@aidinabedi/playcanvas

<!doctype html> <html lang="en"> <head> <title>pc.ScriptRegistry | PlayCanvas API Reference</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <link rel="icon" type="image/png" href="images/playcanvas-favicon.png"> <link href="styles/styles.css" rel="stylesheet"> <link href="styles/playcanvas-theme.css" rel="stylesheet"> <script src="scripts/interface.js"></script> <script src="scripts/highlight.min.js"></script> <script>hljs.initHighlightingOnLoad();</script> </head> <body> <header> <nav class="header-width"> <a href="/" class="header-title"><img src="images/playcanvas-manual.png"></a> <ul class="header-menu"> <li class="user-manual"><a href="https://developer.playcanvas.com/en/user-manual/">User Manual</a></li> <li class="tutorials"><a href="https://developer.playcanvas.com/en/tutorials">Tutorials</a></li> <li class="forum"><a href="https://forum.playcanvas.com/" target="_blank">Forum</a></li> <li class="api active"><a href="/api/">API Reference</a></li> </ul> </nav> <div class="header-content header-page header-width"> <h1><span class="font-icon"></span>API Reference</h1> <input id="search" class="search" type="text" placeholder="Search"></input> </div> </header> <div class="container content-width"> <nav class="sidebar"> <div class="sidebarFilter"> <input id="filter-input" type="text" placeholder="Filter"> </div> <ul> <li id="nav-pc"><a href="pc.html">pc</a></li> <li id="nav-pc.callbacks"><a href="pc.callbacks.html">pc.callbacks</a></li> <li id="nav-pc.guid"><a href="pc.guid.html">pc.guid</a></li> <li id="nav-pc.math"><a href="pc.math.html">pc.math</a></li> <li id="nav-pc.path"><a href="pc.path.html">pc.path</a></li> <li id="nav-pc.platform"><a href="pc.platform.html">pc.platform</a></li> <li id="nav-pc.script"><a href="pc.script.html">pc.script</a></li> <li id="nav-pc.string"><a href="pc.string.html">pc.string</a></li> <li id="nav-pc.Animation"><a href="pc.Animation.html">Animation</a></li> <li id="nav-pc.AnimationComponent"><a 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href="pc.ElementDragHelper.html">ElementDragHelper</a></li> <li id="nav-pc.ElementInput"><a href="pc.ElementInput.html">ElementInput</a></li> <li id="nav-pc.ElementInputEvent"><a href="pc.ElementInputEvent.html">ElementInputEvent</a></li> <li id="nav-pc.ElementMouseEvent"><a href="pc.ElementMouseEvent.html">ElementMouseEvent</a></li> <li id="nav-pc.ElementTouchEvent"><a href="pc.ElementTouchEvent.html">ElementTouchEvent</a></li> <li id="nav-pc.Entity"><a href="pc.Entity.html">Entity</a></li> <li id="nav-pc.EventHandler"><a href="pc.EventHandler.html">EventHandler</a></li> <li id="nav-pc.Font"><a href="pc.Font.html">Font</a></li> <li id="nav-pc.FontHandler"><a href="pc.FontHandler.html">FontHandler</a></li> <li id="nav-pc.ForwardRenderer"><a href="pc.ForwardRenderer.html">ForwardRenderer</a></li> <li id="nav-pc.Frustum"><a href="pc.Frustum.html">Frustum</a></li> <li id="nav-pc.GamePads"><a href="pc.GamePads.html">GamePads</a></li> <li id="nav-pc.GraphicsDevice"><a href="pc.GraphicsDevice.html">GraphicsDevice</a></li> <li id="nav-pc.GraphNode"><a href="pc.GraphNode.html">GraphNode</a></li> <li id="nav-pc.Http"><a href="pc.Http.html">Http</a></li> <li id="nav-pc.I18n"><a href="pc.I18n.html">I18n</a></li> <li id="nav-pc.IndexBuffer"><a href="pc.IndexBuffer.html">IndexBuffer</a></li> <li id="nav-pc.Keyboard"><a href="pc.Keyboard.html">Keyboard</a></li> <li id="nav-pc.KeyboardEvent"><a href="pc.KeyboardEvent.html">KeyboardEvent</a></li> <li id="nav-pc.Layer"><a href="pc.Layer.html">Layer</a></li> <li id="nav-pc.LayerComposition"><a href="pc.LayerComposition.html">LayerComposition</a></li> <li id="nav-pc.LayoutChildComponent"><a href="pc.LayoutChildComponent.html">LayoutChildComponent</a></li> <li id="nav-pc.LayoutChildComponentSystem"><a href="pc.LayoutChildComponentSystem.html">LayoutChildComponentSystem</a></li> <li id="nav-pc.LayoutGroupComponent"><a href="pc.LayoutGroupComponent.html">LayoutGroupComponent</a></li> <li id="nav-pc.LayoutGroupComponentSystem"><a href="pc.LayoutGroupComponentSystem.html">LayoutGroupComponentSystem</a></li> <li id="nav-pc.LightComponent"><a href="pc.LightComponent.html">LightComponent</a></li> <li id="nav-pc.LightComponentSystem"><a href="pc.LightComponentSystem.html">LightComponentSystem</a></li> <li id="nav-pc.Lightmapper"><a href="pc.Lightmapper.html">Lightmapper</a></li> <li id="nav-pc.Mat3"><a href="pc.Mat3.html">Mat3</a></li> <li id="nav-pc.Mat4"><a href="pc.Mat4.html">Mat4</a></li> <li id="nav-pc.Material"><a href="pc.Material.html">Material</a></li> <li id="nav-pc.MaterialHandler"><a href="pc.MaterialHandler.html">MaterialHandler</a></li> <li id="nav-pc.Mesh"><a href="pc.Mesh.html">Mesh</a></li> <li id="nav-pc.MeshInstance"><a href="pc.MeshInstance.html">MeshInstance</a></li> <li id="nav-pc.Model"><a href="pc.Model.html">Model</a></li> <li id="nav-pc.ModelComponent"><a href="pc.ModelComponent.html">ModelComponent</a></li> <li id="nav-pc.ModelComponentSystem"><a href="pc.ModelComponentSystem.html">ModelComponentSystem</a></li> <li id="nav-pc.ModelHandler"><a href="pc.ModelHandler.html">ModelHandler</a></li> <li id="nav-pc.Morph"><a href="pc.Morph.html">Morph</a></li> <li id="nav-pc.MorphInstance"><a href="pc.MorphInstance.html">MorphInstance</a></li> <li id="nav-pc.MorphTarget"><a href="pc.MorphTarget.html">MorphTarget</a></li> <li id="nav-pc.Mouse"><a href="pc.Mouse.html">Mouse</a></li> <li id="nav-pc.MouseEvent"><a href="pc.MouseEvent.html">MouseEvent</a></li> <li id="nav-pc.Node"><a href="pc.Node.html">Node</a></li> <li id="nav-pc.OrientedBox"><a href="pc.OrientedBox.html">OrientedBox</a></li> <li id="nav-pc.ParticleSystemComponent"><a href="pc.ParticleSystemComponent.html">ParticleSystemComponent</a></li> <li id="nav-pc.ParticleSystemComponentSystem"><a href="pc.ParticleSystemComponentSystem.html">ParticleSystemComponentSystem</a></li> <li id="nav-pc.Picker"><a href="pc.Picker.html">Picker</a></li> <li id="nav-pc.PostEffect"><a href="pc.PostEffect.html">PostEffect</a></li> <li id="nav-pc.PostEffectQueue"><a href="pc.PostEffectQueue.html">PostEffectQueue</a></li> <li id="nav-pc.Quat"><a href="pc.Quat.html">Quat</a></li> <li id="nav-pc.Ray"><a href="pc.Ray.html">Ray</a></li> <li id="nav-pc.RaycastResult"><a href="pc.RaycastResult.html">RaycastResult</a></li> <li id="nav-pc.RenderTarget"><a href="pc.RenderTarget.html">RenderTarget</a></li> <li id="nav-pc.ResourceHandler"><a href="pc.ResourceHandler.html">ResourceHandler</a></li> <li id="nav-pc.ResourceLoader"><a href="pc.ResourceLoader.html">ResourceLoader</a></li> <li id="nav-pc.RigidBodyComponent"><a href="pc.RigidBodyComponent.html">RigidBodyComponent</a></li> <li id="nav-pc.RigidBodyComponentSystem"><a href="pc.RigidBodyComponentSystem.html">RigidBodyComponentSystem</a></li> <li id="nav-pc.Scene"><a href="pc.Scene.html">Scene</a></li> <li id="nav-pc.SceneHandler"><a href="pc.SceneHandler.html">SceneHandler</a></li> <li id="nav-pc.ScopeId"><a href="pc.ScopeId.html">ScopeId</a></li> <li id="nav-pc.ScopeSpace"><a href="pc.ScopeSpace.html">ScopeSpace</a></li> <li id="nav-pc.ScreenComponent"><a href="pc.ScreenComponent.html">ScreenComponent</a></li> <li id="nav-pc.ScreenComponentSystem"><a href="pc.ScreenComponentSystem.html">ScreenComponentSystem</a></li> <li id="nav-pc.ScriptAttributes"><a href="pc.ScriptAttributes.html">ScriptAttributes</a></li> <li id="nav-pc.ScriptComponent"><a href="pc.ScriptComponent.html">ScriptComponent</a></li> <li id="nav-pc.ScriptComponentSystem"><a href="pc.ScriptComponentSystem.html">ScriptComponentSystem</a></li> <li id="nav-pc.ScriptHandler"><a href="pc.ScriptHandler.html">ScriptHandler</a></li> <li id="nav-pc.ScriptRegistry"><a href="pc.ScriptRegistry.html">ScriptRegistry</a></li> <li id="nav-pc.ScriptType"><a href="pc.ScriptType.html">ScriptType</a></li> <li id="nav-pc.ScrollbarComponent"><a href="pc.ScrollbarComponent.html">ScrollbarComponent</a></li> <li id="nav-pc.ScrollbarComponentSystem"><a href="pc.ScrollbarComponentSystem.html">ScrollbarComponentSystem</a></li> <li id="nav-pc.ScrollViewComponent"><a href="pc.ScrollViewComponent.html">ScrollViewComponent</a></li> <li id="nav-pc.ScrollViewComponentSystem"><a href="pc.ScrollViewComponentSystem.html">ScrollViewComponentSystem</a></li> <li id="nav-pc.Shader"><a href="pc.Shader.html">Shader</a></li> <li id="nav-pc.SingleContactResult"><a href="pc.SingleContactResult.html">SingleContactResult</a></li> <li id="nav-pc.Skeleton"><a href="pc.Skeleton.html">Skeleton</a></li> <li id="nav-pc.Skin"><a href="pc.Skin.html">Skin</a></li> <li id="nav-pc.SkinInstance"><a href="pc.SkinInstance.html">SkinInstance</a></li> <li id="nav-pc.Sound"><a href="pc.Sound.html">Sound</a></li> <li id="nav-pc.SoundComponent"><a href="pc.SoundComponent.html">SoundComponent</a></li> <li id="nav-pc.SoundComponentSystem"><a href="pc.SoundComponentSystem.html">SoundComponentSystem</a></li> <li id="nav-pc.SoundInstance"><a href="pc.SoundInstance.html">SoundInstance</a></li> <li id="nav-pc.SoundInstance3d"><a href="pc.SoundInstance3d.html">SoundInstance3d</a></li> <li id="nav-pc.SoundManager"><a href="pc.SoundManager.html">SoundManager</a></li> <li id="nav-pc.SoundSlot"><a href="pc.SoundSlot.html">SoundSlot</a></li> <li id="nav-pc.Sprite"><a href="pc.Sprite.html">Sprite</a></li> <li id="nav-pc.SpriteAnimationClip"><a href="pc.SpriteAnimationClip.html">SpriteAnimationClip</a></li> <li id="nav-pc.SpriteComponent"><a href="pc.SpriteComponent.html">SpriteComponent</a></li> <li id="nav-pc.SpriteComponentSystem"><a href="pc.SpriteComponentSystem.html">SpriteComponentSystem</a></li> <li id="nav-pc.SpriteHandler"><a href="pc.SpriteHandler.html">SpriteHandler</a></li> <li id="nav-pc.StandardMaterial"><a href="pc.StandardMaterial.html">StandardMaterial</a></li> <li id="nav-pc.StencilParameters"><a href="pc.StencilParameters.html">StencilParameters</a></li> <li id="nav-pc.Tags"><a href="pc.Tags.html">Tags</a></li> <li id="nav-pc.Texture"><a href="pc.Texture.html">Texture</a></li> <li id="nav-pc.TextureAtlas"><a href="pc.TextureAtlas.html">TextureAtlas</a></li> <li id="nav-pc.TextureAtlasHandler"><a href="pc.TextureAtlasHandler.html">TextureAtlasHandler</a></li> <li id="nav-pc.TextureHandler"><a href="pc.TextureHandler.html">TextureHandler</a></li> <li id="nav-pc.Touch"><a href="pc.Touch.html">Touch</a></li> <li id="nav-pc.TouchDevice"><a href="pc.TouchDevice.html">TouchDevice</a></li> <li id="nav-pc.TouchEvent"><a href="pc.TouchEvent.html">TouchEvent</a></li> <li id="nav-pc.TransformFeedback"><a href="pc.TransformFeedback.html">TransformFeedback</a></li> <li id="nav-pc.Vec2"><a href="pc.Vec2.html">Vec2</a></li> <li id="nav-pc.Vec3"><a href="pc.Vec3.html">Vec3</a></li> <li id="nav-pc.Vec4"><a href="pc.Vec4.html">Vec4</a></li> <li id="nav-pc.VertexAttributeDescription"><a href="pc.VertexAttributeDescription.html">VertexAttributeDescription</a></li> <li id="nav-pc.VertexAttributeElement"><a href="pc.VertexAttributeElement.html">VertexAttributeElement</a></li> <li id="nav-pc.VertexBuffer"><a href="pc.VertexBuffer.html">VertexBuffer</a></li> <li id="nav-pc.VertexFormat"><a href="pc.VertexFormat.html">VertexFormat</a></li> <li id="nav-pc.VertexIterator"><a href="pc.VertexIterator.html">VertexIterator</a></li> <li id="nav-pc.VertexIteratorAccessor"><a href="pc.VertexIteratorAccessor.html">VertexIteratorAccessor</a></li> <li id="nav-pc.XrInput"><a href="pc.XrInput.html">XrInput</a></li> <li id="nav-pc.XrInputSource"><a href="pc.XrInputSource.html">XrInputSource</a></li> <li id="nav-pc.XrManager"><a href="pc.XrManager.html">XrManager</a></li> </ul> </nav> <div class='sidebarToggle'><span></span>Class List</div> <main class="cls"> <h1>pc.ScriptRegistry</h1> <p class="extends">Extends: <a href="pc.EventHandler.html">pc.EventHandler</a></p> <p><p>Container for all Script Types that are available to this application.</p></p>  <h1>Summary</h1>      <h3>Methods</h3> <table class="properties"> <tr> <td><a href="#add">add</a></td><td><p>Add <a href="pc.ScriptType.html">pc.ScriptType</a> to registry.</td> </tr> <tr> <td><a href="#get">get</a></td><td><p>Get <a href="pc.ScriptType.html">pc.ScriptType</a> by name.</td> </tr> <tr> <td><a href="#has">has</a></td><td><p>Check if a <a href="pc.ScriptType.html">pc.ScriptType</a> with the specified name is in the registry.</td> </tr> <tr> <td><a href="#list">list</a></td><td><p>Get list of all <a href="pc.ScriptType.html">pc.ScriptType</a>s from registry.</td> </tr> <tr> <td><a href="#remove">remove</a></td><td><p>Remove <a href="pc.ScriptType.html">pc.ScriptType</a>.</td> </tr> </table>  <h2>Inherited</h2>    <h3>Methods</h3> <table class="properties"> <tr> <td><a href="#fire">fire</a></td><td><p>Fire an event, all additional arguments are passed on to the event listener.</td> </tr> <tr> <td><a href="#hasEvent">hasEvent</a></td><td><p>Test if there are any handlers bound to an event name.</td> </tr> <tr> <td><a href="#off">off</a></td><td><p>Detach an event handler from an event.</td> </tr> <tr> <td><a href="#on">on</a></td><td><p>Attach an event handler to an event.</td> </tr> <tr> <td><a href="#once">once</a></td><td><p>Attach an event handler to an event.</td> </tr> </table>  <h1>Details</h1>    <h2>Constructor</h2>  <div id="ScriptRegistry"> <h3 class="methodname">ScriptRegistry(app) <a class="font-icon" href="#ScriptRegistry"></a></h3> <p><p>Create an instance of a pc.ScriptRegistry. Note: PlayCanvas scripts can access the Script Registry from inside the application with <a href="pc.Application.html#scripts">pc.Application#scripts</a> <a href="pc.html#ADDRESS_REPEAT">pc.ADDRESS_REPEAT</a>.</p></p> <h4>Parameters</h4> <table> <tr> <td>app</td><td><a href="pc.Application.html">pc.Application</a></td><td><p>Application to attach registry to.</p></td> </tr> </table> </div>   <h2>Methods</h2> <div id="add"> <h3 class="methodname">add(script) <a class="font-icon" href="#add"></a></h3> <p><p>Add <a href="pc.ScriptType.html">pc.ScriptType</a> to registry. Note: when <a href="pc.html#createScript">pc.createScript</a> is called, it will add the <a href="pc.ScriptType.html">pc.ScriptType</a> to the registry automatically. If a script already exists in registry, and the new script has a <code>swap</code> method defined, it will perform code hot swapping automatically in async manner.</p></p> <pre><code class="javascript">var PlayerController = pc.createScript('playerController'); // playerController Script Type will be added to pc.ScriptRegistry automatically console.log(app.scripts.has('playerController')); // outputs true</code></pre> <h4>Parameters</h4> <table> <tr> <td>script</td><td><a href="pc.ScriptType.html">typeof pc.ScriptType</a></td><td><p>Script Type that is created using <a href="pc.html#createScript">pc.createScript</a>.</p></td> </tr> </table> <h4>Returns</h4> <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean">boolean</a> <p>True if added for the first time or false if script already exists.</p> </div> <div id="get"> <h3 class="methodname">get(name) <a class="font-icon" href="#get"></a></h3> <p><p>Get <a href="pc.ScriptType.html">pc.ScriptType</a> by name.</p></p> <pre><code class="javascript">var PlayerController = app.scripts.get('playerController');</code></pre> <h4>Parameters</h4> <table> <tr> <td>name</td><td><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String">string</a></td><td><p>Name of a <a href="pc.ScriptType.html">pc.ScriptType</a>.</p></td> </tr> </table> <h4>Returns</h4> <a href="pc.ScriptType.html">typeof pc.ScriptType</a> <p>The Script Type if it exists in the registry or null otherwise.</p> </div> <div id="has"> <h3 class="methodname">has(name) <a class="font-icon" href="#has"></a></h3> <p><p>Check if a <a href="pc.ScriptType.html">pc.ScriptType</a> with the specified name is in the registry.</p></p> <pre><code class="javascript">if (app.scripts.has('playerController')) { // playerController is in pc.ScriptRegistry }</code></pre> <h4>Parameters</h4> <table> <tr> <td>name</td><td><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String">string</a></td><td><p>Name of a <a href="pc.ScriptType.html">pc.ScriptType</a>.</p></td> </tr> </table> <h4>Returns</h4> <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean">boolean</a> <p>True if <a href="pc.ScriptType.html">pc.ScriptType</a> is in registry.</p> </div> <div id="list"> <h3 class="methodname">list() <a class="font-icon" href="#list"></a></h3> <p><p>Get list of all <a href="pc.ScriptType.html">pc.ScriptType</a>s from registry.</p></p> <pre><code class="javascript">// logs array of all Script Type names available in registry console.log(app.scripts.list().map(function (o) { return o.name; }));</code></pre> <h4>Returns</h4> <a href="pc.ScriptType.html">(typeof pc.ScriptType)[]</a> <p>list of all <a href="pc.ScriptType.html">pc.ScriptType</a>s in registry.</p> </div> <div id="remove"> <h3 class="methodname">remove(name) <a class="font-icon" href="#remove"></a></h3> <p><p>Remove <a href="pc.ScriptType.html">pc.ScriptType</a>.</p></p> <pre><code class="javascript">app.scripts.remove('playerController');</code></pre> <h4>Parameters</h4> <table> <tr> <td>name</td><td><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String">string</a></td><td><p>Name of a <a href="pc.ScriptType.html">pc.ScriptType</a> to remove.</p></td> </tr> </table> <h4>Returns</h4> <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean">boolean</a> <p>True if removed or False if already not in registry.</p> </div>  <h2>Inherited</h2>   <h2>Methods</h2> <div id="fire"> <h3 class="methodname">fire(name, [arg1], [arg2], [arg3], [arg4], [arg5], [arg6], [arg7], [arg8]) <a class="font-icon" href="#fire"></a></h3> <p><p>Fire an event, all additional arguments are passed on to the event listener.</p></p> <pre><code class="javascript">obj.fire('test', 'This is the message');</code></pre> <h4>Parameters</h4> <table> <tr> <td>name</td><td><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object">object</a></td><td><p>Name of event to fire.</p></td> </tr> <tr> <td>arg1</td><td><a href="#">*</a></td><td><p>First argument that is passed to the event handler.</p></td> </tr> <tr> <td>arg2</td><td><a href="#">*</a></td><td><p>Second argument that is passed to the event handler.</p></td> </tr> <tr> <td>arg3</td><td><a href="#">*</a></td><td><p>Third argument that is passed to the event handler.</p></td> </tr> <tr> <td>arg4</td><td><a href="#">*</a></td><td><p>Fourth argument that is passed to the event handler.</p></td> </tr> <tr> <td>arg5</td><td><a href="#">*</a></td><td><p>Fifth argument that is passed to the event handler.</p></td> </tr> <tr> <td>arg6</td><td><a href="#">*</a></td><td><p>Sixth argument that is passed to the event handler.</p></td> </tr> <tr> <td>arg7</td><td><a href="#">*</a></td><td><p>Seventh argument that is passed to the event handler.</p></td> </tr> <tr> <td>arg8</td><td><a href="#">*</a></td><td><p>Eighth argument that is passed to the event handler.</p></td> </tr> </table> <h4>Returns</h4> <a href="pc.EventHandler.html">pc.EventHandler</a> <p>Self for chaining.</p> </div> <div id="hasEvent"> <h3 class="methodname">hasEvent(name) <a class="font-icon" href="#hasEvent"></a></h3> <p><p>Test if there are any handlers bound to an event name.</p></p> <pre><code class="javascript">obj.on('test', function () { }); // bind an event to 'test' obj.hasEvent('test'); // returns true obj.hasEvent('hello'); // returns false</code></pre> <h4>Parameters</h4> <table> <tr> <td>name</td><td><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String">string</a></td><td><p>The name of the event to test.</p></td> </tr> </table> <h4>Returns</h4> <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean">boolean</a> <p>True if the object has handlers bound to the specified event name.</p> </div> <div id="off"> <h3 class="methodname">off([name], [callback], [scope]) <a class="font-icon" href="#off"></a></h3> <p><p>Detach an event handler from an event. If callback is not provided then all callbacks are unbound from the event, if scope is not provided then all events with the callback will be unbound.</p></p> <pre><code class="javascript">var handler = function () { }; obj.on('test', handler); obj.off(); // Removes all events obj.off('test'); // Removes all events called 'test' obj.off('test', handler); // Removes all handler functions, called 'test' obj.off('test', handler, this); // Removes all hander functions, called 'test' with scope this</code></pre> <h4>Parameters</h4> <table> <tr> <td>name</td><td><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String">string</a></td><td><p>Name of the event to unbind.</p></td> </tr> <tr> <td>callback</td><td><a href="pc.callbacks.html#HandleEvent">pc.callbacks.HandleEvent</a></td><td><p>Function to be unbound.</p></td> </tr> <tr> <td>scope</td><td><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object">object</a></td><td><p>Scope that was used as the this when the event is fired.</p></td> </tr> </table> <h4>Returns</h4> <a href="pc.EventHandler.html">pc.EventHandler</a> <p>Self for chaining.</p> </div> <div id="on"> <h3 class="methodname">on(name, callback, [scope]) <a class="font-icon" href="#on"></a></h3> <p><p>Attach an event handler to an event.</p></p> <pre><code class="javascript">obj.on('test', function (a, b) { console.log(a + b); }); obj.fire('test', 1, 2); // prints 3 to the console</code></pre> <h4>Parameters</h4> <table> <tr> <td>name</td><td><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String">string</a></td><td><p>Name of the event to bind the callback to.</p></td> </tr> <tr> <td>callback</td><td><a href="pc.callbacks.html#HandleEvent">pc.callbacks.HandleEvent</a></td><td><p>Function that is called when event is fired. Note the callback is limited to 8 arguments.</p></td> </tr> <tr> <td>scope</td><td><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object">object</a></td><td><p>Object to use as 'this' when the event is fired, defaults to current this.</p></td> </tr> </table> <h4>Returns</h4> <a href="pc.EventHandler.html">pc.EventHandler</a> <p>Self for chaining.</p> </div> <div id="once"> <h3 class="methodname">once(name, callback, [scope]) <a class="font-icon" href="#once"></a></h3> <p><p>Attach an event handler to an event. This handler will be removed after being fired once.</p></p> <pre><code class="javascript">obj.once('test', function (a, b) { console.log(a + b); }); obj.fire('test', 1, 2); // prints 3 to the console obj.fire('test', 1, 2); // not going to get handled</code></pre> <h4>Parameters</h4> <table> <tr> <td>name</td><td><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String">string</a></td><td><p>Name of the event to bind the callback to.</p></td> </tr> <tr> <td>callback</td><td><a href="pc.callbacks.html#HandleEvent">pc.callbacks.HandleEvent</a></td><td><p>Function that is called when event is fired. Note the callback is limited to 8 arguments.</p></td> </tr> <tr> <td>scope</td><td><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object">object</a></td><td><p>Object to use as 'this' when the event is fired, defaults to current this.</p></td> </tr> </table> <h4>Returns</h4> <a href="pc.EventHandler.html">pc.EventHandler</a> <p>Self for chaining.</p> </div>  </main> </div> </body> </html>