Tutorial by Examples: f

We can use the child-attached and child-detached events to listen for when the scene attaches or detaches an entity: entity.addEventListener('child-attached', function (evt) { if (evt.detail.el.tagName.toLowerCase() === 'a-box') { console.log('a box element has been attached'); }; }); ...

Systems can help separate logic and behavior from data if desired. We let systems handle the heavy lifting, and components only worry about managing its data through its lifecycle methods: AFRAME.registerSystem('my-component', { createComplexObject: function (data) { // Do calculations ...

There is no strict API for defining how systems manage components. A common pattern is to have components subscribe themselves to the system. The system then has references to all of its components: AFRAME.registerSystem('my-component', { init: function () { this.entities = []; }, ...

AFRAME.registerComponent (name, definition) Register an A-Frame component. We must register components before we use them anywhere in . Meaning from an HTML file, components should come in order before . {string} name - Component name. The component’s public API as represented through an HTML at...

A component holds a bucket of data in the form of one or more component properties. Components use this data to modify entities. Consider an engine component, we might define properties such as horsepower or cylinders. HTML attributes represent component names and the value of those attributes repr...

The schema is an object that defines and describes the property or properties of the component. The schema’s keys are the names of the property, and the schema’s values define the types and values of the property (in case of a multi-property component): Defining schema in your component AFRAME.reg...

Property types primarily define how the schema parses incoming data from the DOM for each property. The parsed data will then be available via the data property on the component's prototype. Below are A-Frame's built-in property types: Property TypeDescriptionDefault ValuearrayParses comma-separ...

We place assets within <a-assets>, and we place <a-assets> within <a-scene>. Assets include: <a-asset-item> - Miscellaneous assets such as 3D models and materials <audio> - Sound files <img> - Image textures <video> - Video textures The scene won't...

Content fetched by <a-asset-item> will be returned as plain text. If we want to use a different response type such as arraybuffer, use <a-asset-item>'s response-type attribute: <a-asset-item response-type="arraybuffer" src="model.gltf"></a-asset-item> ...

A-Frame's animation system can animate different types of properties. vec3 Properties A-Frame has standard vec3 components (i.e., position, rotation, and scale). These components consist of three factors: X, Y, and Z. We can pass three space-delimited numbers to the from and to attributes just a...

<a-scene> <a-assets> <a-mixin id="red" material="color: red"></a-mixin> <a-mixin id="blue" material="color: blue"></a-mixin> <a-mixin id="cube" geometry="primitive: box"></a-mix...

One common use of variable-length argument lists is to implement functions that are a thin wrapper around the printf() family of functions. One such example is a set of error reporting functions. errmsg.h #ifndef ERRMSG_H_INCLUDED #define ERRMSG_H_INCLUDED #include <stdarg.h> #include...

using System; using System.IO; using System.IO.Compression; namespace ConsoleApplication1 { class Program { static void Main(string[] args) { string zipPath = @"c:\example\start.zip"; string extractPath = @"c:\example\extract...

We can load the model by pointing using the ID to an that specifies the src to a file: <a-scene> <a-assets> <!-- At first we load skeletal animation blending JSON as asset --> <a-asset-item id="hand" src="/path/to/hand.json"></a-asset-i...

Using a format string provides information about the expected number and type of the subsequent variadic arguments in such a way as to avoid the need for an explicit count argument or a terminator value. The example below shows a a function that wraps the standard printf() function, only allowing f...

By default, A-Frame scenes inject default lighting, an ambient light and a directional light. These default lights are visible in the DOM with the data-aframe-default-light attribute. Whenever we add any lights, A-Frame removes the default lights from the scene. <!-- Default lighting injected by...

In a pipeline series each function runs parallel to the others, like parallel threads. The first processed object is transmitted to the next pipeline and the next processing is immediately executed in another thread. This explains the high speed gain compared to the standard ForEach @( bigFile_1, b...

If your application does not need any HTTP interface (for example for a console only app), you will want to disable at least Twig and SensioFrameworkExtra Just comment out those lines: app/AppKernel.php $bundles = [ //... // new Symfony\Bundle\TwigBundle\TwigBundle(), // new Sensio\Bundl...

Command git cherry shows the changes which haven't yet been cherry-picked. Example: git checkout master git cherry development ... and see output a bit like this: + 492508acab7b454eee8b805f8ba906056eede0ff - 5ceb5a9077ddb9e78b1e8f24bfc70e674c627949 + b4459544c000f4d51d1ec23f279d9cdb19c1d32b...

Forward messages one object to another by delegates, multicasting these messages to multiple observers.. Step 1:- Create NSObject class of RRMulticastDelegate Step 2:- Following code implement in RRMulticastDelegate.h file #import <Foundation/Foundation.h> @interface RRMulticastDelegate ...