ruby-sdl2

https://github.com/ohai/ruby-sdl2

Ruby/SDL2 is an extension library to use SDL 2.x (Simple DirectMedia Layer). SDL 2.x is quite refined from SDL 1.x and API is changed. This library enables you to control audio, keyboard, mouse, joystick, 3D hardware via OpenGL, and 2D video using opengl or Direct3D. Ruby/SDL is used for games and visual demos.