Wasm4 Binding for MoonBit

This is an opinionated binding for Wasm4 in MoonBit.

Prerequisites

• MoonBit toolchain
• Node.js

Usage

• Add this package: moon add moonbitlang/wasm4
• Develop with this package as other packages
• Optionally export a function called start that will be executed once on initialization and export a function called update that will be executed at 60Hz for the expected backend
• Import a memory with the module of env and name of memory
• Build with moon build --target <wasm-gc or wasm> with the respective backend
• Execute npx wasm4 run <target>.wasm. The target should be located in target/wasm/release/build/<package path>/<package name>.wasm for wasm backend, or target/wasm-gc/release/build/<package path>/<package name>.wasm for wasm-gc backend. The browser should open automatically and display the game. Enjoy

Examples

The snake example (adapted from the Wasm4 documentation) demonstrates the usage. You may execute

moon build --source-dir example/snake --target wasm
npx wasm4 run example/snake/target/wasm/release/build/snake.wasm

and enjoy the game.

References

• For more information about MoonBit, visit: MoonBit official website
• For more information about Wasm4 and how to play, visit: WASM-4 Documentation