Ideas for making a grid out of multiple planes at runtime

Unity Engine
1

I’m currently creating a game that will use grid based movement. As of now my plan is to have different sections of the map interchanging, and these pieces are made out of a single probuilder plane. My question is, what would be the best way of me adding the walkable/unwalkable spaces to a grid at runtime, given the map can change?

Should I just add empty objects to the walkable spaces on the prefabs to signify where they are? Are there other better ideas?

Thanks in advance!

2

You could consider creating an object that does not have any time of renderer but does have a collider and have that object set to a specific layermask. You could then use a raycast to check if there is a collider in that specific layermask.