Path: calculatePartial

General
1
  • a path that the AI has calculated may become blocked by unwalkable tags (ie for a door).
  • if that happens, then the AI keeps trying to recalculate a path.
  • the info message says to use “calculatePartial” to prevent this.

If I set a destination directly on AIPath with
this.destination = destination;
How can I set calculatePartial for all pathes in this case?

2

Hi

There’s no exposed option for calculatepartial on the AIPath script at the moment. Using calculatePartial requires either that:

  1. You use ai.SetPath instead.
  2. or that you sub-class the AIPath script and override the SearchPath method to add calculatePartial = true.
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3

Regarding Option 2 (which would be the best for me):
I have sub-classed AIPath, but I can not access calculatePartial in SearchPath() of the child class either.
How would I go about doing that?

4

Edit: I tried using setWalkability instead of tags, since an old forum post indicated that would
make calculatePartial unnecessary.

But the agent just walks over the area where I modified the walkability.

What could possibly be wrong with this:

        GraphUpdateObject guo = new GraphUpdateObject(_doorWalkabilityCollider.bounds);
        guo.modifyWalkability = true;
        guo.setWalkability = true;
        AstarPath.active.UpdateGraphs(guo);
5

I needed to also add:

guo.updatePhysics = false;

Without this line, walkability will not update.

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6

You will need to duplicate the implementation of the original AIPath.SearchPath function, and then set the calculatePartial field on the created path object.
But yeah, I really should be exposing this field so that this is easier to do.

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