Respect the function when calling a function from Lua

In the case of LuaComponent, this allows the user to specify whether the
function is to be called on the actor (default behavior) or on the
LuaComponent itself.

Author: micheljung

Source/LuaMachine/Private/LuaState.cpp

@@ -747,11 +747,19 @@ void ULuaState::FromLuaValue(FLuaValue& LuaValue, UObject* CallContext, lua_Stat
 		}
 		if (CallContext)
 		{
-			UObject* FunctionOwner = CallContext;
-			if (ULuaComponent* LuaComponent = Cast<ULuaComponent>(CallContext))
+			const UObject* FunctionOwner;
+			if (LuaValue.Object != nullptr)
+			{
+				FunctionOwner = LuaValue.Object;
+			}
+			else if (const ULuaComponent* LuaComponent = Cast<ULuaComponent>(CallContext))
 			{
 				FunctionOwner = LuaComponent->GetOwner();
 			}
+			else
+			{
+				FunctionOwner = CallContext;
+			}
 
 			if (FunctionOwner)
 			{
@@ -2985,11 +2993,19 @@ void ULuaState::SetupAndAssignUserDataMetatable(UObject * Context, TMap<FString,
 		// first check for UFunction
 		if (Pair.Value.Type == ELuaValueType::UFunction)
 		{
-			UObject* FunctionOwner = Context;
-			if (ULuaComponent* LuaComponent = Cast<ULuaComponent>(Context))
+			const UObject* FunctionOwner;
+			if (Pair.Value.Object != nullptr)
+			{
+				FunctionOwner = Pair.Value.Object;
+			}
+			else if (const ULuaComponent* LuaComponent = Cast<ULuaComponent>(Context))
 			{
 				FunctionOwner = LuaComponent->GetOwner();
 			}
+			else
+			{
+				FunctionOwner = Context;
+			}
 
 			if (FunctionOwner)
 			{