/// <summary>
/// Initializes a new Instance from <paramref name="fileName"/>.
/// </summary>
/// <param name="fileName">Path to .uop file.</param>
public MythicPackage(string fileName)
{
using (FileStream stream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
using (BinaryReader reader = new BinaryReader(stream))
{
int index = 0;
m_FileInfo = new FileInfo(fileName);
m_Header = new MythicPackageHeader(reader);
stream.Seek(m_Header.StartAddress, SeekOrigin.Begin);
MythicPackageBlock block;
do
{
block = new MythicPackageBlock(reader, this);
block.Index = index++;
block.Parent = this;
m_Blocks.Add(block);
}while (stream.Seek(block.NextBlock, SeekOrigin.Begin) != 0);
}
}
}
/// <summary>
/// Initializes a new instance from existing Mythic package file.
/// </summary>
/// <param name="reader">Binary file (.uop source).</param>
/// <param name="parent">Parent entity.</param>
public MythicPackageFile(BinaryReader reader, MythicPackageBlock parent)
{
m_Parent = parent;
m_DataBlockAddress = m_OldDataBlockAddress = reader.ReadInt64();
m_DataBlockLength = reader.ReadInt32();
m_CompressedSize = reader.ReadInt32();
m_DecompressedSize = reader.ReadInt32();
m_FileHash = reader.ReadUInt64();
if (m_FileHash != 0)
{
m_FileName = HashDictionary.Get(m_FileHash, true);
}
m_DataBlockHash = reader.ReadUInt32();
short flag = reader.ReadInt16();
switch (flag)
{
case 0x0: m_Compression = CompressionFlag.None; break;
case 0x1: m_Compression = CompressionFlag.Zlib; break;
default: throw new InvalidCompressionException(flag);
}
}
// --------------------------------------------------------------
#region LOCAL FUNCTIONS
// --------------------------------------------------------------
/// <summary>
/// Create an empty block
/// </summary>
/// <returns>The new block</returns>
private MythicPackageBlock NewBlock()
{
// create an empty block
MythicPackageBlock block = new MythicPackageBlock(this);
return(block);
}
/// <summary>
/// Initializes a new Instance from <paramref name="fileName"/>.
/// </summary>
/// <param name="fileName">Path to .uop file.</param>
public MythicPackage(string fileName)
{
// if the file doesn't exist, throw an exception
if (!File.Exists(fileName))
{
throw new Exception(string.Format("Cannot find {0}!", Path.GetFileName(fileName)));
}
// open the uop file
using (FileStream stream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
using (BinaryReader reader = new BinaryReader(stream))
{
// get the file info for the UOP file
FileInfo = new FileInfo(fileName);
// get the file header
Header = new MythicPackageHeader(reader);
// move to the starting point to start reading the blocks
stream.Seek((long)Header.StartAddress, SeekOrigin.Begin);
// initialize the block variable
MythicPackageBlock block;
do // load the block
{
block = new MythicPackageBlock(reader, this);
}
// keep loading until we have a next block address
while (stream.Seek(block.NextBlock, SeekOrigin.Begin) != 0);
}
}
private MythicPackageBlock NewBlock()
{
MythicPackageBlock block = new MythicPackageBlock();
block.Parent = this;
block.Index = m_Blocks.Count;
block.Added = true;
m_Blocks.Add(block);
return(block);
}
/// <summary>
/// Removes a block from <see cref="Mythic.Package.MythicPackage.Blocks"/>.
/// </summary>
/// <param name="index">Index of the block to remove.</param>
public void RemoveBlock(int index)
{
MythicPackageBlock block = m_Blocks[index];
m_Modified = true;
m_Header.FileCount -= block.FileCount;
m_Blocks.RemoveAt(index);
for (int i = index; i < m_Blocks.Count; i++)
{
m_Blocks[i].Index -= 1;
}
}
/// <summary>
/// Removes a block from <see cref="Blocks"/>.
/// </summary>
/// <param name="index">Index of the block to remove.</param>
public void RemoveBlock(int index)
{
// block out of range? throw an exception
if (index < 0 || index > Blocks.Count - 1)
{
throw new ArgumentOutOfRangeException("index");
}
// get the block at the specified index
MythicPackageBlock block = Blocks[index];
// flag the uop file as modified
Modified = true;
// get the amount of files removed
int removedFiles = block.FileCount;
// remove the files count of this block from the total files count
Header.FileCount -= removedFiles;
// remove the block
Blocks.RemoveAt(index);
// decrease the index of all the blocks that came after the one we removed
for (int i = index; i < Blocks.Count; i++)
{
// update the block index
Blocks[i].Index -= 1;
// decrease the global index of all the files in the block
foreach (MythicPackageFile f in Blocks[i].Files)
{
f.GlobalIndex -= removedFiles;
}
}
}
