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Hervé BECHER
2024-03-15 14:44:21 +01:00
commit d2a1cabe35
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144
Test/MapReader.cs Executable file
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// using System.Drawing;
// using Nbt.Serialization;
// using Nbt.Tag;
// namespace Nbt.Test;
// public static class MapReader
// {
// private static readonly Color[] colorTable = [
// Color.Transparent,
// Color.FromArgb(127, 178, 56),
// Color.FromArgb(247, 233, 163),
// Color.FromArgb(199, 199, 199),
// Color.FromArgb(255, 0, 0),
// Color.FromArgb(160, 160, 255),
// Color.FromArgb(167, 167, 167),
// Color.FromArgb(0, 124, 0),
// Color.FromArgb(255, 255, 255),
// Color.FromArgb(164, 168, 184),
// Color.FromArgb(151, 109, 77),
// Color.FromArgb(112, 112, 112),
// Color.FromArgb(64, 64, 255),
// Color.FromArgb(143, 119, 72),
// Color.FromArgb(255, 252, 245),
// Color.FromArgb(216, 127, 51),
// Color.FromArgb(178, 76, 216),
// Color.FromArgb(102, 153, 216),
// Color.FromArgb(229, 229, 51),
// Color.FromArgb(127, 204, 25),
// Color.FromArgb(242, 127, 165),
// Color.FromArgb(76, 76, 76),
// Color.FromArgb(153, 153, 153),
// Color.FromArgb(76, 127, 153),
// Color.FromArgb(127, 63, 178),
// Color.FromArgb(51, 76, 178),
// Color.FromArgb(102, 76, 51),
// Color.FromArgb(102, 127, 51),
// Color.FromArgb(153, 51, 51),
// Color.FromArgb(25, 25, 25),
// Color.FromArgb(250, 238, 77),
// Color.FromArgb(92, 219, 213),
// Color.FromArgb(74, 128, 255),
// Color.FromArgb(0, 217, 58),
// Color.FromArgb(129, 86, 49),
// Color.FromArgb(112, 2, 0),
// Color.FromArgb(209, 177, 161),
// Color.FromArgb(159, 82, 36),
// Color.FromArgb(149, 87, 108),
// Color.FromArgb(112, 108, 138),
// Color.FromArgb(186, 133, 36),
// Color.FromArgb(103, 117, 53),
// Color.FromArgb(160, 77, 78),
// Color.FromArgb(57, 41, 35),
// Color.FromArgb(135, 107, 98),
// Color.FromArgb(87, 92, 92),
// Color.FromArgb(122, 73, 88),
// Color.FromArgb(76, 62, 92),
// Color.FromArgb(76, 50, 35),
// Color.FromArgb(76, 82, 42),
// Color.FromArgb(142, 60, 46),
// Color.FromArgb(37, 22, 16),
// Color.FromArgb(189, 48, 49),
// Color.FromArgb(148, 63, 97),
// Color.FromArgb(92, 25, 29),
// Color.FromArgb(22, 126, 134),
// Color.FromArgb(58, 142, 140),
// Color.FromArgb(86, 44, 62),
// Color.FromArgb(20, 180, 133),
// Color.FromArgb(100, 100, 100),
// Color.FromArgb(216, 175, 147),
// Color.FromArgb(127, 167, 150)
// ];
// private static readonly double[] multiplierTable = [
// 180.0 / 255.0,
// 220.0 / 255.0,
// 1.0,
// 135.0 / 255.0
// ];
// public static void Main(string[] args)
// {
// const string inputDir = @"C:\Users\hb68\Desktop\a";
// const string outputDir = @"C:\Users\hb68\Desktop\b";
// const int width = 128, height = 128;
// const int pixelSize = 8;
// Parallel.ForEach(Directory.EnumerateFiles(inputDir), static file =>
// {
// INbtTag rootTag;
// using (var inputStream = File.OpenRead(file))
// {
// var reader = NbtReader.Create(inputStream);
// rootTag = reader.ReadNamedTag().Tag;
// }
// var colors = rootTag["data"]["colors"].AsArray<sbyte>().Value;
// using var image = new Bitmap(width * pixelSize, height * pixelSize);
// var k = 0;
// for (var i = 0; i < height; i++)
// {
// for (var j = 0; j < width; j++)
// {
// var colorId = (byte)colors[k];
// var baseColorId = colorId / 4;
// var colorOffset = colorId % 4;
// var baseColor = colorTable[baseColorId];
// var multiplier = multiplierTable[colorOffset];
// var color = Color.FromArgb(baseColor.A, (int)(baseColor.R * multiplier), (int)(baseColor.G * multiplier), (int)(baseColor.B * multiplier));
// if (pixelSize > 1)
// {
// var imgI = i * pixelSize;
// var imgJ = j * pixelSize;
// for (var xOff = 0; xOff < pixelSize; xOff++)
// {
// for (var yOff = 0; yOff < pixelSize; yOff++)
// {
// image.SetPixel(imgJ + xOff, imgI + yOff, color);
// }
// }
// }
// else
// {
// image.SetPixel(j, i, color);
// }
// k++;
// }
// }
// var fileName = Path.GetFileName(file);
// image.Save(Path.Combine(outputDir, $"{fileName}.png"), System.Drawing.Imaging.ImageFormat.Png);
// Console.WriteLine(fileName);
// });
// }
// }

128
Test/Program.cs Executable file
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namespace Nbt.Test;
using System.IO.Compression;
using K4os.Compression.LZ4.Streams;
using Nbt.Serialization;
using Nbt.Tag;
public static class Program
{
public static void Main(string[] args)
{
WorldFileReading();
}
private static void Test()
{
const string filePath = @"D:\Minecraft\game\profiles\test\saves\creatif\players\hbdu68.dat";
INbtTag rootTag;
using (var inputStream = File.OpenRead(filePath))
{
using var reader = NbtReader.Create(inputStream);
rootTag = reader.ReadNamedTag().Tag;
}
// SNbt.Serialize(Console.Out, rootTag, new() { Style = SNbt.SerializationStyle.Indented });
var s = JsonNbt.Serialize(rootTag);
var t = JsonNbt.Deserialize(s);
Console.WriteLine(rootTag.Equals(t));
}
private static void WorldFileReading()
{
const string inputFile = @"/home/hbecher/Téléchargements/sc-murder/region/r.-3.0.mca";
// chunk coordinates and last modified timestamps
// two 4kiB tables (1024 ints)
var allOfTheShite = new NbtCompound();
Span<byte> buf4 = stackalloc byte[4];
using var inputStream = File.OpenRead(inputFile);
for (var chunkX = 0; chunkX < 32; chunkX++)
{
for (var chunkZ = 0; chunkZ < 32; chunkZ++)
{
var chunkOffset = (chunkX + (chunkZ << 5)) << 2;
inputStream.Position = chunkOffset;
inputStream.Read(buf4);
buf4.Reverse();
var rawLoc = BitConverter.ToUInt32(buf4);
var offset = (int)((rawLoc & ~0xFFu) << 4);
var size = (int)((rawLoc & 0xFFu) << 12);
if (offset == 0 && size == 0)
{
continue;
}
using (inputStream.Mark())
{
inputStream.Position += 1024 * 4;
inputStream.Read(buf4);
}
buf4.Reverse();
var timestamp = BitConverter.ToInt32(buf4);
using (inputStream.Mark())
{
inputStream.Position = offset;
inputStream.Read(buf4);
buf4.Reverse();
var length = BitConverter.ToInt32(buf4);
var compressionMode = inputStream.ReadByte();
Stream inflaterStream;
bool leaveOpen = false;
switch (compressionMode)
{
case 1:
inflaterStream = new GZipStream(inputStream, CompressionMode.Decompress, true);
break;
case 2:
inflaterStream = new ZLibStream(inputStream, CompressionMode.Decompress, true);
break;
case 3:
inflaterStream = inputStream;
leaveOpen = true;
break;
case 4:
inflaterStream = LZ4Stream.Decode(inputStream, leaveOpen: true);
break;
default:
continue;
}
INbtTag tag;
using (var nbtReader = new NbtReader(inflaterStream, leaveOpen))
{
tag = nbtReader.ReadNamedTag().Tag;
}
allOfTheShite[$"{chunkX}-{chunkZ}"] = tag;
}
}
}
using var outputStream = File.CreateText(@"/home/hbecher/Téléchargements/a.snbt");
// SNbt.Serialize(outputStream, allOfTheShite, new() { Style = SNbt.SerializationStyle.Indented });
JsonNbt.ToJson(outputStream, allOfTheShite);
}
}

6
Test/StreamExtensions.cs Executable file
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namespace Nbt.Test;
public static class StreamExtensions
{
public static StreamMark Mark(this Stream stream) => new(stream);
}

9
Test/StreamMark.cs Executable file
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namespace Nbt.Test;
public readonly struct StreamMark(Stream stream) : IDisposable
{
private readonly Stream _stream = stream;
private readonly long _pos = stream.Position;
public void Dispose() => _stream.Position = _pos;
}

15
Test/Test.csproj Executable file
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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net8.0</TargetFramework>
<Nullable>enable</Nullable>
<StartupObject></StartupObject>
<ImplicitUsings>enable</ImplicitUsings>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="..\Nbt\Nbt.csproj" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="System.Drawing.Common" Version="8.0.2" />
</ItemGroup>
</Project>