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onefastsnail on 05/24/12


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jquery easing


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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
  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. */
  206.  
  207.  
  208. /* example usage
  209.  
  210. $(element).slideUp({ duration: 1000, easing: method, complete: callback});
  211.  
  212. */

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