Find next carp migration step 
Records the next turf we want to travel to into the blackboard for other actions
Vars | |
| path_key | Blackboard key holding the list of turfs to migrate between |
|---|---|
| target_key | Blackboard key in which we record our next destination |
Var Details
path_key
Blackboard key holding the list of turfs to migrate between
target_key
Blackboard key in which we record our next destination