Serialization of individual nodes

General
1

Hi,
I am probably doing something the way it wasn’t designed for, but bear with me :slight_smile:

Considering a case in which:

  1. I have a MonoBehaviour that has a reference to a single GraphNode (custom subclass of LevelGridNode marked with a Serializable attribute).
  2. The field is marked with the SerializeField attribute.
  3. I Instantiate (clone) the original object and after accessing the Node’s position of this cloned object it returns 0,0,0 as the Int3 isn’t marked as Serializable.

It would be awesome if I could do something like the above. Is there a reason why I cannot? Are there any workarounds?

EDIT:
I have now worked around this by implementing ISerializationCallbackReceiver and storing/restoring the position manually myself, but it seems like a terrible hack. I still would like to know what is the recommended way.

2

Hi

Nodes are not intended to be serialized that way. Even node indices are not guaranteed to remain the same.

If you are using a grid graph, I would instead recommend that you serialize the node.XCoordinateInGrid and node.ZCoordinateInGrid and then load the node using gridGraph.GetNode(x, z). Alternatively, store node.NodeInGridIndex and then load it using gridGraph.nodes[index].

1 Like
3

Yeah, I ended up doing just that. Thanks for the confirmation.