Monday, May 14, 2007

Ancient Wars - Sparta

Developer: World Forge
Publisher: www.playlogicinternational.com
Official site: Ancient Wars - Sparta
Review:
Eurogamer
Screen shots:


A great new RTS from Eidos and Playlogic, where u can control three empires Sparta, Persia or Egypt. Also Ancient Wars: Sparta isn't a game based on 300 a movie. Game gfx is looks like very nice at least in demo :) So you need a tech new computer.

Minimum System Requirements

System: Intel Pentium®4 2.4 GHz or Athlon XP or equivalent
RAM: 512 MB
Video Memory: 128 MB
Hard Drive Space: 4000 MB

I've coded a tool for this game, game using a pretty tricky encryption, it takes me two days to made stable tool and properly implement decryption algorithm.
Decryption routine looks like:

// ( outbuffsize == decrypt FAT) ? position in stream : size of decompressed stream.

public static byte[] Decrypt(byte[] buff, int outbuffsize)
{
// If buffer length > 0x100 then decrypt only first 0x100 bytes.
int num = ( buff.Length > 0x100 ) ? 0x100 : buff.Length;

for (int i = 0; i < num; i++)
{
int index = ( outbuffsize + i ) % 15;
buff[i] = (byte) (buff[i] ^ m_array[index]);
}
return buff;
}

File structure is simple and looks like:
[StructLayout(LayoutKind.Sequential)]
public struct PAK
{
public int LengthFileName;
public string FileName;
public int Offset;
public int IsPacked; // 1 - true 2 - false
public int PackedSize;
public int UnpackedSize;
public int Crc; // it looks like crc but I'm not sure.
}
I hope you like it: Ancient Wars - Sparta .PAK Extractor v1.0

5 comments:

triton said...

Thanks! :D Nice job!

Suuk said...

Well, dont works for me with Sparta.pak Sounds/Music files are corrupt/ not playable (not all wavs). But a really nice extractor for the other files. Have also looked for a option to extract the crypted pak files. Good job man :)

Termite said...

Thnx suuk I've fixed this check my new post.

Anonymous said...

Arithmetic operation resulted in an overflow.This error message is for version 1.0 and 1.1

Unknown said...

Dont work for FATE OF HELAS