Unable to retrieve active GridGraph instance

General
1

I am trying to access a GridGraph in order to relocate it:

AstarPath.active.astarData.gridGraph // returns null

and

var g : AstarPath = grid.GetComponent("AstarPath") as AstarPath;
Debug.Log(g.astarData.gridGraph);  // also returns null

I only have one graph in my scene, it’s gizmo shows up and I’m able to modify it with AstarPath.active.UpdateGraphs. Any idea why can’t I seem to retrieve the instance?

2

Hi

When are you calling this?
All graphs are scanned in Awake, and shortcuts are also set up in Awake.
So make sure you execute this code in Start or later.

3

Hey Aron,

I’m calling it within Start. I just tried it again and its working now, it must have been caused by something else.

4

Figured it out. This happens after generating a cache for the grid graph. If there is a cache, I can’t reference it. If there is no cache, it works as expected.

5

Hi

Confirmed bug. Thanks for spotting it.
I have fixed it in my dev version. To solve this, move the astarData.UpdateShortcuts () call from the ScanLoop method in AstarPath.cs to the Initialize method.