Layer Grid Graph with Ladder

General
1

I am using Layer Grid Graph, because my procedurally generated world has multiple overlapping levels.

The levels are not physically connected with geometry, but are suppose to be reached via “Ladder” points between the levels.

How do I generate path which leads to one of the bottom ladder point, from which I can transfer the NPC to the upper ladder points, from which then the path leads to the destination?

I read through all the documentation. It seems that I need to use Link. But I couldn’t get it to work.

Thanks
David

2

I have managed to use Link to achieve something close to what I want with GridGraph (but not with LayeredGridGraph). The documentation on Link is almost non-existent (please show me where it is if I am wrong) but it is very useful. It allows two graphs to be connected. The way to use it is to place an empty GameObject on each graph, select both GameObjects in the Editor and select Edit/Pathfinding/Link Pair. Now I have figure out how to do this in code.

Is there plan add Link to LayeredGridGraph? ETA?

Thanks
David