Minecraft Forums

• We looked at Craft.Net (Using the Craft.Net.Anvil)
• We looked at fNBT
• We looked at the source MOJANG posted for the NBT format (The converter from alpha to Region in Java code)
• We looked at mIDas
• We then found your Substrate and NBT Explorer.

public void simpleWriteTest()
{
currentWorld = AnvilWorld.Create("C:\\Users\\Japa\\AppData\\Roaming\\.minecraft\\saves\\testing\\");

currentDwarfMap = new DwarfWorldMap();
currentDwarfMap.loadElevationMap("D:\\DwarfFortress\\df_34_11_win\\world_graphic-el-region2-250-15510.bmp");
currentDwarfMap.loadWaterMap("D:\\DwarfFortress\\df_34_11_win\\world_graphic-elw-region2-250-15510.bmp");
currentDwarfMap.loadBiomeMap("D:\\DwarfFortress\\df_34_11_win\\world_graphic-bm-region2-250-15510.bmp");

IChunkManager cm = currentWorld.GetChunkManager();

// We can set different world parameters
currentWorld.Level.LevelName = "Flatlands";
currentWorld.Level.Spawn = new SpawnPoint(20, 255, 20);
currentWorld.Level.GameType = GameType.CREATIVE;
currentWorld.Level.AllowCommands = true;

int cropWidth = 2064;
int cropHeight = 2064;

borderWest = 0;
borderEast = borderWest + cropWidth;

borderNorth = 0;
borderSouth = borderNorth + cropHeight;

//FIXME get rid of this junk
Settings.Default.tilesPerRegionTile = 8;
Settings.Default.mapCenterX = (borderWest + borderEast) / 2;
Settings.Default.mapCenterY = (borderNorth + borderSouth) / 2;

//We have to split up the area we're working on into chunks.
//We use X and Y because minecraft's coordinate system is just retarded.
int chunkStartX = ((borderWest - Settings.Default.mapCenterX) * Settings.Default.tilesPerRegionTile) / 16;
int chunkStartY = ((borderNorth - Settings.Default.mapCenterY) * Settings.Default.tilesPerRegionTile) / 16;
int chunkFinishX = ((borderEast - Settings.Default.mapCenterX) * Settings.Default.tilesPerRegionTile) / 16;
int chunkFinishY = ((borderSouth - Settings.Default.mapCenterY) * Settings.Default.tilesPerRegionTile) / 16;

//int xmin = -20;
//int xmax = 20;
//int zmin = -20;
//int zmaz = 20;
// We'll create chunks at chunk coordinates xmin,zmin to xmax,zmax
Console.WriteLine("Starting conversion now.");
Stopwatch watch = Stopwatch.StartNew();
for (int xi = chunkStartX; xi < chunkFinishX; xi++)
{
for (int zi = chunkStartY; zi < chunkFinishY; zi++)
{
// This line will create a default empty chunk, and create a
// backing region file if necessary (which will immediately be
// written to disk)
ChunkRef chunk = cm.CreateChunk(xi, zi);

// This will make sure all the necessary things like trees and
// ores are generated for us.
chunk.IsTerrainPopulated = false;

// Auto light recalculation is horrifically bad for creating
// chunks from scratch, because we're placing thousands
// of blocks. Turn it off.
chunk.Blocks.AutoLight = false;

double xMin = ((xi * 16.0 / (double)Settings.Default.tilesPerRegionTile) + Settings.Default.mapCenterX);
double xMax = (((xi + 1) * 16.0 / (double)Settings.Default.tilesPerRegionTile) + Settings.Default.mapCenterX);
double yMin = ((zi * 16.0 / (double)Settings.Default.tilesPerRegionTile) + Settings.Default.mapCenterY);
double yMax = (((zi + 1) * 16.0 / (double)Settings.Default.tilesPerRegionTile) + Settings.Default.mapCenterY);


// Make the terrain
HeightMapChunk(chunk, xMin, xMax, yMin, yMax);

// Reset and rebuild the lighting for the entire chunk at once
chunk.Blocks.RebuildHeightMap();
chunk.Blocks.RebuildBlockLight();
chunk.Blocks.RebuildSkyLight();

// Save the chunk to disk so it doesn't hang around in RAM
cm.Save();
}
TimeSpan elapsedTime = watch.Elapsed;
int finished = xi - chunkStartX + 1;
int left = chunkFinishX - xi - 1;
TimeSpan remainingTime = TimeSpan.FromTicks(elapsedTime.Ticks / finished * left);
Console.WriteLine("Built Chunk Row {0} of {1}. {2}:{3}:{4} elapsed, {5}:{6}:{7} remaining.",
finished, chunkFinishX - chunkStartX,
elapsedTime.Hours, elapsedTime.Minutes, elapsedTime.Seconds,
remainingTime.Hours, remainingTime.Minutes, remainingTime.Seconds);
maxHeight = -9999;
minHeight = 9999;
}

// Save all remaining data (including a default level.dat)
// If we didn't save chunks earlier, they would be saved here
currentWorld.Save();
}

I am trying to load a world but I can't get past the spot where you open it. It always gives me the error "Failed to load 'level.dat'"

The code I am using.

AnvilWorld world = AnvilWorld.Open(@"C:\Users\User\AppData\Roaming\.minecraft\saves\New");

I'm also getting that error. I set up debugging (see: http://unityvs.com/documentation/dll-debugging/) and found a few issues with the maps coming out of MC 1.10.

Using NBTExplorer I see two issues with player values:

• AttackTime isn't present in my saves, so I marked in optional
• Health is a float in my saves, but Substrate expects a short

Then there's a larger issue with the player inventory, in that the "id" is a string type in my save but Substrate expects an int. I could work up a map of all the item names to IDs (expected 1, got "minecraft:stone"). (see: http://minecraft-ids.grahamedgecombe.com/)

I don't need inventory for my purposes, so I'm just not processing the player info. Once I get something working I'll see about a pull request.

The AttackTime and Health have already been fixed on master of the Substrate repo on github. I was using the 1.3.8 download of Substrate when I encountered those errors. Still, master expects TAG_SHORT for the item 'id', which now appears to be a string. Easy workaround: empty your inventory before saving and it bypasses that validation errors.

I'm working on a lookup table (string to int) based on the info here: http://www.minecraftinfo.com/idlist.htm

If anyone has a more up-to-date list I'd appreciate the link!