phaser
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A fast, free and fun HTML5 Game Framework for Desktop and Mobile web browsers.
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<div class="row-fluid">
<div class="span8">
<div id="main">
<h1 class="page-title">Class: Rectangle</h1>
<section>
<header>
<h2>
<span class="ancestors"><a href="Phaser.html">Phaser</a>.</span>
Rectangle
</h2>
<div class="class-description"><p>Phaser.Rectangle</p></div>
</header>
<article>
<div class="container-overview">
<dt>
<h4 class="name" id="Rectangle"><span class="type-signature"></span>new Rectangle<span class="signature">(x, y, width, height)</span><span class="type-signature"></span></h4>
</dt>
<dd>
<div class="description">
<p>Creates a new Rectangle object with the top-left corner specified by the x and y parameters and with the specified width and height parameters.
If you call this function without parameters, a Rectangle with x, y, width, and height properties set to 0 is created.</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 x coordinate of the top-left corner of the Rectangle.</p></td>
</tr>
<tr>
<td class="name"><code>y</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The y coordinate of the top-left corner of the Rectangle.</p></td>
</tr>
<tr>
<td class="name"><code>width</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The width of the Rectangle. Should always be either zero or a positive value.</p></td>
</tr>
<tr>
<td class="name"><code>height</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The height of the Rectangle. Should always be either zero or a positive 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="Rectangle.js.html">geom/Rectangle.js</a>, <a href="Rectangle.js.html#sunlight-1-line-18">line 18</a>
</li></ul></dd>
</dl>
</dd>
</div>
<h3 class="subsection-title">Members</h3>
<dl>
<dt>
<h4 class="name" id="bottom"><span class="type-signature"></span>bottom<span class="type-signature"></span></h4>
</dt>
<dd>
<div class="description">
<p>The sum of the y and height properties. Changing the bottom property of a Rectangle object has no effect on the x, y and width properties, but does change the height property.</p>
</div>
<dl class="details">
<h5 class="subsection-title">Properties:</h5>
<dl>
<table class="props table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>bottom</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The sum of the y and height properties.</p></td>
</tr>
</tbody>
</table>
</dl>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Rectangle.js.html">geom/Rectangle.js</a>, <a href="Rectangle.js.html#sunlight-1-line-339">line 339</a>
</li></ul></dd>
</dl>
</dd>
<dt>
<h4 class="name" id="bottom"><span class="type-signature"></span>bottom<span class="type-signature"></span></h4>
</dt>
<dd>
<div class="description">
<p>The location of the Rectangles bottom right corner as a Point object.</p>
</div>
<dl class="details">
<h5 class="subsection-title">Properties:</h5>
<dl>
<table class="props table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>bottomRight</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Point.html">Phaser.Point</a></span>
</td>
<td class="description last"><p>Gets or sets the location of the Rectangles bottom right corner as a Point object.</p></td>
</tr>
</tbody>
</table>
</dl>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Rectangle.js.html">geom/Rectangle.js</a>, <a href="Rectangle.js.html#sunlight-1-line-360">line 360</a>
</li></ul></dd>
</dl>
</dd>
<dt>
<h4 class="name" id="centerX"><span class="type-signature"></span>centerX<span class="type-signature"></span></h4>
</dt>
<dd>
<div class="description">
<p>The x coordinate of the center of the Rectangle.</p>
</div>
<dl class="details">
<h5 class="subsection-title">Properties:</h5>
<dl>
<table class="props table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>centerX</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The x coordinate of the center of the Rectangle.</p></td>
</tr>
</tbody>
</table>
</dl>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Rectangle.js.html">geom/Rectangle.js</a>, <a href="Rectangle.js.html#sunlight-1-line-449">line 449</a>
</li></ul></dd>
</dl>
</dd>
<dt>
<h4 class="name" id="centerY"><span class="type-signature"></span>centerY<span class="type-signature"></span></h4>
</dt>
<dd>
<div class="description">
<p>The y coordinate of the center of the Rectangle.</p>
</div>
<dl class="details">
<h5 class="subsection-title">Properties:</h5>
<dl>
<table class="props table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>centerY</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The y coordinate of the center of the Rectangle.</p></td>
</tr>
</tbody>
</table>
</dl>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Rectangle.js.html">geom/Rectangle.js</a>, <a href="Rectangle.js.html#sunlight-1-line-466">line 466</a>
</li></ul></dd>
</dl>
</dd>
<dt>
<h4 class="name" id="empty"><span class="type-signature"></span>empty<span class="type-signature"></span></h4>
</dt>
<dd>
<div class="description">
<p>Determines whether or not this Rectangle object is empty. A Rectangle object is empty if its width or height is less than or equal to 0.
If set to true then all of the Rectangle properties are set to 0.</p>
</div>
<dl class="details">
<h5 class="subsection-title">Properties:</h5>
<dl>
<table class="props table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>empty</code></td>
<td class="type">
<span class="param-type">boolean</span>
</td>
<td class="description last"><p>Gets or sets the Rectangles empty state.</p></td>
</tr>
</tbody>
</table>
</dl>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Rectangle.js.html">geom/Rectangle.js</a>, <a href="Rectangle.js.html#sunlight-1-line-574">line 574</a>
</li></ul></dd>
</dl>
</dd>
<dt>
<h4 class="name" id="halfHeight"><span class="type-signature"><readonly> </span>halfHeight<span class="type-signature"></span></h4>
</dt>
<dd>
<dl class="details">
<h5 class="subsection-title">Properties:</h5>
<dl>
<table class="props table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>halfHeight</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>Half of the height of the Rectangle.</p></td>
</tr>
</tbody>
</table>
</dl>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Rectangle.js.html">geom/Rectangle.js</a>, <a href="Rectangle.js.html#sunlight-1-line-326">line 326</a>
</li></ul></dd>
</dl>
</dd>
<dt>
<h4 class="name" id="halfWidth"><span class="type-signature"><readonly> </span>halfWidth<span class="type-signature"></span></h4>
</dt>
<dd>
<dl class="details">
<h5 class="subsection-title">Properties:</h5>
<dl>
<table class="props table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>halfWidth</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>Half of the width of the Rectangle.</p></td>
</tr>
</tbody>
</table>
</dl>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Rectangle.js.html">geom/Rectangle.js</a>, <a href="Rectangle.js.html#sunlight-1-line-313">line 313</a>
</li></ul></dd>
</dl>
</dd>
<dt>
<h4 class="name" id="height"><span class="type-signature"></span>height<span class="type-signature"></span></h4>
</dt>
<dd>
<dl class="details">
<h5 class="subsection-title">Properties:</h5>
<dl>
<table class="props table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>height</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The height of the Rectangle. This value should never be set to a negative.</p></td>
</tr>
</tbody>
</table>
</dl>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Rectangle.js.html">geom/Rectangle.js</a>, <a href="Rectangle.js.html#sunlight-1-line-43">line 43</a>
</li></ul></dd>
</dl>
</dd>
<dt>
<h4 class="name" id="left"><span class="type-signature"></span>left<span class="type-signature"></span></h4>
</dt>
<dd>
<div class="description">
<p>The x coordinate of the left of the Rectangle. Changing the left property of a Rectangle object has no effect on the y and height properties. However it does affect the width property, whereas changing the x value does not affect the width property.</p>
</div>
<dl class="details">
<h5 class="subsection-title">Properties:</h5>
<dl>
<table class="props table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>left</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The x coordinate of the left of the Rectangle.</p></td>
</tr>
</tbody>
</table>
</dl>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Rectangle.js.html">geom/Rectangle.js</a>, <a href="Rectangle.js.html#sunlight-1-line-378">line 378</a>
</li></ul></dd>
</dl>
</dd>
<dt>
<h4 class="name" id="perimeter"><span class="type-signature"><readonly> </span>perimeter<span class="type-signature"></span></h4>
</dt>
<dd>
<div class="description">
<p>The perimeter size of the Rectangle. This is the sum of all 4 sides.</p>
</div>
<dl class="details">
<h5 class="subsection-title">Properties:</h5>
<dl>
<table class="props table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>perimeter</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The perimeter size of the Rectangle. This is the sum of all 4 sides.</p></td>
</tr>
</tbody>
</table>
</dl>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Rectangle.js.html">geom/Rectangle.js</a>, <a href="Rectangle.js.html#sunlight-1-line-435">line 435</a>
</li></ul></dd>
</dl>
</dd>
<dt>
<h4 class="name" id="randomX"><span class="type-signature"></span>randomX<span class="type-signature"></span></h4>
</dt>
<dd>
<div class="description">
<p>A random value between the left and right values (inclusive) of the Rectangle.</p>
</div>
<dl class="details">
<h5 class="subsection-title">Properties:</h5>
<dl>
<table class="props table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>randomX</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>A random value between the left and right values (inclusive) of the Rectangle.</p></td>
</tr>
</tbody>
</table>
</dl>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Rectangle.js.html">geom/Rectangle.js</a>, <a href="Rectangle.js.html#sunlight-1-line-483">line 483</a>
</li></ul></dd>
</dl>
</dd>
<dt>
<h4 class="name" id="randomY"><span class="type-signature"></span>randomY<span class="type-signature"></span></h4>
</dt>
<dd>
<div class="description">
<p>A random value between the top and bottom values (inclusive) of the Rectangle.</p>
</div>
<dl class="details">
<h5 class="subsection-title">Properties:</h5>
<dl>
<table class="props table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>randomY</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>A random value between the top and bottom values (inclusive) of the Rectangle.</p></td>
</tr>
</tbody>
</table>
</dl>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Rectangle.js.html">geom/Rectangle.js</a>, <a href="Rectangle.js.html#sunlight-1-line-499">line 499</a>
</li></ul></dd>
</dl>
</dd>
<dt>
<h4 class="name" id="right"><span class="type-signature"></span>right<span class="type-signature"></span></h4>
</dt>
<dd>
<div class="description">
<p>The sum of the x and width properties. Changing the right property of a Rectangle object has no effect on the x, y and height properties, however it does affect the width property.</p>
</div>
<dl class="details">
<h5 class="subsection-title">Properties:</h5>
<dl>
<table class="props table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>right</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The sum of the x and width properties.</p></td>
</tr>
</tbody>
</table>
</dl>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Rectangle.js.html">geom/Rectangle.js</a>, <a href="Rectangle.js.html#sunlight-1-line-400">line 400</a>
</li></ul></dd>
</dl>
</dd>
<dt>
<h4 class="name" id="top"><span class="type-signature"></span>top<span class="type-signature"></span></h4>
</dt>
<dd>
<div class="description">
<p>The y coordinate of the top of the Rectangle. Changing the top property of a Rectangle object has no effect on the x and width properties.
However it does affect the height property, whereas changing the y value does not affect the height property.</p>
</div>
<dl class="details">
<h5 class="subsection-title">Properties:</h5>
<dl>
<table class="props table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>top</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The y coordinate of the top of the Rectangle.</p></td>
</tr>
</tbody>
</table>
</dl>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Rectangle.js.html">geom/Rectangle.js</a>, <a href="Rectangle.js.html#sunlight-1-line-515">line 515</a>
</li></ul></dd>
</dl>
</dd>
<dt>
<h4 class="name" id="topLeft"><span class="type-signature"></span>topLeft<span class="type-signature"></span></h4>
</dt>
<dd>
<div class="description">
<p>The location of the Rectangles top left corner as a Point object.</p>
</div>
<dl class="details">
<h5 class="subsection-title">Properties:</h5>
<dl>
<table class="props table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>topLeft</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Point.html">Phaser.Point</a></span>
</td>
<td class="description last"><p>The location of the Rectangles top left corner as a Point object.</p></td>
</tr>
</tbody>
</table>
</dl>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Rectangle.js.html">geom/Rectangle.js</a>, <a href="Rectangle.js.html#sunlight-1-line-538">line 538</a>
</li></ul></dd>
</dl>
</dd>
<dt>
<h4 class="name" id="topRight"><span class="type-signature"></span>topRight<span class="type-signature"></span></h4>
</dt>
<dd>
<div class="description">
<p>The location of the Rectangles top right corner as a Point object.</p>
</div>
<dl class="details">
<h5 class="subsection-title">Properties:</h5>
<dl>
<table class="props table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>topRight</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Point.html">Phaser.Point</a></span>
</td>
<td class="description last"><p>The location of the Rectangles top left corner as a Point object.</p></td>
</tr>
</tbody>
</table>
</dl>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Rectangle.js.html">geom/Rectangle.js</a>, <a href="Rectangle.js.html#sunlight-1-line-556">line 556</a>
</li></ul></dd>
</dl>
</dd>
<dt>
<h4 class="name" id="volume"><span class="type-signature"><readonly> </span>volume<span class="type-signature"></span></h4>
</dt>
<dd>
<div class="description">
<p>The volume of the Rectangle derived from width * height.</p>
</div>
<dl class="details">
<h5 class="subsection-title">Properties:</h5>
<dl>
<table class="props table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>volume</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The volume of the Rectangle derived from width * height.</p></td>
</tr>
</tbody>
</table>
</dl>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Rectangle.js.html">geom/Rectangle.js</a>, <a href="Rectangle.js.html#sunlight-1-line-421">line 421</a>
</li></ul></dd>
</dl>
</dd>
<dt>
<h4 class="name" id="width"><span class="type-signature"></span>width<span class="type-signature"></span></h4>
</dt>
<dd>
<dl class="details">
<h5 class="subsection-title">Properties:</h5>
<dl>
<table class="props table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>width</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The width of the Rectangle. This value should never be set to a negative.</p></td>
</tr>
</tbody>
</table>
</dl>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Rectangle.js.html">geom/Rectangle.js</a>, <a href="Rectangle.js.html#sunlight-1-line-38">line 38</a>
</li></ul></dd>
</dl>
</dd>
<dt>
<h4 class="name" id="x"><span class="type-signature"></span>x<span class="type-signature"></span></h4>
</dt>
<dd>
<dl class="details">
<h5 class="subsection-title">Properties:</h5>
<dl>
<table class="props 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 x coordinate of the top-left corner of the Rectangle.</p></td>
</tr>
</tbody>
</table>
</dl>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Rectangle.js.html">geom/Rectangle.js</a>, <a href="Rectangle.js.html#sunlight-1-line-28">line 28</a>
</li></ul></dd>
</dl>
</dd>
<dt>
<h4 class="name" id="y"><span class="type-signature"></span>y<span class="type-signature"></span></h4>
</dt>
<dd>
<dl class="details">
<h5 class="subsection-title">Properties:</h5>
<dl>
<table class="props table table-striped">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>y</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>The y coordinate of the top-left corner of the Rectangle.</p></td>
</tr>
</tbody>
</table>
</dl>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Rectangle.js.html">geom/Rectangle.js</a>, <a href="Rectangle.js.html#sunlight-1-line-33">line 33</a>
</li></ul></dd>
</dl>
</dd>
</dl>
<h3 class="subsection-title">Methods</h3>
<dl>
<dt>
<h4 class="name" id="clone"><span class="type-signature"><static> </span>clone<span class="signature">(a, <span class="optional">output</span>)</span><span class="type-signature"> → {<a href="Phaser.Rectangle.html">Phaser.Rectangle</a>}</span></h4>
</dt>
<dd>
<div class="description">
<p>Returns a new Rectangle object with the same values for the x, y, width, and height properties as the original Rectangle object.</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>a</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Rectangle.html">Phaser.Rectangle</a></span>
</td>
<td class="attributes">
</td>
<td class="description last"><p>The Rectangle object.</p></td>
</tr>
<tr>
<td class="name"><code>output</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Rectangle.html">Phaser.Rectangle</a></span>
</td>
<td class="attributes">
<optional><br>
</td>
<td class="description last"><p>Optional Rectangle object. If given the values will be set into the object, otherwise a brand new Rectangle object will be created and returned.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="Rectangle.js.html">geom/Rectangle.js</a>, <a href="Rectangle.js.html#sunlight-1-line-653">line 653</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type"><a href="Phaser.Rectangle.html">Phaser.Rectangle</a></span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="contains"><span class="type-signature"><static> </span>contains<span class="signature">(a, x, y)</span><span class="type-signature"> → {boolean}</span></h4>
</dt>