fCraft.PlayerOpException.ThrowNoWorld C# (CSharp) Method

        internal static void ThrowNoWorld( [NotNull] Player player )
        {
            if ( player == null )
                throw new ArgumentNullException( "player" );
            const string msg = "Player must be in a world to do this.";
            const string colorMsg = "&S" + msg;
            throw new PlayerOpException( player, null, PlayerOpExceptionCode.MustBeInAWorld, msg, colorMsg );
        }

        static void CopyCallback([NotNull] Player player, [NotNull] Vector3I[] marks, [NotNull] object tag)
        {
            int         sx     = Math.Min(marks[0].X, marks[1].X);
            int         ex     = Math.Max(marks[0].X, marks[1].X);
            int         sy     = Math.Min(marks[0].Y, marks[1].Y);
            int         ey     = Math.Max(marks[0].Y, marks[1].Y);
            int         sz     = Math.Min(marks[0].Z, marks[1].Z);
            int         ez     = Math.Max(marks[0].Z, marks[1].Z);
            BoundingBox bounds = new BoundingBox(sx, sy, sz, ex, ey, ez);

            int volume = bounds.Volume;

            if (!player.CanDraw(volume))
            {
                player.MessageNow(
                    "You are only allowed to run commands that affect up to {0} blocks. This one would affect {1} blocks.",
                    player.Info.Rank.DrawLimit,
                    volume);
                return;
            }

            // remember dimensions and orientation
            CopyState copyInfo = new CopyState(marks[0], marks[1]);

            Map   map         = player.WorldMap;
            World playerWorld = player.World;

            if (playerWorld == null)
            {
                PlayerOpException.ThrowNoWorld(player);
            }

            for (int x = sx; x <= ex; x++)
            {
                for (int y = sy; y <= ey; y++)
                {
                    for (int z = sz; z <= ez; z++)
                    {
                        copyInfo.Blocks[x - sx, y - sy, z - sz] = map.GetBlock(x, y, z);
                    }
                }
            }

            copyInfo.OriginWorld = playerWorld.Name;
            copyInfo.CopyTime    = DateTime.UtcNow;
            player.SetCopyState(copyInfo);

            player.MessageNow("{0} blocks copied into slot #{1}, origin at {2} corner. You can now &H/Paste",
                              volume,
                              player.CopySlot + 1,
                              copyInfo.OriginCorner);

            Logger.Log(LogType.UserActivity,
                       "{0} copied {1} blocks from world {2} (between {3} and {4}).",
                       player.Name,
                       volume,
                       playerWorld.Name,
                       bounds.MinVertex,
                       bounds.MaxVertex);
        }