Hello. as you see, there is a map pathfinding problem.
The yellow tiles in the map are the Land, and blue ones are the ocean. The red font means there is a waterway, and the green font means there is a road. The correct path should be linked as road-road, waterway-waterway, road-harbor-waterway or waterway-harbor-road. Therefore,
2,6City can link to 2,4City via (2,6City)-(1,6)-(0,6)-(1,5)-(2,5)-(3,4Harbor)-(2,4City) ,
2,6City can link to 0,0City via (2,6City)-(1,6)-(0,6)-(1,5)-(2,5)-(3,4Harbor)-(2,4City)–(1,4)-
(0,3City)-(0,2)-(0,1)-(0,0City),
2,6City can link to 3,0City via (2,6City)-(1,6)-(0,6)-(1,5)-(2,5)-(3,4Harbor)-(3,3)–(3,2)-
(4,1Harbor)-(3,0City).
However, when I use GKGridGraph to create a map for Pathfinding, I don’t know how to tell the situation that waterway is not accessible to road. You can see, I DON’T want:
2,6City can link to 2,4City via (2,6City)-(2,5)-(2.4City) or
2,4City is linked to 2,2City because (2,4City)-(3,4Harbor)-(3,3)-(3,2)-(2,2City)
So, any suggestion? Thanks a lot.