Legends-of-Callasia-Extractor/Program.cs

69 lines
2.6 KiB
C#
Raw Normal View History

2024-05-27 21:35:17 +02:00
using System.IO;
using System.IO.Compression;
namespace Legends_of_Callasia_Extractor
{
class Program
{
static void Main(string[] args)
{
BinaryReader br = new(File.OpenRead(args[0]));
if (new string(br.ReadChars(4)) != "CRAS")
throw new System.Exception("This is not a Legends of Callasia arc file.");
int version = br.ReadInt32();//1
int fileCount = br.ReadInt32();
int tableStart = br.ReadInt32();
int tableSizeCompressed = br.ReadInt32();
int tableSizeUncompressed = br.ReadInt32();
int dataStart = br.ReadInt32();
int dataSizeCompressed = br.ReadInt32();
int dataSizeUncompressed = br.ReadInt32();
br.BaseStream.Position = dataStart;
MemoryStream fileData = new();
BinaryWriter bw = new(fileData);
bw.Write(br.ReadBytes(dataSizeCompressed));
br.BaseStream.Position = tableStart;
MemoryStream fileTable = new();
br.ReadInt16();
using (var ds = new DeflateStream(new MemoryStream(br.ReadBytes(tableSizeCompressed - 2)), CompressionMode.Decompress))
ds.CopyTo(fileTable);
br.Close();
BinaryReader data = new(fileData);
BinaryReader table = new(fileTable);
table.BaseStream.Position = 0;
string path = Path.GetDirectoryName(args[0]) + "\\" + Path.GetFileNameWithoutExtension(args[0]) + "\\";
for (int i = 0; i < fileCount; i++)
{
string name = new string(table.ReadChars(256)).TrimEnd('\0');
int start = table.ReadInt32() - dataStart;
int sizeCompressed = table.ReadInt32();
table.ReadInt32();
int sizeUncompressed = table.ReadInt32();
int isCompressed = table.ReadInt32();
data.BaseStream.Position = start;
Directory.CreateDirectory(path + Path.GetDirectoryName(name));
if (isCompressed == 1)
{
data.ReadInt16();
using (var ds = new DeflateStream(new MemoryStream(data.ReadBytes(sizeCompressed - 2)), CompressionMode.Decompress))
ds.CopyTo(File.Create(path + name));
}
else if (isCompressed == 2)
{
bw = new(File.Create(path + name));
bw.Write(data.ReadBytes(sizeUncompressed));
bw.Close();
}
}
}
}
}