Add raycaster experiment to community examples

community/raycaster/README.md

@@ -0,0 +1,22 @@
+# raycaster
+
+A raycaster made by [Peter Hellberg](https://github.com/peterhellberg/) as part of his [pixel-experiments](https://github.com/peterhellberg/pixel-experiments).
+
+Based on Lode’s article on [raycasting](http://lodev.org/cgtutor/raycasting.html).
+
+## Controls
+
+WASD for strafing and arrow keys for rotation.
+
+Place blocks using the number keys.
+
+## Screenshots
+
+![raycaster animation](https://user-images.githubusercontent.com/565124/31828029-798e6620-b5b9-11e7-96b7-fda540755745.gif)
+
+![raycaster screenshot](screenshot.png)
+
+## Links
+
+ - https://github.com/peterhellberg/pixel-experiments/tree/master/raycaster
+ - https://gist.github.com/peterhellberg/835eccabf95800555120cc8f0c9e16c2