From cdac3f14ad841c7231cb278f985a979efdad1515 Mon Sep 17 00:00:00 2001
From: David Thompson <dthompson2@worcester.edu>
Date: Mon, 20 Aug 2018 20:33:30 -0400
Subject: Update README.

---
 README | 53 ++++++++++++++++++++++++++++++++++-------------------
 1 file changed, 34 insertions(+), 19 deletions(-)

(limited to 'README')

diff --git a/README b/README
index 7cdf455..3b75a71 100644
--- a/README
+++ b/README
@@ -4,13 +4,20 @@
 
 * About
 
-  Chickadee is a game development toolkit for Guile Scheme.
+  Chickadee is a game development toolkit for Guile Scheme.  It comes
+  with built-in support for 2D/3D games using SDL and OpenGL, but is
+  generic enough to be used with any I/O backend, in case you are
+  writing a text adventure or want to render your Roguelike to a
+  terminal!
+
+  Here's what rendering a sprite looks like:
 
   #+BEGIN_SRC scheme
     (use-modules (chickadee)
                  (chickadee math vector)
                  (chickadee render sprite)
-                 (chickadee render texture))
+                 (chickadee render texture)
+                 (chickadee sdl))
 
     (define sprite #f)
 
@@ -18,29 +25,37 @@
       (set! sprite (load-image "images/chickadee.png")))
 
     (define (draw alpha)
-      (draw-sprite sprite (vec2 256.0 176.0)))
-
-    (add-hook! load-hook load)
-    (add-hook! draw-hook draw)
+      (draw-sprite sprite #v(256.0 176.0)))
 
-    (run-game)
+    (run-game/sdl #:load load #:draw draw)
   #+END_SRC
 
 * Features
 
-  Chickadee supports the following features:
-
-  - 2D/3D rendering engine via OpenGL
-    - Efficient sprite rendering
-    - Signed distance field font rendering
-    - Particles
-    - Simple geometric shapes
+  Chickadee has the following features:
+
+  - Generic fixed timestep game loop
+    - Plug in any input/output system!
+  - Built-in SDL + OpenGL game loop implementation
+    - Get started writing games quickly!
+    - 2D/3D rendering engine via OpenGL
+    - Keyboard/mouse/controller input via SDL
+  - High-level OpenGL interface
+    - Sprites
+    - Shapes
+    - Fonts
     - GLSL shaders
-  - Keyboard/mouse/joystick input
-  - Sound effects and music
-  - 2D/3D/4D vector math library
-  - Axis-aligned bounding box library
-  - Fixed timestep game loop
+    - Tiled maps
+  - Math
+    - Vectors
+    - Matrices
+    - Quaternions
+    - Axis-aligned bounding boxes
+    - Easing functions
+  - Scripting
+    - Coroutines
+    - Time-based scheduling
+  - Generic A* pathfinding algorithm
 
 * Dependencies
 
-- 
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