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Code Issues Releases Activity

Implement scr parsing

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bird_egop 2025-02-25 01:51:28 +03:00
parent ba7c2afe2a
commit b47a9aff5d
2 changed files with 92 additions and 33 deletions
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39
ParkanPlayground/Extensions.cs Normal file
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@ -0,0 +1,39 @@
using System.Buffers.Binary;
using System.Text;
namespace ParkanPlayground;
public static class Extensions
{
public static int ReadInt32LittleEndian(this FileStream fs)
{
Span<byte> buf = stackalloc byte[4];
fs.ReadExactly(buf);
return BinaryPrimitives.ReadInt32LittleEndian(buf);
}
public static float ReadFloatLittleEndian(this FileStream fs)
{
Span<byte> buf = stackalloc byte[4];
fs.ReadExactly(buf);
return BinaryPrimitives.ReadSingleLittleEndian(buf);
}
public static string ReadLengthPrefixedString(this FileStream fs)
{
var len = fs.ReadInt32LittleEndian();
if (len == 0)
{
return "";
}
var buffer = new byte[len];
fs.ReadExactly(buffer, 0, len);
return Encoding.ASCII.GetString(buffer, 0, len);
}
}

86
ParkanPlayground/Program.cs
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@ -1,41 +1,61 @@
using System.Buffers.Binary;
using System.Text;
using NResLib;
using ParkanPlayground;
var libFile = "C:\\Program Files (x86)\\Nikita\\Iron Strategy\\ui\\ui_back.lib";
var path = "C:\\Program Files (x86)\\Nikita\\Iron Strategy\\MISSIONS\\SCRIPTS\\11p.scr";
var parseResult = NResParser.ReadFile(libFile);
using var fs = new FileStream(path, FileMode.Open);
if (parseResult.Error != null)
// тут всегда число 59 (0x3b) - это число известных игре скриптов
var magic = fs.ReadInt32LittleEndian();
Console.WriteLine($"Count: {magic}");
var entryCount = fs.ReadInt32LittleEndian();
Console.WriteLine($"EntryCount: {entryCount}");
for (var i = 0; i < entryCount; i++)
{
Console.WriteLine(parseResult.Error);
return;
}
Console.WriteLine($"Entry: {i}");
var str = fs.ReadLengthPrefixedString();
Console.WriteLine($"\tStr: {str}");
// тут игра дополнительно вычитывает ещё 1 байт, видимо как \0 для char*
fs.ReadByte();
// var libFileName = new FileInfo(libFile).Name;
//
// if (Directory.Exists(libFileName))
// {
// Directory.Delete(libFileName, true);
// }
//
// var dir = Directory.CreateDirectory(libFileName);
//
// byte[] copyBuffer = new byte[8192];
//
// foreach (var element in elements)
// {
// nResFs.Seek(element.OffsetInFile, SeekOrigin.Begin);
// using var destFs = new FileStream(Path.Combine(libFileName, element.FileName), FileMode.CreateNew);
//
// var totalCopiedBytes = 0;
// while (totalCopiedBytes < element.ItemLength)
// {
// var needReadBytes = Math.Min(element.ItemLength - totalCopiedBytes, copyBuffer.Length);
// var readBytes = nResFs.Read(copyBuffer, 0, needReadBytes);
//
// destFs.Write(copyBuffer, 0, readBytes);
//
// totalCopiedBytes += readBytes;
// }
// }
var index = fs.ReadInt32LittleEndian();
Console.WriteLine($"\tIndex: {index}");
var innerCount = fs.ReadInt32LittleEndian();
Console.WriteLine($"\tInnerCount: {innerCount}");
for (var i1 = 0; i1 < innerCount; i1++)
{
var unkInner1 = fs.ReadInt32LittleEndian();
var unkInner2 = fs.ReadInt32LittleEndian();
var unkInner3 = fs.ReadInt32LittleEndian();
var unkInner4 = fs.ReadInt32LittleEndian();
var unkInner5 = fs.ReadInt32LittleEndian();
Console.WriteLine($"\t\tUnkInner1: {unkInner1}");
Console.WriteLine($"\t\tUnkInner2: {unkInner2}");
Console.WriteLine($"\t\tUnkInner3: {unkInner3}");
Console.WriteLine($"\t\tUnkInner4: {unkInner4}");
Console.WriteLine($"\t\tUnkInner5: {unkInner5}");
var innerInnerCount = fs.ReadInt32LittleEndian();
Console.WriteLine($"\t\tInnerInnerCount: {innerInnerCount}");
for (var i2 = 0; i2 < innerInnerCount; i2++)
{
var innerInner = fs.ReadInt32LittleEndian();
Console.WriteLine($"\t\t\t{innerInner}");
}
var unkInner7 = fs.ReadInt32LittleEndian();
Console.WriteLine($"\t\tUnkInner7 {unkInner7}");
Console.WriteLine("---");
}
}