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Hydrozoa Runtime

Run WebAssembly programs on VEX V5 brains

About

Hydrozoa Runtime is the behind-the-scenes magic that makes it possible to use interpreted languages like Java and Kotlin on VEX Robots. It uses a WebAssembly interpreter that runs directly on the VEX V5 Brain to run programs, and defines a set of functions the program can use to interface with the VEX SDK.

Building

Hydrozoa programs need the hydrozoa.bin runtime file to upload their code to a robot, which can be generated by building this repository.

To begin, ensure you have both the Rust programming language (cargo) and the ARM Embedded Toolchain (arm-none-eabi-gcc) available on your system.

This project also depends on cargo-v5, which you can install by running this command:

cargo install cargo-v5

Clone the repository with the --recurse-submodules flag to ensure you have its submodules as well:

git clone https://github.com/vexide/hydrozoa.git --recurse-submodules

Then, run this command to build the project:

cargo v5 build --release

The resulting hydrozoa.bin file is located in ./target/armv7a-vex-v5/release/.