From 844fad2cedb7a9bebd906bbab9822f56a5f6bd09 Mon Sep 17 00:00:00 2001
From: Wojtek Figat <wojtek@figat.pl>
Date: Sat, 8 Jan 2022 18:29:13 +0100
Subject: [PATCH] Fix crash when animation has anim events and scripting is
 disposed before content

---
 Source/Engine/Content/Assets/Animation.cpp | 18 ++++++++++++++++++
 Source/Engine/Content/Assets/Animation.h   |  5 +++++
 2 files changed, 23 insertions(+)

diff --git a/Source/Engine/Content/Assets/Animation.cpp b/Source/Engine/Content/Assets/Animation.cpp
index 789153c21..8788f1466 100644
--- a/Source/Engine/Content/Assets/Animation.cpp
+++ b/Source/Engine/Content/Assets/Animation.cpp
@@ -502,6 +502,24 @@ void Animation::OnSkinnedModelUnloaded(Asset* obj)
     MappingCache.Remove(i);
 }
 
+void Animation::OnScriptingDispose()
+{
+    // Dispose any events to prevent crashes (scripting is released before content)
+    for (auto& e : Events)
+    {
+        for (auto& k : e.Second.GetKeyframes())
+        {
+            if (k.Value.Instance)
+            {
+                Delete(k.Value.Instance);
+                k.Value.Instance = nullptr;
+            }
+        }
+    }
+
+    BinaryAsset::OnScriptingDispose();
+}
+
 Asset::LoadResult Animation::load()
 {
     // Get stream with animations data
diff --git a/Source/Engine/Content/Assets/Animation.h b/Source/Engine/Content/Assets/Animation.h
index 8c9b9c095..80085e392 100644
--- a/Source/Engine/Content/Assets/Animation.h
+++ b/Source/Engine/Content/Assets/Animation.h
@@ -163,6 +163,11 @@ private:
 
     void OnSkinnedModelUnloaded(Asset* obj);
 
+public:
+
+    // [BinaryAsset]
+    void OnScriptingDispose() override;
+
 protected:
 
     // [BinaryAsset]