fpopov thanks

2026-08-15 02:57:49 +04:00 · 2026-05-09 20:36:43 +03:00
parent d73a6dde70
commit eb458ad9a8
43 changed files with 1562 additions and 1233 deletions
@@ -0,0 +1,70 @@
+using System.Buffers.Binary;
+using NResLib;
+
+namespace ParkanPlayground;
+
+/// <summary>
+/// MSH-компонент 0x0D: таблица batch.
+/// </summary>
+public static class Msh0x0D
+{
+    public const int ElementSize = 20;
+    
+    public static List<Batch> ReadComponent(
+        FileStream mshFs, NResArchive archive)
+    {
+        var entry = archive.Files.FirstOrDefault(x => x.FileType == "0D 00 00 00");
+
+        if (entry is null)
+        {
+            throw new Exception("Archive doesn't contain file (0D)");
+        }
+
+        if (entry.ElementSize != ElementSize)
+        {
+            throw new Exception("Batch table component (0x0D) element size is not 20");
+        }
+
+        if (entry.FileLength % entry.ElementSize != 0)
+        {
+            throw new Exception("Batch table component (0x0D) payload size is not divisible by element size");
+        }
+
+        var data = new byte[entry.FileLength];
+        mshFs.Seek(entry.OffsetInFile, SeekOrigin.Begin);
+        mshFs.ReadExactly(data, 0, data.Length);
+
+        var elementBytes = data.Chunk(ElementSize);
+
+        var elements = elementBytes.Select(x => new Batch(
+            BinaryPrimitives.ReadUInt16LittleEndian(x.AsSpan(0)),
+            BinaryPrimitives.ReadUInt16LittleEndian(x.AsSpan(2)),
+            BinaryPrimitives.ReadUInt16LittleEndian(x.AsSpan(4)),
+            BinaryPrimitives.ReadUInt16LittleEndian(x.AsSpan(6)),
+            BinaryPrimitives.ReadUInt16LittleEndian(x.AsSpan(8)),
+            BinaryPrimitives.ReadUInt32LittleEndian(x.AsSpan(0xA)),
+            BinaryPrimitives.ReadUInt16LittleEndian(x.AsSpan(0xE)),
+            BinaryPrimitives.ReadUInt32LittleEndian(x.AsSpan(0x10)))).ToList();
+
+        return elements;
+    }
+
+    /// <summary>Batch 0x0D</summary>
+    /// <param name="BatchFlags">[0x00..0x02] Флаги batch. У FParkan: batchFlags.</param>
+    /// <param name="MaterialIndex">[0x02..0x04] Индекс material slot, резолвится через WEAR/MAT0 pipeline.</param>
+    /// <param name="Opaque4">[0x04..0x06] Opaque поле. Старое локальное имя: TriangleCount; не подтверждено.</param>
+    /// <param name="Opaque6">[0x06..0x08] Opaque поле. Сохранять побайтно в writer.</param>
+    /// <param name="IndexCount">[0x08..0x0A] Количество индексов в индексном буфере 0x06.</param>
+    /// <param name="IndexStart">[0x0A..0x0E] Первый индекс в индексном буфере 0x06.</param>
+    /// <param name="Opaque14">[0x0E..0x10] Opaque поле. Старое локальное имя: CountOf03; не подтверждено.</param>
+    /// <param name="BaseVertex">[0x10..0x14] Базовая вершина в position stream 0x03. У FParkan: baseVertex.</param>
+    public readonly record struct Batch(
+        ushort BatchFlags,
+        ushort MaterialIndex,
+        ushort Opaque4,
+        ushort Opaque6,
+        ushort IndexCount,
+        uint IndexStart,
+        ushort Opaque14,
+        uint BaseVertex);
+}