public void AddConnection(Connection connection)
{
_context.Value.Groups.Add(connection.Id, GroupId);
_connections.Add(connection);
_context.Value.Clients.Client(connection.Id).joinRoom(GroupId.Substring(0, 4));
_context.Value.Clients.Group(GroupId, connection.Id).playerConnected(connection);
_scores.Add(connection, 0);
_history.Add(connection, new List <string>());
_context.Value.Clients.Client(connection.Id)
.updateScores(_scores.OrderByDescending(s => s.Value).Select(s => new { name = s.Key.Name, value = s.Value, imageUrl = s.Key.ImageUrl }));
_context.Value.Clients.Group(GroupId, connection.Id)
.updateScores(_scores.OrderByDescending(s => s.Value).Select(s => new { name = s.Key.Name, value = s.Value, imageUrl = s.Key.ImageUrl }));
}