ComponentSystemBase.GetSingleton supposed to support Managed IComponentData???

Unity Engine
,
1

the title says it all.

The declaration of ComponentSystemBase.GetSingleton is this:

        public T GetSingleton<T>()
            where T : struct, IComponentData
        {
            return CheckedState()->GetSingleton<T>();
        }

But since managed icomponentdata is supposed to make trasition to DOTS more easy it seems to be incorrect.

It probably should allow Managed IComponentData types.

2

At the bottom of ComponentSystemBase class we have ComponentSystemBaseManagedComponentExtensions which contains this:

        public static T GetSingleton<T>(this ComponentSystemBase sys) where T : class, IComponentData
        {
            var type = ComponentType.ReadOnly<T>();
            var query = sys.GetSingletonEntityQueryInternal(type);
            return query.GetSingleton<T>();
        }

As this has been implemented as an Extension Method, so to access ManagedComponents you need to call this.GetSingleton<T>()

For managed components we get this.HasSingleton<T>() and this.SetSingleton<T>() also. Again, implemented as Extension methods.

1 Like
3

Also if you don’t want to do anything with ManagedComponents, you can disable that using UNITY_DISABLE_MANAGED_COMPONENTS define in Project settings.