EVENTS

Generic:

- connection
- disconnect

User:

- new_user
- set_username
- username_change

Errors:

- insufficient_users

Game:

- round_start
- new_game_id
- who
- with
- where
- doing
- show_answers

FLOWCHART

          filter      +--------+      append
        +-------------> users[]<------------------+
        |             +--------+                  | 1
        |                                         |
        |                                         |
        |                                     1a ++-----------+  o1
+-------+------+     +---------------------------+ connection +-----------------+
| ~disconnect  |     |                           +--------+---+                 |
+--------------+     |                             |2     | 3                   |                   +-----------------+
                     |              +--------------+      |            +--------v---------+         +>username_change |
               +-----v----+         |                     |            |~set_username     | o1a     | +old_username   |
               +>new_user |  +------v------+ +------------v---------+  | +socket.username +---------> +username       |
               | +uuid    |  |~round_start | |~who/with/where/doing |  +------------------+         |                 |
               | +users[] |  | +user_count | | +games[game_idx]     | 3a                            +-----------------+
               |          |  |             | |                      +---------------------+
               +----------+  +-------------+ +----------------------+  append at game_idx |
                                 |2a      |2b                  |4                (global) |
                           +-----+        +----+               +-----+                    |
                           |                   |append to games[]    |                    |
                           |                   |                     |                    |
                +----------v---------+  +------v------+              |           +--------v--------+
                +>insufficient_users |  +>new_game_id |              |           | games[]         |
                |                    |  |             |      +-------v------+    | global store    |
                +--------------------+  +-------------+      |~show_answers |    +-----------------+
                                                             | +game_id     |
                                                             |              |
                                                             +------+-------+
                                                                    | 4a
                                                                    |
                                                                +---v-----+
                                                                |>answers |
                                                                +---------+