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| -rw-r--r-- | README | 27 |
1 files changed, 11 insertions, 16 deletions
@@ -4,13 +4,12 @@ Sly is a free software game engine written in [[https://gnu.org/software/guile][ provides an abstraction layer above SDL and OpenGL for common game programming requirements such as: +- Scripting - Animation - Shaders - Sprites - Tilesets -- Scene graph - Keyboard/mouse/joystick input -- Scripting Sly differentiates itself from most other game engines by encouraging [[http://toplap.org/about/][live coding]] and emphasizing [[http://elm-lang.org/learn/What-is-FRP.elm][functional reactive programming]]. @@ -33,16 +32,18 @@ Sly differentiates itself from most other game engines by encouraging ;; Create OpenGL context and do other setup. (sly-init) - ;; The object to render. - (define model - (model-move (vector2 320 240) (load-sprite "gnu.png"))) + ;; Load a GNU head sprite. + (define gnu + (load-sprite "gnu.png")) ;; The way we see the world. - (define camera (orthographic-camera 640 480)) + (define camera + (2d-camera #:area (make-rect 0 0 640 480))) - ;; View the model from the perspective of the camera. + ;; View the sprite from the perspective of the camera. (define-signal scene - (make-scene camera model)) + (with-camera camera + (move (vector2 320 240) (render-sprite gnu)))) (with-window (make-window #:title "Hello, world!") (run-game-loop scene)) @@ -130,7 +131,7 @@ Sly differentiates itself from most other game engines by encouraging =(start-sly-repl)=. To connect to the REPL server, use the [[http://www.nongnu.org/geiser/][Geiser]] extension for GNU Emacs. - *Geiser* +*** Geiser #+BEGIN_SRC fundamental M-x connect-to-guile @@ -158,7 +159,7 @@ Sly differentiates itself from most other game engines by encouraging running: #+BEGIN_SRC sh - guix environment -l package.scm + guix environment -l guix.scm #+END_SRC * Running Examples @@ -188,12 +189,6 @@ Sly differentiates itself from most other game engines by encouraging useful modules, start a REPL server, open a window, and start the game loop. Simply connect to the REPL server and start hacking! -* Platforms - - Sly supports GNU/Linux currently. OS X support is in the works, but - there are problems with guile-sdl. See - https://github.com/davexunit/guile-2d/issues/2 for more details. - * Dependencies - GNU Guile >= 2.0.11 |