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jquery.easing.1.3.js 7.9KB

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