Layer index limit

[mpowell90]

I'm reviewing the viability of using polyanya for nav mesh generation and pathfinding across a map using procedurally generated terrain chunks. Assuming a singular NavMesh which uses layers to connect adjacent terrain chunks, the u8 layer index limit for stitching becomes an issue.

The chunking algorithm i've designed spawns / despawns adjacent terrain chunks around the characters as they traverse the map but this can lead to more than 255 layers.

Is there a reason for the u8 limit? Could this be increased?
Is there a better approach I could take to traverse separate nav meshes rather than attempting to stitch layers together?

Happy to submit a PR if they are welcome?

[Utope]

I will also run into this issue eventually. bump