Add unit name -> Liberation object map.

Generated units are added to this during mission generation so we can
map destroyed units back to the data that generated them. Currently only
implemented for aircraft as a proof of concept.

game/game.py

@@ -27,6 +27,7 @@ from .factions.faction import Faction
 from .infos.information import Information
 from .settings import Settings
 from .theater import ConflictTheater, ControlPoint, OffMapSpawn
+from .unitmap import UnitMap
 from .weather import Conditions, TimeOfDay
 
 COMMISION_UNIT_VARIETY = 4
@@ -173,15 +174,15 @@ class Game:
         self.events.append(event)
         return event
 
-    def initiate_event(self, event: Event):
+    def initiate_event(self, event: Event) -> UnitMap:
         #assert event in self.events
         logging.info("Generating {} (regular)".format(event))
-        event.generate()
+        return event.generate()
 
     def finish_event(self, event: Event, debriefing: Debriefing):
         logging.info("Finishing event {}".format(event))
         event.commit(debriefing)
-        if event.is_successfull(debriefing):
+        if event.is_successful(debriefing):
             self.budget += event.bonus()
 
         if event in self.events: