gx
tengo
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gx
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Making Games in Go for Absolute Beginners
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 -> 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
- Gx: Go to C++ Compiler
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Cppfront, Herb Sutter's proposal for a new C++ syntax
I've been using my own little Go (subset / my own extensions) -> C++ compiler -- https://github.com/nikki93/gx -- and found it to be a fun way to add some guardrails and nicer syntax over C++ usage. You get Go's package system and the syntax analyzers / syntax highlighters etc. just work.
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Build Pong in Your Terminal with Go for Some Reason
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. 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.
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GoGCTuner brought CPU utilisation down ~50%
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...
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I wrote a simple Go->C++ compiler for gameplay programming (gives module system, simple definition-checked generics, static reflection). Here's a demo from my game project. Generated C++ visible at end of video. Compiler source is ~1500 lines, link in description. Will do a public release soon!
Hey thanks! The source code for the compiler itself is here: https://github.com/nikki93/gx along with a test / example under the 'example/' directory. This is the C++ output when compiling 'example/': https://gist.github.com/nikki93/b650c551ccb67490d8607980a582c468
tengo
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Making Games in Go for Absolute Beginners
> It also has a bunch of libraries for embedding scripting languages https://awesome-go.com/embeddable-scripting-languages, with Tengo _probably_ being the quickest https://github.com/d5/tengo
Yes, I noticed those packages recently. The problem is that there is little data about how reliable and maintainable goloader is going to be on the long term.
As I care about performance and security, I don't want a scripting language, but WASM seems to be a very promising possibility. I have made benchmarks with 2~3 WASM engines in Go, and so far I am not completely convinced about the quality and performance of the available APIs. Also, when compiling Golang to WASM, the native compiler is still abysmally bad and does not have full support for imports, so Tinygo is a must-have.
Anyway, modding is still a long term idea at this point, so hopefully the ecosystem will get more mature within a couple of years.
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Looking for programming languages created with Go
- https://github.com/d5/tengo
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Change go code behaviour at runtime
There are totally different things like https://github.com/d5/tengo but I don't know much about the docs, communities, or viability of them. Some like this one look very active and healthy. It might be worth considering.
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Asking for advice to get deeper understanding of golang internals.
I started doing this a few years ago when I wanted to add programmability to another system I was working on, and didn't want Lua or anything else like that. I set it aside when other priorities arose, and didn't return to it when I saw that others had already done the same thing (yaegi, tengo).
What are some alternatives?
printf - Tiny, fast(ish), self-contained, fully loaded printf, sprinf etc. implementation; particularly useful in embedded systems.
otto - A JavaScript interpreter in Go (golang)
cppfront - A personal experimental C++ Syntax 2 -> Syntax 1 compiler
gopher-lua - GopherLua: VM and compiler for Lua in Go
rotaterm
goja - ECMAScript/JavaScript engine in pure Go
flapioca - A Flappy Bird-inspired terminal game written in Go.
expr - Expression language and expression evaluation for Go [Moved to: https://github.com/expr-lang/expr]
go - The Go programming language
go-php - PHP bindings for the Go programming language (Golang)
Vrmac - Vrmac Graphics, a cross-platform graphics library for .NET. Supports 3D, 2D, and accelerated video playback. Works on Windows 10 and Raspberry Pi4.
go-lua - A Lua VM in Go