/// <summary>
/// Replaces this file with another.
/// </summary>
/// <param name="fileName">Path to the file on HD.</param>
/// <param name="packageFolder">Relative folder within KR.</param>
/// <param name="flag">Compression type.</param>
public void Replace(string fileName, string packageFolder, CompressionFlag flag)
{
m_FileName = Path.Combine(packageFolder, Path.GetFileName(fileName)).ToLower();
m_FileHash = HashDictionary.HashFileName(m_FileName);
m_SourceFileName = fileName;
m_Compression = flag;
m_DataBlockLength = 0;
m_DataBlockHash = 0;
Modified = true;
}
/// <summary>
/// Checks if hash of <paramref name="keyword"/> is equal to <see cref="Mythic.Package.MythicPackageFile.FileHash"/>.
/// </summary>
/// <param name="hash">Hash of the <paramref name="keyword"/></param>
/// <param name="keyword">Word or a phrase.</param>
/// <returns>If <paramref name="keyword"/> equals to <see cref="Mythic.Package.MythicPackageFile.FileHash"/>.</returns>
public bool SearchHash(ulong hash, string keyword)
{
if (m_FileName == null && m_FileHash == hash)
{
HashDictionary.Set(hash, keyword);
m_FileName = keyword;
return(true);
}
return(false);
}
/// <summary>
/// Checks if hash of <paramref name="keyword"/> is equal to <see cref="Mythic.Package.MythicPackageFile.FileHash"/>.
/// </summary>
/// <param name="hash">Hash of the <paramref name="keyword"/></param>
/// <param name="keyword">Word or a phrase.</param>
/// <returns>If <paramref name="keyword"/> equals to <see cref="Mythic.Package.MythicPackageFile.FileHash"/>.</returns>
public bool SearchHash(ulong hash, char[] keyword)
{
if (m_FileName == null && m_FileHash == hash)
{
String name = new String(keyword);
HashDictionary.Set(hash, name);
m_FileName = name;
return(true);
}
return(false);
}
/// <summary>
/// Search the exact file name inside the UOP file
/// </summary>
/// <param name="fileName">EXACT file name to search</param>
/// <returns>Index of the <see cref="Mythic.Package.MythicPackageFile"/> in <see cref="Mythic.Package.MythicPackageBlock.Files"/> table.</returns>
public SearchResult SearchExactFileName(string fileName)
{
foreach (MythicPackageBlock block in m_Blocks)
{
foreach (MythicPackageFile file in block.Files)
{
if (file.FileHash == HashDictionary.HashFileName(fileName))
{
return(new SearchResult(block.Index, file.Index));
}
}
}
return(SearchResult.NotFound);
}
/// <summary>
/// Search the exact file name inside the UOP file
/// </summary>
/// <param name="fileName">EXACT file name to search</param>
/// <returns>Index of the <see cref="MythicPackageFile"/> in <see cref="MythicPackageBlock.Files"/> table.</returns>
public SearchResult SearchExactFileName(string fileName)
{
// search for the exact file name
MythicPackageFile found = (from b in Blocks
from f in b.Files
where f.FileHash == HashDictionary.HashFileName(fileName)
select f).FirstOrDefault();
// did we find the file?
if (found != null)
{
return(new SearchResult(found.Parent.Index, found.Index, HashDictionary.AddedFilenames.Contains(found.FileHash), found));
}
// if we got here, we found nothing
return(SearchResult.NotFound);
}
/// <summary>
/// Saves file data to <paramref name="writer"/>.
/// </summary>
/// <param name="reader">Binary file (.uop source).</param>
/// <param name="writer">Binary file (.uop destination).</param>
public void SaveData(BinaryReader reader, BinaryWriter writer)
{
if (m_SourceBuffer != null)
{
writer.Write(m_SourceBuffer, 0, m_CompressedSize);
HashDictionary.Set(m_FileHash, m_FileName);
}
else
{
reader.BaseStream.Seek(m_OldDataBlockAddress + m_DataBlockLength, SeekOrigin.Begin);
m_SourceBuffer = reader.ReadBytes(m_CompressedSize);
writer.Write(m_SourceBuffer, 0, m_CompressedSize);
}
m_OldDataBlockAddress = m_DataBlockAddress;
m_SourceBuffer = null;
m_Modified = false;
m_Added = false;
}
/// <summary>
/// Initializes a new instance.
/// </summary>
/// <param name="fileName">Absolute path to the file on HD.</param>
/// <param name="innerFolder">Relative folder within KR (destination).</param>
/// <param name="flag">Compression type.</param>
public MythicPackageFile(string fileName, string innerFolder, CompressionFlag flag)
{
if (String.IsNullOrEmpty(fileName))
{
throw new ArgumentException("fileName");
}
m_FileName = Path.Combine(innerFolder, Path.GetFileName(fileName)).ToLower();
if (m_FileName.StartsWith("\\") || m_FileName.StartsWith("/"))
{
m_FileName = m_FileName.Substring(1);
}
m_FileName = m_FileName.Replace('\\', '/');
m_FileHash = HashDictionary.HashFileName(m_FileName);
m_SourceFileName = fileName;
m_Compression = flag;
m_DataBlockLength = 0;
m_DataBlockHash = 0;
}
/// <summary>
/// Reloads file names from the dictionary.
/// </summary>
public void RefreshFileName()
{
m_FileName = HashDictionary.Get(m_FileHash, false);
}
