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<div class="span8">
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<div id="main">
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<h1 class="page-title">Class: QuadTree</h1>
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<section>
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<header>
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<h2>
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<span class="ancestors"><a href="Phaser.html">Phaser</a>.</span>
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QuadTree
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</h2>
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<div class="class-description"><p>A QuadTree implementation. The original code was a conversion of the Java code posted to GameDevTuts. However I've tweaked
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it massively to add node indexing, removed lots of temp. var creation and significantly increased performance as a result. Original version at <a href="https://github.com/timohausmann/quadtree-js/">https://github.com/timohausmann/quadtree-js/</a></p></div>
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<article>
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<div class="container-overview">
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<dt>
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<h4 class="name" id="QuadTree"><span class="type-signature"></span>new QuadTree<span class="signature">(physicsManager, x, y, width, height, maxObjects, maxLevels, level)</span><span class="type-signature"></span></h4>
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</dt>
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<dd>
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<div class="description">
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<p>QuadTree Constructor</p>
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</div>
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<h5>Parameters:</h5>
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<table class="params table table-striped">
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<thead>
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<tr>
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<th>Name</th>
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<th>Type</th>
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<th class="last">Description</th>
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</tr>
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</thead>
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<tbody>
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<td class="name"><code>physicsManager</code></td>
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<td class="type">
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<span class="param-type">Description</span>
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</td>
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<td class="description last"><p>Description.</p></td>
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</tr>
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<tr>
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<td class="name"><code>x</code></td>
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<td class="type">
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<span class="param-type">Description</span>
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</td>
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<td class="description last"><p>Description.</p></td>
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</tr>
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<tr>
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<td class="name"><code>y</code></td>
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<td class="type">
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<span class="param-type">Description</span>
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</td>
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<td class="description last"><p>Description.</p></td>
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</tr>
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<tr>
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<td class="name"><code>width</code></td>
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<td class="type">
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<span class="param-type">number</span>
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</td>
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<td class="description last"><p>The width of your game in game pixels.</p></td>
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</tr>
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<tr>
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<td class="name"><code>height</code></td>
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<td class="type">
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<span class="param-type">number</span>
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</td>
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<td class="description last"><p>The height of your game in game pixels.</p></td>
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</tr>
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<tr>
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<td class="name"><code>maxObjects</code></td>
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<td class="type">
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<span class="param-type">number</span>
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</td>
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<td class="description last"><p>Description.</p></td>
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</tr>
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<tr>
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<td class="name"><code>maxLevels</code></td>
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<td class="type">
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<span class="param-type">number</span>
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</td>
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<td class="description last"><p>Description.</p></td>
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</tr>
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<tr>
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<td class="name"><code>level</code></td>
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<td class="type">
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<span class="param-type">number</span>
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</td>
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<td class="description last"><p>Description.</p></td>
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</tr>
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</tbody>
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</table>
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<dl class="details">
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|
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<dt class="tag-source">Source:</dt>
|
|
<dd class="tag-source"><ul class="dummy"><li>
|
|
<a href="QuadTree.js.html">math/QuadTree.js</a>, <a href="QuadTree.js.html#sunlight-1-line-60">line 60</a>
|
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</li></ul></dd>
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</dl>
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</dd>
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</div>
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<h3 class="subsection-title">Methods</h3>
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<dl>
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<dt>
|
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<h4 class="name" id="clear"><span class="type-signature"></span>clear<span class="signature">()</span><span class="type-signature"></span></h4>
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</dt>
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<dd>
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<div class="description">
|
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<p>/*
|
|
Clear the quadtree.</p>
|
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</div>
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<dl class="details">
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<dt class="tag-source">Source:</dt>
|
|
<dd class="tag-source"><ul class="dummy"><li>
|
|
<a href="QuadTree.js.html">math/QuadTree.js</a>, <a href="QuadTree.js.html#sunlight-1-line-246">line 246</a>
|
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</li></ul></dd>
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</dl>
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</dd>
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<dt>
|
|
<h4 class="name" id="getIndex"><span class="type-signature"></span>getIndex<span class="signature">(rect)</span><span class="type-signature"> → {number}</span></h4>
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</dt>
|
|
<dd>
|
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<div class="description">
|
|
<p>/*
|
|
Determine which node the object belongs to.</p>
|
|
</div>
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|
<h5>Parameters:</h5>
|
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|
|
<table class="params table table-striped">
|
|
<thead>
|
|
<tr>
|
|
|
|
<th>Name</th>
|
|
|
|
|
|
<th>Type</th>
|
|
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|
|
<th class="last">Description</th>
|
|
</tr>
|
|
</thead>
|
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|
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<tbody>
|
|
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|
|
<tr>
|
|
|
|
<td class="name"><code>rect</code></td>
|
|
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|
|
<td class="type">
|
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|
|
<span class="param-type">object</span>
|
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|
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</td>
|
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|
|
<td class="description last"><p>Description.</p></td>
|
|
</tr>
|
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|
</tbody>
|
|
</table>
|
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<dl class="details">
|
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|
|
<dt class="tag-source">Source:</dt>
|
|
<dd class="tag-source"><ul class="dummy"><li>
|
|
<a href="QuadTree.js.html">math/QuadTree.js</a>, <a href="QuadTree.js.html#sunlight-1-line-165">line 165</a>
|
|
</li></ul></dd>
|
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|
|
</dl>
|
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|
|
<h5>Returns:</h5>
|
|
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|
|
|
<div class="param-desc">
|
|
<p>index - Index of the subnode (0-3), or -1 if rect cannot completely fit within a subnode and is part of the parent node.</p>
|
|
</div>
|
|
|
|
|
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|
|
<dl>
|
|
<dt>
|
|
Type
|
|
</dt>
|
|
<dd>
|
|
|
|
<span class="param-type">number</span>
|
|
|
|
|
|
</dd>
|
|
</dl>
|
|
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|
|
|
|
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|
|
</dd>
|
|
|
|
|
|
|
|
<dt>
|
|
<h4 class="name" id="insert"><span class="type-signature"></span>insert<span class="signature">(body)</span><span class="type-signature"></span></h4>
|
|
|
|
|
|
</dt>
|
|
<dd>
|
|
|
|
|
|
<div class="description">
|
|
<p>/*
|
|
Insert the object into the node. If the node
|
|
exceeds the capacity, it will split and add all
|
|
objects to their corresponding subnodes.</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>body</code></td>
|
|
|
|
|
|
<td class="type">
|
|
|
|
|
|
<span class="param-type">object</span>
|
|
|
|
|
|
|
|
</td>
|
|
|
|
|
|
|
|
|
|
|
|
<td class="description last"><p>Description.</p></td>
|
|
</tr>
|
|
|
|
|
|
</tbody>
|
|
</table>
|
|
|
|
|
|
|
|
|
|
<dl class="details">
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<dt class="tag-source">Source:</dt>
|
|
<dd class="tag-source"><ul class="dummy"><li>
|
|
<a href="QuadTree.js.html">math/QuadTree.js</a>, <a href="QuadTree.js.html#sunlight-1-line-111">line 111</a>
|
|
</li></ul></dd>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
</dl>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
</dd>
|
|
|
|
|
|
|
|
<dt>
|
|
<h4 class="name" id="retrieve"><span class="type-signature"></span>retrieve<span class="signature">(rect)</span><span class="type-signature"> → {array}</span></h4>
|
|
|
|
|
|
</dt>
|
|
<dd>
|
|
|
|
|
|
<div class="description">
|
|
<p>/*
|
|
Return all objects that could collide with the given object.</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>rect</code></td>
|
|
|
|
|
|
<td class="type">
|
|
|
|
|
|
<span class="param-type">object</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="QuadTree.js.html">math/QuadTree.js</a>, <a href="QuadTree.js.html#sunlight-1-line-209">line 209</a>
|
|
</li></ul></dd>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
</dl>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<h5>Returns:</h5>
|
|
|
|
|
|
<div class="param-desc">
|
|
<ul>
|
|
<li>Array with all detected objects.</li>
|
|
</ul>
|
|
</div>
|
|
|
|
|
|
|
|
<dl>
|
|
<dt>
|
|
Type
|
|
</dt>
|
|
<dd>
|
|
|
|
<span class="param-type">array</span>
|
|
|
|
|
|
</dd>
|
|
</dl>
|
|
|
|
|
|
|
|
|
|
|
|
</dd>
|
|
|
|
|
|
|
|
<dt>
|
|
<h4 class="name" id="split"><span class="type-signature"></span>split<span class="signature">()</span><span class="type-signature"></span></h4>
|
|
|
|
|
|
</dt>
|
|
<dd>
|
|
|
|
|
|
<div class="description">
|
|
<p>/*
|
|
Split the node into 4 subnodes</p>
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<dl class="details">
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<dt class="tag-source">Source:</dt>
|
|
<dd class="tag-source"><ul class="dummy"><li>
|
|
<a href="QuadTree.js.html">math/QuadTree.js</a>, <a href="QuadTree.js.html#sunlight-1-line-88">line 88</a>
|
|
</li></ul></dd>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
</dl>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
</dd>
|
|
|
|
</dl>
|
|
|
|
|
|
|
|
|
|
|
|
</article>
|
|
|
|
</section>
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
<div class="clearfix"></div>
|
|
<footer>
|
|
|
|
|
|
<span class="copyright">
|
|
Phaser Copyright © 2012-2013 Photon Storm Ltd.
|
|
</span>
|
|
<br />
|
|
|
|
<span class="jsdoc-message">
|
|
Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.3.0-dev</a>
|
|
on Thu Nov 28 2013 15:56:32 GMT-0000 (GMT) using the <a href="https://github.com/terryweiss/docstrap">DocStrap template</a>.
|
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</span>
|
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</footer>
|
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</div>
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|
|
|
<div class="span3">
|
|
<div id="toc"></div>
|
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</div>
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<br clear="both">
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<script src="scripts/sunlight.js"></script>
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