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<title>Phaser Class: Math</title>
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<div id="main">
<h1 class="page-title">Class: Math</h1>
<section>
<header>
<h2>
<span class="ancestors"><a href="Phaser.html">Phaser</a>.</span>
Math
</h2>
</header>
<article>
<div class="container-overview">
<dt>
<h4 class="name" id="Math"><span class="type-signature"></span>new Math<span class="signature">()</span><span class="type-signature"></span></h4>
</dt>
<dd>
<div class="description">
<p>A collection of mathematical methods.</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-3">line 3</a>
</li></ul></dd>
</dl>
</dd>
</div>
<h3 class="subsection-title">Methods</h3>
<dl>
<dt>
<h4 class="name" id="angleBetween"><span class="type-signature"></span>angleBetween<span class="signature">(x1, y1, x2, y2)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Find the angle of a segment from (x1, y1) -&gt; (x2, y2).</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>x1</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>y1</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>x2</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>y2</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-329">line 329</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="angleBetweenPoints"><span class="type-signature"></span>angleBetweenPoints<span class="signature">(point1, point2)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Find the angle of a segment from (point1.x, point1.y) -&gt; (point2.x, point2.y).</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>point1</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Point.html">Phaser.Point</a></span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>point2</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Point.html">Phaser.Point</a></span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-358">line 358</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="angleBetweenPointsY"><span class="type-signature"></span>angleBetweenPointsY<span class="signature">(point1, point2)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Find the angle of a segment from (point1.x, point1.y) -&gt; (point2.x, point2.y).</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>point1</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Point.html">Phaser.Point</a></span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>point2</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Point.html">Phaser.Point</a></span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-369">line 369</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="angleBetweenY"><span class="type-signature"></span>angleBetweenY<span class="signature">(x1, y1, x2, y2)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Find the angle of a segment from (x1, y1) -&gt; (x2, y2).
Note that the difference between this method and Math.angleBetween is that this assumes the y coordinate travels
down the screen.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>x1</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>y1</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>x2</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>y2</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-342">line 342</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="angleLimit"><span class="type-signature"></span>angleLimit<span class="signature">(angle, min, max)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Keeps an angle value between the given min and max values.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>angle</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The angle value to check. Must be between -180 and +180.</p></td>
</tr>
<tr>
<td class="name"><code>min</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The minimum angle that is allowed (must be -180 or greater).</p></td>
</tr>
<tr>
<td class="name"><code>max</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The maximum angle that is allowed (must be 180 or less).</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-902">line 902</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>The new angle value, returns the same as the input angle if it was within bounds</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="average"><span class="type-signature"></span>average<span class="signature">()</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Averages all values passed to the function and returns the result. You can pass as many parameters as you like.</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-81">line 81</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>The average of all given values.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="bernstein"><span class="type-signature"></span>bernstein<span class="signature">(n, i)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>n</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>i</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1028">line 1028</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="bezierInterpolation"><span class="type-signature"></span>bezierInterpolation<span class="signature">(v, k)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>A Bezier Interpolation Method, mostly used by Phaser.Tween.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>v</code></td>
<td class="type">
<span class="param-type"><a href="Array.html">Array</a></span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>k</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-955">line 955</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="catmullRom"><span class="type-signature"></span>catmullRom<span class="signature">(p0, p1, p2, p3, t)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Description.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>p0</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>p1</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>p2</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>p3</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>t</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1060">line 1060</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="catmullRomInterpolation"><span class="type-signature"></span>catmullRomInterpolation<span class="signature">(v, k)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>A Catmull Rom Interpolation Method, mostly used by Phaser.Tween.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>v</code></td>
<td class="type">
<span class="param-type"><a href="Array.html">Array</a></span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>k</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-976">line 976</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="ceil"><span class="type-signature"></span>ceil<span class="signature">(value)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Round up to the next whole number. E.g. ceil(1.3) == 2, and ceil(-2.3) == -3.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>value</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>Any number.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1173">line 1173</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>The rounded value of that number.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="ceilTo"><span class="type-signature"></span>ceilTo<span class="signature">(value, place, base)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>value</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The value to round.</p></td>
</tr>
<tr>
<td class="name"><code>place</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The place to round to.</p></td>
</tr>
<tr>
<td class="name"><code>base</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The base to round in... default is 10 for decimal.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-299">line 299</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="chanceRoll"><span class="type-signature"></span>chanceRoll<span class="signature">(chance)</span><span class="type-signature"> &rarr; {boolean}</span></h4>
</dt>
<dd>
<div class="description">
<p>Generate a random bool result based on the chance value.</p>
<p>&lt;p&gt;
Returns true or false based on the chance value (default 50%). For example if you wanted a player to have a 30% chance
of getting a bonus, call chanceRoll(30) - true means the chance passed, false means it failed.
&lt;/p&gt;</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>chance</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The chance of receiving the value. A number between 0 and 100 (effectively 0% to 100%).</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-435">line 435</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>True if the roll passed, or false otherwise.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">boolean</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="clamp"><span class="type-signature"></span>clamp<span class="signature">(x, a, b)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Force a value within the boundaries of two values.
Clamp value to range &lt;a, b&gt;</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>x</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>a</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>b</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1316">line 1316</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="clampBottom"><span class="type-signature"></span>clampBottom<span class="signature">(x, a)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Clamp value to range &lt;a, inf).</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>x</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>a</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1332">line 1332</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="degToRad"><span class="type-signature"></span>degToRad<span class="signature">()</span><span class="type-signature"> &rarr; {function}</span></h4>
</dt>
<dd>
<div class="description">
<p>Convert degrees to radians.</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1452">line 1452</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">function</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="difference"><span class="type-signature"></span>difference<span class="signature">(a, b)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>a</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>b</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1078">line 1078</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="distance"><span class="type-signature"></span>distance<span class="signature">(x1, y1, x2, y2)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Returns the distance between the two given set of coordinates.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>x1</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>y1</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>x2</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>y2</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1262">line 1262</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>The distance between the two sets of coordinates.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="distancePow"><span class="type-signature"></span>distancePow<span class="signature">(x1, y1, x2, y2, <span class="optional">pow</span>)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Returns the distance between the two given set of coordinates at the power given.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Argument</th>
<th>Default</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>x1</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
</td>
<td class="default">
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>y1</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
</td>
<td class="default">
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>x2</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
</td>
<td class="default">
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>y2</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
</td>
<td class="default">
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>pow</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="default">
2
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1281">line 1281</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>The distance between the two sets of coordinates.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="distanceRounded"><span class="type-signature"></span>distanceRounded<span class="signature">(x1, y1, x2, y2)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Returns the rounded distance between the two given set of coordinates.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>x1</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>y1</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>x2</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>y2</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1300">line 1300</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>The distance between this Point object and the destination Point object.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="factorial"><span class="type-signature"></span>factorial<span class="signature">(value)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>value</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>the number you want to evaluate</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1038">line 1038</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="floor"><span class="type-signature"></span>floor<span class="signature">(Value)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Round down to the next whole number. E.g. floor(1.7) == 1, and floor(-2.7) == -2.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>Value</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>Any number.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1158">line 1158</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>The rounded value of that number.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="floorTo"><span class="type-signature"></span>floorTo<span class="signature">(value, place, base)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>value</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The value to round.</p></td>
</tr>
<tr>
<td class="name"><code>place</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The place to round to.</p></td>
</tr>
<tr>
<td class="name"><code>base</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The base to round in... default is 10 for decimal.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-281">line 281</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="fuzzyCeil"><span class="type-signature"></span>fuzzyCeil<span class="signature">(val, epsilon)</span><span class="type-signature"> &rarr; {boolean}</span></h4>
</dt>
<dd>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>val</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>epsilon</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-59">line 59</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>ceiling(val-&epsilon;)</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">boolean</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="fuzzyEqual"><span class="type-signature"></span>fuzzyEqual<span class="signature">(a, b, epsilon)</span><span class="type-signature"> &rarr; {boolean}</span></h4>
</dt>
<dd>
<div class="description">
<p>Two number are fuzzyEqual if their difference is less than &epsilon;.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>a</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>b</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>epsilon</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-20">line 20</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>True if |a-b|&lt;&epsilon;</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">boolean</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="fuzzyFloor"><span class="type-signature"></span>fuzzyFloor<span class="signature">(val, epsilon)</span><span class="type-signature"> &rarr; {boolean}</span></h4>
</dt>
<dd>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>val</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>epsilon</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-70">line 70</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>floor(val-&epsilon;)</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">boolean</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="fuzzyGreaterThan"><span class="type-signature"></span>fuzzyGreaterThan<span class="signature">(a, b, epsilon)</span><span class="type-signature"> &rarr; {boolean}</span></h4>
</dt>
<dd>
<div class="description">
<p>a is fuzzyGreaterThan b if it is more than b - &epsilon;.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>a</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>b</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>epsilon</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-46">line 46</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>True if a&gt;b+&epsilon;</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">boolean</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="fuzzyLessThan"><span class="type-signature"></span>fuzzyLessThan<span class="signature">(a, b, epsilon)</span><span class="type-signature"> &rarr; {boolean}</span></h4>
</dt>
<dd>
<div class="description">
<p>a is fuzzyLessThan b if it is less than b + &epsilon;.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>a</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>b</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>epsilon</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-33">line 33</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>True if a&lt;b+&epsilon;</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">boolean</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="getRandom"><span class="type-signature"></span>getRandom<span class="signature">(objects, startIndex, length)</span><span class="type-signature"> &rarr; {object}</span></h4>
</dt>
<dd>
<div class="description">
<p>Fetch a random entry from the given array.
Will return null if random selection is missing, or array has no entries.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>objects</code></td>
<td class="type">
<span class="param-type">array</span>
</td>
<td class="description last"><p>An array of objects.</p></td>
</tr>
<tr>
<td class="name"><code>startIndex</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>Optional offset off the front of the array. Default value is 0, or the beginning of the array.</p></td>
</tr>
<tr>
<td class="name"><code>length</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>Optional restriction on the number of values you want to randomly select from.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1088">line 1088</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>The random object that was selected.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">object</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="interpolateAngles"><span class="type-signature"></span>interpolateAngles<span class="signature">(a1, a2, weight, radians, ease)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Interpolate across the shortest arc between two angles.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>a1</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>Description.</p></td>
</tr>
<tr>
<td class="name"><code>a2</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>Description.</p></td>
</tr>
<tr>
<td class="name"><code>weight</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>Description.</p></td>
</tr>
<tr>
<td class="name"><code>radians</code></td>
<td class="type">
<span class="param-type">boolean</span>
</td>
<td class="description last"><p>True if angle sizes are expressed in radians.</p></td>
</tr>
<tr>
<td class="name"><code>ease</code></td>
<td class="type">
<span class="param-type">Description</span>
</td>
<td class="description last"><p>Description.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-433">line 433</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>interpolateAngles: function (a1, a2, weight, radians, ease) {</p>
<pre><code> if (typeof radians === &quot;undefined&quot;) { radians = true; }
if (typeof ease === &quot;undefined&quot;) { ease = null; }
a1 = this.normalizeAngle(a1, radians);
a2 = this.normalizeAngleToAnother(a2, a1, radians);
return (typeof ease === 'function') ? ease(weight, a1, a2 - a1, 1) : this.interpolateFloat(a1, a2, weight);
},</code></pre>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="interpolateFloat"><span class="type-signature"></span>interpolateFloat<span class="signature">(a, b, weight)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>A one dimensional linear interpolation of a value.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>a</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>b</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>weight</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-317">line 317</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="isEven"><span class="type-signature"></span>isEven<span class="signature">(n)</span><span class="type-signature"> &rarr; {boolean}</span></h4>
</dt>
<dd>
<div class="description">
<p>Returns true if the number given is even.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>n</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The number to check.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-748">line 748</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>True if the given number is even. False if the given number is odd.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">boolean</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="isOdd"><span class="type-signature"></span>isOdd<span class="signature">(n)</span><span class="type-signature"> &rarr; {boolean}</span></h4>
</dt>
<dd>
<div class="description">
<p>Returns true if the number given is odd.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>n</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The number to check.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-735">line 735</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>True if the given number is odd. False if the given number is even.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">boolean</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="limitValue"><span class="type-signature"></span>limitValue<span class="signature">(value, min, max)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Ensures the given value is between min and max inclusive.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>value</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The value to limit.</p></td>
</tr>
<tr>
<td class="name"><code>min</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The minimum the value can be.</p></td>
</tr>
<tr>
<td class="name"><code>max</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The maximum the value can be.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-708">line 708</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>The limited value.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="Linear"><span class="type-signature"></span>Linear<span class="signature">(p0, p1, t)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Description.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>p0</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>p1</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>t</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1016">line 1016</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="linearInterpolation"><span class="type-signature"></span>linearInterpolation<span class="signature">(v, k)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>A Linear Interpolation Method, mostly used by Phaser.Tween.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>v</code></td>
<td class="type">
<span class="param-type"><a href="Array.html">Array</a></span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>k</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-928">line 928</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="mapLinear"><span class="type-signature"></span>mapLinear<span class="signature">(x, a1, a2, b1, b2)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Linear mapping from range &lt;a1, a2&gt; to range &lt;b1, b2&gt;</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>x</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>the value to map</p></td>
</tr>
<tr>
<td class="name"><code>a1</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>first endpoint of the range &lt;a1, a2&gt;</p></td>
</tr>
<tr>
<td class="name"><code>a2</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>final endpoint of the range &lt;a1, a2&gt;</p></td>
</tr>
<tr>
<td class="name"><code>b1</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>first endpoint of the range &lt;b1, b2&gt;</p></td>
</tr>
<tr>
<td class="name"><code>b2</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>final endpoint of the range &lt;b1, b2&gt;</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1361">line 1361</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="max"><span class="type-signature"></span>max<span class="signature">()</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Updated version of Math.max that can be passed either an array of numbers or the numbers as parameters.</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-798">line 798</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>The largest value from those given.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="maxAdd"><span class="type-signature"></span>maxAdd<span class="signature">(value, amount, max-)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Adds the given amount to the value, but never lets the value go over the specified maximum.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>value</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The value to add the amount to.</p></td>
</tr>
<tr>
<td class="name"><code>amount</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The amount to add to the value.</p></td>
</tr>
<tr>
<td class="name"><code>max-</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The maximum the value is allowed to be.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-612">line 612</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="maxProperty"><span class="type-signature"></span>maxProperty<span class="signature">()</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Updated version of Math.max that can be passed a property and either an array of objects or the objects as parameters.
It will find the largest matching property value from the given objects.</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-857">line 857</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>The largest value from those given.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="min"><span class="type-signature"></span>min<span class="signature">()</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Updated version of Math.min that can be passed either an array of numbers or the numbers as parameters.
See <a href="http://jsperf.com/math-s-min-max-vs-homemade/5">http://jsperf.com/math-s-min-max-vs-homemade/5</a></p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-768">line 768</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>The lowest value from those given.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="minProperty"><span class="type-signature"></span>minProperty<span class="signature">()</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Updated version of Math.min that can be passed a property and either an array of objects or the objects as parameters.
It will find the lowest matching property value from the given objects.</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-827">line 827</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>The lowest value from those given.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="minSub"><span class="type-signature"></span>minSub<span class="signature">(value, amount, min)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Subtracts the given amount from the value, but never lets the value go below the specified minimum.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>value</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The base value.</p></td>
</tr>
<tr>
<td class="name"><code>amount</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The amount to subtract from the base value.</p></td>
</tr>
<tr>
<td class="name"><code>min</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The minimum the value is allowed to be.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-634">line 634</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>The new value.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="nearestAngleBetween"><span class="type-signature"></span>nearestAngleBetween<span class="signature">(a1, a2, radians)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Closest angle between two angles from a1 to a2 absolute value the return for exact angle</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>a1</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>a2</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>radians</code></td>
<td class="type">
<span class="param-type">boolean</span>
</td>
<td class="description last"><p>True if angle sizes are expressed in radians.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-431">line 431</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>nearestAngleBetween: function (a1, a2, radians) {</p>
<pre><code> if (typeof radians === &quot;undefined&quot;) { radians = true; }
var rd = (radians) ? Math.PI : 180;
a1 = this.normalizeAngle(a1, radians);
a2 = this.normalizeAngle(a2, radians);
if (a1 &lt; -rd / 2 &amp;&amp; a2 &gt; rd / 2)
{
a1 += rd * 2;
}
if (a2 &lt; -rd / 2 &amp;&amp; a1 &gt; rd / 2)
{
a2 += rd * 2;
}
return a2 - a1;
},</code></pre>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="normalizeAngle"><span class="type-signature"></span>normalizeAngle<span class="signature">(angleRad)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Normalizes an angle to the [0,2pi) range.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>angleRad</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The angle to normalize, in radians.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-390">line 390</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>Returns the angle, fit within the [0,2pi] range, in radians.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="normalizeLatitude"><span class="type-signature"></span>normalizeLatitude<span class="signature">(lat)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Normalizes a latitude to the [-90,90] range. Latitudes above 90 or below -90 are capped, not wrapped.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>lat</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The latitude to normalize, in degrees.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-403">line 403</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>Returns the latitude, fit within the [-90,90] range.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="normalizeLongitude"><span class="type-signature"></span>normalizeLongitude<span class="signature">(lng)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Normalizes a longitude to the [-180,180] range. Longitudes above 180 or below -180 are wrapped.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>lng</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The longitude to normalize, in degrees.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-413">line 413</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>Returns the longitude, fit within the [-180,180] range.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="numberArray"><span class="type-signature"></span>numberArray<span class="signature">(min, max)</span><span class="type-signature"> &rarr; {array}</span></h4>
</dt>
<dd>
<div class="description">
<p>Returns an Array containing the numbers from min to max and inclusive of both values.
If you need exclusive of max then see Phaser.Math.numberArrayEx.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>min</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The minimum value the array starts with.</p></td>
</tr>
<tr>
<td class="name"><code>max</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The maximum value the array contains.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-519">line 519</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>The array of number values.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">array</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="numberArrayStep"><span class="type-signature"></span>numberArrayStep<span class="signature">(<span class="optional">start</span>, end, <span class="optional">step</span>)</span><span class="type-signature"> &rarr; {<a href="Array.html">Array</a>}</span></h4>
</dt>
<dd>
<div class="description">
<p>Creates an array of numbers (positive and/or negative) progressing from
<code>start</code> up to but not including <code>end</code>. If <code>start</code> is less than <code>stop</code> a
zero-length range is created unless a negative <code>step</code> is specified.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Argument</th>
<th>Default</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>start</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="default">
0
</td>
<td class="description last"><p>The start of the range.</p></td>
</tr>
<tr>
<td class="name"><code>end</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
</td>
<td class="default">
</td>
<td class="description last"><p>The end of the range.</p></td>
</tr>
<tr>
<td class="name"><code>step</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="default">
1
</td>
<td class="description last"><p>The value to increment or decrement by.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-541">line 541</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>Returns the new array of numbers.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type"><a href="Array.html">Array</a></span>
</dd>
</dl>
<h5>Example</h5>
<pre class="sunlight-highlight-javascript">Phaser.Math.numberArrayStep(4);
// => [0, 1, 2, 3]
Phaser.Math.numberArrayStep(1, 5);
// => [1, 2, 3, 4]
Phaser.Math.numberArrayStep(0, 20, 5);
// => [0, 5, 10, 15]
Phaser.Math.numberArrayStep(0, -4, -1);
// => [0, -1, -2, -3]
Phaser.Math.numberArrayStep(1, 4, 0);
// => [1, 1, 1]
Phaser.Math.numberArrayStep(0);
// => []</pre>
</dd>
<dt>
<h4 class="name" id="percent"><span class="type-signature"></span>percent<span class="signature">(a, b, <span class="optional">base</span>)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Work out what percentage value a is of value b using the given base.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Argument</th>
<th>Default</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>a</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
</td>
<td class="default">
</td>
<td class="description last"><p>The value to work out the percentage for.</p></td>
</tr>
<tr>
<td class="name"><code>b</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
</td>
<td class="default">
</td>
<td class="description last"><p>The value you wish to get the percentage of.</p></td>
</tr>
<tr>
<td class="name"><code>base</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="default">
0
</td>
<td class="description last"><p>The base value.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1424">line 1424</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>The percentage a is of b, between 0 and 1.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="PI2"><span class="type-signature"></span>PI2<span class="signature">()</span><span class="type-signature"></span></h4>
</dt>
<dd>
<div class="description">
<p>= 2 &pi;</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-14">line 14</a>
</li></ul></dd>
</dl>
</dd>
<dt>
<h4 class="name" id="radToDeg"><span class="type-signature"></span>radToDeg<span class="signature">()</span><span class="type-signature"> &rarr; {function}</span></h4>
</dt>
<dd>
<div class="description">
<p>Convert degrees to radians.</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1470">line 1470</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">function</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="randomSign"><span class="type-signature"></span>randomSign<span class="signature">()</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Randomly returns either a 1 or -1.</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-723">line 723</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>1 or -1</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="removeRandom"><span class="type-signature"></span>removeRandom<span class="signature">(objects, startIndex, length)</span><span class="type-signature"> &rarr; {object}</span></h4>
</dt>
<dd>
<div class="description">
<p>Removes a random object from the given array and returns it.
Will return null if random selection is missing, or array has no entries.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>objects</code></td>
<td class="type">
<span class="param-type">array</span>
</td>
<td class="description last"><p>An array of objects.</p></td>
</tr>
<tr>
<td class="name"><code>startIndex</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>Optional offset off the front of the array. Default value is 0, or the beginning of the array.</p></td>
</tr>
<tr>
<td class="name"><code>length</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>Optional restriction on the number of values you want to randomly select from.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1122">line 1122</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>The random object that was removed.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">object</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="reverseAngle"><span class="type-signature"></span>reverseAngle<span class="signature">(angleRad)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Reverses an angle.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>angleRad</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The angle to reverse, in radians.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-380">line 380</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>Returns the reverse angle, in radians.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="roundTo"><span class="type-signature"></span>roundTo<span class="signature">(value, place, base)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Round to some place comparative to a 'base', default is 10 for decimal place.</p>
<p>'place' is represented by the power applied to 'base' to get that place
e.g.
2000/7 ~= 285.714285714285714285714 ~= (bin)100011101.1011011011011011</p>
<p>roundTo(2000/7,3) === 0
roundTo(2000/7,2) == 300
roundTo(2000/7,1) == 290
roundTo(2000/7,0) == 286
roundTo(2000/7,-1) == 285.7
roundTo(2000/7,-2) == 285.71
roundTo(2000/7,-3) == 285.714
roundTo(2000/7,-4) == 285.7143
roundTo(2000/7,-5) == 285.71429</p>
<p>roundTo(2000/7,3,2) == 288 -- 100100000
roundTo(2000/7,2,2) == 284 -- 100011100
roundTo(2000/7,1,2) == 286 -- 100011110
roundTo(2000/7,0,2) == 286 -- 100011110
roundTo(2000/7,-1,2) == 285.5 -- 100011101.1
roundTo(2000/7,-2,2) == 285.75 -- 100011101.11
roundTo(2000/7,-3,2) == 285.75 -- 100011101.11
roundTo(2000/7,-4,2) == 285.6875 -- 100011101.1011
roundTo(2000/7,-5,2) == 285.71875 -- 100011101.10111</p>
<p>Note what occurs when we round to the 3rd space (8ths place), 100100000, this is to be assumed
because we are rounding 100011.1011011011011011 which rounds up.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>value</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The value to round.</p></td>
</tr>
<tr>
<td class="name"><code>place</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The place to round to.</p></td>
</tr>
<tr>
<td class="name"><code>base</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The base to round in... default is 10 for decimal.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-234">line 234</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="shear"><span class="type-signature"></span>shear<span class="signature">(n)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>n</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-113">line 113</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>n mod 1</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="shift"><span class="type-signature"></span>shift<span class="signature">(stack)</span><span class="type-signature"> &rarr; {any}</span></h4>
</dt>
<dd>
<div class="description">
<p>Removes the top element from the stack and re-inserts it onto the bottom, then returns it.
The original stack is modified in the process. This effectively moves the position of the data from the start to the end of the table.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>stack</code></td>
<td class="type">
<span class="param-type">array</span>
</td>
<td class="description last"><p>The array to shift.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1225">line 1225</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>The shifted value.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">any</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="shuffleArray"><span class="type-signature"></span>shuffleArray<span class="signature">(array)</span><span class="type-signature"> &rarr; {array}</span></h4>
</dt>
<dd>
<div class="description">
<p>Shuffles the data in the given array into a new order</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>array</code></td>
<td class="type">
<span class="param-type">array</span>
</td>
<td class="description last"><p>The array to shuffle</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1242">line 1242</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>The array</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">array</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="sign"><span class="type-signature"></span>sign<span class="signature">(x)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>A value representing the sign of the value.
-1 for negative, +1 for positive, 0 if value is 0</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>x</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1410">line 1410</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="sinCosGenerator"><span class="type-signature"></span>sinCosGenerator<span class="signature">(length, sinAmplitude, cosAmplitude, frequency)</span><span class="type-signature"> &rarr; {<a href="Array.html">Array</a>}</span></h4>
</dt>
<dd>
<div class="description">
<p>Generate a sine and cosine table simultaneously and extremely quickly. Based on research by Franky of scene.at</p>
<p>&lt;p&gt;
The parameters allow you to specify the length, amplitude and frequency of the wave. Once you have called this function
you should get the results via getSinTable() and getCosTable(). This generator is fast enough to be used in real-time.
&lt;/p&gt;</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>length</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The length of the wave</p></td>
</tr>
<tr>
<td class="name"><code>sinAmplitude</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The amplitude to apply to the sine table (default 1.0) if you need values between say -+ 125 then give 125 as the value</p></td>
</tr>
<tr>
<td class="name"><code>cosAmplitude</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The amplitude to apply to the cosine table (default 1.0) if you need values between say -+ 125 then give 125 as the value</p></td>
</tr>
<tr>
<td class="name"><code>frequency</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The frequency of the sine and cosine table data</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1185">line 1185</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>Returns the sine table</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type"><a href="Array.html">Array</a></span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="smootherstep"><span class="type-signature"></span>smootherstep<span class="signature">(x, min, max)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Smootherstep function as detailed at <a href="http://en.wikipedia.org/wiki/Smoothstep">http://en.wikipedia.org/wiki/Smoothstep</a></p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>x</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>min</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>max</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1394">line 1394</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="smoothstep"><span class="type-signature"></span>smoothstep<span class="signature">(x, min, max)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Smoothstep function as detailed at <a href="http://en.wikipedia.org/wiki/Smoothstep">http://en.wikipedia.org/wiki/Smoothstep</a></p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>x</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>min</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>max</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1378">line 1378</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="snapTo"><span class="type-signature"></span>snapTo<span class="signature">(input, gap, <span class="optional">start</span>)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Snap a value to nearest grid slice, using rounding.</p>
<p>Example: if you have an interval gap of 5 and a position of 12... you will snap to 10 whereas 14 will snap to 15.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Argument</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>input</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
</td>
<td class="description last"><p>The value to snap.</p></td>
</tr>
<tr>
<td class="name"><code>gap</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
</td>
<td class="description last"><p>The interval gap of the grid.</p></td>
</tr>
<tr>
<td class="name"><code>start</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="description last"><p>Optional starting offset for gap.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-122">line 122</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="snapToCeil"><span class="type-signature"></span>snapToCeil<span class="signature">(input, gap, <span class="optional">start</span>)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Snap a value to nearest grid slice, using ceil.</p>
<p>Example: if you have an interval gap of 5 and a position of 12... you will snap to 15. As will 14 will snap to 15... but 16 will snap to 20.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Argument</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>input</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
</td>
<td class="description last"><p>The value to snap.</p></td>
</tr>
<tr>
<td class="name"><code>gap</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
</td>
<td class="description last"><p>The interval gap of the grid.</p></td>
</tr>
<tr>
<td class="name"><code>start</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="description last"><p>Optional starting offset for gap.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-174">line 174</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="snapToFloor"><span class="type-signature"></span>snapToFloor<span class="signature">(input, gap, <span class="optional">start</span>)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Snap a value to nearest grid slice, using floor.</p>
<p>Example: if you have an interval gap of 5 and a position of 12... you will snap to 10. As will 14 snap to 10... but 16 will snap to 15</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Argument</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>input</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
</td>
<td class="description last"><p>The value to snap.</p></td>
</tr>
<tr>
<td class="name"><code>gap</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
</td>
<td class="description last"><p>The interval gap of the grid.</p></td>
</tr>
<tr>
<td class="name"><code>start</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="description last"><p>Optional starting offset for gap.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-148">line 148</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="snapToInArray"><span class="type-signature"></span>snapToInArray<span class="signature">(input, arr, sort)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Snaps a value to the nearest value in an array.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>input</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>arr</code></td>
<td class="type">
<span class="param-type">array</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>sort</code></td>
<td class="type">
<span class="param-type">boolean</span>
</td>
<td class="description last"><p>True if the array needs to be sorted.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-201">line 201</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="truncate"><span class="type-signature"></span>truncate<span class="signature">(n)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>n</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-104">line 104</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="within"><span class="type-signature"></span>within<span class="signature">(a, b, tolerance)</span><span class="type-signature"> &rarr; {boolean}</span></h4>
</dt>
<dd>
<div class="description">
<p>Checks if two values are within the given tolerance of each other.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>a</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The first number to check</p></td>
</tr>
<tr>
<td class="name"><code>b</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The second number to check</p></td>
</tr>
<tr>
<td class="name"><code>tolerance</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The tolerance. Anything equal to or less than this is considered within the range.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-1346">line 1346</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>True if a is &lt;= tolerance of b.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">boolean</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="wrap"><span class="type-signature"></span>wrap<span class="signature">(value, min, max)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Ensures that the value always stays between min and max, by wrapping the value around.
max should be larger than min, or the function will return 0.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>value</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The value to wrap.</p></td>
</tr>
<tr>
<td class="name"><code>min</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The minimum the value is allowed to be.</p></td>
</tr>
<tr>
<td class="name"><code>max</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The maximum the value is allowed to be.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-656">line 656</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>The wrapped value.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="wrapAngle"><span class="type-signature"></span>wrapAngle<span class="signature">(angle, radians)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Keeps an angle value between -180 and +180.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>angle</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The angle value to check</p></td>
</tr>
<tr>
<td class="name"><code>radians</code></td>
<td class="type">
<span class="param-type">boolean</span>
</td>
<td class="description last"><p>True if angle is given in radians.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-887">line 887</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>The new angle value, returns the same as the input angle if it was within bounds.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="wrapValue"><span class="type-signature"></span>wrapValue<span class="signature">(value, amount, max)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Adds value to amount and ensures that the result always stays between 0 and max, by wrapping the value around.
Values must be positive integers, and are passed through Math.abs.</p>
</div>
<h5>Parameters:</h5>
<table class="params table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>value</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The value to add the amount to.</p></td>
</tr>
<tr>
<td class="name"><code>amount</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The amount to add to the value.</p></td>
</tr>
<tr>
<td class="name"><code>max</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The maximum the value is allowed to be.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Math.js.html">math/Math.js</a>, <a href="Math.js.html#sunlight-1-line-686">line 686</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>The wrapped value.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
</dd>
</dl>
</article>
</section>
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Phaser Copyright © 2012-2014 Photon Storm Ltd.
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