Rts questionning

Hi.

I am currently tring to do a pathfinding system using unity integrated pathfinding system. Currently, it works fine but only for grounds unit. But i was wondering how could i add boat to my game.
I tried to set different areas in the navigation tab , but i don't know how to make a agent use only one area.
(Like a boat only use Water and a groundUnit only use Ground.)
(Brown : Boat)
(Grey : Ground Unit)
(Blue : Water)
(Green : Grass)


Thanks !

 

Look at the NavMeshAgent Area Mask Setting. I think that is what you are looking for.