Server objects
----

 * Server
   * Users
   * Rooms
   * Settings

 * User
   * Name
   * Stuff
   * Settings
     * Keybindings
 * Room
   * Games
   * Users
   * Chat(?)
   * Settings
 * Game
   * Settings
     * Speed
     * Number of players
   * Players
   * Map
   * Score table
   * Game state
     * unstarted, running, finished, paused(?)
     * Player state
       * Alive/dead/...
       * Trail
       * Position
       * Velocity
       * Boost active
       * Boost fuel
 * Map
   * Walls

Client objects
----

 * Client
   * Server
   * User
   * State (room list, in room, in game)

 * User
   * (same as server)

 * Game
   * (same as server)

 * Game update