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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>World - p2.js</title> <link rel="stylesheet" href="http://yui.yahooapis.com/3.9.1/build/cssgrids/cssgrids-min.css"> <link rel="stylesheet" href="../assets/vendor/prettify/prettify-min.css"> <link rel="stylesheet" href="../assets/css/main.css" id="site_styles"> <link rel="icon" href="../assets/favicon.ico"> <script src="http://yui.yahooapis.com/combo?3.9.1/build/yui/yui-min.js"></script> </head> <body class="yui3-skin-sam"> <div id="doc"> <div id="hd" class="yui3-g header"> <div class="yui3-u-3-4"> <h1><img src="../assets/css/logo.png" title="p2.js" width="117" height="52"></h1> </div> <div class="yui3-u-1-4 version"> <em>API Docs for: 0.7.1</em> </div> </div> <div id="bd" class="yui3-g"> <div class="yui3-u-1-4"> <div id="docs-sidebar" class="sidebar apidocs"> <div id="api-list"> <h2 class="off-left">APIs</h2> <div id="api-tabview" class="tabview"> <ul class="tabs"> <li><a href="#api-classes">Classes</a></li> <li><a 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</label> </div> <div class="apidocs"> <div id="docs-main"> <div class="content"> <h1>World Class</h1> <div class="box meta"> <div class="extends"> Extends <a href="../classes/EventEmitter.html" class="crosslink">EventEmitter</a> </div> <div class="foundat"> Defined in: <a href="../files/src_world_World.js.html#l35"><code>src/world/World.js:35</code></a> </div> </div> <div class="box intro"> <p>The dynamics world, where all bodies and constraints live.</p> </div> <div class="constructor"> <h2>Constructor</h2> <div id="method_World" class="method item"> <h3 class="name"><code>World</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code class="optional">[options]</code> </li> </ul><span class="paren">)</span> </div> <div class="meta"> <p> Defined in <a href="../files/src_world_World.js.html#l35"><code>src/world/World.js:35</code></a> </p> </div> <div class="description"> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name optional">[options]</code> <span class="type">Object</span> <span class="flag optional" title="This parameter is optional.">optional</span> <div class="param-description"> </div> <ul class="params-list"> <li class="param"> <code class="param-name optional">[solver]</code> <span class="type"><a href="../classes/Solver.html" class="crosslink">Solver</a></span> <span class="flag optional" title="This parameter is optional.">optional</span> <div class="param-description"> <p>Defaults to GSSolver.</p> </div> </li> <li class="param"> <code class="param-name optional">[gravity]</code> <span class="type">Array</span> <span class="flag optional" title="This parameter is optional.">optional</span> <div class="param-description"> <p>Defaults to y=-9.78.</p> </div> </li> <li class="param"> <code class="param-name optional">[broadphase]</code> <span class="type"><a href="../classes/Broadphase.html" class="crosslink">Broadphase</a></span> <span class="flag optional" title="This parameter is optional.">optional</span> <div class="param-description"> <p>Defaults to SAPBroadphase</p> </div> </li> <li class="param"> <code class="param-name optional">[islandSplit=true]</code> <span class="type">Boolean</span> <span class="flag optional" title="This parameter is optional.">optional</span> <div class="param-description"> </div> </li> </ul> </li> </ul> </div> <div class="example"> <h4>Example:</h4> <div class="example-content"> <pre class="code prettyprint"><code>var world = new World({ gravity: [0, -10], broadphase: new SAPBroadphase() }); world.addBody(new Body()); </code></pre> </div> </div> </div> </div> <div id="classdocs" class="tabview"> <ul class="api-class-tabs"> <li class="api-class-tab index"><a href="#index">Index</a></li> <li class="api-class-tab methods"><a href="#methods">Methods</a></li> <li class="api-class-tab properties"><a href="#properties">Properties</a></li> <li class="api-class-tab events"><a href="#events">Events</a></li> </ul> <div> <div id="index" class="api-class-tabpanel index"> <h2 class="off-left">Item Index</h2> <div class="index-section methods"> <h3>Methods</h3> <ul class="index-list methods extends"> <li class="index-item method"> <a href="#method_addBody">addBody</a> </li> <li class="index-item method"> <a href="#method_addConstraint">addConstraint</a> </li> <li class="index-item method"> <a href="#method_addContactMaterial">addContactMaterial</a> </li> <li class="index-item method"> <a href="#method_addSpring">addSpring</a> </li> <li class="index-item method"> <a href="#method_clear">clear</a> </li> <li class="index-item method"> <a href="#method_disableBodyCollision">disableBodyCollision</a> </li> <li class="index-item method inherited"> <a href="#method_emit">emit</a> </li> <li class="index-item method"> <a href="#method_enableBodyCollision">enableBodyCollision</a> </li> <li class="index-item method"> <a href="#method_getBodyById">getBodyById</a> </li> <li class="index-item method"> <a href="#method_getContactMaterial">getContactMaterial</a> </li> <li class="index-item method inherited"> <a href="#method_has">has</a> </li> <li class="index-item method"> <a href="#method_hitTest">hitTest</a> </li> <li class="index-item method private"> <a href="#method_internalStep">internalStep</a> </li> <li class="index-item method inherited"> <a href="#method_off">off</a> </li> <li class="index-item method inherited"> <a href="#method_on">on</a> </li> <li class="index-item method"> <a href="#method_raycast">raycast</a> </li> <li class="index-item method"> <a href="#method_removeBody">removeBody</a> </li> <li class="index-item method"> <a href="#method_removeConstraint">removeConstraint</a> </li> <li class="index-item method"> <a href="#method_removeContactMaterial">removeContactMaterial</a> </li> <li class="index-item method"> <a href="#method_removeSpring">removeSpring</a> </li> <li class="index-item method"> <a href="#method_runNarrowphase">runNarrowphase</a> </li> <li class="index-item method"> <a href="#method_setGlobalRelaxation">setGlobalRelaxation</a> </li> <li class="index-item method"> <a href="#method_setGlobalStiffness">setGlobalStiffness</a> </li> <li class="index-item method"> <a href="#method_step">step</a> </li> </ul> </div> <div class="index-section properties"> <h3>Properties</h3> <ul class="index-list properties extends"> <li class="index-item property"> <a href="#property_applyDamping">applyDamping</a> </li> <li class="index-item property"> <a href="#property_applyGravity">applyGravity</a> </li> <li class="index-item property"> <a href="#property_applySpringForces">applySpringForces</a> </li> <li class="index-item property"> <a href="#property_bodies">bodies</a> </li> <li class="index-item property private"> <a href="#property_bodiesToBeRemoved">bodiesToBeRemoved</a> </li> <li class="index-item property"> <a href="#property_BODY_SLEEPING">BODY_SLEEPING</a> <span class="flag static">static</span> </li> <li class="index-item property"> <a href="#property_broadphase">broadphase</a> </li> <li class="index-item property"> <a href="#property_constraints">constraints</a> </li> <li class="index-item property"> <a href="#property_contactMaterials">contactMaterials</a> </li> <li class="index-item property"> <a href="#property_defaultContactMaterial">defaultContactMaterial</a> </li> <li class="index-item property"> <a href="#property_defaultMaterial">defaultMaterial</a> </li> <li class="index-item property private"> <a href="#property_disabledBodyCollisionPairs">disabledBodyCollisionPairs</a> </li> <li class="index-item property"> <a href="#property_emitImpactEvent">emitImpactEvent</a> </li> <li class="index-item property"> <a href="#property_frictionGravity">frictionGravity</a> </li> <li class="index-item property"> <a href="#property_gravity">gravity</a> </li> <li class="index-item property"> <a href="#property_ISLAND_SLEEPING">ISLAND_SLEEPING</a> <span class="flag static">static</span> </li> <li class="index-item property"> <a href="#property_islandManager">islandManager</a> </li> <li class="index-item property"> <a href="#property_islandSplit">islandSplit</a> </li> <li class="index-item property"> <a href="#property_lastTimeStep">lastTimeStep</a> </li> <li class="index-item property"> <a href="#property_narrowphase">narrowphase</a> </li> <li class="index-item property"> <a href="#property_NO_SLEEPING">NO_SLEEPING</a> <span class="flag static">static</span> </li> <li class="index-item property"> <a href="#property_overlapKeeper">overlapKeeper</a> </li> <li class="index-item property"> <a href="#property_sleepMode">sleepMode</a> </li> <li class="index-item property"> <a href="#property_solveConstraints">solveConstraints</a> </li> <li class="index-item property"> <a href="#property_solver">solver</a> </li> <li class="index-item property"> <a href="#property_springs">springs</a> </li> <li class="index-item property"> <a href="#property_stepping">stepping</a> </li> <li class="index-item property"> <a href="#property_time">time</a> </li> <li class="index-item property"> <a href="#property_useFrictionGravityOnZeroGravity">useFrictionGravityOnZeroGravity</a> </li> <li class="index-item property"> <a href="#property_useWorldGravityAsFrictionGravity">useWorldGravityAsFrictionGravity</a> </li> </ul> </div> <div class="index-section events"> <h3>Events</h3> <ul class="index-list events extends"> <li class="index-item event"> <a href="#event_addBody">addBody</a> </li> <li class="index-item event"> <a href="#event_addSpring">addSpring</a> </li> <li class="index-item event"> <a href="#event_beginContact">beginContact</a> </li> <li class="index-item event"> <a href="#event_endContact">endContact</a> </li> <li class="index-item event"> <a href="#event_impact">impact</a> </li> <li class="index-item event"> <a href="#event_postBroadphase">postBroadphase</a> </li> <li class="index-item event"> <a href="#event_postStep">postStep</a> </li> <li class="index-item event"> <a href="#event_preSolve">preSolve</a> </li> <li class="index-item event"> <a href="#event_removeBody">removeBody</a> </li> </ul> </div> </div> <div id="methods" class="api-class-tabpanel"> <h2 class="off-left">Methods</h2> <div id="method_addBody" class="method item"> <h3 class="name"><code>addBody</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>body</code> </li> </ul><span class="paren">)</span> </div> <div class="meta"> <p> Defined in <a href="../files/src_world_World.js.html#l982"><code>src/world/World.js:982</code></a> </p> </div> <div class="description"> <p>Add a body to the simulation</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">body</code> <span class="type"><a href="../classes/Body.html" class="crosslink">Body</a></span> <div class="param-description"> </div> </li> </ul> </div> <div class="example"> <h4>Example:</h4> <div class="example-content"> <pre class="code prettyprint"><code>var world = new World(), body = new Body(); world.addBody(body); </code></pre> </div> </div> </div> <div id="method_addConstraint" class="method item"> <h3 class="name"><code>addConstraint</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>constraint</code> </li> </ul><span class="paren">)</span> </div> <div class="meta"> <p> Defined in <a href="../files/src_world_World.js.html#l399"><code>src/world/World.js:399</code></a> </p> </div> <div class="description"> <p>Add a constraint to the simulation.</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">constraint</code> <span class="type"><a href="../classes/Constraint.html" class="crosslink">Constraint</a></span> <div class="param-description"> </div> </li> </ul> </div> <div class="example"> <h4>Example:</h4> <div class="example-content"> <pre class="code prettyprint"><code>var constraint = new LockConstraint(bodyA, bodyB); world.addConstraint(constraint); </code></pre> </div> </div> </div> <div id="method_addContactMaterial" class="method item"> <h3 class="name"><code>addContactMaterial</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>contactMaterial</code> </li> </ul><span class="paren">)</span> </div> <div class="meta"> <p> Defined in <a href="../files/src_world_World.js.html#l412"><code>src/world/World.js:412</code></a> </p> </div> <div class="description"> <p>Add a ContactMaterial to the simulation.</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">contactMaterial</code> <span class="type"><a href="../classes/ContactMaterial.html" class="crosslink">ContactMaterial</a></span> <div class="param-description"> </div> </li> </ul> </div> </div> <div id="method_addSpring" class="method item"> <h3 class="name"><code>addSpring</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>spring</code> </li> </ul><span class="paren">)</span> </div> <div class="meta"> <p> Defined in <a href="../files/src_world_World.js.html#l955"><code>src/world/World.js:955</code></a> </p> </div> <div class="description"> <p>Add a spring to the simulation</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">spring</code> <span class="type"><a href="../classes/Spring.html" class="crosslink">Spring</a></span> <div class="param-description"> </div> </li> </ul> </div> </div> <div id="method_clear" class="method item"> <h3 class="name"><code>clear</code></h3> <span class="paren">()</span> <div class="meta"> <p> Defined in <a href="../files/src_world_World.js.html#l1070"><code>src/world/World.js:1070</code></a> </p> </div> <div class="description"> <p>Resets the World, removes all bodies, constraints and springs.</p> </div> </div> <div id="method_disableBodyCollision" class="method item"> <h3 class="name"><code>disableBodyCollision</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>bodyA</code> </li> <li class="arg"> <code>bodyB</code> </li> </ul><span class="paren">)</span> </div> <div class="meta"> <p> Defined in <a href="../files/src_world_World.js.html#l1044"><code>src/world/World.js:1044</code></a> </p> </div> <div class="description"> <p>Disable collision between two bodies</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">bodyA</code> <span class="type"><a href="../classes/Body.html" class="crosslink">Body</a></span> <div class="param-description"> </div> </li> <li class="param"> <code class="param-name">bodyB</code> <span class="type"><a href="../classes/Body.html" class="crosslink">Body</a></span> <div class="param-description"> </div> </li> </ul> </div> </div> <div id="method_emit" class="method item inherited"> <h3 class="name"><code>emit</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>event</code> </li> </ul><span class="paren">)</span> </div> <span class="returns-inline"> <span class="type"><a href="../classes/EventEmitter.html" class="crosslink">EventEmitter</a></span> </span> <div class="meta"> <p>Inherited from <a href="../classes/EventEmitter.html#method_emit">EventEmitter</a>: <a href="../files/src_events_EventEmitter.js.html#l79"><code>src/events/EventEmitter.js:79</code></a> </p> </div> <div class="description"> <p>Emit an event.</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">event</code> <span class="type">Object</span> <div class="param-description"> </div> <ul class="params-list"> <li class="param"> <code class="param-name">type</code> <span class="type">String</span> <div class="param-description"> </div> </li> </ul> </li> </ul> </div> <div class="returns"> <h4>Returns:</h4> <div class="returns-description"> <span class="type"><a href="../classes/EventEmitter.html" class="crosslink">EventEmitter</a></span>: <p>The self object, for chainability.</p> </div> </div> </div> <div id="method_enableBodyCollision" class="method item"> <h3 class="name"><code>enableBodyCollision</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>bodyA</code> </li> <li class="arg"> <code>bodyB</code> </li> </ul><span class="paren">)</span> </div> <div class="meta"> <p> Defined in <a href="../files/src_world_World.js.html#l1054"><code>src/world/World.js:1054</code></a> </p> </div> <div class="description"> <p>Enable collisions between the given two bodies</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">bodyA</code> <span class="type"><a href="../classes/Body.html" class="crosslink">Body</a></span> <div class="param-description"> </div> </li> <li class="param"> <code class="param-name">bodyB</code> <span class="type"><a href="../classes/Body.html" class="crosslink">Body</a></span> <div class="param-description"> </div> </li> </ul> </div> </div> <div id="method_getBodyById" class="method item"> <h3 class="name"><code>getBodyById</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>id</code> </li> </ul><span class="paren">)</span> </div> <span class="returns-inline"> <span class="type"><a href="../classes/Body.html" class="crosslink">Body</a></span> </span> <div class="meta"> <p> Defined in <a href="../files/src_world_World.js.html#l1027"><code>src/world/World.js:1027</code></a> </p> </div> <div class="description"> <p>Get a body by its id.</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">id</code> <span class="type">Number</span> <div class="param-description"> </div> </li> </ul> </div> <div class="returns"> <h4>Returns:</h4> <div class="returns-description"> <span class="type"><a href="../classes/Body.html" class="crosslink">Body</a></span>: <p>The body, or false if it was not found.</p> </div> </div> </div> <div id="method_getContactMaterial" class="method item"> <h3 class="name"><code>getContactMaterial</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>materialA</code> </li> <li class="arg"> <code>materialB</code> </li> </ul><span class="paren">)</span> </div> <span class="returns-inline"> <span class="type"><a href="../classes/ContactMaterial.html" class="crosslink">ContactMaterial</a></span> </span> <div class="meta"> <p> Defined in <a href="../files/src_world_World.js.html#l434"><code>src/world/World.js:434</code></a> </p> </div> <div class="description"> <p>Get a contact material given two materials</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">materialA</code> <span class="type"><a href="../classes/Material.html" class="crosslink">Material</a></span> <div class="param-description"> </div> </li> <li class="param"> <code class="param-name">materialB</code> <span class="type"><a href="../classes/Material.html" class="crosslink">Material</a></span> <div class="param-description"> </div> </li> </ul> </div> <div class="returns"> <h4>Returns:</h4> <div class="returns-description"> <span class="type"><a href="../classes/ContactMaterial.html" class="crosslink">ContactMaterial</a></span>: <p>The matching ContactMaterial, or false on fail.</p> </div> </div> </div> <div id="method_has" class="method item inherited"> <h3 class="name"><code>has</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>type</code> </li> <li class="arg"> <code>listener</code> </li> </ul><span class="paren">)</span> </div> <span class="returns-inline"> <span class="type">Boolean</span> </span> <div class="meta"> <p>Inherited from <a href="../classes/EventEmitter.html#method_has">EventEmitter</a>: <a href="../files/src_events_EventEmitter.js.html#l35"><code>src/events/EventEmitter.js:35</code></a> </p> </div> <div class="description"> <p>Check if an event listener is added</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">type</code> <span class="type">String</span> <div class="param-description"> </div> </li> <li class="param"> <code class="param-name">listener</code> <span class="type">Function</span> <div class="param-description"> </div> </li> </ul> </div> <div class="returns"> <h4>Returns:</h4> <div class="returns-description"> <span class="type">Boolean</span>: </div> </div> </div> <div id="method_hitTest" class="method item"> <h3 class="name"><code>hitTest</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>worldPoint</code> </li> <li class="arg"> <code>bodies</code> </li> <li class="arg"> <code>precision</code> </li> </ul><span class="paren">)</span> </div> <span class="returns-inline"> <span class="type">Array</span> </span> <div class="meta"> <p> Defined in <a href="../files/src_world_World.js.html#l1115"><code>src/world/World.js:1115</code></a> </p> </div> <div class="description"> <p>Test if a world point overlaps bodies</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">worldPoint</code> <span class="type">Array</span> <div class="param-description"> <p>Point to use for intersection tests</p> </div> </li> <li class="param"> <code class="param-name">bodies</code> <span class="type">Array</span> <div class="param-description"> <p>A list of objects to check for intersection</p> </div> </li> <li class="param"> <code class="param-name">precision</code> <span class="type">Number</span> <div class="param-description"> <p>Used for matching against particles and lines. Adds some margin to these infinitesimal objects.</p> </div> </li> </ul> </div> <div class="returns"> <h4>Returns:</h4> <div class="returns-description"> <span class="type">Array</span>: <p>Array of bodies that overlap the point</p> </div> </div> </div> <div id="method_internalStep" class="method item private"> <h3 class="name"><code>internalStep</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>dt</code> </li> </ul><span class="paren">)</span> </div> <span class="flag private">private</span> <div class="meta"> <p> Defined in <a href="../files/src_world_World.js.html#l560"><code>src/world/World.js:560</code></a> </p> </div> <div class="description"> <p>Make a fixed step.</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">dt</code> <span class="type">Number</span> <div class="param-description"> </div> </li> </ul> </div> </div> <div id="method_off" class="method item inherited"> <h3 class="name"><code>off</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>type</code> </li> <li class="arg"> <code>listener</code> </li> </ul><span class="paren">)</span> </div> <span class="returns-inline"> <span class="type"><a href="../classes/EventEmitter.html" class="crosslink">EventEmitter</a></span> </span> <div class="meta"> <p>Inherited from <a href="../classes/EventEmitter.html#method_off">EventEmitter</a>: <a href="../files/src_events_EventEmitter.js.html#l60"><code>src/events/EventEmitter.js:60</code></a> </p> </div> <div class="description"> <p>Remove an event listener</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">type</code> <span class="type">String</span> <div class="param-description"> </div> </li> <li class="param"> <code class="param-name">listener</code> <span class="type">Function</span> <div class="param-description"> </div> </li> </ul> </div> <div class="returns"> <h4>Returns:</h4> <div class="returns-description"> <span class="type"><a href="../classes/EventEmitter.html" class="crosslink">EventEmitter</a></span>: <p>The self object, for chainability.</p> </div> </div> </div> <div id="method_on" class="method item inherited"> <h3 class="name"><code>on</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>type</code> </li> <li class="arg"> <code>listener</code> </li> </ul><span class="paren">)</span> </div> <span class="returns-inline"> <span class="type"><a href="../classes/EventEmitter.html" class="crosslink">EventEmitter</a></span> </span> <div class="meta"> <p>Inherited from <a href="../classes/EventEmitter.html#method_on">EventEmitter</a>: <a href="../files/src_events_EventEmitter.js.html#l13"><code>src/events/EventEmitter.js:13</code></a> </p> </div> <div class="description"> <p>Add an event listener</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">type</code> <span class="type">String</span> <div class="param-description"> </div> </li> <li class="param"> <code class="param-name">listener</code> <span class="type">Function</span> <div class="param-description"> </div> </li> </ul> </div> <div class="returns"> <h4>Returns:</h4> <div class="returns-description"> <span class="type"><a href="../classes/EventEmitter.html" class="crosslink">EventEmitter</a></span>: <p>The self object, for chainability.</p> </div> </div> </div> <div id="method_raycast" class="method item"> <h3 class="name"><code>raycast</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <l