Do you remember NIBBLES.BAS from your old DOS Computer? Well I do. But I also remember "Der Wurm"/"The Worm" by "Digital Nightmares". I spent days playing it as a child. Also the multi player mode was a lot of fun.

Wibbles (Nibbles on the Web) is a Snake variant that takes the concept of "Der Wurm"/"The Worm" and ports it to the web.

Why?

In a nostalgic moment I remembered The Worm and found it on archive.org. It was unplayable, mainly because the animation between levels was too slooooow. Also the graphics are unproportional and the longer the worm got, the slower it moved.

I often browsed https://opengameart.org and wished I had a good idea for a side project game, where I could use some of these sprites.

Since I wanted to practice clean code and TDD I was looking for a side project anyway. (Spoiler: Clean Code is a work in progress. I failed at TDD.)

Since side projects are something that never gets done (I got side-tracked by the multiplayer part). I defined an MVP and hoped to release it, before the next thing got interesting.

This is it - The MVP of Wibbles:

Play it on https://htho.github.io/wibbles/

See the source on https://github.com/htho/wibbles/

State

Of course its in an early alpha state, but already playable.

There are only two maps which are quickly played. But it is easy to add more maps.

A lot of stuff is missing. Like an UI with information about the game, level, points and the like.

I'd like to implement a multi-player mode and share my experiences doing that.

The tiles have a border in Firefox.

A Series?

This is a series of articles because I want to share valueable insights I got when I created the game. These are some topics I'd like to write about:

• I use the Dispose Pattern to make sure EventListeners are removed when I don't need them anymore.
• For the multiplayer mode I prototyped a signaling server for WebRTC in php. As I am used to JavaScript/TypeScript tooling, writing php only using free tooling feels like editing in notepad again.
• I reverse engineered some aspects of the original game digging through the binaries. Although I don't use any of them, I think some people might find that interesting.
• Rendering/Algorithms: NIBBLES.BAS and Snake are very simple because they move one tile at a time. For wibbles stuff gets complicated because movement is not time dependent but frame dependent.
• More Patterns...

And Now?

Please give the game a try. I am looking forward to get your feedback. I even take contributions on GitHub.

Have Fun!