botnet VS proposals

I was/am working on a project (https://github.com/JMS55/botnet), where users upload scripts compiled to WASM to control entities on a game server, so that they can write custom behavior.

Never heard of extism before, but second using WASM for plugins/scripting/extensions. I'm using it for botnet(1). Each player uploads a WASM program to control their bots. Both the server and the bot SDK are written in Rust, and can share some code.

4. Speed

I'm hoping to write my thesis for my master's degree on this topic this year. I'm also in the process of writing a game like screeps, where users provide a WASM script to control units for an RTS-style game (without combat though) https://github.com/JMS55/botnet.

It's amazing how simple it is to constrain memory usage, runtime duration, and secure exported functions to a WASM VM. Performance is also great - currently about ~6 microseconds per tick per unit, up to ~200 microseconds when doing expensive pathfinding. All that, while letting you program your units in Rust - the same language as the server is written in, while being able to share code with the server, and not having to use something more script-y like lua.

The boilerplate sucks, but it works well when you don't need a ton of different functions. I use wasm as a scripting language for running isolated untrusted scripts in a game I'm developing, and it works really well https://github.com/JMS55/botnet.

I'm working on a Screeps-like game using WebAssembly. You compile a script to WebAssembly, and for each robot you control on the server, it runs the script in an isolated environment to choose an action for that robot. The goal is to write a program to coordinate your robots to gather resources and expand your control of the server.

Here's an example bot script: https://github.com/JMS55/botnet/blob/master/example_bot/src/...

The basic infrastructure of the project is more or less in place, besides a visual replay viewer which I'm working on right now. What's needed is a bunch of work in designing game mechanics and APIs. I don't actually have any plans beyond bots running around and harvesting randomly generated resources at the moment. Feel free to open a discussion on the github page if you're interested in Rust, WebAssembly, and video games.

https://github.com/JMS55/botnet

Block only. There’s a tail call proposal[1] that’s in phase 4 (nearly standardized).

[1]: https://github.com/WebAssembly/proposals

While it'd be a nice addition, I wouldn't expect it any time soon.

It's currently still a stage 1 proposal, while we've been waiting for years for other proposals to be merged. The last time a proposal was actually finished was over 2 years ago.

https://github.com/WebAssembly/proposals

https://github.com/WebAssembly/proposals/blob/main/finished-...

Do you know anything about any WASM developments that will enable pure WASM interaction with browser's Web-APIs at no or at a low cost without the JS layer? I'm looking at https://github.com/WebAssembly/proposals and it's very confusing. There are type imports, almost complete GC proposal(which apparently only for GCd languages, but not for anything browser<->wasm), the component model(which looks and sounds as something not for the browser use case), JS String Builtins (which will provide faster JS strings, but not DOM) and ECMAScript module integration (which will turn WASM modules into ES modules, but Web-APIs aren't ES modules so no luck). Sometimes I read contributor interactions and it looks as if providing such functionality isn't their priority or even in their plans, and WASI + component model for cloud and similar use cases are more important.

It's already in Phase 4, so close: https://github.com/WebAssembly/proposals#phase-4---standardi...

Threads are Phase 3

https://github.com/WebAssembly/proposals

You can also check out:

https://webassembly.org/roadmap/

And for Go, the proposal project on Github has many interesting conversations from the devs.

And as a reminder to anyone interested in using Go WASM, it’s experimental and does not come with the same compatibility promise as Go itself:

https://github.com/golang/go/wiki/WebAssembly

GC proposal is from 2018: https://github.com/WebAssembly/proposals/issues/16 and there’s code: https://github.com/WebAssembly/gc/blob/master/proposals/gc/O...

Seems like an awefully long time for progress to be made, given all the possibilities it would unlock.

The proposal was recently bumped to stage 4 (the penultimate stage) with at least a couple of runtimes working on implementing (besides v8, which has supported it for quite awhile now)

https://github.com/WebAssembly/proposals

But basically it boils down to the memory control proposal, which can be found here and is not very far along; Webassembly proposals lists it in stage one.

Here's the full tab list: - https://tjpalmer.github.io/languish/ - https://blog.python.org/2022/10/python-3110-is-now-available.html - https://devblogs.microsoft.com/python/python-311-faster-cpython-team/ - https://github.com/tc39/proposals/blob/main/finished-proposals.md - https://devblogs.microsoft.com/typescript/ten-years-of-typescript/ - https://devblogs.microsoft.com/typescript/announcing-typescript-4-6/#cfa-destructured-discriminated-unions - https://devblogs.microsoft.com/typescript/announcing-typescript-4-9/#the-satisfies-operator - https://devblogs.microsoft.com/typescript/announcing-typescript-4-7/#go-to-source-definition - https://devblogs.microsoft.com/typescript/announcing-typescript-4-8/#build-watch-incremental-improvements - https://openjdk.org/projects/jdk/18/ - https://openjdk.org/projects/jdk/19/ - https://blog.jetbrains.com/clion/2022/07/july-2022-iso-cpp/ - https://en.wikipedia.org/wiki/C%2B%2B23 - https://en.cppreference.com/w/cpp/23 - https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2021/p2128r6.pdf - https://devblogs.microsoft.com/dotnet/announcing-dotnet-7/ - https://devblogs.microsoft.com/dotnet/welcome-to-csharp-11/ - https://devblogs.microsoft.com/dotnet/announcing-fsharp-7/ - https://learn.microsoft.com/en-us/dotnet/core/deploying/native-aot/ - https://go.dev/blog/go1.19 - https://go.dev/blog/go1.18 - https://thephd.dev/c23-is-coming-here-is-what-is-on-the-menu - https://thephd.dev/c23-is-coming-here-is-what-is-on-the-menu#n3017---embed - https://thephd.dev/c23-is-coming-here-is-what-is-on-the-menu#n3006--n3007---type-inference-for-object-definitions - https://www.php.net/archive/2022.php#2022-12-08-1 - https://wiki.php.net/rfc/dnf_types - https://blog.rust-lang.org/ - https://blog.rust-lang.org/2022/01/13/Rust-1.58.0.html#captured-identifiers-in-format-strings - https://blog.rust-lang.org/2022/02/24/Rust-1.59.0.html#inline-assembly - https://blog.rust-lang.org/2022/05/19/Rust-1.61.0.html#more-capabilities-for-const-fn - https://blog.rust-lang.org/2022/08/11/Rust-1.63.0.html#scoped-threads - https://blog.rust-lang.org/2022/11/03/Rust-1.65.0.html#generic-associated-types-gats - https://blog.jetbrains.com/kotlin/2022/06/kotlin-1-7-0-released/ - https://stat.ethz.ch/pipermail/r-announce/2022/000683.html - https://dart.dev/guides/whats-new - https://medium.com/dartlang/dart-2-18-f4b3101f146c - https://medium.com/dartlang/the-road-to-dart-3-afdd580fbefa - https://www.swift.org/blog/swift-5.6-released/ - https://www.swift.org/blog/swift-5.7-released/ - https://www.swift.org/blog/swift-language-updates-from-wwdc22/ - https://www.ruby-lang.org/en/news/2022/12/25/ruby-3-2-0-released/ - https://www.lua.org/news.html - https://www.scala-lang.org/blog/2022/09/05/scala-3.2.0-released.html - https://tjpalmer.github.io/languish/#y=mean&weights=issues%3D1%26pulls%3D0%26stars%3D1%26soQuestions%3D1&names=solidity%2Chaskell%2Cjulia%2Celixir%2Cclojure%2Cperl%2Cgroovy%2Cocaml%2Cgdscript%2Ccmake%2Cnix%2Cvisual+basic+.net - https://blog.soliditylang.org/ - https://downloads.haskell.org/~ghc/9.4.1/docs/users_guide/9.4.1-notes.html - https://julialang.org/blog/2022/08/julia-1.8-highlights/ - https://discourse.julialang.org/t/julia-v1-9-0-beta2-is-fast/92290 - https://elixir-lang.org/blog/2022/09/01/elixir-v1-14-0-released/ - https://elixir-lang.org/blog/2022/10/05/my-future-with-elixir-set-theoretic-types/ - https://clojure.org/news/2022/03/22/clojure-1-11-0 - https://godotengine.org/en/news/default/1 - https://ocaml.org/news/ocaml-5.0 - https://tjpalmer.github.io/languish/#y=mean&weights=issues%3D1%26pulls%3D0%26stars%3D1%26soQuestions%3D1&names=gdscript%2Czig%2Cpascal%2Cfortran%2Cnim%2Cf%23%2Ccommon+lisp%2Cwebassembly%2Ccrystal%2Ccython%2Cvala%2Cerlang%2Chaxe%2Cv%2Cd - https://ziglang.org/download/0.10.0/release-notes.html - https://ziglang.org/news/goodbye-cpp/ - https://nim-lang.org/blog.html - https://nim-lang.org/blog/2022/12/21/version-20-rc.html - https://www.erlang.org/news/157 - https://github.com/WebAssembly/proposals/commits/main - https://github.com/crystal-lang/crystal/releases - https://dlang.org/changelog/2.099.0.html - https://dlang.org/changelog/2.100.0.html - https://dlang.org/changelog/2.101.0.html - https://github.com/odin-lang/Odin/releases - https://gleam.run/news/ - https://gleam.run/news/gleam-v0.22-released/ - https://gleam.run/news/gleam-v0.24-released/ - https://github.com/idris-lang/Idris2/blob/102d7ebc18a9e881021ed4b05186cccda5274cbe/CHANGELOG.md - https://github.com/diku-dk/futhark/blob/master/CHANGELOG.md#02111 - https://grain-lang.org/blog/2022/06/06/new-release-grain-v0.5-durum/ - https://rescript-lang.org/blog/release-10-0-0 - https://www.roc-lang.org/ - https://simon.peytonjones.org/assets/pdfs/haskell-exchange-22.pdf - https://vale.dev/ - https://www.val-lang.dev/