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理论上支持ESC-ARC1重新封包

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未测试，手头上没有老版本
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Chenx221 2024-10-17 01:24:13 +08:00
parent 6505ac4862
commit d3abca73ad
1 changed files with 42 additions and 23 deletions
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65
EscudeTools/PackManager.cs
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@ -177,32 +177,51 @@ namespace EscudeTools
bw.Write(m_seed); bw.Write(m_seed);
m_count = (uint)pItem.Count; m_count = (uint)pItem.Count;
bw.Write(m_count ^ NextKey()); 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; EncodingProvider provider = CodePagesEncodingProvider.Instance;
Encoding? shiftJis = provider.GetEncoding("shift-jis"); Encoding? shiftJis = provider.GetEncoding("shift-jis");
foreach (Entry entry in pItem) if (version == 1) //未经测试
{ {
byte[] nameBytes = shiftJis.GetBytes(entry.Name); long storeOffset = 0x10 + m_count * 0x88;
bw.Write(nameBytes); for (int i = 0; i < m_count; i++)
bw.Write((byte)0); {
byte[] strbytes = shiftJis.GetBytes(pItem[i].Name);
byte[] result = new byte[80];
int lengthToCopy = Math.Min(strbytes.Length, 78);
Array.Copy(strbytes, result, lengthToCopy);
bw.Write(result);
bw.Write(storeOffset);
bw.Write(pItem[i].Size);
storeOffset += pItem[i].Size;
}
}
else
{
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);
foreach (Entry entry in pItem)
{
byte[] nameBytes = shiftJis.GetBytes(entry.Name);
bw.Write(nameBytes);
bw.Write((byte)0);
}
} }
foreach (Entry entry in pItem) foreach (Entry entry in pItem)
{ {