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A lightweight 3D physics engine written in JavaScript.

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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>RaycastVehicle - cannon</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="cannon" width="117" height="52"></h1> </div> <div class="yui3-u-1-4 version"> <em>API Docs for: 0.6.1</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 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id="api-show-inherited" checked> Inherited </label> <label for="api-show-protected"> <input type="checkbox" id="api-show-protected"> Protected </label> <label for="api-show-private"> <input type="checkbox" id="api-show-private"> Private </label> <label for="api-show-deprecated"> <input type="checkbox" id="api-show-deprecated"> Deprecated </label> </div> <div class="apidocs"> <div id="docs-main"> <div class="content"> <h1>RaycastVehicle Class</h1> <div class="box meta"> <div class="foundat"> Defined in: <a href="../files/src_objects_RaycastVehicle.js.html#l10"><code>src&#x2F;objects&#x2F;RaycastVehicle.js:10</code></a> </div> </div> <div class="box intro"> <p>Vehicle helper class that casts rays from the wheel positions towards the ground and applies forces.</p> </div> <div class="constructor"> <h2>Constructor</h2> <div id="method_RaycastVehicle" class="method item"> <h3 class="name"><code>RaycastVehicle</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_objects_RaycastVehicle.js.html#l10"><code>src&#x2F;objects&#x2F;RaycastVehicle.js:10</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">[chassisBody]</code> <span class="type"><a href="../classes/Body.html" class="crosslink">Body</a></span> <span class="flag optional" title="This parameter is optional.">optional</span> <div class="param-description"> <p>The car chassis body.</p> </div> </li> <li class="param"> <code class="param-name optional">[indexRightAxis]</code> <span class="type">Integer</span> <span class="flag optional" title="This parameter is optional.">optional</span> <div class="param-description"> <p>Axis to use for right. x=0, y=1, z=2</p> </div> </li> <li class="param"> <code class="param-name optional">[indexLeftAxis]</code> <span class="type">Integer</span> <span class="flag optional" title="This parameter is optional.">optional</span> <div class="param-description"> </div> </li> <li class="param"> <code class="param-name optional">[indexUpAxis]</code> <span class="type">Integer</span> <span class="flag optional" title="This parameter is optional.">optional</span> <div class="param-description"> </div> </li> </ul> </li> </ul> </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> </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"> <li class="index-item method"> <a href="#method_addToWorld">addToWorld</a> </li> <li class="index-item method"> <a href="#method_addWheel">addWheel</a> </li> <li class="index-item method"> <a href="#method_applyEngineForce">applyEngineForce</a> </li> <li class="index-item method private"> <a href="#method_getVehicleAxisWorld">getVehicleAxisWorld</a> </li> <li class="index-item method"> <a href="#method_getWheelTransformWorld">getWheelTransformWorld</a> </li> <li class="index-item method"> <a href="#method_removeFromWorld">removeFromWorld</a> </li> <li class="index-item method"> <a href="#method_setBrake">setBrake</a> </li> <li class="index-item method"> <a href="#method_setSteeringValue">setSteeringValue</a> </li> <li class="index-item method"> <a href="#method_updateWheelTransform">updateWheelTransform</a> </li> </ul> </div> <div class="index-section properties"> <h3>Properties</h3> <ul class="index-list properties"> <li class="index-item property"> <a href="#property_chassisBody">chassisBody</a> </li> <li class="index-item property"> <a href="#property_indexForwardAxis">indexForwardAxis</a> </li> <li class="index-item property"> <a href="#property_indexRightAxis">indexRightAxis</a> </li> <li class="index-item property"> <a href="#property_indexUpAxis">indexUpAxis</a> </li> <li class="index-item property"> <a href="#property_sliding">sliding</a> </li> <li class="index-item property"> <a href="#property_wheelInfos">wheelInfos</a> </li> <li class="index-item property"> <a href="#property_world">world</a> </li> </ul> </div> </div> <div id="methods" class="api-class-tabpanel"> <h2 class="off-left">Methods</h2> <div id="method_addToWorld" class="method item"> <h3 class="name"><code>addToWorld</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>world</code> </li> </ul><span class="paren">)</span> </div> <div class="meta"> <p> Defined in <a href="../files/src_objects_RaycastVehicle.js.html#l122"><code>src&#x2F;objects&#x2F;RaycastVehicle.js:122</code></a> </p> </div> <div class="description"> <p>Add the vehicle including its constraints to the world.</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">world</code> <span class="type"><a href="../classes/World.html" class="crosslink">World</a></span> <div class="param-description"> </div> </li> </ul> </div> </div> <div id="method_addWheel" class="method item"> <h3 class="name"><code>addWheel</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_objects_RaycastVehicle.js.html#l74"><code>src&#x2F;objects&#x2F;RaycastVehicle.js:74</code></a> </p> </div> <div class="description"> <p>Add a wheel. For information about the options, see WheelInfo.</p> </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> </li> </ul> </div> </div> <div id="method_applyEngineForce" class="method item"> <h3 class="name"><code>applyEngineForce</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>value</code> </li> <li class="arg"> <code>wheelIndex</code> </li> </ul><span class="paren">)</span> </div> <div class="meta"> <p> Defined in <a href="../files/src_objects_RaycastVehicle.js.html#l102"><code>src&#x2F;objects&#x2F;RaycastVehicle.js:102</code></a> </p> </div> <div class="description"> <p>Set the wheel force to apply on one of the wheels each time step</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">value</code> <span class="type">Number</span> <div class="param-description"> </div> </li> <li class="param"> <code class="param-name">wheelIndex</code> <span class="type">Integer</span> <div class="param-description"> </div> </li> </ul> </div> </div> <div id="method_getVehicleAxisWorld" class="method item private"> <h3 class="name"><code>getVehicleAxisWorld</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>axisIndex</code> </li> <li class="arg"> <code>result</code> </li> </ul><span class="paren">)</span> </div> <span class="flag private">private</span> <div class="meta"> <p> Defined in <a href="../files/src_objects_RaycastVehicle.js.html#l138"><code>src&#x2F;objects&#x2F;RaycastVehicle.js:138</code></a> </p> </div> <div class="description"> <p>Get one of the wheel axles, world-oriented.</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">axisIndex</code> <span class="type">Integer</span> <div class="param-description"> </div> </li> <li class="param"> <code class="param-name">result</code> <span class="type"><a href="../classes/Vec3.html" class="crosslink">Vec3</a></span> <div class="param-description"> </div> </li> </ul> </div> </div> <div id="method_getWheelTransformWorld" class="method item"> <h3 class="name"><code>getWheelTransformWorld</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>wheelIndex</code> </li> </ul><span class="paren">)</span> </div> <span class="returns-inline"> <span class="type"><a href="../classes/Transform.html" class="crosslink">Transform</a></span> </span> <div class="meta"> <p> Defined in <a href="../files/src_objects_RaycastVehicle.js.html#l428"><code>src&#x2F;objects&#x2F;RaycastVehicle.js:428</code></a> </p> </div> <div class="description"> <p>Get the world transform of one of the wheels</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">wheelIndex</code> <span class="type">Integer</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/Transform.html" class="crosslink">Transform</a></span>: </div> </div> </div> <div id="method_removeFromWorld" class="method item"> <h3 class="name"><code>removeFromWorld</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>world</code> </li> </ul><span class="paren">)</span> </div> <div class="meta"> <p> Defined in <a href="../files/src_objects_RaycastVehicle.js.html#l279"><code>src&#x2F;objects&#x2F;RaycastVehicle.js:279</code></a> </p> </div> <div class="description"> <p>Remove the vehicle including its constraints from the world.</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">world</code> <span class="type"><a href="../classes/World.html" class="crosslink">World</a></span> <div class="param-description"> </div> </li> </ul> </div> </div> <div id="method_setBrake" class="method item"> <h3 class="name"><code>setBrake</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>brake</code> </li> <li class="arg"> <code>wheelIndex</code> </li> </ul><span class="paren">)</span> </div> <div class="meta"> <p> Defined in <a href="../files/src_objects_RaycastVehicle.js.html#l112"><code>src&#x2F;objects&#x2F;RaycastVehicle.js:112</code></a> </p> </div> <div class="description"> <p>Set the braking force of a wheel</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">brake</code> <span class="type">Number</span> <div class="param-description"> </div> </li> <li class="param"> <code class="param-name">wheelIndex</code> <span class="type">Integer</span> <div class="param-description"> </div> </li> </ul> </div> </div> <div id="method_setSteeringValue" class="method item"> <h3 class="name"><code>setSteeringValue</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>value</code> </li> <li class="arg"> <code>wheelIndex</code> </li> </ul><span class="paren">)</span> </div> <div class="meta"> <p> Defined in <a href="../files/src_objects_RaycastVehicle.js.html#l89"><code>src&#x2F;objects&#x2F;RaycastVehicle.js:89</code></a> </p> </div> <div class="description"> <p>Set the steering value of a wheel.</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">value</code> <span class="type">Number</span> <div class="param-description"> </div> </li> <li class="param"> <code class="param-name">wheelIndex</code> <span class="type">Integer</span> <div class="param-description"> </div> </li> </ul> </div> </div> <div id="method_updateWheelTransform" class="method item"> <h3 class="name"><code>updateWheelTransform</code></h3> <div class="args"> <span class="paren">(</span><ul class="args-list inline commas"> <li class="arg"> <code>wheelIndex</code> </li> </ul><span class="paren">)</span> </div> <div class="meta"> <p> Defined in <a href="../files/src_objects_RaycastVehicle.js.html#l380"><code>src&#x2F;objects&#x2F;RaycastVehicle.js:380</code></a> </p> </div> <div class="description"> <p>Update one of the wheel transform. Note when rendering wheels: during each step, wheel transforms are updated BEFORE the chassis; ie. their position becomes invalid after the step. Thus when you render wheels, you must update wheel transforms before rendering them. See raycastVehicle demo for an example.</p> </div> <div class="params"> <h4>Parameters:</h4> <ul class="params-list"> <li class="param"> <code class="param-name">wheelIndex</code> <span class="type">Integer</span> <div class="param-description"> <p>The wheel index to update.</p> </div> </li> </ul> </div> </div> </div> <div id="properties" class="api-class-tabpanel"> <h2 class="off-left">Properties</h2> <div id="property_chassisBody" class="property item"> <h3 class="name"><code>chassisBody</code></h3> <span class="type"><a href="../classes/Body.html" class="crosslink">Body</a></span> <div class="meta"> <p> Defined in <a href="../files/src_objects_RaycastVehicle.js.html#l22"><code>src&#x2F;objects&#x2F;RaycastVehicle.js:22</code></a> </p> </div> <div class="description"> </div> </div> <div id="property_indexForwardAxis" class="property item"> <h3 class="name"><code>indexForwardAxis</code></h3> <span class="type">Integer</span> <div class="meta"> <p> Defined in <a href="../files/src_objects_RaycastVehicle.js.html#l51"><code>src&#x2F;objects&#x2F;RaycastVehicle.js:51</code></a> </p> </div> <div class="description"> <p>Index of the forward axis, 0=x, 1=y, 2=z</p> </div> <p><strong>Default:</strong> 0</p> </div> <div id="property_indexRightAxis" class="property item"> <h3 class="name"><code>indexRightAxis</code></h3> <span class="type">Integer</span> <div class="meta"> <p> Defined in <a href="../files/src_objects_RaycastVehicle.js.html#l44"><code>src&#x2F;objects&#x2F;RaycastVehicle.js:44</code></a> </p> </div> <div class="description"> <p>Index of the right axis, 0=x, 1=y, 2=z</p> </div> <p><strong>Default:</strong> 1</p> </div> <div id="property_indexUpAxis" class="property item"> <h3 class="name"><code>indexUpAxis</code></h3> <span class="type">Integer</span> <div class="meta"> <p> Defined in <a href="../files/src_objects_RaycastVehicle.js.html#l58"><code>src&#x2F;objects&#x2F;RaycastVehicle.js:58</code></a> </p> </div> <div class="description"> <p>Index of the up axis, 0=x, 1=y, 2=z</p> </div> <p><strong>Default:</strong> 2</p> </div> <div id="property_sliding" class="property item"> <h3 class="name"><code>sliding</code></h3> <span class="type">Boolean</span> <div class="meta"> <p> Defined in <a href="../files/src_objects_RaycastVehicle.js.html#l33"><code>src&#x2F;objects&#x2F;RaycastVehicle.js:33</code></a> </p> </div> <div class="description"> <p>Will be set to true if the car is sliding.</p> </div> </div> <div id="property_wheelInfos" class="property item"> <h3 class="name"><code>wheelInfos</code></h3> <span class="type">Array</span> <div class="meta"> <p> Defined in <a href="../files/src_objects_RaycastVehicle.js.html#l27"><code>src&#x2F;objects&#x2F;RaycastVehicle.js:27</code></a> </p> </div> <div class="description"> <p>An array of WheelInfo objects.</p> </div> </div> <div id="property_world" class="property item"> <h3 class="name"><code>world</code></h3> <span class="type"><a href="../classes/World.html" class="crosslink">World</a></span> <div class="meta"> <p> Defined in <a href="../files/src_objects_RaycastVehicle.js.html#l39"><code>src&#x2F;objects&#x2F;RaycastVehicle.js:39</code></a> </p> </div> <div class="description"> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> <script src="../assets/vendor/prettify/prettify-min.js"></script> <script>prettyPrint();</script> <script src="../assets/js/yui-prettify.js"></script> <script src="../assets/../api.js"></script> <script src="../assets/js/api-filter.js"></script> <script src="../assets/js/api-list.js"></script> <script src="../assets/js/api-search.js"></script> <script src="../assets/js/apidocs.js"></script> </body> </html>