base on A Rust repo which uses SDL2 for user interaction, and which can be run locally or compiled to WASM and run on the web # hello-rust-sdl2-wasm A minimal working "game" written in Rust with SDL2, compiled to WASM.  Note: these instructions are written for macOS and Ubuntu. If you'd like to submit instructions for any other OS, please open a PR. ## Prerequisites - [`rustup`](https://rustup.rs/) must be installed - [`git`](https://git-scm.com/book/en/v2/Getting-Started-Installing-Git) must be installed ### install [the SDL2 development libraries](https://github.com/Rust-SDL2/rust-sdl2?tab=readme-ov-file#requirements) On macOS, this is as easy as ```shell brew install sdl2 ``` Make sure these libraries are on your `LIBRARY_PATH`, as well. If you installed with `brew`, run ```shell export LIBRARY_PATH="$LIBRARY_PATH:$(brew --prefix)/lib" ``` So you don't have to do this in each new shell you open, maybe also add this to your `~/.bashrc` or `~/.zshrc` (or other shell startup script). On Ubuntu: ```shell sudo apt install libsdl2-dev ``` (setting `LIBRARY_PATH` is not needed on Ubuntu) ### clone this repo and `cd` into it ```shell git clone https://github.com/awwsmm/hello-rust-sdl2-wasm.git && cd hello-rust-sdl2-wasm ``` ## Building locally To build a desktop (standalone binary executable) app, run ```shell cargo run ``` ## Building for WASM To build the WASM app instead, there are a few more setup steps. ### install the target architecture toolchain ```shell rustup target add asmjs-unknown-emscripten ``` We use [emscripten](https://emscripten.org/) to convert Rust LLVM bytecode to WASM. ### install the `emscripten` compiler On MacOS: ```shell brew install emscripten ``` (This will take a few minutes.) On Ubuntu, follow emscripten's [recommended installation instructions](https://emscripten.org/docs/getting_started/downloads.html): ```shell git clone https://github.com/emscripten-core/emsdk.git && cd emsdk ./emsdk install latest ./emsdk activate latest source ./emsdk_env.sh ``` ### set this one environment variable ```shell export EMCC_CFLAGS="-s USE_SDL=2" ``` ### build ```shell cargo build --target asmjs-unknown-emscripten ``` Open the browser app with ```shell open index.html ``` ## Resources This work is largely based on [Michał Kalbarczyk's blog post here](https://puddleofcode.com/story/definitive-guide-to-rust-sdl2-and-emscriptem/), with some help from [Greg Buchholz's message board post here](https://users.rust-lang.org/t/sdl2-emscripten-asmjs-and-invalid-renderer-panic/66567/2), which is itself based on [Tobias Widlund's work here](https://github.com/therocode/rust_emscripten_main_loop). Thanks, all! See [Mozilla's Rust to WASM guide](https://developer.mozilla.org/en-US/docs/WebAssembly/Rust_to_Wasm) if you want a simpler Rust-to-WASM example (which doesn't use SDL2). ", Assign "at most 3 tags" to the expected json: {"id":"7005","tags":[]} "only from the tags list I provide: [{"id":77,"name":"3d"},{"id":89,"name":"agent"},{"id":17,"name":"ai"},{"id":54,"name":"algorithm"},{"id":24,"name":"api"},{"id":44,"name":"authentication"},{"id":3,"name":"aws"},{"id":27,"name":"backend"},{"id":60,"name":"benchmark"},{"id":72,"name":"best-practices"},{"id":39,"name":"bitcoin"},{"id":37,"name":"blockchain"},{"id":1,"name":"blog"},{"id":45,"name":"bundler"},{"id":58,"name":"cache"},{"id":21,"name":"chat"},{"id":49,"name":"cicd"},{"id":4,"name":"cli"},{"id":64,"name":"cloud-native"},{"id":48,"name":"cms"},{"id":61,"name":"compiler"},{"id":68,"name":"containerization"},{"id":92,"name":"crm"},{"id":34,"name":"data"},{"id":47,"name":"database"},{"id":8,"name":"declarative-gui "},{"id":9,"name":"deploy-tool"},{"id":53,"name":"desktop-app"},{"id":6,"name":"dev-exp-lib"},{"id":59,"name":"dev-tool"},{"id":13,"name":"ecommerce"},{"id":26,"name":"editor"},{"id":66,"name":"emulator"},{"id":62,"name":"filesystem"},{"id":80,"name":"finance"},{"id":15,"name":"firmware"},{"id":73,"name":"for-fun"},{"id":2,"name":"framework"},{"id":11,"name":"frontend"},{"id":22,"name":"game"},{"id":81,"name":"game-engine "},{"id":23,"name":"graphql"},{"id":84,"name":"gui"},{"id":91,"name":"http"},{"id":5,"name":"http-client"},{"id":51,"name":"iac"},{"id":30,"name":"ide"},{"id":78,"name":"iot"},{"id":40,"name":"json"},{"id":83,"name":"julian"},{"id":38,"name":"k8s"},{"id":31,"name":"language"},{"id":10,"name":"learning-resource"},{"id":33,"name":"lib"},{"id":41,"name":"linter"},{"id":28,"name":"lms"},{"id":16,"name":"logging"},{"id":76,"name":"low-code"},{"id":90,"name":"message-queue"},{"id":42,"name":"mobile-app"},{"id":18,"name":"monitoring"},{"id":36,"name":"networking"},{"id":7,"name":"node-version"},{"id":55,"name":"nosql"},{"id":57,"name":"observability"},{"id":46,"name":"orm"},{"id":52,"name":"os"},{"id":14,"name":"parser"},{"id":74,"name":"react"},{"id":82,"name":"real-time"},{"id":56,"name":"robot"},{"id":65,"name":"runtime"},{"id":32,"name":"sdk"},{"id":71,"name":"search"},{"id":63,"name":"secrets"},{"id":25,"name":"security"},{"id":85,"name":"server"},{"id":86,"name":"serverless"},{"id":70,"name":"storage"},{"id":75,"name":"system-design"},{"id":79,"name":"terminal"},{"id":29,"name":"testing"},{"id":12,"name":"ui"},{"id":50,"name":"ux"},{"id":88,"name":"video"},{"id":20,"name":"web-app"},{"id":35,"name":"web-server"},{"id":43,"name":"webassembly"},{"id":69,"name":"workflow"},{"id":87,"name":"yaml"}]" returns me the "expected json"