MC 1.8 chest fix

FixChests.cs

using System;
using Substrate;
using Substrate.Core;

class Program
{
    static void Main (string[] args)
    {
      if (args.Length < 1)
      {
        Console.WriteLine("Usage: {0} [worldpath]", System.AppDomain.CurrentDomain.FriendlyName);
        return;
      }
      string dest;
      if (args[0].Contains("\\"))
        dest = args[0];
      else
        dest = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + "\\.minecraft\\saves\\" + args[0];

      if (!System.IO.File.Exists(dest + "\\level.dat"))
      {
        Console.WriteLine("Couldn't find level.dat in '{0}'!", dest);
        return;
      }
      NbtWorld world = NbtWorld.Open(dest);

      int total = 0;
      total += FixChestsInDimension(world, 0);
      total += FixChestsInDimension(world, -1);
      total += FixChestsInDimension(world, 1);
      Console.WriteLine("\n\nFixed {0} chests in total!", total);
      //Console.ReadKey();
    }

    private static int FixChestsInDimension(NbtWorld world, int dim)
    {
      Console.WriteLine("--- Fixing chests in dimension {0}", dim);
      IChunkManager cm = world.GetChunkManager(dim);
      if (cm == null) return 0;

      int total = 0;
      foreach (ChunkRef chunk in cm) total++;
      int n = 0;
      int fix = 0;
      foreach (ChunkRef chunk in cm)
      {
        int xdim = chunk.Blocks.XDim;
        int ydim = chunk.Blocks.YDim;
        int zdim = chunk.Blocks.ZDim;

        for (int x = 0; x < xdim; x++)
        {
          for (int z = 0; z < zdim; z++)
          {
            for (int y = 0; y < ydim; y++)
            {

              if (chunk.Blocks.GetID(x, y, z) == BlockType.CHEST && chunk.Blocks.GetData(x, y, z) == 0)
              {
                chunk.Blocks.SetData(x, y, z, 5);
                Console.WriteLine("Fixed chest at {0}, {1}, {2}                       ", chunk.X * xdim + x, y, chunk.Z * zdim + z);
                fix++;
              }
            }
          }
        }

        // Save the chunk
        cm.Save();

        Console.Write("Processed Chunk {0}, {1} ({2} / {3})\r", chunk.X, chunk.Z, n, total);
        n++;
      }
      return fix;
    }
}