sokol-samples VS mach

Zig currently doesn't allow chained designators and also doesn't allow to partially initialize arrays and fill up the rest of the array with default values.

E.g. the closest Zig equivalent to this C99 code:

https://github.com/floooh/sokol-samples/blob/b3bc55c4411fa03...

...is this:

https://github.com/floooh/sokol-zig/blob/a4b3c287fadd153a504...

...note how part of the initialization had to be moved out into "code".

There's a ticket about this here, but it's currently not high-priority:

https://github.com/ziglang/zig/issues/6068

This is a simple Pong-like I've written in Raylib compiled to WASM - https://wasm-stuff.netlify.app/pong

Source code is here: https://github.com/rrampage/skitter/tree/master/pong-raylib

It is fairly straightforward to get Raylib running in the browser. I used @flohofwoe's HTML shell file ( https://github.com/floooh/sokol-samples/blob/master/webpage/... ).

PS: also if shader functions could be directly defined "inline" in regular CPU code (and behind a special function pointer type), there would be no need for string literal shenanigans like this:

https://github.com/floooh/sokol-samples/blob/3f10c1a0620cec9...

(and shader compilation would happen during the regular build and would also generate regular compiler errors - with current toolchains that's only possible with a lot of build system magic)

I think something along those lines (rarely used...) was also given by the C++ Committee as justification why so much of the C99 designated init feature set was left out of C++20. But in reality, all C99 designated-init 'sub-features' complement each other nicely once you start using them. It's a great way for building 'data-driven' APIs.

For instance check out this call to create a 3D-API pipeline-state-object in C99:

https://github.com/floooh/sokol-samples/blob/ad9047e228a8441...

I'm using anonymous nested structs extensively for grouping struct items, but I consider the extra field name a feature, not something that should be hidden:

https://github.com/floooh/sokol-samples/blob/bfb30ea00b5948f...

(also note the 'inplace initialization' which follows the state struct definition using C99's designated initialization)

It's an STB-style single-file library, which means the implementation is in a separate ifdef-block from the interface declarations, this allows to compile the implemenentation in a separate source file (which can be a C file), and be used in different source files (which can be C++ files).

For example (using stb_image.h):

https://github.com/floooh/sokol-samples/blob/master/libs/stb...

C99 has made all that a lot easier, you can setup, initialize a struct and call the function taking a pointer to that struct all in one call:

https://github.com/floooh/sokol-samples/blob/89f5825ab5d3690...

The Win32 window system functions and D3D11 are actually very convenient to work with in C99, better than C++ actually.

Myself and many others are betting on Zig in major ways, I truly think it has a bright future ahead.

In spare time, myself and a few others are working on a game engine in Zig[0], and the Zig core team has been very receptive to addressing issues our project faces and supporting us.

Others are working on pixel art editors[1], open source 2D RPG games[2], there's a group of independent folks working on a 3D massive immersive sim game[3], a group working on making Zig an amazing language for micro-controllers[4], etc.

Please consider donating $5-10 a month to the ZSF! They are a great group of people, and it has so many knock-on effects for others in the FOSS community. :)

[0] https://machengine.org/

[1] https://github.com/foxnne/pixi

[2] https://github.com/foxnne/aftersun

[3] https://github.com/Srekel/tides-of-revival

[4] https://github.com/ZigEmbeddedGroup

I don't know if there's anything better than a zip. For our website[0] which includes a bunch of docs for our game engine, Zig packages, etc. we just offer a link "offline version of this site" in the footer which is an ~80MB zip file.

I think the challenge with zip files is.. do you want all the images? do you want all versions of the docs, or just a specific version of the docs? It's hard to tailor the zip to the user's desire. But zip still seems to be the best.

[0] https://machengine.org/

Cool to see others working on this problem. I hope more people do.

Funnily I've seen a lot of programmers and math folks who express how truly, genuinely beautiful Beziers and the math behind them are. But I've never met an artist or graphic designer who didn't express some deep frustration at Bezier controls and how hard they are to work with.

There are even games[0] which make a mockery out of how hard Bezier controls are to use, where the game is purely using the controls.

Controls are just one side of the problem, in my view; the other side is that cubics are terrible for GPUs, they don't understand them - and I believe many of the best 2D graphics libraries today are not even fully GPU accelerated, e.g. Skia. There are folks working on compute shader-based approaches, where we try to shoe-horn this CPU-focused algorithm into GPUs and pray - but it still isn't really suitable.

The controls suck for artists, and the math sucks for GPUs. This is only true of cubics, if you restrict yourself to quadratics (although that brings other challenges), both the control issue goes away (you can just click+drag the curve!) and the performance issue goes away (quadratics are triangles, GPUs love them)

That's the summary of the talk[1] I gave at SYCL'22. In that talk, I didn't have time to present the downsides of quadratics (which are real) - so if you watch it please keep that in mind - but my overall point I think is a solid one: the controls suck, and GPUs can't handle them.

The only reason we stick with cubics in its current form is because of SVG, compatibility with existing tooling, etc. But isn't it crazy? We have new bitmap image formats all the time, and so few vector graphics formats.

In Mach engine[2] we're continuing to explore this space, end-to-end, from author tooling -> format -> rendering. I'm not claiming we have a perfect solution, we don't, but we're at least thinking about this problem. Kudos to the authors of this article for thinking about this space as well.

[0] https://bezier.method.ac/

[1] https://www.youtube.com/watch?v=QTybQ-5MlrE

[2] https://machengine.org

A game engine https://machengine.org is being written in zig, there's also https://microzig.tech as zig is well suited to embedded development.

https://github.com/hexops/mach (shameless plug)

Zig fits pretty naturally here too. We've got ~19 WebGPU examples[1] which use Dawn natively (no browser support yet), and we build it using Zig's build system so it 'just works' out of the box with zero fuss as long as you grab a recent Zig version[2]. No messing with cmake/ninja/depot_tools/etc.

WASM support in Zig, Rust, and C++ is also not equal. C++ prefers Emscripten which reimplements parts of popular libraries like SDL, for me personally that feels a bit weird as I don't want my compiler implementing my libraries / changing how they behave. Rust I believe generally avoids emscripten(?), but Zig for sure lets me target WASM natively and compile C/C++ code to it using the LLVM backend and soon the custom Zig compiler backend.

[1] https://github.com/hexops/mach-examples

[2] https://github.com/hexops/mach#supported-zig-version

We're building Mach which aims to be competitive with Unity/Unreal/Godot in spriti, but super modular / let you pick and choose which parts to use or build yourself.

git clone --recursive https://github.com/hexops/mach-examples cd mach-examples/ zig build run-sprite2d