From e2fd3891d1ff7b52358573e650d1a8aeb5a8d707 Mon Sep 17 00:00:00 2001
From: Wojtek Figat <wojtek@figat.pl>
Date: Mon, 27 Jan 2025 20:19:35 +0100
Subject: [PATCH] Fix regression in curve keyframes editing

#3179
---
 Source/Engine/Level/Actors/Spline.cpp | 4 ++--
 Source/Engine/Level/Actors/Spline.h   | 2 +-
 Source/Engine/Level/Spline.cs         | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/Source/Engine/Level/Actors/Spline.cpp b/Source/Engine/Level/Actors/Spline.cpp
index bc46c3da1..37842a89d 100644
--- a/Source/Engine/Level/Actors/Spline.cpp
+++ b/Source/Engine/Level/Actors/Spline.cpp
@@ -476,9 +476,9 @@ void Spline::GetKeyframes(MArray* data)
     Platform::MemoryCopy(MCore::Array::GetAddress(data), Curve.GetKeyframes().Get(), sizeof(Keyframe) * Curve.GetKeyframes().Count());
 }
 
-void Spline::SetKeyframes(MArray* data)
+void Spline::SetKeyframes(MArray* data, int32 keySize)
 {
-    Curve = Span<byte>((const byte*)MCore::Array::GetAddress(data), MCore::Array::GetLength(data));
+    Curve = Span<byte>(MCore::Array::GetAddress<byte>(data), keySize * MCore::Array::GetLength(data));
     UpdateSpline();
 }
 
diff --git a/Source/Engine/Level/Actors/Spline.h b/Source/Engine/Level/Actors/Spline.h
index 94df394c4..61a788b1d 100644
--- a/Source/Engine/Level/Actors/Spline.h
+++ b/Source/Engine/Level/Actors/Spline.h
@@ -372,7 +372,7 @@ private:
     // Internal bindings
 #if !COMPILE_WITHOUT_CSHARP
     API_FUNCTION(NoProxy) void GetKeyframes(MArray* data);
-    API_FUNCTION(NoProxy) void SetKeyframes(MArray* data);
+    API_FUNCTION(NoProxy) void SetKeyframes(MArray* data, int32 keySize);
 #endif
 
 public:
diff --git a/Source/Engine/Level/Spline.cs b/Source/Engine/Level/Spline.cs
index b75e5071c..d41cfb30e 100644
--- a/Source/Engine/Level/Spline.cs
+++ b/Source/Engine/Level/Spline.cs
@@ -34,7 +34,7 @@ namespace FlaxEngine
                 if (value == null)
                     value = Utils.GetEmptyArray<BezierCurve<Transform>.Keyframe>();
                 _keyframes = null;
-                Internal_SetKeyframes(__unmanagedPtr, value);
+                Internal_SetKeyframes(__unmanagedPtr, value, System.Runtime.CompilerServices.Unsafe.SizeOf<BezierCurve<Transform>.Keyframe>());
             }
         }