/// <summary>
/// Writes a text entry of a Subtitle Packet to a Stream.
/// </summary>
/// <param name="Writer">The writer of the output Stream</param>
/// <param name="PacketText">The text entry to be written</param>
/// <param name="Game">The game being tampered</param>
public static void ToStream(EndianBinaryWriter Writer, SubtitlePacketText PacketText, MGSGame Game)
{
byte[] TextBuffer = new byte[0];
if (PacketText.Text != null)
{
PacketText.Text = PacketText.Text.Replace("\\n", Environment.NewLine);
TextBuffer = MGSText.Text2Buffer(PacketText.Text, Game);
}
int Length = TextBuffer.Length + 1;
if ((Length & 3) != 0)
{
Length = (Length & ~3) + 4;
}
Writer.Write(PacketText.StartTime);
Writer.Write(PacketText.EndTime);
Writer.Write(0u);
Writer.Write((ushort)(Length + 0x10));
Writer.Write((ushort)PacketText.LanguageId);
Writer.Write(TextBuffer);
Writer.Write((byte)0);
while ((Writer.BaseStream.Position & 3) != 0)
{
Writer.Write((byte)0);
}
}
/// <summary>
/// Creates a codec.dat file from a folder with the extracted data.
/// </summary>
/// <param name="Data">The output stream where the newly created data will be placed</param>
/// <param name="InputFolder">The input folder with the extracted data</param>
public static void Create(Stream Data, string InputFolder, MGSGame Game)
{
if (Game == MGSGame.MGS3)
{
MGSText.Initialize();
}
BinaryWriter Writer = new BinaryWriter(Data);
string[] Folders = Directory.GetDirectories(InputFolder);
int CurrentFolder = 0;
foreach (string Folder in Folders)
{
string HeaderFile = Path.Combine(Folder, "Header.bin");
string TextFile = Path.Combine(Folder, "Text.txt");
string ScriptFile = Path.Combine(Folder, "Script.bin");
if (File.Exists(HeaderFile) && File.Exists(TextFile) && File.Exists(ScriptFile))
{
const uint Key = 0x4805d94d;
MGSCrypto Crypto = new MGSCrypto(Key);
Writer.Write(File.ReadAllBytes(HeaderFile));
Writer.Write(-1);
byte[] ScriptHeader = null;
uint ScriptHeaderLength = 0;
if (Game == MGSGame.MGS3)
{
string ScriptHeaderFile = Path.Combine(Folder, "ScriptHeader.bin");
if (File.Exists(ScriptHeaderFile))
{
ScriptHeader = File.ReadAllBytes(ScriptHeaderFile);
ScriptHeaderLength = (uint)ScriptHeader.Length;
}
}
using (MemoryStream TextBlock = new MemoryStream())
{
BinaryWriter TextWriter = new BinaryWriter(TextBlock);
string Text = File.ReadAllText(TextFile);
string[] Texts = Text.Split(new string[] { TextSeparator }, StringSplitOptions.RemoveEmptyEntries);
int BaseTextOffset = 0x14 + Texts.Length * 4;
int TextOffset = 0;
TextBlock.Seek(BaseTextOffset, SeekOrigin.Begin);
for (int Index = 0; Index < Texts.Length; Index++)
{
TextBlock.Seek(0x14 + Index * 4, SeekOrigin.Begin);
TextWriter.Write((uint)(TextOffset | 0x80000000));
TextBlock.Seek(BaseTextOffset + TextOffset, SeekOrigin.Begin);
byte[] Buffer = MGSText.Text2Buffer(Texts[Index], Game);
TextWriter.Write(Crypto.ProcessBuffer(Buffer));
TextOffset += Buffer.Length;
}
int PadIndex = 0;
while ((TextBlock.Position & 3) != 0)
{
byte Encrypted = Crypto.ProcessByte((byte)Padding[PadIndex++]);
TextBlock.WriteByte(Encrypted);
}
uint ScriptHeaderOffset = (uint)TextBlock.Position;
uint ScriptOffset = ScriptHeaderOffset + ScriptHeaderLength;
TextBlock.Seek(0, SeekOrigin.Begin);
TextWriter.Write(ScriptOffset);
TextWriter.Write(0x14);
TextWriter.Write(BaseTextOffset);
TextWriter.Write(ScriptHeaderOffset);
TextWriter.Write(Key);
Writer.Write(TextBlock.ToArray());
}
if (ScriptHeaderLength > 0)
{
Writer.Write(ScriptHeader);
}
Writer.Write(File.ReadAllBytes(ScriptFile));
while ((Data.Position & 0xf) != 0)
{
Data.WriteByte(0);
}
}
if (OnStatusChanged != null)
{
float Percentage = (float)++CurrentFolder / Folders.Length;
OnStatusChanged(Percentage);
}
}
}
