The game of Pong

In this lecture we're going to implement the game of Pong. E will use a Javascript front-end that runs in the browser and then program a game engine in Elixir that can run on a server.

Before the lecture you should download the following files.

* pong.ex
* session.ex
* game.ex
* websocket.ex
* pong.html
* pong.js
During the lecture we will try to make the server work.