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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 */
38 // t: current time, b: begInnIng value, c: change In value, d: duration
39 jQuery.easing['jswing'] = jQuery.easing['swing'];
41 jQuery.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 });
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 */