Update ControlPoint UI to use milsymbol library.

This gets us out of the business of maintaining our own icons. The
milsymbol library generates the SVG data needed to display anything
covered by APP-6.

game/theater/controlpoint.py

@@ -27,12 +27,21 @@ from dcs.ships import Forrestal, KUZNECOW, LHA_Tarawa, Stennis, Type_071
 from dcs.terrain.terrain import Airport, ParkingSlot
 from dcs.unitgroup import ShipGroup, StaticGroup
 
+from game.ato.closestairfields import ObjectiveDistanceCache
 from game.ground_forces.combat_stance import CombatStance
 from game.point_with_heading import PointWithHeading
 from game.runways import RunwayAssigner, RunwayData
 from game.scenery_group import SceneryGroup
+from game.sidc import (
+    Entity,
+    LandInstallationEntity,
+    SeaSurfaceEntity,
+    StandardIdentity,
+    Status,
+    SymbolIdentificationCode,
+    SymbolSet,
+)
 from game.utils import Heading
-from game.ato.closestairfields import ObjectiveDistanceCache
 from .base import Base
 from .missiontarget import MissionTarget
 from .theatergroundobject import (
@@ -342,6 +351,29 @@ class ControlPoint(MissionTarget, ABC):
     def captured(self) -> bool:
         return self.coalition.player
 
+    def sidc(self) -> SymbolIdentificationCode:
+        iff = (
+            StandardIdentity.FRIEND if self.captured else StandardIdentity.HOSTILE_FAKER
+        )
+
+        if self.status is ControlPointStatus.Functional:
+            status = Status.PRESENT
+        elif self.status is ControlPointStatus.Damaged:
+            status = Status.PRESENT_DAMAGED
+        elif self.status is ControlPointStatus.Destroyed:
+            status = Status.PRESENT_DESTROYED
+        else:
+            raise ValueError(f"Unexpected ControlPointStatus: {self.status}")
+
+        symbol_set, entity = self.symbol_set_and_entity()
+        return SymbolIdentificationCode(
+            standard_identity=iff, symbol_set=symbol_set, status=status, entity=entity
+        )
+
+    @abstractmethod
+    def symbol_set_and_entity(self) -> tuple[SymbolSet, Entity]:
+        ...
+
     @property
     def ground_objects(self) -> List[TheaterGroundObject]:
         return list(self.connected_objectives)
@@ -875,6 +907,9 @@ class Airfield(ControlPoint):
         self.airport = airport
         self._runway_status = RunwayStatus()
 
+    def symbol_set_and_entity(self) -> tuple[SymbolSet, Entity]:
+        return SymbolSet.LAND_INSTALLATIONS, LandInstallationEntity.AIPORT_AIR_BASE
+
     def can_operate(self, aircraft: AircraftType) -> bool:
         # TODO: Allow helicopters.
         # Need to implement ground spawns so the helos don't use the runway.
@@ -1058,6 +1093,9 @@ class Carrier(NavalControlPoint):
             cptype=ControlPointType.AIRCRAFT_CARRIER_GROUP,
         )
 
+    def symbol_set_and_entity(self) -> tuple[SymbolSet, Entity]:
+        return SymbolSet.SEA_SURFACE, SeaSurfaceEntity.CARRIER
+
     def mission_types(self, for_player: bool) -> Iterator[FlightType]:
         from game.ato import FlightType
 
@@ -1099,6 +1137,9 @@ class Lha(NavalControlPoint):
             cptype=ControlPointType.LHA_GROUP,
         )
 
+    def symbol_set_and_entity(self) -> tuple[SymbolSet, Entity]:
+        return SymbolSet.SEA_SURFACE, SeaSurfaceEntity.AMPHIBIOUS_ASSAULT_SHIP_GENERAL
+
     def capture(self, game: Game, for_player: bool) -> None:
         raise RuntimeError("LHAs cannot be captured")
 
@@ -1133,6 +1174,9 @@ class OffMapSpawn(ControlPoint):
             cptype=ControlPointType.OFF_MAP,
         )
 
+    def symbol_set_and_entity(self) -> tuple[SymbolSet, Entity]:
+        return SymbolSet.LAND_INSTALLATIONS, LandInstallationEntity.AIPORT_AIR_BASE
+
     def capture(self, game: Game, for_player: bool) -> None:
         raise RuntimeError("Off map control points cannot be captured")
 
@@ -1195,6 +1239,9 @@ class Fob(ControlPoint):
         )
         self.name = name
 
+    def symbol_set_and_entity(self) -> tuple[SymbolSet, Entity]:
+        return SymbolSet.LAND_INSTALLATIONS, LandInstallationEntity.MILITARY_BASE
+
     def runway_is_operational(self) -> bool:
         return self.has_helipads