jquery.easing.js (8301B)
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 39 jQuery.easing['jswing'] = jQuery.easing['swing']; 40 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 }); 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 */