/// <summary>
/// Deserializes the data elements from the internal buffer.
/// </summary>
/// <remarks></remarks>
private void ReadData()
{
// Read version
string version = _buffer.ReadString(4);
if (version != "1.21")
{
throw new InvalidDataException($"Invalid primary file version: '{version}'");
}
// Read remaining file header
_buffer.ReadUInteger(); // Header length
_buffer.ReadInteger(); // Unknown constant = 2
LastSaveTimestamp = _buffer.ReadUInteger();
int instructionsLength = _buffer.ReadInteger();
ScenarioInstructions = _buffer.ReadString(instructionsLength);
_buffer.ReadUInteger(); // Unknown constant = 0
PlayerCount = _buffer.ReadUInteger();
// Create memory stream for decompression
using (MemoryStream output = new MemoryStream())
using (MemoryStream input = _buffer.ToMemoryStream())
{
// Go to begin of uncompressed data
input.Seek(_buffer.Position, SeekOrigin.Begin);
// Create decompressor stream
using (DeflateStream decompressor = new DeflateStream(input, CompressionMode.Decompress))
{
// Decompress
decompressor.CopyTo(output);
decompressor.Close();
}
// Save decompressed data into buffer
_buffer = new RAMBuffer(output.ToArray());
}
// Read parts
Header = new DataElements.Header().ReadData(_buffer);
MessagesCinematics = new DataElements.MessagesCinematics().ReadData(_buffer);
PlayerAiResources = new DataElements.PlayerAiResources().ReadData(_buffer);
GlobalVictory = new DataElements.GlobalVictory().ReadData(_buffer);
Diplomacy = new DataElements.Diplomacy().ReadData(_buffer);
Disables = new DataElements.Disables().ReadData(_buffer);
Map = new DataElements.Map().ReadData(_buffer);
Units = new DataElements.Units().ReadData(_buffer);
PlayerDiplomacyVarious = new DataElements.PlayerDiplomacyVarious().ReadData(_buffer);
Triggers = new DataElements.Triggers().ReadData(_buffer);
IncludedFiles = new DataElements.IncludedFiles().ReadData(_buffer);
// Clear buffer to save memory
_buffer.Clear();
}
/// <summary>
/// Schreibt die enthaltenen Daten in den übergebenen Stream.
/// </summary>
/// <param name="destFile">Der Stream, in den die Daten geschrieben werden sollen.</param>
/// <remarks></remarks>
public void WriteData(Stream stream)
{
// Daten in Puffer schreiben
WriteData();
// Puffer in Stream schreiben
_buffer.ToMemoryStream().CopyTo(stream);
}
/// <summary>
/// Serializes the data elements into the internal buffer.
/// </summary>
/// <remarks></remarks>
private void WriteData()
{
// Initialize buffer
if (_buffer == null)
{
_buffer = new RAMBuffer();
}
else if (_buffer.Length != 0)
{
_buffer.Clear();
}
// Write header
_buffer.WriteString("1.21", 4);
_buffer.WriteUInteger(4 + 4 + 4 + (uint)ScenarioInstructions.Length + 4 + 4);
_buffer.WriteInteger(2);
_buffer.WriteUInteger(LastSaveTimestamp);
_buffer.WriteInteger(ScenarioInstructions.Length);
_buffer.WriteString(ScenarioInstructions);
_buffer.WriteUInteger(0);
_buffer.WriteUInteger(PlayerCount);
// Create buffer for compressed data elements
RAMBuffer comprBuffer = new RAMBuffer();
Header.WriteData(comprBuffer);
MessagesCinematics.WriteData(comprBuffer);
PlayerAiResources.WriteData(comprBuffer);
GlobalVictory.WriteData(comprBuffer);
Diplomacy.WriteData(comprBuffer);
Disables.WriteData(comprBuffer);
Map.WriteData(comprBuffer);
Units.WriteData(comprBuffer);
PlayerDiplomacyVarious.WriteData(comprBuffer);
Triggers.WriteData(comprBuffer);
IncludedFiles.WriteData(comprBuffer);
// Compress data and copy to main buffer
using (MemoryStream output = new MemoryStream())
using (MemoryStream input = comprBuffer.ToMemoryStream())
{
// Create compressor stream
using (DeflateStream compressor = new DeflateStream(output, CompressionMode.Compress))
{
// Compress
input.CopyTo(compressor);
input.Close();
}
// Save compressed data into main buffer
_buffer.Write(output.ToArray());
}
}
/// <summary>
/// Dekomprimiert die gegebenen DAT-Daten (zlib-Kompression).
/// </summary>
/// <param name="dat">Die zu dekomprimierenden Daten.</param>
/// <returns></returns>
public static RAMBuffer DecompressData(RAMBuffer dat)
{
// Ausgabe-Stream erstellen
MemoryStream output = new MemoryStream();
// Daten in Memory-Stream schreiben
using (MemoryStream input = dat.ToMemoryStream())
{
// Kompressions-Stream erstellen
using (DeflateStream decompressor = new DeflateStream(input, CompressionMode.Decompress))
{
// (De-)Komprimieren
decompressor.CopyTo(output);
decompressor.Close();
}
}
// Ergebnis in Puffer schreiben
return(new RAMBuffer(output.ToArray()));
}