b;
105    if (t==d) return b+c;
106    if ((t/=d/2) < 1) return c/2 * Math.pow(2, 10 * (t - 1)) + b;
107    return c/2 * (-Math.pow(2, -10 * --t) + 2) + b;
108  },
109  easeInCirc: function (x, t, b, c, d) {
110    return -c * (Math.sqrt(1 - (t/=d)*t) - 1) + b;
111  },
112  easeOutCirc: function (x, t, b, c, d) {
113    return c * Math.sqrt(1 - (t=t/d-1)*t) + b;
114  },
115  easeInOutCirc: function (x, t, b, c, d) {
116    if ((t/=d/2) < 1) return -c/2 * (Math.sqrt(1 - t*t) - 1) + b;
117    return c/2 * (Math.sqrt(1 - (t-=2)*t) + 1) + b;
118  },
119  easeInElastic: function (x, t, b, c, d) {
120    var s=1.70158;var p=0;var a=c;
121    if (t==0) return b;  if ((t/=d)==1) return b+c;  if (!p) p=d*.3;
122    if (a < Math.abs(c)) { a=c; var s=p/4; }
123    else var s = p/(2*Math.PI) * Math.asin (c/a);
124    return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
125  },
126  easeOutElastic: function (x, t, b, c, d) {
127    var s=1.70158;var p=0;var a=c;
128    if (t==0) return b;  if ((t/=d)==1) return b+c;  if (!p) p=d*.3;
129    if (a < Math.abs(c)) { a=c; var s=p/4; }
130    else var s = p/(2*Math.PI) * Math.asin (c/a);
131    return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) + c + b;
132  },
133  easeInOutElastic: function (x, t, b, c, d) {
134    var s=1.70158;var p=0;var a=c;
135    if (t==0) return b;  if ((t/=d/2)==2) return b+c;  if (!p) p=d*(.3*1.5);
136    if (a < Math.abs(c)) { a=c; var s=p/4; }
137    else var s = p/(2*Math.PI) * Math.asin (c/a);
138    if (t < 1) return -.5*(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
139    return a*Math.pow(2,-10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )*.5 + c + b;
140  },
141  easeInBack: function (x, t, b, c, d, s) {
142    if (s == undefined) s = 1.70158;
143    return c*(t/=d)*t*((s+1)*t - s) + b;
144  },
145  easeOutBack: function (x, t, b, c, d, s) {
146    if (s == undefined) s = 1.70158;
147    return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
148  },
149  easeInOutBack: function (x, t, b, c, d, s) {
150    if (s == undefined) s = 1.70158; 
151    if ((t/=d/2) < 1) return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b;
152    return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b;
153  },
154  easeInBounce: function (x, t, b, c, d) {
155    return c - jQuery.easing.easeOutBounce (x, d-t, 0, c, d) + b;
156  },
157  easeOutBounce: function (x, t, b, c, d) {
158    if ((t/=d) < (1/2.75)) {
159      return c*(7.5625*t*t) + b;
160    } else if (t < (2/2.75)) {
161      return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b;
162    } else if (t < (2.5/2.75)) {
163      return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b;
164    } else {
165      return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b;
166    }
167  },
168  easeInOutBounce: function (x, t, b, c, d) {
169    if (t < d/2) return jQuery.easing.easeInBounce (x, t*2, 0, c, d) * .5 + b;
170    return jQuery.easing.easeOutBounce (x, t*2-d, 0, c, d) * .5 + c*.5 + b;
171  }
172});
173
174/*
175 *
176 * TERMS OF USE - EASING EQUATIONS
177 * 
178 * Open source under the BSD License. 
179 * 
180 * Copyright © 2001 Robert Penner
181 * All rights reserved.
182 * 
183 * Redistribution and use in source and binary forms, with or without modification, 
184 * are permitted provided that the following conditions are met:
185 * 
186 * Redistributions of source code must retain the above copyright notice, this list of 
187 * conditions and the following disclaimer.
188 * Redistributions in binary form must reproduce the above copyright notice, this list 
189 * of conditions and the following disclaimer in the documentation and/or other materials 
190 * provided with the distribution.
191 * 
192 * Neither the name of the author nor the names of contributors may be used to endorse 
193 * or promote products derived from this software without specific prior written permission.
194 * 
195 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 
196 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
197 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
198 *  COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
199 *  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
200 *  GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
201 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
202 *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 
203 * OF THE POSSIBILITY OF SUCH DAMAGE. 
204 *
205 */

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