/// <summary>
/// reads the pattern package bytes from the sims3pack file
/// saves read bytes to a .package.tmp file
/// </summary>
/// <param name="patternPackage"></param>
public void createTmpPackageFile(PatternPackage patternPackage)
{
BinaryReader binaryReader = new BinaryReader(new FileStream(patternPackage.Sims3PackPath, FileMode.Open, FileAccess.Read));
binaryReader.BaseStream.Position = patternPackage.BinaryStartPosition + patternPackage.Offset;
byte[] packageBytes = binaryReader.ReadBytes(patternPackage.Length);
FileInfo packageSims3PackFileInfo = new FileInfo(patternPackage.Sims3PackPath);
string fullname = packageSims3PackFileInfo.FullName;
fullname = fullname.Replace(packageSims3PackFileInfo.Extension, "_tmp.package");
writeBytesToFile(fullname, packageBytes);
patternPackage.TmpPackagePath = fullname;
}
/// <summary>
/// decodes main package offset and length from sims3pack xml
/// </summary>
/// <param name="patternPackage"></param>
public void decode(PatternPackage patternPackage)
{
XmlDocument xmlDocument = new XmlDocument();
xmlDocument.LoadXml(patternPackage.Xml);
XmlNode sims3packNode = xmlDocument.DocumentElement;
string packageID = "";
string guid = "";
int length = -1;
int offset = -1;
foreach (XmlNode sims3packChildNode in sims3packNode.ChildNodes)
{
if (sims3packChildNode.Name == xmlPackageIdNodeName)
{
packageID = sims3packChildNode.InnerText;
}
else if (sims3packChildNode.Name == xmlPackageFileNodeName)
{
foreach (XmlNode packageNode in sims3packChildNode.ChildNodes)
{
if (packageNode.Name == xmlPackageGuidNodeName)
{
guid = packageNode.InnerText;
}
else if (packageNode.Name == xmlPackageLengthNodeName)
{
length = Convert.ToInt32(packageNode.InnerText);
}
else if (packageNode.Name == xmlPackageOffsetNodeName)
{
offset = Convert.ToInt32(packageNode.InnerText);
}
}
//if package is main package get length and offset
if (packageID.ToLower() == guid.ToLower())
{
patternPackage.Length = length;
patternPackage.Offset = offset;
}
}
}
}
/// <summary>
/// reads xml part and start position of the binary part from a Sims3Pack file
/// </summary>
/// <param name="path">path of the sims3pack file</param>
/// <returns></returns>
public PatternPackage read(string path)
{
PatternPackage patternPackage = new PatternPackage(path);
// Sims3Pack:
// DWORD length of the following string
// String
// WORD
// DWORD length of the following xml part
int DWORD = 4;
int WORD = 2;
string XMLPart = "";
BinaryReader binaryReader = new BinaryReader(new FileStream(path, FileMode.Open, FileAccess.Read));
//read 1. DWORD
byte[] DWordLength = binaryReader.ReadBytes(DWORD);
int stringLength = getLengthFromDWord(DWordLength);
//skip string part and WORD
binaryReader.BaseStream.Position += stringLength + WORD;
//read 2. DWORD
DWordLength = binaryReader.ReadBytes(DWORD);
int xmlLength = getLengthFromDWord(DWordLength);
// read XML part and convert it
byte[] XMLBytes = binaryReader.ReadBytes(xmlLength);
XMLPart = System.Text.UTF8Encoding.UTF8.GetString(XMLBytes);
binaryReader.Close();
patternPackage.BinaryStartPosition = DWORD + stringLength + WORD + DWORD + xmlLength;
patternPackage.Xml = XMLPart;
return patternPackage;
}
