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   1 <html><head><title>/home/edward/gitlive/roojs1/Roo/lib/Easing.js</title><link rel="stylesheet" type="text/css" href="../../css/highlight-js.css"/></head><body class="highlightpage"><code class="jsdoc-pretty"><span class="jsdoc-comment">/*
   2  * Portions of this file are based on pieces of Yahoo User Interface Library
   3  * Copyright (c) 2007, Yahoo! Inc. All rights reserved.
   4  * YUI licensed under the BSD License:
   5  * http://developer.yahoo.net/yui/license.txt
   6  * &lt;script type=&quot;text/javascript&quot;&gt;
   7  *
   8  */
   9 </span><span class="jsdoc-var">Roo.lib.Easing </span><span class="jsdoc-syntax">= {
  10
  11
  12     </span><span class="jsdoc-var">easeNone</span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">) {
  13         </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">/ </span><span class="jsdoc-var">d </span><span class="jsdoc-syntax">+ </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
  14     },
  15
  16
  17     </span><span class="jsdoc-var">easeIn</span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">) {
  18         </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">* (</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">/= </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">) * </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">+ </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
  19     },
  20
  21
  22     </span><span class="jsdoc-var">easeOut</span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">) {
  23         </span><span class="jsdoc-keyword">return </span><span class="jsdoc-syntax">-</span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">* (</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">/= </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">) * (</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">- 2) + </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
  24     },
  25
  26
  27     </span><span class="jsdoc-var">easeBoth</span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">) {
  28         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">((</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">/= </span><span class="jsdoc-var">d </span><span class="jsdoc-syntax">/ 2) &lt; 1) {
  29             </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">/ 2 * </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">+ </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
  30         }
  31
  32         </span><span class="jsdoc-keyword">return </span><span class="jsdoc-syntax">-</span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">/ 2 * ((--</span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">) * (</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">- 2) - 1) + </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
  33     },
  34
  35
  36     </span><span class="jsdoc-var">easeInStrong</span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">) {
  37         </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">* (</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">/= </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">) * </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">+ </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
  38     },
  39
  40
  41     </span><span class="jsdoc-var">easeOutStrong</span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">) {
  42         </span><span class="jsdoc-keyword">return </span><span class="jsdoc-syntax">-</span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">* ((</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">/ </span><span class="jsdoc-var">d </span><span class="jsdoc-syntax">- 1) * </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">- 1) + </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
  43     },
  44
  45
  46     </span><span class="jsdoc-var">easeBothStrong</span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">) {
  47         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">((</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">/= </span><span class="jsdoc-var">d </span><span class="jsdoc-syntax">/ 2) &lt; 1) {
  48             </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">/ 2 * </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">+ </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
  49         }
  50
  51         </span><span class="jsdoc-keyword">return </span><span class="jsdoc-syntax">-</span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">/ 2 * ((</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">-= 2) * </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">- 2) + </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
  52     },
  53
  54
  55
  56     </span><span class="jsdoc-var">elasticIn</span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">a</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">p</span><span class="jsdoc-syntax">) {
  57         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">== 0) {
  58             </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
  59         }
  60         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">((</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">/= </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">) == 1) {
  61             </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">b </span><span class="jsdoc-syntax">+ </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">;
  62         }
  63         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(!</span><span class="jsdoc-var">p</span><span class="jsdoc-syntax">) {
  64             </span><span class="jsdoc-var">p </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">d </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">.3</span><span class="jsdoc-syntax">;
  65         }
  66
  67         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(!</span><span class="jsdoc-var">a </span><span class="jsdoc-syntax">|| </span><span class="jsdoc-var">a </span><span class="jsdoc-syntax">&lt; </span><span class="jsdoc-var">Math.abs</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">)) {
  68             </span><span class="jsdoc-var">a </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">;
  69             </span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">s </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">p </span><span class="jsdoc-syntax">/ 4;
  70         }
  71         </span><span class="jsdoc-keyword">else </span><span class="jsdoc-syntax">{
  72             </span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">s </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">p </span><span class="jsdoc-syntax">/ (2 * </span><span class="jsdoc-var">Math.PI</span><span class="jsdoc-syntax">) * </span><span class="jsdoc-var">Math.asin</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">/ </span><span class="jsdoc-var">a</span><span class="jsdoc-syntax">);
  73         }
  74
  75         </span><span class="jsdoc-keyword">return </span><span class="jsdoc-syntax">-(</span><span class="jsdoc-var">a </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">Math.pow</span><span class="jsdoc-syntax">(2, 10 * (</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">-= 1)) * </span><span class="jsdoc-var">Math.sin</span><span class="jsdoc-syntax">((</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">d </span><span class="jsdoc-syntax">- </span><span class="jsdoc-var">s</span><span class="jsdoc-syntax">) * (2 * </span><span class="jsdoc-var">Math.PI</span><span class="jsdoc-syntax">) / </span><span class="jsdoc-var">p</span><span class="jsdoc-syntax">)) + </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
  76     },
  77
  78
  79     </span><span class="jsdoc-var">elasticOut</span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">a</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">p</span><span class="jsdoc-syntax">) {
  80         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">== 0) {
  81             </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
  82         }
  83         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">((</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">/= </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">) == 1) {
  84             </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">b </span><span class="jsdoc-syntax">+ </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">;
  85         }
  86         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(!</span><span class="jsdoc-var">p</span><span class="jsdoc-syntax">) {
  87             </span><span class="jsdoc-var">p </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">d </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">.3</span><span class="jsdoc-syntax">;
  88         }
  89
  90         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(!</span><span class="jsdoc-var">a </span><span class="jsdoc-syntax">|| </span><span class="jsdoc-var">a </span><span class="jsdoc-syntax">&lt; </span><span class="jsdoc-var">Math.abs</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">)) {
  91             </span><span class="jsdoc-var">a </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">;
  92             </span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">s </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">p </span><span class="jsdoc-syntax">/ 4;
  93         }
  94         </span><span class="jsdoc-keyword">else </span><span class="jsdoc-syntax">{
  95             </span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">s </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">p </span><span class="jsdoc-syntax">/ (2 * </span><span class="jsdoc-var">Math.PI</span><span class="jsdoc-syntax">) * </span><span class="jsdoc-var">Math.asin</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">/ </span><span class="jsdoc-var">a</span><span class="jsdoc-syntax">);
  96         }
  97
  98         </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">a </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">Math.pow</span><span class="jsdoc-syntax">(2, -10 * </span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">) * </span><span class="jsdoc-var">Math.sin</span><span class="jsdoc-syntax">((</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">d </span><span class="jsdoc-syntax">- </span><span class="jsdoc-var">s</span><span class="jsdoc-syntax">) * (2 * </span><span class="jsdoc-var">Math.PI</span><span class="jsdoc-syntax">) / </span><span class="jsdoc-var">p</span><span class="jsdoc-syntax">) + </span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">+ </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
  99     },
 100
 101
 102     </span><span class="jsdoc-var">elasticBoth</span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">a</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">p</span><span class="jsdoc-syntax">) {
 103         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">== 0) {
 104             </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
 105         }
 106
 107         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">((</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">/= </span><span class="jsdoc-var">d </span><span class="jsdoc-syntax">/ 2) == 2) {
 108             </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">b </span><span class="jsdoc-syntax">+ </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">;
 109         }
 110
 111         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(!</span><span class="jsdoc-var">p</span><span class="jsdoc-syntax">) {
 112             </span><span class="jsdoc-var">p </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">d </span><span class="jsdoc-syntax">* (</span><span class="jsdoc-var">.3 </span><span class="jsdoc-syntax">* 1.5);
 113         }
 114
 115         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(!</span><span class="jsdoc-var">a </span><span class="jsdoc-syntax">|| </span><span class="jsdoc-var">a </span><span class="jsdoc-syntax">&lt; </span><span class="jsdoc-var">Math.abs</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">)) {
 116             </span><span class="jsdoc-var">a </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">;
 117             </span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">s </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">p </span><span class="jsdoc-syntax">/ 4;
 118         }
 119         </span><span class="jsdoc-keyword">else </span><span class="jsdoc-syntax">{
 120             </span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">s </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">p </span><span class="jsdoc-syntax">/ (2 * </span><span class="jsdoc-var">Math.PI</span><span class="jsdoc-syntax">) * </span><span class="jsdoc-var">Math.asin</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">/ </span><span class="jsdoc-var">a</span><span class="jsdoc-syntax">);
 121         }
 122
 123         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">&lt; 1) {
 124             </span><span class="jsdoc-keyword">return </span><span class="jsdoc-syntax">-</span><span class="jsdoc-var">.5 </span><span class="jsdoc-syntax">* (</span><span class="jsdoc-var">a </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">Math.pow</span><span class="jsdoc-syntax">(2, 10 * (</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">-= 1)) *
 125                           </span><span class="jsdoc-var">Math.sin</span><span class="jsdoc-syntax">((</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">d </span><span class="jsdoc-syntax">- </span><span class="jsdoc-var">s</span><span class="jsdoc-syntax">) * (2 * </span><span class="jsdoc-var">Math.PI</span><span class="jsdoc-syntax">) / </span><span class="jsdoc-var">p</span><span class="jsdoc-syntax">)) + </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
 126         }
 127         </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">a </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">Math.pow</span><span class="jsdoc-syntax">(2, -10 * (</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">-= 1)) *
 128                </span><span class="jsdoc-var">Math.sin</span><span class="jsdoc-syntax">((</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">d </span><span class="jsdoc-syntax">- </span><span class="jsdoc-var">s</span><span class="jsdoc-syntax">) * (2 * </span><span class="jsdoc-var">Math.PI</span><span class="jsdoc-syntax">) / </span><span class="jsdoc-var">p</span><span class="jsdoc-syntax">) * </span><span class="jsdoc-var">.5 </span><span class="jsdoc-syntax">+ </span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">+ </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
 129     },
 130
 131
 132
 133     </span><span class="jsdoc-var">backIn</span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">s</span><span class="jsdoc-syntax">) {
 134         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(</span><span class="jsdoc-keyword">typeof </span><span class="jsdoc-var">s </span><span class="jsdoc-syntax">== </span><span class="jsdoc-string">'undefined'</span><span class="jsdoc-syntax">) {
 135             </span><span class="jsdoc-var">s </span><span class="jsdoc-syntax">= 1.70158;
 136         }
 137         </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">* (</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">/= </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">) * </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* ((</span><span class="jsdoc-var">s </span><span class="jsdoc-syntax">+ 1) * </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">- </span><span class="jsdoc-var">s</span><span class="jsdoc-syntax">) + </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
 138     },
 139
 140
 141     </span><span class="jsdoc-var">backOut</span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">s</span><span class="jsdoc-syntax">) {
 142         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(</span><span class="jsdoc-keyword">typeof </span><span class="jsdoc-var">s </span><span class="jsdoc-syntax">== </span><span class="jsdoc-string">'undefined'</span><span class="jsdoc-syntax">) {
 143             </span><span class="jsdoc-var">s </span><span class="jsdoc-syntax">= 1.70158;
 144         }
 145         </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">* ((</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">/ </span><span class="jsdoc-var">d </span><span class="jsdoc-syntax">- 1) * </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* ((</span><span class="jsdoc-var">s </span><span class="jsdoc-syntax">+ 1) * </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">+ </span><span class="jsdoc-var">s</span><span class="jsdoc-syntax">) + 1) + </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
 146     },
 147
 148
 149     </span><span class="jsdoc-var">backBoth</span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">s</span><span class="jsdoc-syntax">) {
 150         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(</span><span class="jsdoc-keyword">typeof </span><span class="jsdoc-var">s </span><span class="jsdoc-syntax">== </span><span class="jsdoc-string">'undefined'</span><span class="jsdoc-syntax">) {
 151             </span><span class="jsdoc-var">s </span><span class="jsdoc-syntax">= 1.70158;
 152         }
 153
 154         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">((</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">/= </span><span class="jsdoc-var">d </span><span class="jsdoc-syntax">/ 2 ) &lt; 1) {
 155             </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">/ 2 * (</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* (((</span><span class="jsdoc-var">s </span><span class="jsdoc-syntax">*= (1.525)) + 1) * </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">- </span><span class="jsdoc-var">s</span><span class="jsdoc-syntax">)) + </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
 156         }
 157         </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">/ 2 * ((</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">-= 2) * </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* (((</span><span class="jsdoc-var">s </span><span class="jsdoc-syntax">*= (1.525)) + 1) * </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">+ </span><span class="jsdoc-var">s</span><span class="jsdoc-syntax">) + 2) + </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
 158     },
 159
 160
 161     </span><span class="jsdoc-var">bounceIn</span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">) {
 162         </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">- </span><span class="jsdoc-var">Roo.lib.Easing.bounceOut</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">d </span><span class="jsdoc-syntax">- </span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">, 0, </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">) + </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
 163     },
 164
 165
 166     </span><span class="jsdoc-var">bounceOut</span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">) {
 167         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">((</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">/= </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">) &lt; (1 / 2.75)) {
 168             </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">* (7.5625 * </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">) + </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
 169         } </span><span class="jsdoc-keyword">else if </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">&lt; (2 / 2.75)) {
 170             </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">* (7.5625 * (</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">-= (1.5 / 2.75)) * </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">+ </span><span class="jsdoc-var">.75</span><span class="jsdoc-syntax">) + </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
 171         } </span><span class="jsdoc-keyword">else if </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">&lt; (2.5 / 2.75)) {
 172             </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">* (7.5625 * (</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">-= (2.25 / 2.75)) * </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">+ </span><span class="jsdoc-var">.9375</span><span class="jsdoc-syntax">) + </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
 173         }
 174         </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">* (7.5625 * (</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">-= (2.625 / 2.75)) * </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">+ </span><span class="jsdoc-var">.984375</span><span class="jsdoc-syntax">) + </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
 175     },
 176
 177
 178     </span><span class="jsdoc-var">bounceBoth</span><span class="jsdoc-syntax">: </span><span class="jsdoc-keyword">function </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">) {
 179         </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">&lt; </span><span class="jsdoc-var">d </span><span class="jsdoc-syntax">/ 2) {
 180             </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">Roo.lib.Easing.bounceIn</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* 2, 0, </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">) * </span><span class="jsdoc-var">.5 </span><span class="jsdoc-syntax">+ </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
 181         }
 182         </span><span class="jsdoc-keyword">return </span><span class="jsdoc-var">Roo.lib.Easing.bounceOut</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* 2 - </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">, 0, </span><span class="jsdoc-var">c</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">d</span><span class="jsdoc-syntax">) * </span><span class="jsdoc-var">.5 </span><span class="jsdoc-syntax">+ </span><span class="jsdoc-var">c </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">.5 </span><span class="jsdoc-syntax">+ </span><span class="jsdoc-var">b</span><span class="jsdoc-syntax">;
 183     }
 184 };</span></code></body></html>