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photonstorm 9401755ab9 Phaser 2.4.1 docs.
2015-07-24 13:30:46 +01:00

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<!DOCTYPE html>
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<title>Phaser Class: Line</title>
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<a href="Phaser.Physics.Arcade.Body.html">Body</a>
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<a href="Phaser.Physics.Arcade.html#TilemapCollision">TilemapCollision</a>
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<a href="Phaser.Physics.Ninja.Circle.html">Circle</a>
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<a href="global.html#LEFT">LEFT</a>
</li>
<li class="class-depth-0">
<a href="global.html#LINE">LINE</a>
</li>
<li class="class-depth-0">
<a href="global.html#MATRIX">MATRIX</a>
</li>
<li class="class-depth-0">
<a href="global.html#NONE">NONE</a>
</li>
<li class="class-depth-0">
<a href="global.html#POINT">POINT</a>
</li>
<li class="class-depth-0">
<a href="global.html#POINTER">POINTER</a>
</li>
<li class="class-depth-0">
<a href="global.html#POLYGON">POLYGON</a>
</li>
<li class="class-depth-0">
<a href="global.html#RECTANGLE">RECTANGLE</a>
</li>
<li class="class-depth-0">
<a href="global.html#RENDERTEXTURE">RENDERTEXTURE</a>
</li>
<li class="class-depth-0">
<a href="global.html#RETROFONT">RETROFONT</a>
</li>
<li class="class-depth-0">
<a href="global.html#RIGHT">RIGHT</a>
</li>
<li class="class-depth-0">
<a href="global.html#ROPE">ROPE</a>
</li>
<li class="class-depth-0">
<a href="global.html#ROUNDEDRECTANGLE">ROUNDEDRECTANGLE</a>
</li>
<li class="class-depth-0">
<a href="global.html#scaleModes">scaleModes</a>
</li>
<li class="class-depth-0">
<a href="global.html#SPRITE">SPRITE</a>
</li>
<li class="class-depth-0">
<a href="global.html#SPRITEBATCH">SPRITEBATCH</a>
</li>
<li class="class-depth-0">
<a href="global.html#TEXT">TEXT</a>
</li>
<li class="class-depth-0">
<a href="global.html#TILEMAP">TILEMAP</a>
</li>
<li class="class-depth-0">
<a href="global.html#TILEMAPLAYER">TILEMAPLAYER</a>
</li>
<li class="class-depth-0">
<a href="global.html#TILESPRITE">TILESPRITE</a>
</li>
<li class="class-depth-0">
<a href="global.html#UP">UP</a>
</li>
<li class="class-depth-0">
<a href="global.html#VERSION">VERSION</a>
</li>
<li class="class-depth-0">
<a href="global.html#VIDEO">VIDEO</a>
</li>
<li class="class-depth-0">
<a href="global.html#WEBGL">WEBGL</a>
</li>
<li class="class-depth-0">
<a href="global.html#WEBGL_FILTER">WEBGL_FILTER</a>
</li>
</ul>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Core<b class="caret"></b></a>
<ul class="dropdown-menu ">
<li class="class-depth-1"><a href="Phaser.Game.html">Game</a></li>
<li class="class-depth-1"><a href="Phaser.Group.html">Group</a></li>
<li class="class-depth-1"><a href="Phaser.World.html">World</a></li>
<li class="class-depth-1"><a href="Phaser.Loader.html">Loader</a></li>
<li class="class-depth-1"><a href="Phaser.Cache.html">Cache</a></li>
<li class="class-depth-1"><a href="Phaser.Time.html">Time</a></li>
<li class="class-depth-1"><a href="Phaser.Camera.html">Camera</a></li>
<li class="class-depth-1"><a href="Phaser.StateManager.html">State Manager</a></li>
<li class="class-depth-1"><a href="Phaser.TweenManager.html">Tween Manager</a></li>
<li class="class-depth-1"><a href="Phaser.SoundManager.html">Sound Manager</a></li>
<li class="class-depth-1"><a href="Phaser.Input.html">Input Manager</a></li>
<li class="class-depth-1"><a href="Phaser.ScaleManager.html">Scale Manager</a></li>
</ul>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Game Objects<b class="caret"></b></a>
<ul class="dropdown-menu ">
<li class="class-depth-1"><a href="Phaser.GameObjectFactory.html">Factory (game.add)</a></li>
<li class="class-depth-1"><a href="Phaser.GameObjectCreator.html">Creator (game.make)</a></li>
<li class="class-depth-1"><a href="Phaser.Sprite.html">Sprite</a></li>
<li class="class-depth-1"><a href="Phaser.Image.html">Image</a></li>
<li class="class-depth-1"><a href="Phaser.Sound.html">Sound</a></li>
<li class="class-depth-1"><a href="Phaser.Video.html">Video</a></li>
<li class="class-depth-1"><a href="Phaser.Particles.Arcade.Emitter.html">Particle Emitter</a></li>
<li class="class-depth-1"><a href="Phaser.Particle.html">Particle</a></li>
<li class="class-depth-1"><a href="Phaser.Text.html">Text</a></li>
<li class="class-depth-1"><a href="Phaser.Tween.html">Tween</a></li>
<li class="class-depth-1"><a href="Phaser.BitmapText.html">BitmapText</a></li>
<li class="class-depth-1"><a href="Phaser.Tilemap.html">Tilemap</a></li>
<li class="class-depth-1"><a href="Phaser.BitmapData.html">BitmapData</a></li>
<li class="class-depth-1"><a href="Phaser.RetroFont.html">RetroFont</a></li>
<li class="class-depth-1"><a href="Phaser.Button.html">Button</a></li>
<li class="class-depth-1"><a href="Phaser.Animation.html">Animation</a></li>
<li class="class-depth-1"><a href="Phaser.Graphics.html">Graphics</a></li>
<li class="class-depth-1"><a href="Phaser.RenderTexture.html">RenderTexture</a></li>
<li class="class-depth-1"><a href="Phaser.TileSprite.html">TileSprite</a></li>
</ul>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Geometry<b class="caret"></b></a>
<ul class="dropdown-menu ">
<li class="class-depth-1"><a href="Phaser.Circle.html">Circle</a></li>
<li class="class-depth-1"><a href="Phaser.Ellipse.html">Ellipse</a></li>
<li class="class-depth-1"><a href="Phaser.Line.html">Line</a></li>
<li class="class-depth-1"><a href="Phaser.Matrix.html">Matrix</a></li>
<li class="class-depth-1"><a href="Phaser.Point.html">Point</a></li>
<li class="class-depth-1"><a href="Phaser.Polygon.html">Polygon</a></li>
<li class="class-depth-1"><a href="Phaser.Rectangle.html">Rectangle</a></li>
<li class="class-depth-1"><a href="Phaser.RoundedRectangle.html">Rounded Rectangle</a></li>
</ul>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Physics<b class="caret"></b></a>
<ul class="dropdown-menu ">
<li class="class-depth-1"><a href="Phaser.Physics.Arcade.html">Arcade Physics</a></li>
<li class="class-depth-2"><a href="Phaser.Physics.Arcade.Body.html">Body</a></li>
<li class="class-depth-1"><a href="Phaser.Physics.P2.html">P2 Physics</a></li>
<li class="class-depth-2"><a href="Phaser.Physics.P2.Body.html">Body</a></li>
<li class="class-depth-2"><a href="Phaser.Physics.P2.Spring.html">Spring</a></li>
<li class="class-depth-2"><a href="Phaser.Physics.P2.CollisionGroup.html">CollisionGroup</a></li>
<li class="class-depth-2"><a href="Phaser.Physics.P2.ContactMaterial.html">ContactMaterial</a></li>
<li class="class-depth-1"><a href="Phaser.Physics.Ninja.html">Ninja Physics</a></li>
<li class="class-depth-2"><a href="Phaser.Physics.Body.html">Body</a></li>
</ul>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Input<b class="caret"></b></a>
<ul class="dropdown-menu ">
<li class="class-depth-1"><a href="Phaser.InputHandler.html">Input Handler</a></li>
<li class="class-depth-1"><a href="Phaser.Pointer.html">Pointer</a></li>
<li class="class-depth-1"><a href="Phaser.DeviceButton.html">Device Button</a></li>
<li class="class-depth-1"><a href="Phaser.Mouse.html">Mouse</a></li>
<li class="class-depth-1"><a href="Phaser.Keyboard.html">Keyboard</a></li>
<li class="class-depth-1"><a href="Phaser.Key.html">Key</a></li>
<li class="class-depth-1"><a href="Phaser.Gamepad.html">Gamepad</a></li>
</ul>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Community<b class="caret"></b></a>
<ul class="dropdown-menu ">
<li class="class-depth-1"><a href="http://phaser.io">Phaser Web Site</a></li>
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<li class="class-depth-1"><a href="http://phaser.io/examples">Phaser Examples</a></li>
<li class="class-depth-1"><a href="https://github.com/photonstorm/phaser-plugins">Phaser Plugins</a></li>
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<li class="class-depth-1"><a href="http://stackoverflow.com/questions/tagged/phaser-framework">Stack Overflow</a></li>
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<li class="class-depth-1"><a href="https://www.codeandweb.com/texturepacker/phaser">Texture Packer</a></li>
</ul>
</li>
</ul>
</div>
</div>
<div class="row-fluid">
<div class="span8">
<div id="main">
<!--<h1 class="page-title">Class: Line</h1>-->
<section>
<header>
<h2>
<span class="ancestors"><a href="Phaser.html">Phaser</a>.</span>
Line
</h2>
</header>
<article>
<div class="container-overview">
<dt>
<h4 class="name "
id="Line"><span class="type-signature"></span>new Line<span class="signature">(<span class="optional">x1</span>, <span class="optional">y1</span>, <span class="optional">x2</span>, <span class="optional">y2</span>)</span><span class="type-signature"></span></h4>
</dt>
<dd>
<div class="description">
<p>Creates a new Line object with a start and an end point.</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">
&lt;optional><br>
</td>
<td class="default">
0
</td>
<td class="description last"><p>The x coordinate of the start of the line.</p></td>
</tr>
<tr>
<td class="name"><code>y1</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 y coordinate of the start of the line.</p></td>
</tr>
<tr>
<td class="name"><code>x2</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 x coordinate of the end of the line.</p></td>
</tr>
<tr>
<td class="name"><code>y2</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 y coordinate of the end of the line.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-17">line 17</a>
</dt>
</dl>
</dd>
</div>
<h3 class="subsection-title">Members</h3>
<dl>
<dt>
<h4 class="name "
id="angle"><span class="type-signature">&lt;readonly> </span>angle<span class="type-signature"> :number</span></h4>
</dt>
<dd>
<div class="description">
<p>Gets the angle of the line in radians.</p>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-308">line 308</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="bottom"><span class="type-signature">&lt;readonly> </span>bottom<span class="type-signature"> :number</span></h4>
</dt>
<dd>
<div class="description">
<p>Gets the bottom-most point of this line.</p>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-412">line 412</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="end"><span class="type-signature"></span>end<span class="type-signature"> :<a href="Phaser.Point.html">Phaser.Point</a></span></h4>
</dt>
<dd>
<div class="description">
<p>The end point of the line.</p>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-32">line 32</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="height"><span class="type-signature">&lt;readonly> </span>height<span class="type-signature"> :number</span></h4>
</dt>
<dd>
<div class="description">
<p>Gets the height of this bounds of this line.</p>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-438">line 438</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="left"><span class="type-signature">&lt;readonly> </span>left<span class="type-signature"> :number</span></h4>
</dt>
<dd>
<div class="description">
<p>Gets the left-most point of this line.</p>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-373">line 373</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="length"><span class="type-signature">&lt;readonly> </span>length<span class="type-signature"> :number</span></h4>
</dt>
<dd>
<div class="description">
<p>Gets the length of the line segment.</p>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-295">line 295</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="normalAngle"><span class="type-signature">&lt;readonly> </span>normalAngle<span class="type-signature"> :number</span></h4>
</dt>
<dd>
<div class="description">
<p>Gets the angle in radians of the normal of this line (line.angle - 90 degrees.)</p>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-477">line 477</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="normalX"><span class="type-signature">&lt;readonly> </span>normalX<span class="type-signature"> :number</span></h4>
</dt>
<dd>
<div class="description">
<p>Gets the x component of the left-hand normal of this line.</p>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-451">line 451</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="normalY"><span class="type-signature">&lt;readonly> </span>normalY<span class="type-signature"> :number</span></h4>
</dt>
<dd>
<div class="description">
<p>Gets the y component of the left-hand normal of this line.</p>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-464">line 464</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="perpSlope"><span class="type-signature">&lt;readonly> </span>perpSlope<span class="type-signature"> :number</span></h4>
</dt>
<dd>
<div class="description">
<p>Gets the perpendicular slope of the line (x/y).</p>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-334">line 334</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="right"><span class="type-signature">&lt;readonly> </span>right<span class="type-signature"> :number</span></h4>
</dt>
<dd>
<div class="description">
<p>Gets the right-most point of this line.</p>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-386">line 386</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="slope"><span class="type-signature">&lt;readonly> </span>slope<span class="type-signature"> :number</span></h4>
</dt>
<dd>
<div class="description">
<p>Gets the slope of the line (y/x).</p>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-321">line 321</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="start"><span class="type-signature"></span>start<span class="type-signature"> :<a href="Phaser.Point.html">Phaser.Point</a></span></h4>
</dt>
<dd>
<div class="description">
<p>The start point of the line.</p>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-27">line 27</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="top"><span class="type-signature">&lt;readonly> </span>top<span class="type-signature"> :number</span></h4>
</dt>
<dd>
<div class="description">
<p>Gets the top-most point of this line.</p>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-399">line 399</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="type"><span class="type-signature">&lt;readonly> </span>type<span class="type-signature"> :number</span></h4>
</dt>
<dd>
<div class="description">
<p>The const type of this object.</p>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-38">line 38</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="width"><span class="type-signature">&lt;readonly> </span>width<span class="type-signature"> :number</span></h4>
</dt>
<dd>
<div class="description">
<p>Gets the width of this bounds of this line.</p>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-425">line 425</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="x"><span class="type-signature">&lt;readonly> </span>x<span class="type-signature"> :number</span></h4>
</dt>
<dd>
<div class="description">
<p>Gets the x coordinate of the top left of the bounds around this line.</p>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-347">line 347</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="y"><span class="type-signature">&lt;readonly> </span>y<span class="type-signature"> :number</span></h4>
</dt>
<dd>
<div class="description">
<p>Gets the y coordinate of the top left of the bounds around this line.</p>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-360">line 360</a>
</dt>
</dl>
</dd>
</dl>
<h3 class="subsection-title">Methods</h3>
<dl>
<dt>
<h4 class="name "
id="intersects"><span class="type-signature">&lt;static> </span>intersects<span class="signature">(a, b, <span class="optional">asSegment</span>, <span class="optional">result</span>)</span><span class="type-signature"> &rarr; {<a href="Phaser.Point.html">Phaser.Point</a>}</span></h4>
</dt>
<dd>
<div class="description">
<p>Checks for intersection between two lines.
If asSegment is true it will check for segment intersection.
If asSegment is false it will check for line intersection.
Returns the intersection segment of AB and EF as a Point, or null if there is no intersection.
Adapted from code by Keith Hair</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"><a href="Phaser.Line.html">Phaser.Line</a></span>
</td>
<td class="attributes">
</td>
<td class="default">
</td>
<td class="description last"><p>The first Line to be checked.</p></td>
</tr>
<tr>
<td class="name"><code>b</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Line.html">Phaser.Line</a></span>
</td>
<td class="attributes">
</td>
<td class="default">
</td>
<td class="description last"><p>The second Line to be checked.</p></td>
</tr>
<tr>
<td class="name"><code>asSegment</code></td>
<td class="type">
<span class="param-type">boolean</span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="default">
true
</td>
<td class="description last"><p>If true it will check for segment intersection, otherwise full line intersection.</p></td>
</tr>
<tr>
<td class="name"><code>result</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Point.html">Phaser.Point</a></span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="default">
</td>
<td class="description last"><p>A Point object to store the result in, if not given a new one will be created.</p></td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="returns">
<div class="returns-type">
<span class="param-type"><a href="Phaser.Point.html">Phaser.Point</a></span>
-
</div>
<div class="returns-desc param-desc">
<p>The intersection segment of the two lines as a Point, or null if there is no intersection.</p>
</div>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-546">line 546</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="intersectsPoints"><span class="type-signature">&lt;static> </span>intersectsPoints<span class="signature">(a, b, e, f, <span class="optional">asSegment</span>, <span class="optional">result</span>)</span><span class="type-signature"> &rarr; {<a href="Phaser.Point.html">Phaser.Point</a>}</span></h4>
</dt>
<dd>
<div class="description">
<p>Checks for intersection between two lines as defined by the given start and end points.
If asSegment is true it will check for line segment intersection. If asSegment is false it will check for line intersection.
Returns the intersection segment of AB and EF as a Point, or null if there is no intersection.
Adapted from code by Keith Hair</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"><a href="Phaser.Point.html">Phaser.Point</a></span>
</td>
<td class="attributes">
</td>
<td class="default">
</td>
<td class="description last"><p>The start of the first Line to be checked.</p></td>
</tr>
<tr>
<td class="name"><code>b</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Point.html">Phaser.Point</a></span>
</td>
<td class="attributes">
</td>
<td class="default">
</td>
<td class="description last"><p>The end of the first line to be checked.</p></td>
</tr>
<tr>
<td class="name"><code>e</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Point.html">Phaser.Point</a></span>
</td>
<td class="attributes">
</td>
<td class="default">
</td>
<td class="description last"><p>The start of the second Line to be checked.</p></td>
</tr>
<tr>
<td class="name"><code>f</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Point.html">Phaser.Point</a></span>
</td>
<td class="attributes">
</td>
<td class="default">
</td>
<td class="description last"><p>The end of the second line to be checked.</p></td>
</tr>
<tr>
<td class="name"><code>asSegment</code></td>
<td class="type">
<span class="param-type">boolean</span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="default">
true
</td>
<td class="description last"><p>If true it will check for segment intersection, otherwise full line intersection.</p></td>
</tr>
<tr>
<td class="name"><code>result</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Point.html">Phaser.Point</a></span>
|
<span class="param-type">object</span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="default">
</td>
<td class="description last"><p>A Point object to store the result in, if not given a new one will be created.</p></td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="returns">
<div class="returns-type">
<span class="param-type"><a href="Phaser.Point.html">Phaser.Point</a></span>
-
</div>
<div class="returns-desc param-desc">
<p>The intersection segment of the two lines as a Point, or null if there is no intersection.</p>
</div>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-490">line 490</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="reflect"><span class="type-signature">&lt;static> </span>reflect<span class="signature">(a, b)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Returns the reflected angle between two lines.
This is the outgoing angle based on the angle of Line 1 and the normalAngle of Line 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>a</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Line.html">Phaser.Line</a></span>
</td>
<td class="description last"><p>The base line.</p></td>
</tr>
<tr>
<td class="name"><code>b</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Line.html">Phaser.Line</a></span>
</td>
<td class="description last"><p>The line to be reflected from the base line.</p></td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="returns">
<div class="returns-type">
<span class="param-type">number</span>
-
</div>
<div class="returns-desc param-desc">
<p>The reflected angle in radians.</p>
</div>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-566">line 566</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="clone"><span class="type-signature"></span>clone<span class="signature">(output)</span><span class="type-signature"> &rarr; {<a href="Phaser.Line.html">Phaser.Line</a>}</span></h4>
</dt>
<dd>
<div class="description">
<p>Returns a new Line object with the same values for the start and end properties as this Line 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>output</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Line.html">Phaser.Line</a></span>
</td>
<td class="description last"><p>Optional Line object. If given the values will be set into the object, otherwise a brand new Line object will be created and returned.</p></td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="returns">
<div class="returns-type">
<span class="param-type"><a href="Phaser.Line.html">Phaser.Line</a></span>
-
</div>
<div class="returns-desc param-desc">
<p>The cloned Line object.</p>
</div>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-272">line 272</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="coordinatesOnLine"><span class="type-signature"></span>coordinatesOnLine<span class="signature">(<span class="optional">stepRate</span>, <span class="optional">results</span>)</span><span class="type-signature"> &rarr; {array}</span></h4>
</dt>
<dd>
<div class="description">
<p>Using Bresenham's line algorithm this will return an array of all coordinates on this line.
The start and end points are rounded before this runs as the algorithm works on integers.</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>stepRate</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>How many steps will we return? 1 = every coordinate on the line, 2 = every other coordinate, etc.</p></td>
</tr>
<tr>
<td class="name"><code>results</code></td>
<td class="type">
<span class="param-type">array</span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="default">
</td>
<td class="description last"><p>The array to store the results in. If not provided a new one will be generated.</p></td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="returns">
<div class="returns-type">
<span class="param-type">array</span>
-
</div>
<div class="returns-desc param-desc">
<p>An array of coordinates.</p>
</div>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-214">line 214</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="fromAngle"><span class="type-signature"></span>fromAngle<span class="signature">(x, y, angle, length)</span><span class="type-signature"> &rarr; {<a href="Phaser.Line.html">Phaser.Line</a>}</span></h4>
</dt>
<dd>
<div class="description">
<p>Sets this line to start at the given <code>x</code> and <code>y</code> coordinates and for the segment to extend at <code>angle</code> for the given <code>length</code>.</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 start of the line.</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 start of the line.</p></td>
</tr>
<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 of the line in radians.</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>The length of the line in pixels.</p></td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="returns">
<div class="returns-type">
<span class="param-type"><a href="Phaser.Line.html">Phaser.Line</a></span>
-
</div>
<div class="returns-desc param-desc">
<p>This line object</p>
</div>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-86">line 86</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="fromSprite"><span class="type-signature"></span>fromSprite<span class="signature">(startSprite, endSprite, <span class="optional">useCenter</span>)</span><span class="type-signature"> &rarr; {<a href="Phaser.Line.html">Phaser.Line</a>}</span></h4>
</dt>
<dd>
<div class="description">
<p>Sets the line to match the x/y coordinates of the two given sprites.
Can optionally be calculated from their center coordinates.</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>startSprite</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Sprite.html">Phaser.Sprite</a></span>
</td>
<td class="attributes">
</td>
<td class="default">
</td>
<td class="description last"><p>The coordinates of this Sprite will be set to the Line.start point.</p></td>
</tr>
<tr>
<td class="name"><code>endSprite</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Sprite.html">Phaser.Sprite</a></span>
</td>
<td class="attributes">
</td>
<td class="default">
</td>
<td class="description last"><p>The coordinates of this Sprite will be set to the Line.start point.</p></td>
</tr>
<tr>
<td class="name"><code>useCenter</code></td>
<td class="type">
<span class="param-type">boolean</span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="default">
false
</td>
<td class="description last"><p>If true it will use startSprite.center.x, if false startSprite.x. Note that Sprites don't have a center property by default, so only enable if you've over-ridden your Sprite with a custom class.</p></td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="returns">
<div class="returns-type">
<span class="param-type"><a href="Phaser.Line.html">Phaser.Line</a></span>
-
</div>
<div class="returns-desc param-desc">
<p>This line object</p>
</div>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-63">line 63</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="intersects"><span class="type-signature"></span>intersects<span class="signature">(line, <span class="optional">asSegment</span>, <span class="optional">result</span>)</span><span class="type-signature"> &rarr; {<a href="Phaser.Point.html">Phaser.Point</a>}</span></h4>
</dt>
<dd>
<div class="description">
<p>Checks for intersection between this line and another Line.
If asSegment is true it will check for segment intersection. If asSegment is false it will check for line intersection.
Returns the intersection segment of AB and EF as a Point, or null if there is no intersection.</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>line</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Line.html">Phaser.Line</a></span>
</td>
<td class="attributes">
</td>
<td class="default">
</td>
<td class="description last"><p>The line to check against this one.</p></td>
</tr>
<tr>
<td class="name"><code>asSegment</code></td>
<td class="type">
<span class="param-type">boolean</span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="default">
true
</td>
<td class="description last"><p>If true it will check for segment intersection, otherwise full line intersection.</p></td>
</tr>
<tr>
<td class="name"><code>result</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Point.html">Phaser.Point</a></span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="default">
</td>
<td class="description last"><p>A Point object to store the result in, if not given a new one will be created.</p></td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="returns">
<div class="returns-type">
<span class="param-type"><a href="Phaser.Point.html">Phaser.Point</a></span>
-
</div>
<div class="returns-desc param-desc">
<p>The intersection segment of the two lines as a Point, or null if there is no intersection.</p>
</div>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-129">line 129</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="pointOnLine"><span class="type-signature"></span>pointOnLine<span class="signature">(x, y)</span><span class="type-signature"> &rarr; {boolean}</span></h4>
</dt>
<dd>
<div class="description">
<p>Tests if the given coordinates fall on this line. See pointOnSegment to test against just the line segment.</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 line to check against this one.</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 line to check against this one.</p></td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="returns">
<div class="returns-type">
<span class="param-type">boolean</span>
-
</div>
<div class="returns-desc param-desc">
<p>True if the point is on the line, false if not.</p>
</div>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-160">line 160</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="pointOnSegment"><span class="type-signature"></span>pointOnSegment<span class="signature">(x, y)</span><span class="type-signature"> &rarr; {boolean}</span></h4>
</dt>
<dd>
<div class="description">
<p>Tests if the given coordinates fall on this line and within the segment. See pointOnLine to test against just the line.</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 line to check against this one.</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 line to check against this one.</p></td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="returns">
<div class="returns-type">
<span class="param-type">boolean</span>
-
</div>
<div class="returns-desc param-desc">
<p>True if the point is on the line and segment, false if not.</p>
</div>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-174">line 174</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="random"><span class="type-signature"></span>random<span class="signature">(<span class="optional">out</span>)</span><span class="type-signature"> &rarr; {<a href="Phaser.Point.html">Phaser.Point</a>}</span></h4>
</dt>
<dd>
<div class="description">
<p>Picks a random point from anywhere on the Line segment and returns it.</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>out</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Point.html">Phaser.Point</a></span>
|
<span class="param-type">object</span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="description last"><p>A Phaser.Point, or any object with public x/y properties, that the values will be set in.
If no object is provided a new Phaser.Point object will be created. In high performance areas avoid this by re-using an object.</p></td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="returns">
<div class="returns-type">
<span class="param-type"><a href="Phaser.Point.html">Phaser.Point</a></span>
-
</div>
<div class="returns-desc param-desc">
<p>An object containing the random point in its <code>x</code> and <code>y</code> properties.</p>
</div>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-193">line 193</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="reflect"><span class="type-signature"></span>reflect<span class="signature">(line)</span><span class="type-signature"> &rarr; {number}</span></h4>
</dt>
<dd>
<div class="description">
<p>Returns the reflected angle between two lines.
This is the outgoing angle based on the angle of this line and the normalAngle of the given line.</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>line</code></td>
<td class="type">
<span class="param-type"><a href="Phaser.Line.html">Phaser.Line</a></span>
</td>
<td class="description last"><p>The line to reflect off this line.</p></td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="returns">
<div class="returns-type">
<span class="param-type">number</span>
-
</div>
<div class="returns-desc param-desc">
<p>The reflected angle in radians.</p>
</div>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-146">line 146</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="rotate"><span class="type-signature"></span>rotate<span class="signature">(angle, <span class="optional">asDegrees</span>)</span><span class="type-signature"> &rarr; {<a href="Phaser.Line.html">Phaser.Line</a>}</span></h4>
</dt>
<dd>
<div class="description">
<p>Rotates the line by the amount specified in <code>angle</code>.</p>
<p>Rotation takes place from the center of the line.</p>
<p>If you wish to rotate from either end see Line.start.rotate or Line.end.rotate.</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>angle</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 angle in radians (unless asDegrees is true) to rotate the line by.</p></td>
</tr>
<tr>
<td class="name"><code>asDegrees</code></td>
<td class="type">
<span class="param-type">boolean</span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="default">
false
</td>
<td class="description last"><p>Is the given angle in radians (false) or degrees (true)?</p></td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="returns">
<div class="returns-type">
<span class="param-type"><a href="Phaser.Line.html">Phaser.Line</a></span>
-
</div>
<div class="returns-desc param-desc">
<p>This line object</p>
</div>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-105">line 105</a>
</dt>
</dl>
</dd>
<dt>
<h4 class="name "
id="setTo"><span class="type-signature"></span>setTo<span class="signature">(<span class="optional">x1</span>, <span class="optional">y1</span>, <span class="optional">x2</span>, <span class="optional">y2</span>)</span><span class="type-signature"> &rarr; {<a href="Phaser.Line.html">Phaser.Line</a>}</span></h4>
</dt>
<dd>
<div class="description">
<p>Sets the components of the Line to the specified values.</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">
&lt;optional><br>
</td>
<td class="default">
0
</td>
<td class="description last"><p>The x coordinate of the start of the line.</p></td>
</tr>
<tr>
<td class="name"><code>y1</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 y coordinate of the start of the line.</p></td>
</tr>
<tr>
<td class="name"><code>x2</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 x coordinate of the end of the line.</p></td>
</tr>
<tr>
<td class="name"><code>y2</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 y coordinate of the end of the line.</p></td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="returns">
<div class="returns-type">
<span class="param-type"><a href="Phaser.Line.html">Phaser.Line</a></span>
-
</div>
<div class="returns-desc param-desc">
<p>This line object</p>
</div>
</div>
<dl class="details">
<dt class="tag-source">Source -
<a href="src_geom_Line.js.html">geom/Line.js</a>, <a href="src_geom_Line.js.html#sunlight-1-line-44">line 44</a>
</dt>
</dl>
</dd>
</dl>
</article>
</section>
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Phaser Copyright © 2012-2015 Photon Storm Ltd.
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