Default Value as None

[atmucParticipant]

i have a field like;

public BBParameter<Vector2> DragAmountDelta;

how can i set None as default value for this?

[GavalakisKeymaster]

Hey,

The easiest way would be this:

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public BBParameter<Vector2> DragAmountDelta = new BBParameter<Vector2>{useBlackboard = true};

Also remember that if you only want to allow selection from the Blackboard and not allow a direct value assignment, you can use the
[BlackboardOnly] attribute above the field.

Cheers!

[atmucParticipant]

thanks. it worked like i expected. in that way i will prevent overriding existing values.

[atmucParticipant]

i have a problem 🙂 i use following action. i change SourceGO to direct value in unity.i set an game object from scene. it is not prefab. it works when i play it. when i restart unity or build project SourceGO field is empty. is it normal?

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public class GOPositionToVector3Action : ActionTask<Transform>     {           public BBParameter<GameObject> SourceGO = new BBParameter<GameObject> { useBlackboard = true };         public BBParameter<Vector3> Position = new BBParameter<Vector3> { useBlackboard = true };           protected override string info         {             get { return "GOPositionToVector3Action "; }         }           protected override void OnExecute()         {             GameObject source;               if (!SourceGO.isNone)             {                 source = SourceGO.value;             }             else             {                 source = agent.gameObject;             }               Position.value = source.transform.position;             EndAction();         }           protected override void OnUpdate()         {                      }     }

[GavalakisKeymaster]

Hey,

I just re-checked this and works as expected. Hm…
I know you said that the game objecty you reference is not a prefab, but is the GraphOwner a prefab, or the Graph a non-bound graph reference (an Asset graph)?

This is the only thing I can think of going on here. Can you confirm?

Unity does not allow having a scene reference IN a prefab or asset reference. You can have an asset reference IN a scene object.

Thanks.

[atmucParticipant]

none of them prefab. i will also test it with an empty scene. maybe another thing cause my problem. i will also check it another platform than Android.

[atmucParticipant]

when you set FSM as Asset it does not work for GameObject reference. when i set FSM as Bound it works fine. i think you rechecked it as Bound 🙂

[atmucParticipant]

is it the same for you?

[GavalakisKeymaster]

Hey,

Sorry for late reply.

I think I understand the problem here 🙂

Graph Assets and Unity assets in general, can’t have references to scene objects. This is a Unity known limatation. It’s simply impossible 🙂

Bound Graphs exists exactly for that reason. To allow you to assign scene object references within the graph.
If you want to use Asset Graphs, the way to work with scene object references like game objects, would be to use Blackboard variables. Since the Blackboard is a component attached on the agent which is not an asset but in the scene, it CAN have references to other scene objects.

Let me know if this helps.

Cheers!

[Author]

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