Sly

note: this project is no longer being developed!

Sly is a fun, free software 2D/3D game engine written in Guile Scheme.

Sly differentiates itself from most other game engines by encouraging and enabling the use of live coding and functional reactive programming techniques. Sly provides a dynamic live coding environment that allows games to be built interactively and iteratively without ever stopping the running program. A data structure called a “signal” provides a method of modeling time-varying state that is declarative, functional, and reactive.

Documentation

View the reference manual

Releases

• 2015-11-12 — 0.1 — sly-0.1.tar.gz — GPG signature

Requirements

• GNU Guile >= 2.0.11
• guile-opengl_ >= 0.1.0
• guile-sdl_ >= 0.5.0
• SDL 1.2.x
• FreeImage >= 3.0
• GNU Scientific Library (GSL)

Installation

To build and install Sly from source, run:

wget https://files.dthompson.us/releases/sly/sly-0.1.tar.gz
tar xf sly-0.1.tar.gz
cd sly-0.1
./configure
make
make install

License

GNU GPLv3+

Git Repository

Sly is developed using the Git version control system. The official repository is hosted at https://git.dthompson.us/sly.git.

To clone the repository, run:

git clone https://git.dthompson.us/sly.git

Community

Real-time discussion for Sly can be found on the #guile channel on the Libera.chat IRC network

Contributing

Send patches and bug reports to davet@gnu.org.