When an edge is deleted, all returning ants on that route still use it #11
Description
Ants remember their route taking and retrace their steps once they've reached the end point. If during this traversal one of the edges in their route is deleted, they just float over where the edge used to be.
Fix options:
- kill the ant off & spawn a new one
- have it get to the last possible edge then become lost?
- other?