// creates a BingoUser with random colour and adds it to this room
// returns hex colour
public string AddUser(string connectionID, string username)
{
string hexColour = BingoUtils.PickAndRemoveString(_possibleHexColours);
Users.Add(connectionID, new BingoUser(connectionID, username, hexColour));
return(hexColour);
}
/// <summary>
/// Creates a room with a random three character ID, and returns its room ID.
/// </summary>
/// <returns>The ID of the newly created room.</returns>
public string CreateRoom()
{
string roomID = null;
do
{
roomID = BingoUtils.RandomString(RoomIDLength);
} while (Rooms.ContainsKey(roomID));
Rooms.Add(roomID, new BingoRoom(roomID));
return(roomID);
}
