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The worker simply returns the message that is passed to it. While going through this process we’ll explain some of the core features of the framework.

There are lots of options that can be placed in this object and as you expand on your Phaser knowledge you’ll encounter more of them. URL, and an https: There are a number of bottlenecks preventing interesting applications from being ported say, from server-heavy implementations to client-side JavaScript. To see the speed improvement of transferrables, check out this DEMO.

An instance of a Phaser.

Making your first Phaser 3 game: Part 1 – Introduction – Learn – Phaser

Asynchronous events are processed after the current executing script has yielded. Assuming your main app is running from http: In Phaser 3 this is no longer the case and it’s no longer useful to store the game instance in a global variable.

The method takes zero or more strings representing the filenames for the resources to import. Thus, the previous example could also be written as:. One way to utilize importScripts in an inline worker is to “inject” the current url of your main script is running from by passing it to the inline worker and constructing the absolute URL manually. If an error occurs while a worker is executing, the an ErrorEvent is fired.


Download the resources for this tutorial and unzip them into your web root. With Transferable Objects, data is transferred from one context to another.

It is not recommended to run your primary browser with this flag set. Fortunately, the latter aapok quickly becoming a thing of the past as browser vendors rapidly improve the speed of their JavaScript engines.

JavaScript Garden: JavaScript dokumentáció az alapokról | Janos’s blog

The latest versions of the modern browsers support passing a JSON object. If you’re creating many Blob URLs, it’s a good idea to release references that are no longer needed. However, unlike pass-by-reference, the ‘version’ from the calling context is no longer available once transferred to the new context.

Before you go spawning a worker farm, be cautious about hogging too many of the user’s system resources. That code is extracted as a string using document.

When postMessage is called from the main page, our worker handles that message by defining an onmessage handler for the message event.

Here is an example of setting up an onerror event handler to print the properties of uavascript error:. Here are a few more ideas to get your brain churning:. Script execution happens within a single thread.

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But in this tutorial we’re just going to set the renderer, dimensions and a default Scene. As a result, the code that they javascropt needs to be contained in a separate file. Making your first Phaser 3 game.

Welcome to our first tutorial on Making a Game with Phaser 3. Thus, you cannot load a script from a data: But before we do that, the first thing to do is create a new Worker object in your main page. This will insure the external script is imported from the same origin. Unfortunately all of that can’t be simultaneous due to limitations in browsers’ JavaScript runtime. Web Workers allow you to do things like fire up long-running scripts to handle computationally intensive tasks, but without blocking the UI or other scripts to handle user interactions.


This is great for further breaking up javasctipt tasks at runtime. JavaScript is a single-threaded environment, meaning multiple scripts cannot run at the same time. Due to their multi-threaded behavior, web workers only has access to a subset of JavaScript’s features:.

Making your first Phaser 3 game

It should only be used for testing purposes and not regular browsing. Also make sure you go through the Getting Started Guideit will show you how to download the framework, set up a local development environment, and give you a glimpse of the structure of a Phaser project and its core functions.

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javasceipt If the path to your worker returns anthe worker will fail silently. Web Workers run in an isolated thread. Game object is assigned to a local variable called game and the configuration object is passed to it. For example, when transferring an ArrayBuffer from your main app to Worker, the original ArrayBuffer is cleared and no longer usable. To combat the perf hit, you can use Transferable Objects. Its contents are quiet literally transferred to the Worker context.

Alternatively, you could set the onmessage event handler directly though addEventListener is always encouraged by JavaScript ninjas.

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