fCraft.World.Lock C# (CSharp) Method

        public bool Lock( [NotNull] Player player )
        {
            if ( player == null )
                throw new ArgumentNullException( "player" );
            lock ( lockLock ) {
                if ( IsLocked ) {
                    return false;
                } else {
                    LockedBy = player.Name;
                    LockedDate = DateTime.UtcNow;
                    IsLocked = true;
                    Map mapCache = Map;
                    if ( mapCache != null ) {
                        mapCache.ClearUpdateQueue();
                        mapCache.StopAllDrawOps();
                    }
                    Players.Message( "&WWorld was locked by {0}", player.ClassyName );
                    Logger.Log( LogType.UserActivity,
                                "World {0} was locked by {1}",
                                Name, player.Name );
                    return true;
                }
            }
        }