AstarPath.active.UpdateGraphs scans outside specified bounds

General
#1

Hi, I’m having trouble with AstarPath.active.UpdateGraphs(Bounds), as my Grid Graph is consistently updating for collisions outside of the specified bounds.

Here I have two tiles with a ‘wall’ template on them. The bottom wall will be built first.
scanbug1

As you can see, the bounds of the BoxCollider2D are exactly the size of 1 in game tile. The grid graphs is configured to scan for nodes in the center of each tile.
scanbug2

Once the “Construction” task for the bottom wall is complete, I call the following code

public virtual void OnConstructionComplete()
    {
        isConstructed = true;
        AstarPath.active.UpdateGraphs(GetComponent<BoxCollider2D>().bounds);
    }

However, the graph detects the colliders of both the constructed bottom wall (correct), and the non-constructed adjacent wall.
scanbug3

The adjacent wall should be well outside the specified bounds and I am using a fairly small circle to detect collisions.

scanbug4
scanbug4387×612 24.3 KB

Do you have any idea what I might be doing wrong? Thanks

#2

Hi,

From the replies ive seen from Aron on this, this is expected. It has to calculate the adjacent areas for many reasons but is expected.

#3

Yes. The updating the graph using a bounding box will recalculate everything that might need to be recalculated to account for changes inside that bounding box.
I would recommend that you put your non-constructed wall in a different layer while it is not yet constructed.

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