4.5 (ch. 27) Cellular Automata Orphans Are Not Culled

[KyleHagad]

All tiles are considered "reachable" by the Dijkstra Map.

This results in orphan areas not being culled, and the possibility that completing a map might be impossible due to the exit stairs spawning in an orphan area.

Tested and verified with the "Run this chapter's example with web assembly, in your browser" link in section 4.5 of the tutorial

[mFragaBA]

I was able to "fix" the behavior by adding a call to self.map.populate_blocked(); before the culling step. This marks the wall tiles as blocked. The DijkstraMap is working as expected but since the blocked vector from Map was not updated the get_available_exits function which is used by the DijkstraMap was returning walls as available tiles