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支持ESC-ARC2重新封包

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Chenx221 2024-10-17 01:04:14 +08:00
parent 007873c955
commit 6505ac4862
2 changed files with 88 additions and 14 deletions
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70
EscudeTools/PackManager.cs
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@ -1,4 +1,5 @@
//这里的代码参考(Ctrl+C, Ctrl+V)了Garbro中关于ESCUDE BIN封包的实现
using System.Linq;
using System.Text;
namespace EscudeTools
@ -14,6 +15,7 @@ namespace EscudeTools
static readonly byte[] fileSignature = [0x45, 0x53, 0x43, 0x2D, 0x41, 0x52, 0x43]; //"ESC-ARC"
static readonly byte[] supportPackVersion = [0x31, 0x32]; //1, 2
private bool isLoaded = false;
private uint LoadedKey;
private string pFile = "";
private uint m_seed;
private uint m_count;
@ -54,6 +56,7 @@ namespace EscudeTools
private List<Entry>? ProcessV1(BinaryReader br)
{
m_seed = br.ReadUInt32();
LoadedKey = m_seed;
m_count = br.ReadUInt32() ^ NextKey();
uint index_size = m_count * 0x88;
byte[] index = Utils.ReadBytes(br, index_size);
@ -80,6 +83,7 @@ namespace EscudeTools
private List<Entry>? ProcessV2(BinaryReader br)
{
m_seed = br.ReadUInt32();
LoadedKey = m_seed;
m_count = br.ReadUInt32() ^ NextKey();
uint names_size = br.ReadUInt32() ^ NextKey();
uint index_size = m_count * 12;
@ -160,9 +164,71 @@ namespace EscudeTools
return true;
}
public bool Repack(string path)
public bool Repack(string path, int version) //目前支持v2
{
throw new NotSupportedException("Repack not supported");
GeneratePItem(path);
m_seed = isLoaded ? LoadedKey : 2210579460;
string outputPath = Path.Combine(Path.GetDirectoryName(path), Path.GetFileName(path) + ".bin");
using (FileStream fs = new(outputPath, FileMode.Create))
using (BinaryWriter bw = new(fs))
{
bw.Write(fileSignature);
bw.Write(supportPackVersion[version - 1]);
bw.Write(m_seed);
m_count = (uint)pItem.Count;
bw.Write(m_count ^ NextKey());
uint namesSize = (uint)pItem.Sum(e => e.Name.Length + 1);
bw.Write(namesSize ^ NextKey());
uint filenameOffset = 0;
long storeOffset = 0x14 + m_count * 12 + namesSize;
byte[] index = new byte[m_count * 12];
int indexOffset = 0;
for (int i = 0; i < m_count; i++)
{
BitConverter.GetBytes(filenameOffset).CopyTo(index, indexOffset);
indexOffset += 4;
BitConverter.GetBytes(storeOffset).CopyTo(index, indexOffset);
indexOffset += 4;
BitConverter.GetBytes(pItem[i].Size).CopyTo(index, indexOffset);
indexOffset += 4;
filenameOffset += (uint)pItem[i].Name.Length + 1;
storeOffset += pItem[i].Size;
}
Decrypt(ref index);
bw.Write(index);
EncodingProvider provider = CodePagesEncodingProvider.Instance;
Encoding? shiftJis = provider.GetEncoding("shift-jis");
foreach (Entry entry in pItem)
{
byte[] nameBytes = shiftJis.GetBytes(entry.Name);
bw.Write(nameBytes);
bw.Write((byte)0);
}
foreach (Entry entry in pItem)
{
byte[] data = File.ReadAllBytes(Path.Combine(path, entry.Name));
bw.Write(data);
}
}
return true;
}
private void GeneratePItem(string path)
{
pItem.Clear();
var files = Directory.GetFiles(path, "*", SearchOption.AllDirectories);
foreach (var file in files)
{
var relativePath = Path.GetRelativePath(path, file);
var fileInfo = new FileInfo(file);
pItem.Add(new Entry
{
Name = relativePath,
Size = (uint)fileInfo.Length
});
}
m_count = (uint)pItem.Count;
}
}
}

32
EscudeTools/Program.cs
View File

@ -12,21 +12,29 @@
PackManager pm = new();
foreach (string file in files)
{
if (pm.Load(file))
{
Console.WriteLine($"Load {file} Success");
}
else
{
Console.WriteLine($"Load {file} Failed");
return;
}
//if (pm.Load(file))
//{
// Console.WriteLine($"Load {file} Success");
//}
//else
//{
// Console.WriteLine($"Load {file} Failed");
// return;
//}
if (pm.Extract())
Console.WriteLine("Export Database Success");
//if (pm.Extract())
// Console.WriteLine("Extract Package Success");
//else
//{
// Console.WriteLine("Extract Package Failed");
// return;
//}
if (pm.Repack(args[1], 2))
Console.WriteLine("Repack Package Success");
else
{
Console.WriteLine("Export Database Failed");
Console.WriteLine("Repack Package Failed");
return;
}
}