Erste Version

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Rtti.cs

@@ -0,0 +1,47 @@
+using System.Collections.Generic;
+
+namespace BSO
+{
+    /// <summary>
+    /// Klassenname eines C++-Objekts aus den MSVC-Typinfos (vtable[-1] -> CompleteObjectLocator -> TypeDescriptor).
+    /// So erkennen wir Spielobjekte (BaseVehicle, CarVehicle ...), ohne ihren Aufbau zu kennen.
+    /// </summary>
+    public static unsafe class Rtti
+    {
+        static readonly Dictionary<nint, string> byVtable = new();
+
+        /// <summary>Klassenname oder null, wenn obj kein gueltiges C++-Objekt ist.</summary>
+        public static string ClassName(nint obj)
+        {
+            if (!Mem.TryReadPtr(obj, out nint vtable) || !Mem.IsImage(vtable)) return null;
+            if (byVtable.TryGetValue(vtable, out string name)) return name;
+            name = Resolve(vtable);
+            byVtable[vtable] = name;
+            return name;
+        }
+
+        static string Resolve(nint vtable)
+        {
+            if (!Mem.TryReadPtr(vtable - 8, out nint col) || !Mem.IsImage(col) || !Mem.IsReadable(col, 24)) return null;
+            // x64: Signatur 1, Adressen als RVA relativ zum Modul; pSelf (RVA des Locators selbst) liefert die Modulbasis
+            if (*(int*)col != 1) return null;
+            uint typeRva = *(uint*)(col + 12);
+            uint selfRva = *(uint*)(col + 20);
+            nint typeDescriptor = col - (nint)selfRva + (nint)typeRva;
+            string raw = Mem.ReadAscii(typeDescriptor + 16, 256); // ".?AVBaseVehicle@@"
+            return Demangle(raw);
+        }
+
+        /// <summary>".?AVFoo@Bar@@" -> "Bar::Foo".</summary>
+        static string Demangle(string raw)
+        {
+            if (raw.Length < 6 || !raw.StartsWith(".?A")) return null;
+            string body = raw.Substring(4);
+            if (body.EndsWith("@@")) body = body.Substring(0, body.Length - 2);
+            if (body.Contains('?')) return body; // Templates usw. roh lassen
+            string[] parts = body.Split('@');
+            System.Array.Reverse(parts);
+            return string.Join("::", parts);
+        }
+    }
+}