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nikki93
gx
Go2021–2023
nikki93 / gx

gx

A Go->C++transpiler meant for data-oriented gameplay and application programming especially for WebAssembly. Using this mostly in the context of specific personal projects and heavily focusing the feature set on those. Used in my Raylib gamejam project: https://github.com/nikki93/raylib-5k -- also being used to develop a private longer term game project and a note-taking app.

2Distinct people
6Mentions
0Explicit recommenders
97GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

A Go->C++transpiler meant for data-oriented gameplay and application programming especially for WebAssembly. Using this mostly in the context of specific personal projects and heavily focusing the feature set on those. Used in my Raylib gamejam project: https://github.com/nikki93/raylib-5k -- also being used to develop a private longer term game project and a note-taking app.

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by month6 dated mentions

Observed mentions: 2021-12-14 19:24:37 UTC to 2023-11-25 07:54:10 UTC.

0122021-12-01 00:00:00 UTC to 2022-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsDec 20212022-01-01 00:00:00 UTC to 2022-02-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2022-02-01 00:00:00 UTC to 2022-03-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-03-01 00:00:00 UTC to 2022-04-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-04-01 00:00:00 UTC to 2022-05-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-05-01 00:00:00 UTC to 2022-06-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-06-01 00:00:00 UTC to 2022-07-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-07-01 00:00:00 UTC to 2022-08-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2022-08-01 00:00:00 UTC to 2022-09-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-09-01 00:00:00 UTC to 2022-10-01 00:00:00 UTC (exclusive): 2 mentions; 1 submissions, 1 comments2022-10-01 00:00:00 UTC to 2022-11-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-11-01 00:00:00 UTC to 2022-12-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 commentsNov 20222022-12-01 00:00:00 UTC to 2023-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-01-01 00:00:00 UTC to 2023-02-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-02-01 00:00:00 UTC to 2023-03-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-03-01 00:00:00 UTC to 2023-04-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-04-01 00:00:00 UTC to 2023-05-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-05-01 00:00:00 UTC to 2023-06-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-06-01 00:00:00 UTC to 2023-07-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-07-01 00:00:00 UTC to 2023-08-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-08-01 00:00:00 UTC to 2023-09-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-09-01 00:00:00 UTC to 2023-10-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-10-01 00:00:00 UTC to 2023-11-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-11-01 00:00:00 UTC to 2023-12-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsNov 2023

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
Dec 20212021-12-01 00:00:00 UTC2022-01-01 00:00:00 UTC101
Jan 20222022-01-01 00:00:00 UTC2022-02-01 00:00:00 UTC101
Feb 20222022-02-01 00:00:00 UTC2022-03-01 00:00:00 UTC000
Mar 20222022-03-01 00:00:00 UTC2022-04-01 00:00:00 UTC000
Apr 20222022-04-01 00:00:00 UTC2022-05-01 00:00:00 UTC000
May 20222022-05-01 00:00:00 UTC2022-06-01 00:00:00 UTC000
Jun 20222022-06-01 00:00:00 UTC2022-07-01 00:00:00 UTC000
Jul 20222022-07-01 00:00:00 UTC2022-08-01 00:00:00 UTC101
Aug 20222022-08-01 00:00:00 UTC2022-09-01 00:00:00 UTC000
Sep 20222022-09-01 00:00:00 UTC2022-10-01 00:00:00 UTC211
Oct 20222022-10-01 00:00:00 UTC2022-11-01 00:00:00 UTC000
Nov 20222022-11-01 00:00:00 UTC2022-12-01 00:00:00 UTC000
Dec 20222022-12-01 00:00:00 UTC2023-01-01 00:00:00 UTC000
Jan 20232023-01-01 00:00:00 UTC2023-02-01 00:00:00 UTC000
Feb 20232023-02-01 00:00:00 UTC2023-03-01 00:00:00 UTC000
Mar 20232023-03-01 00:00:00 UTC2023-04-01 00:00:00 UTC000
Apr 20232023-04-01 00:00:00 UTC2023-05-01 00:00:00 UTC000
May 20232023-05-01 00:00:00 UTC2023-06-01 00:00:00 UTC000
Jun 20232023-06-01 00:00:00 UTC2023-07-01 00:00:00 UTC000
Jul 20232023-07-01 00:00:00 UTC2023-08-01 00:00:00 UTC000
Aug 20232023-08-01 00:00:00 UTC2023-09-01 00:00:00 UTC000
Sep 20232023-09-01 00:00:00 UTC2023-10-01 00:00:00 UTC000
Oct 20232023-10-01 00:00:00 UTC2023-11-01 00:00:00 UTC000
Nov 20232023-11-01 00:00:00 UTC2023-12-01 00:00:00 UTC101

What Hacker News says

6 sources
Nice! Ebiten is a super nice API for Go. Lots there to be inspired by in API design. Another API I like a lot is Love for Lua (which also actually can be used from C++). Re: the comments on here about the GC etc. -- I've posted about this a couple times before but I've been using a custom Go (subset / some changes) -> C++ compiler for hobby gamedev, which helps with perf, gives access to C/C++ APIs (I've been using Raylib and physics engines etc.) and also especially has good perf in WebAssembly. Another nice thing is you can add in some reflection / metaprogramming stuff for eg. serializing structs or inspector UI for game entity properties. I was briefly experimenting with generating GLSL from Go code too so you can write shaders in Go and pass data to them with shared structs etc. The compiler: https://github.com/nikki93/gx (it uses th
Read the rest
e Go parser and semantic analysis phases from the standard library so all it has to do is output C++) (it's a subset / different from regular Go -- no coroutines, no GC; just supporting what I've needed in practice -- typechecks as regular Go so editor autocomplete works etc.) A game made with it a while ago for raylib game jam along with the raylib bindings and other engine stuff: https://github.com/nikki93/raylib-5k Very old video of a longer term game project I'm using it on which also shows state-preserving reload on rebuilds and also the editor inspector UI: https://youtu.be/8He97Sl9iy0?si=IJaO0wegyu-nzDRm (you can see it reload preserving state across null pointer crashes too...)
In Making games in Go for absolute beginners
Re: perf for hobby gamedev, I basically agree for native builds, but lately I've felt like Wasm support seems key for hobby gamedev (so you can have more people play your game / without downloading it / it works directly on mobile too without dealing with app or play store). And Go perf in Wasm unfortunately is not so good (I was hitting big GC pauses when trying to make a game with Ebiten and large images). I ended up writing a Go -> C++ compiler. Go's standard library parser/typechecker made it very doable. The games I've done with it don't use the GC at all but also don't manually manage memory -- they use an ECS api which helps. https://github.com/nikki93/gx -- the README links to development workflow video and complete example game code. I get the perf, interop/libs and portability of C/C++ but with Go's developer experience (well th
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e build system involves C/C++ of course but I have something set up there that I now just use).
In Build Pong in Your Terminal with Go for Some Reason
I've written my own Go (subset + extensions) -> C++ transpiler and using it on a game project: https://www.youtube.com/watch?v=8He97Sl9iy0 -- No GC, it does have slices and has access to an entity/component API and with that I think you're basically set and don't need GC for games. Example transpiler input / output: https://github.com/nikki93/gx/blob/master/example/main.gx.go... becomes https://gist.github.com/nikki93/97ff376abb6718427387bb9cca2f... Can call to C/C++ (including templates) w/o overhead. That said, for logic that is heavy on async and escaping closures like how a lot of Go server code tends to be, a GC is maybe a reasonable tradeoff?
In Large-scale, semi-automated Go GC tuning
I've been working on a Go -> C++ compiler pretty much mainly for this use case, that skips the GC and concurrency stuff -- https://www.reddit.com/r/golang/comments/r2795t/i_wrote_a_si... -- Includes a demo video of a game I'm making with it and a built-in scene editor that uses reflection etc. Repo for compiler itself: https://github.com/nikki93/gx (no README.md etc. yet, will be getting to that when I next have a chance (it's a side project)). It just takes around 1500 lines of Go thanks to the parser and typechecker in the standard library. Go's perf was definitely non-trivially bad for me on WebAssembly.
In Type-Safe Printf for C

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