npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@missesanderson/wasm-asteroids

v0.1.0

Published

This is a demo of an Asteroids clone written in Rust, rendering to an SVG canvas.

Downloads

2

Readme

SVG Asteroids

This is a demo of an Asteroids clone written in Rust, rendering to an SVG canvas.

Live demo

Architecture

Most communication with the web page is going through an event loop.

Event loop usage looks like this:

    EventLoop::new(Box::new(move |event, event_loop| {
        // process event
    }))

Events are:

    enum Event {
        Destroyed,
        AnimationFrame,
        MouseMove { x: u32, y: u32 },
        KeyDown { code: u32, chr: Option<char>, flags: u32 },
        KeyUp { code: u32, chr: Option<char>, flags: u32 },
    }

Event Loop from Rust side is defined in src/eventloop.rs. It's technically possible to have multiple event loops running on the same page. Event Loops on Rust side need to be explicitly disposed, in order for the JS side to dispose of event loop correctly.

The JS implementation of event loop is located in demo/demo.js automatically subscribes to Mouse and Keyboard events on window object and provides an interface for requestAnimationFrame.

Game logic

Game logic is mostly implemented in src/game.rs, and it's very messy. I don't have a lot of experience making games, and I think I learned some lessons from making this little demo, which I'll take into account.

For now, I'm happy with the result, and I do not plan to refactor this game in the near future.

Rendering

Rendering is done using by setting the path d attribute:

    svg_set_path: (ptr, len) => window.path.setAttributeNS(null, 'd', getStr(Module, ptr, len)),

Rust generates path points in src/render_path.rs, which contains paths for digits, ship, etc.

LICENSE

The MIT License