Turn Map of words to number of words.

Constructs a new `WebSocket` instance over the HTTP request represented by `w`, `r`, and `responseHeader`.

Initializes an empty userWordsMap.

Returned by multiple WebSocket methods if the WebSocket is closed.

Returned by ValidateUsername in the event that a user already exists.

Returned by WebSocket.ReadMessage if there are no messages in the queue.

A "Lobby" represents a game that is currently open or running.

Represents a map between a username and score for that user.

A WebSocket and its username is very closely related, so we store them in a collection together in a transparent manner.

The WebSocket wrapper provides channel-based messag reading from the WebSocket, and a convenient Ping / Pong.

Represents an answer submission.

The `World` is a collection of all active lobbies, and handles the process of routing.

This struct is used to hold data recieved over web sockets.