From 824d6701d82df864cead332f5109987ffebf422d Mon Sep 17 00:00:00 2001
From: Wojtek Figat <wojtek@figat.pl>
Date: Mon, 12 Aug 2024 15:34:39 +0200
Subject: [PATCH] Add improved default value detection for scripting object
 references in bindings generator

---
 .../Bindings/BindingsGenerator.CSharp.cs          | 15 ++++++++++++++-
 Source/Tools/Flax.Build/Bindings/ClassInfo.cs     |  2 ++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.CSharp.cs b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.CSharp.cs
index 2b97a7168..7d8ba7d43 100644
--- a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.CSharp.cs
+++ b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.CSharp.cs
@@ -102,8 +102,22 @@ namespace Flax.Build.Bindings
 
         private static string GenerateCSharpDefaultValueNativeToManaged(BuildData buildData, string value, ApiTypeInfo caller, TypeInfo valueType = null, bool attribute = false, string managedType = null)
         {
+            ApiTypeInfo apiType = null;
             if (string.IsNullOrEmpty(value))
+            {
+                if (attribute && valueType != null && !valueType.IsArray)
+                {
+                    //if (valueType.Type == "")
+                    //ScriptingObjectReference
+                    apiType = FindApiTypeInfo(buildData, valueType, caller);
+
+                    // Object reference
+                    if (apiType != null && apiType.IsScriptingObject)
+                        return "null";
+                }
+
                 return null;
+            }
 
             // Special case for Engine TEXT macro
             if (value.StartsWith("TEXT(\"") && value.EndsWith("\")"))
@@ -150,7 +164,6 @@ namespace Flax.Build.Bindings
 
             value = value.Replace("::", ".");
             var dot = value.LastIndexOf('.');
-            ApiTypeInfo apiType = null;
             if (dot != -1)
             {
                 var type = new TypeInfo(value.Substring(0, dot));
diff --git a/Source/Tools/Flax.Build/Bindings/ClassInfo.cs b/Source/Tools/Flax.Build/Bindings/ClassInfo.cs
index 021b47989..ace04a2e0 100644
--- a/Source/Tools/Flax.Build/Bindings/ClassInfo.cs
+++ b/Source/Tools/Flax.Build/Bindings/ClassInfo.cs
@@ -17,6 +17,8 @@ namespace Flax.Build.Bindings
             "ScriptingObject",
             "ManagedScriptingObject",
             "PersistentScriptingObject",
+            "ScriptingObjectReference",
+            "AssetReference",
             "BinaryAsset",
             "SceneObject",
             "Asset",