/// <summary>
/// Creates a file given data, whether it's compressed and the RW version.
/// </summary>
/// <param name="name">Name of this ONE file.</param>
/// <param name="isDataCompressed">Whether the data is compressed.</param>
/// <param name="data">Uncompressed data belonging to the file</param>
/// <param name="rwVersion">RenderWare version corresponding to this file.</param>
public ManagedOneFile(string name, byte[] data, bool isDataCompressed, RwVersion rwVersion)
{
Name = name;
IsDataCompressed = isDataCompressed;
Data = data;
RwVersion = rwVersion;
}
/// <summary>
/// Creates a file given data, whether it's compressed and the RW version.
/// </summary>
/// <param name="name">Name of this ONE file.</param>
/// <param name="isDataCompressed">Whether the data is compressed.</param>
/// <param name="data">Uncompressed data belonging to the file</param>
public ManagedOneFile(string name, byte[] data, bool isDataCompressed)
{
Name = name;
IsDataCompressed = isDataCompressed;
Data = data;
RwVersion = new RwVersion(3, 2, 0, 0);
}
/// <summary>
/// Creates a ONE archive from a set of files.
/// </summary>
/// <param name="files">The files to create an archive from.</param>
/// <param name="version">The version of the archive. Heroes' default is 3.5.0.0. Consider using 3.3.0.0 to support all available prototypes.</param>
/// <param name="bufferSize">Size of the search buffer used in compression between 0-8191.</param>
public static byte[] FromFiles(IList <ManagedOneFile> files, RwVersion version, int bufferSize = 255)
{
// Compress all files.
files = files.Select(x => new ManagedOneFile(x.Name, x.GetCompressedData(bufferSize), true)).ToArray();
// Calculate sizes.
var numberOfFiles = files.Count + 2; // Two dummy entries.
var sizeOfHeaders = sizeof(OneArchiveHeader) + sizeof(OneNameSectionHeader);
var sizeOfNameSection = sizeof(OneFileName) * numberOfFiles;
var sizeOfFileSection = files.Sum(x => x.GetCompressedData().Length + sizeof(OneFileEntry));
var totalSize = sizeOfHeaders + sizeOfNameSection + sizeOfFileSection;
// Make file.
using var memStream = new ExtendedMemoryStream(totalSize);
memStream.Append(new OneArchiveHeader(totalSize - sizeof(OneArchiveHeader), version));
memStream.Append(new OneNameSectionHeader(sizeOfNameSection, version));
memStream.Append(new OneFileName("")); // Dummy entries
memStream.Append(new OneFileName(""));
foreach (var file in files)
{
memStream.Append(new OneFileName(file.Name));
}
int nameSectionIndex = 2;
foreach (var file in files)
{
memStream.Append(new OneFileEntry(nameSectionIndex++, file.GetCompressedData().Length, file.RwVersion));
memStream.Append(file.GetCompressedData());
}
return(memStream.ToArray());
}
/// <summary>
/// Creates a ONE file entry given an index, size and version/
/// </summary>
/// <param name="fileNameIndex">Index in the name section.</param>
/// <param name="fileSize">Size of the file.</param>
/// <param name="rwVersion">Version of the file.</param>
public OneFileEntry(int fileNameIndex, int fileSize, RwVersion rwVersion)
{
FileNameIndex = fileNameIndex;
FileSize = fileSize;
RwVersion = rwVersion;
}
/// <summary>
/// Creates a new Archive header.
/// </summary>
/// <param name="renderWareVersion">RenderWare version tag assigned to this archive</param>
public OneArchiveHeader(RwVersion renderWareVersion) : this()
{
RenderWareVersion = renderWareVersion;
}
/// <summary>
/// Creates a new Archive header.
/// </summary>
/// <param name="fileSize">Size of entire file, minus header</param>
/// <param name="renderWareVersion">RenderWare version tag assigned to this archive</param>
public OneArchiveHeader(int fileSize, RwVersion renderWareVersion) : this()
{
FileSize = fileSize;
RenderWareVersion = renderWareVersion;
}
/// <param name="unknown">Unknown. Probably compression flag.</param>
/// <param name="fileNameSectionLength">Length of this section.</param>
/// <param name="renderWareVersion">RenderWare version assigned to this section.</param>
public OneNameSectionHeader(int fileNameSectionLength, RwVersion renderWareVersion, int unknown = 1)
{
Unknown = unknown;
FileNameSectionLength = fileNameSectionLength;
RenderWareVersion = renderWareVersion;
}
