lunar

Write games use jok(zig) through MoonBit(wasm).

How to run the game

Steps:

• Install zig v0.14
• Install SDL2
• Clone the project
• Fetch jok dependency
• Download wasmtime-c-api (v30.0.2)
• Build the game (moonbit)
• Run the game

# ==== Install SDL2 ====
# Debian/Ubuntu
sudo apt install libsdl2-dev
# Fedora/CentOS
sudo yum install SDL2-devel
# MacOS
brew install sdl2

# ==== Clone the project ====
git clone git@github.com:TheWaWaR/lunar.git
cd lunar
# === Fetch jok dependency ====
zig fetch --save git+https://github.com/jack-ji/jok.git

# ==== Download wasmtime-c-api ====
# Macos (M1)
wget -P wasmtime https://github.com/bytecodealliance/wasmtime/releases/download/v30.0.2/wasmtime-v30.0.2-aarch64-macos-c-api.tar.xz
# Linux (x86_64)
wget -P wasmtime https://github.com/bytecodealliance/wasmtime/releases/download/v30.0.2/wasmtime-v30.0.2-x86_64-linux-c-api.tar.xz

cd wasmtime && tar -xf *.tar.xz && cd ..

# ==== Build the game ====
cd moonbit/examples/animation-2d/
moon build --target wasm
cd ../../..

# ==== Run the game ====
mkdir -p zig-out
cd zig-out && ln -s ../assets assets && cd ..
zig build run -- ./moonbit/lunar/examples/animation-2d/target/wasm/release/build/animation-2d.wasm

Demo

Potential future of this project

• Write entire game use moonbit
  • Release as wasm (since wasmtime JIT is fast)
  • Release as native dynamic library (since moonbit can compile to native)
• Write game mod use moobit (since wasm is a performant and safe sandbox)