Add SetCutsceneParentIndex.

Penumbra.Api

@@ -1 +1 @@
-Subproject commit cfc51714f74cae93608bc507775a9580cd1801de
+Subproject commit b28288ee9668425f49f41cba88e8dc417ad62aff

Penumbra/Api/IpcTester.cs

@@ -484,7 +484,9 @@ public class IpcTester : IDisposable
         private DateTimeOffset _lastResolvedGamePathTime  = DateTimeOffset.MaxValue;
         private string         _currentDrawObjectString   = string.Empty;
         private IntPtr         _currentDrawObject         = IntPtr.Zero;
-        private int            _currentCutsceneActor      = 0;
+        private int            _currentCutsceneActor;
+        private int            _currentCutsceneParent;
+        private PenumbraApiEc  _cutsceneError = PenumbraApiEc.Success;
 
         public GameState(DalamudPluginInterface pi)
         {
@@ -507,7 +509,14 @@ public class IpcTester : IDisposable
                     ? tmp
                     : IntPtr.Zero;
 
-            ImGui.InputInt("Cutscene Actor", ref _currentCutsceneActor, 0);
+            ImGui.InputInt("Cutscene Actor",  ref _currentCutsceneActor,  0);
+            ImGui.InputInt("Cutscene Parent", ref _currentCutsceneParent, 0);
+            if (_cutsceneError is not PenumbraApiEc.Success)
+            {
+                ImGui.SameLine();
+                ImGui.TextUnformatted("Invalid Argument on last Call");
+            }
+
             using var table = ImRaii.Table(string.Empty, 3, ImGuiTableFlags.SizingFixedFit);
             if (!table)
                 return;
@@ -526,6 +535,10 @@ public class IpcTester : IDisposable
             DrawIntro(Ipc.GetCutsceneParentIndex.Label, "Cutscene Parent");
             ImGui.TextUnformatted(Ipc.GetCutsceneParentIndex.Subscriber(_pi).Invoke(_currentCutsceneActor).ToString());
 
+            DrawIntro(Ipc.SetCutsceneParentIndex.Label, "Cutscene Parent");
+            if (ImGui.Button("Set Parent"))
+                _cutsceneError = Ipc.SetCutsceneParentIndex.Subscriber(_pi).Invoke(_currentCutsceneActor, _currentCutsceneParent);
+
             DrawIntro(Ipc.CreatingCharacterBase.Label, "Last Drawobject created");
             if (_lastCreatedGameObjectTime < DateTimeOffset.Now)
                 ImGui.TextUnformatted(_lastCreatedDrawObject != IntPtr.Zero

Penumbra/Api/PenumbraApi.cs

@@ -600,6 +600,15 @@ public class PenumbraApi : IDisposable, IPenumbraApi
         return _cutsceneService.GetParentIndex(actorIdx);
     }
 
+    public PenumbraApiEc SetCutsceneParentIndex(int copyIdx, int newParentIdx)
+    {
+        CheckInitialized();
+        if (_cutsceneService.SetParentIndex(copyIdx, newParentIdx))
+            return PenumbraApiEc.Success;
+
+        return PenumbraApiEc.InvalidArgument;
+    }
+
     public IList<(string, string)> GetModList()
     {
         CheckInitialized();

Penumbra/Api/PenumbraIpcProviders.cs

@@ -47,6 +47,7 @@ public class PenumbraIpcProviders : IDisposable
     // Game State
     internal readonly FuncProvider<nint, (nint, string)>            GetDrawObjectInfo;
     internal readonly FuncProvider<int, int>                        GetCutsceneParentIndex;
+    internal readonly FuncProvider<int, int, PenumbraApiEc>         SetCutsceneParentIndex;
     internal readonly EventProvider<nint, string, nint, nint, nint> CreatingCharacterBase;
     internal readonly EventProvider<nint, string, nint>             CreatedCharacterBase;
     internal readonly EventProvider<nint, string, string>           GameObjectResourcePathResolved;
@@ -171,6 +172,7 @@ public class PenumbraIpcProviders : IDisposable
         // Game State
         GetDrawObjectInfo      = Ipc.GetDrawObjectInfo.Provider(pi, Api.GetDrawObjectInfo);
         GetCutsceneParentIndex = Ipc.GetCutsceneParentIndex.Provider(pi, Api.GetCutsceneParentIndex);
+        SetCutsceneParentIndex = Ipc.SetCutsceneParentIndex.Provider(pi, Api.SetCutsceneParentIndex);
         CreatingCharacterBase = Ipc.CreatingCharacterBase.Provider(pi,
             () => Api.CreatingCharacterBase += CreatingCharacterBaseEvent,
             () => Api.CreatingCharacterBase -= CreatingCharacterBaseEvent);
@@ -293,6 +295,7 @@ public class PenumbraIpcProviders : IDisposable
         // Game State
         GetDrawObjectInfo.Dispose();
         GetCutsceneParentIndex.Dispose();
+        SetCutsceneParentIndex.Dispose();
         CreatingCharacterBase.Dispose();
         CreatedCharacterBase.Dispose();
         GameObjectResourcePathResolved.Dispose();

Penumbra/Interop/PathResolving/CutsceneService.cs

@@ -56,6 +56,24 @@ public sealed class CutsceneService : IService, IDisposable
     public int GetParentIndex(int idx)
         => GetParentIndex((ushort)idx);
 
+    public bool SetParentIndex(int copyIdx, int parentIdx)
+    {
+        if (copyIdx is < CutsceneStartIdx or >= CutsceneEndIdx)
+            return false;
+
+        if (parentIdx is < -1 or >= CutsceneEndIdx)
+            return false;
+
+        if (_objects.GetObjectAddress(copyIdx) == nint.Zero)
+            return false;
+
+        if (parentIdx != -1 && _objects.GetObjectAddress(parentIdx) == nint.Zero)
+            return false;
+
+        _copiedCharacters[copyIdx - CutsceneStartIdx] = (short)parentIdx;
+        return true;
+    }
+
     public short GetParentIndex(ushort idx)
     {
         if (idx is >= CutsceneStartIdx and < CutsceneEndIdx)