new top log logic

    private static Coord getTopLog(List<BlockID> logs, World world, Coord pos, boolean shouldLog)
    {
        LinkedList<Coord> topLogs = new LinkedList<Coord>();
        LinkedHashSet<Coord> processed = new LinkedHashSet<Coord>();
        Coord topLog = pos;

        topLogs.add(getTopLogAtPos(logs, world, pos));

        while (topLogs.size() > 0)
        {
            Coord nextLog = topLogs.pollFirst();
            processed.add(nextLog);

            // if the new pos is higher than what we've seen so far, save it as the new top log
            if (nextLog.y > topLog.y)
                topLog = nextLog;

            int currentSize = topLogs.size();

            for (int x = -1; x <= 1; x++)
                for (int z = -1; z <= 1; z++)
                    if ((x != 0 || z != 0) && logs.contains(new BlockID(world, nextLog.x + x, nextLog.y + 1, nextLog.z + z)))
                    {
                        Coord newPos = new Coord(nextLog.x + x, nextLog.y + 1, nextLog.z + z);
                        if (!topLogs.contains(newPos) && !processed.contains(newPos))
                            topLogs.add(getTopLogAtPos(logs, world, newPos));
                    }

            // check if we found anything
            if (topLogs.size() == currentSize)
            {
                for (int x = -1; x <= 1; x++)
                    for (int z = -1; z <= 1; z++)
                        if ((x != 0 || z != 0) && logs.contains(new BlockID(world, nextLog.x + x, nextLog.y, nextLog.z + z)))
                        {
                            Coord newPos = new Coord(nextLog.x + x, nextLog.y, nextLog.z + z);
                            if (!topLogs.contains(newPos) && !processed.contains(newPos))
                                topLogs.add(getTopLogAtPos(logs, world, newPos));
                        }

            }
        }

        if (shouldLog)
            TCLog.debug("Top Log: " + pos.x + ", " + pos.y + ", " + pos.z);

        return topLog;
    }

    private static Coord getTopLogAtPos(List<BlockID> logs, World world, Coord pos)
    {
        while (logs.contains(new BlockID(world, pos.x, pos.y + 1, pos.z)))
            pos.y++;

        return pos;
    }