A tech demo based on https://rustwasm.github.io/docs/book/game-of-life/introduction.html
The tutorial above codes the game world logic in Rust. This is then compiled with wasm-pack with javascript bindings magically created by wasm-bindgen.
In the www directory there is a simple js frontend that uses the wasm bindings to set up a GoL world and then loop, updating and rendering it onto an html canvas element.
The rust library is based on the https://github.com/rustwasm/wasm-pack-template and the frontend on https://github.com/rustwasm/create-wasm-app.
Since drawing little rectangles to the canvas was taking a pretty big chunk of time in the update/render loop (TODO: add profiling picture), I added a WebGL renderer instead that draws POINT primitives for each cell - this changes things so that the update/render step is dominated by the updating logic.
This was heavily based on the excellent https://webgl2fundamentals.org/