101 lines
3.1 KiB
C#
101 lines
3.1 KiB
C#
namespace minitool2
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{
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internal class Program
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{
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static void Main(string[] args)
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{
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if (args.Length == 0)
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{
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Console.WriteLine("Usage: minitool2 <file.arc>");
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return;
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}
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string filePath = args[0];
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if (!File.Exists(filePath))
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{
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Console.WriteLine("文件不存在");
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Console.ReadKey();
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return;
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}
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if (Path.GetExtension(filePath).ToLower() != ".arc")
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{
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Console.WriteLine("文件后缀不正确");
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Console.ReadKey();
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return;
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}
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byte[] fileHeader = "@ARCH000"u8.ToArray();
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byte[] unityFsHeader = [0x55, 0x6E, 0x69, 0x74, 0x79, 0x46, 0x53, 0x00, 0x00, 0x00, 0x00];
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using FileStream fs = new(filePath, FileMode.Open, FileAccess.Read);
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byte[] buffer = new byte[fileHeader.Length];
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fs.Read(buffer, 0, buffer.Length);
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for (int i = 0; i < fileHeader.Length; i++)
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{
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if (buffer[i] != fileHeader[i])
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{
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Console.WriteLine("文件头不符合规则");
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Console.ReadKey();
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return;
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}
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}
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List<long> positions = [];
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long position = 0;
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int bytesRead;
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buffer = new byte[unityFsHeader.Length];
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while ((bytesRead = fs.Read(buffer, 0, buffer.Length)) == buffer.Length)
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{
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bool match = true;
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for (int j = 0; j < unityFsHeader.Length; j++)
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{
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if (buffer[j] != unityFsHeader[j])
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{
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match = false;
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break;
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}
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}
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if (match)
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{
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positions.Add(position);
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}
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position += 1;
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fs.Seek(position, SeekOrigin.Begin);
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}
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if (positions.Count == 0)
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{
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Console.WriteLine("未找到任何UnityFS块");
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Console.ReadKey();
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return;
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}
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string outputDir = Path.Combine(Directory.GetCurrentDirectory(), "output");
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Directory.CreateDirectory(outputDir);
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for (int i = 0; i < positions.Count; i++)
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{
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long start = positions[i];
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long end = (i + 1 < positions.Count) ? positions[i + 1] : fs.Length;
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long length = end - start;
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fs.Seek(start, SeekOrigin.Begin);
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buffer = new byte[length];
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fs.Read(buffer, 0, buffer.Length);
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string outputFilePath = Path.Combine(outputDir, $"{(i + 1).ToString("D5")}.assets");
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File.WriteAllBytes(outputFilePath, buffer);
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Console.Write($"\r进度: {((i + 1) * 100 / positions.Count)}%");
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}
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Console.WriteLine("提取完成");
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Console.ReadKey();
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}
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}
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}
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