War3Net.IO.Mpq is a .NET library for reading and writing MPQ (MoPaQ) archives, a container format used by Blizzard games including Warcraft III. It is part of the War3Net modding library.

• Open and read files from existing MPQ archives
• Create new MPQ archives with customizable options
• Modify existing archives by adding or removing files
• Support for file compression (ZLib, PKLib, BZip2, LZMA)
• Support for file encryption with automatic seed calculation
• Handle multiple file locales within the same archive
• Access files in nested archives (archives within archives)
• Automatic listfile and attributes management

using War3Net.IO.Mpq;

// Open an existing archive
using var archive = MpqArchive.Open("path/to/archive.mpq", loadListFile: true);

// Check if a file exists
if (archive.FileExists("war3map.w3i"))
{
    // Open and read a file
    using var stream = archive.OpenFile("war3map.w3i");
    // Process the stream...
}

using War3Net.IO.Mpq;

// Create files to add to the archive
var file1 = MpqFile.New(File.OpenRead("script.j"), "war3map.j");
var file2 = MpqFile.New(new MemoryStream(data), "war3map.w3i");

// Configure archive options
var options = new MpqArchiveCreateOptions
{
    BlockSize = 3,
    HashTableSize = 16,
    ListFileCreateMode = MpqFileCreateMode.Overwrite,
    AttributesCreateMode = MpqFileCreateMode.Overwrite,
};

// Create the archive
using var archive = MpqArchive.Create(
    "output.mpq",
    new[] { file1, file2 },
    options);

using War3Net.IO.Mpq;

// Open the original archive
using var archive = MpqArchive.Open("map.w3x", loadListFile: true);

// Create a builder from the archive
var builder = new MpqArchiveBuilder(archive);

// Add a new file
var newFile = MpqFile.New(new MemoryStream(newData), "newfile.txt");
builder.AddFile(newFile);

// Remove an existing file
builder.RemoveFile("oldfile.txt");

// Save the modified archive
builder.SaveTo("modified.w3x");

using War3Net.IO.Mpq;

var file = MpqFile.New(stream, "encrypted.dat");

// Set compression type
file.CompressionType = MpqCompressionType.ZLib;

// Set target flags for compression and encryption
file.TargetFlags = MpqFileFlags.Exists
    | MpqFileFlags.CompressedMulti
    | MpqFileFlags.Encrypted;

The main types provided by this library are:

• War3Net.IO.Mpq.MpqArchive - Represents an MPQ archive for reading or creating
• War3Net.IO.Mpq.MpqArchiveBuilder - Builder for modifying existing archives
• War3Net.IO.Mpq.MpqArchiveCreateOptions - Configuration options for archive creation
• War3Net.IO.Mpq.MpqFile - Represents a file to be added to an archive
• War3Net.IO.Mpq.MpqStream - Stream for reading file contents from an archive
• War3Net.IO.Mpq.MpqEntry - Metadata entry for a file in the block table
• War3Net.IO.Mpq.MpqHash - Hash table entry for file lookup
• War3Net.IO.Mpq.MpqFileFlags - Flags for file compression, encryption, and existence
• War3Net.IO.Mpq.MpqCompressionType - Compression algorithms (ZLib, PKLib, BZip2, etc.)
• War3Net.IO.Mpq.MpqLocale - Locale identifiers for multi-language support

• War3Net.Build - Generate JASS map scripts and compile maps
• War3Net.Build.Core - Parsers and serializers for war3map files
• War3Net.IO.Compression - Compression algorithms for MPQ files

War3Net.IO.Mpq is released as open source under the MIT license. Bug reports and contributions are welcome at the GitHub repository.

• File an issue
• Submit a pull request

This README was generated with the assistance of AI and may contain inaccuracies. Please verify the information and consult the source code for authoritative details.