Allow DEAD on EWRs.

gen/flights/flightplan.py

@@ -27,6 +27,7 @@ from theater import (
     SamGroundObject,
     TheaterGroundObject,
 )
+from theater.theatergroundobject import EwrGroundObject
 from .closestairfields import ObjectiveDistanceCache
 from .flight import Flight, FlightType, FlightWaypoint, FlightWaypointType
 from .traveltime import GroundSpeed, TravelTime
@@ -919,7 +920,9 @@ class FlightPlanBuilder:
         """
         location = self.package.target
 
-        if not isinstance(location, SamGroundObject):
+        is_ewr = isinstance(location, EwrGroundObject)
+        is_sam = isinstance(location, SamGroundObject)
+        if not is_ewr and not is_sam:
             logging.exception(f"Invalid Objective Location for DEAD flight {flight=} at {location=}")
             raise InvalidObjectiveLocation(flight.flight_type, location)
 

theater/theatergroundobject.py

@@ -291,6 +291,12 @@ class EwrGroundObject(BaseDefenseGroundObject):
         # Prefix the group names with the side color so Skynet can find them.
         return f"{self.faction_color}|{super().group_name}"
 
+    def mission_types(self, for_player: bool) -> Iterator[FlightType]:
+        from gen.flights.flight import FlightType
+        if not self.is_friendly(for_player):
+            yield FlightType.DEAD
+        yield from super().mission_types(for_player)
+
 
 class ShipGroundObject(NavalGroundObject):
     def __init__(self, name: str, group_id: int, position: Point,