-

The Stonecutter Samurai
Once a year Automattic gathers all its employees together for a week of projects, learning, and adventure at an event called the Grand Meetup. This year I wrote a D&D adventure to share with my friends and co-workers, most of whom had never played a tabletop RPG before. It’s now been run seven times (four by me)…
-
Article on Game Design in JavaScript
http://www.smashingmagazine.com/2015/09/principles-of-html5-game-design/ And a bonus (linked from that article): an MDN article on 2d collision detection: https://developer.mozilla.org/en-US/docs/Games/Techniques/2D_collision_detection
