public void TestBSPWrite()
{
using var ms = new MemoryStream();
using var binaryWriter = new BinaryWriter(ms);
// Read and then write the BSP to the memory stream
var reader = FileReader.OpenStream("testdata/map.bsp");
var bsp1 = new BSP(reader);
reader.Dispose();
bsp1.WriteBSP(binaryWriter);
binaryWriter.Flush();
ms.Seek(0, SeekOrigin.Begin);
// Now read the BSP again from the memory stream, we can then compare them to make sure the write went correct
reader = new BinaryReader(ms);
var bsp2 = new BSP(reader);
reader.Dispose();
var gl1 = (GameLump)bsp1.Lumps[(int)LumpType.GameLump];
var gl2 = (GameLump)bsp2.Lumps[(int)LumpType.GameLump];
Assert.Equal(gl1.LumpItems, gl2.LumpItems);
var pak1 = (PakfileLump)bsp1.Lumps[(int)LumpType.Pakfile];
var pak2 = (PakfileLump)bsp2.Lumps[(int)LumpType.Pakfile];
Assert.Equal(pak1.Data, pak2.Data);
}
/// <summary>
/// Performs the lump extraction. Assumes that the options have been validated.
/// </summary>
/// <param name="opts">The lump extraction options</param>
/// <exception cref="ArgumentException">Thrown if opts.BSPPath is not a file path</exception>
/// <exception cref="LumpEmptyException">Thrown if the specified lump is already empty</exception>
public static void ExtractLump(Options opts)
{
var lumpIndex = opts.LumpIndex;
var bspFolder = Path.GetDirectoryName(opts.BSPPath);
var bspName = Path.GetFileNameWithoutExtension(opts.BSPPath);
if (bspFolder == null || bspName == null || Directory.Exists(opts.BSPPath))
{
throw new ArgumentException("Invalid BSP path specified");
}
// Read BSP
Console.WriteLine("Reading and parsing BSP");
var bsp = new BSP(opts.BSPPath);
if (bsp.Lumps[lumpIndex].Data.Length <= 1)
{
throw new LumpEmptyException();
}
// True if we will modify the original BSP
var willModify = !opts.DontClear;
// Backup original BSP
if (opts.MakeBackup && willModify)
{
Console.WriteLine("Saving BSP backup");
var backupBSPPath = Path.Combine(bspFolder, $"{bspName}.bsp.orig");
File.Move(opts.BSPPath, backupBSPPath);
}
// Write lump
if (!opts.DontExtract)
{
Console.WriteLine("Writing .lmp file");
var lmpPath = Path.Combine(bspFolder, $"{bspName}_l_{lumpIndex}.lmp");
bsp.WriteLMP(lmpPath, lumpIndex);
}
// Clear lump
if (!opts.DontClear)
{
Console.WriteLine("Clearing lump");
bsp.Lumps[lumpIndex].Clear();
}
// Clear lump and write new BSP
if (willModify)
{
Console.WriteLine("Writing to original file");
bsp.WriteBSP(opts.BSPPath);
}
Console.WriteLine("Done");
}
public static void PackFiles(Options opts, IReadOnlyCollection <string> files)
{
Console.WriteLine($"Found {files.Count} files matching the filter.");
Console.WriteLine($"Reading from {Path.GetFileName(opts.BSPPath)}");
var bsp = new BSP(opts.BSPPath);
var pakLump = (PakfileLump)bsp.Lumps[(int)LumpType.Pakfile];
var archive = pakLump.OpenArchiveStream(ZipArchiveMode.Update);
var i = 0;
foreach (var file in files)
{
if (i % 50 == 0)
{
Console.WriteLine($"{i}/{files.Count} Zipping files...");
}
var relPath = ToRelativePath(file, opts.ContentPath);
var entry = archive.GetEntry(relPath);
if (entry != null)
{
Console.WriteLine($"{relPath} already packed, overwriting...");
}
else
{
entry = archive.CreateEntry(relPath, CompressionLevel.NoCompression);
}
using var entryWriter = entry.Open();
using var fileReader = File.Open(file, FileMode.Open, FileAccess.Read);
fileReader.CopyTo(entryWriter);
i++;
}
pakLump.CloseArchiveStream();
Console.WriteLine($"Writing to {Path.GetFileName(opts.BSPPath)}");
bsp.WriteBSP(opts.BSPPath);
Console.WriteLine("Done!");
}
public void TestBSPFileWrite()
{
string fileName = Path.GetTempPath() + Guid.NewGuid() + ".bsp";
// Read BSP and then write to a temp file
var reader = FileReader.OpenStream("testdata/map.bsp");
var bsp1 = new BSP(reader);
reader.Dispose();
bsp1.WriteBSP(fileName);
// Re-open the temp file and do basic consistency check
using var fs = File.Open(fileName, FileMode.Open, FileAccess.Read);
using var reader2 = new BinaryReader(fs);
var bsp2 = new BSP(reader2);
reader2.Dispose();
Assert.Equal(bsp1.Version, bsp2.Version);
File.Delete(fileName);
}
public void TestClearLump()
{
// Read BSP, clear lump, write BSP, read again, confirm lump is cleared
var reader = FileReader.OpenStream("testdata/map.bsp");
var bsp = new BSP(reader);
var lump = bsp.Lumps[(int)LumpType.Entities];
var lumpSize = lump.Data.Length;
lump.Clear();
using var ms = new MemoryStream();
using var writer = new BinaryWriter(ms);
bsp.WriteBSP(writer);
writer.Flush();
ms.Seek(0, SeekOrigin.Begin);
using var reader2 = new BinaryReader(ms);
var bsp2 = new BSP(reader2);
Assert.Single(bsp2.Lumps[(int)LumpType.Entities].Data);
}