Save the TOT offset in the flight plan.

Prep work for exposing this to the UI.

game/ato/flightplans/flightplan.py

@@ -21,6 +21,7 @@ from .planningerror import PlanningError
 from ..flightwaypointtype import FlightWaypointType
 from ..starttype import StartType
 from ..traveltime import GroundSpeed, TravelTime
+from ...savecompat import has_save_compat_for
 
 if TYPE_CHECKING:
     from game.dcs.aircrafttype import FuelConsumption
@@ -62,6 +63,13 @@ class FlightPlan(ABC, Generic[LayoutT]):
     def __init__(self, flight: Flight, layout: LayoutT) -> None:
         self.flight = flight
         self.layout = layout
+        self.tot_offset = self.default_tot_offset()
+
+    @has_save_compat_for(7)
+    def __setstate__(self, state: dict[str, Any]) -> None:
+        if "tot_offset" not in state:
+            state["tot_offset"] = self.default_tot_offset()
+        self.__dict__.update(state)
 
     @property
     def package(self) -> Package:
@@ -195,8 +203,7 @@ class FlightPlan(ABC, Generic[LayoutT]):
             [meters(cp.position.distance_to_point(w.position)) for w in self.waypoints]
         )
 
-    @property
-    def tot_offset(self) -> timedelta:
+    def default_tot_offset(self) -> timedelta:
         """This flight's offset from the package's TOT.
 
         Positive values represent later TOTs. An offset of -2 minutes is used

game/ato/flightplans/formationattack.py

@@ -25,10 +25,6 @@ if TYPE_CHECKING:
 
 
 class FormationAttackFlightPlan(FormationFlightPlan, ABC):
-    @property
-    def lead_time(self) -> timedelta:
-        return timedelta()
-
     @property
     def package_speed_waypoints(self) -> set[FlightWaypoint]:
         return {
@@ -50,13 +46,6 @@ class FormationAttackFlightPlan(FormationFlightPlan, ABC):
     def tot_waypoint(self) -> FlightWaypoint:
         return self.layout.targets[0]
 
-    @property
-    def tot_offset(self) -> timedelta:
-        try:
-            return -self.lead_time
-        except AttributeError:
-            return timedelta()
-
     @property
     def target_area_waypoint(self) -> FlightWaypoint:
         return FlightWaypoint(

game/ato/flightplans/sead.py

@@ -16,9 +16,8 @@ class SeadFlightPlan(FormationAttackFlightPlan):
     def builder_type() -> Type[Builder]:
         return Builder
 
-    @property
-    def lead_time(self) -> timedelta:
-        return timedelta(minutes=1)
+    def default_tot_offset(self) -> timedelta:
+        return -timedelta(minutes=1)
 
 
 class Builder(FormationAttackBuilder[SeadFlightPlan, FormationAttackLayout]):

game/ato/flightplans/sweep.py

@@ -38,10 +38,6 @@ class SweepLayout(LoiterLayout):
 
 
 class SweepFlightPlan(LoiterFlightPlan):
-    @property
-    def lead_time(self) -> timedelta:
-        return timedelta(minutes=5)
-
     @staticmethod
     def builder_type() -> Type[Builder]:
         return Builder
@@ -54,9 +50,8 @@ class SweepFlightPlan(LoiterFlightPlan):
     def tot_waypoint(self) -> FlightWaypoint:
         return self.layout.sweep_end
 
-    @property
-    def tot_offset(self) -> timedelta:
-        return -self.lead_time
+    def default_tot_offset(self) -> timedelta:
+        return -timedelta(minutes=5)
 
     @property
     def sweep_start_time(self) -> datetime:

game/ato/flightplans/tarcap.py

@@ -34,10 +34,6 @@ class TarCapLayout(PatrollingLayout):
 
 
 class TarCapFlightPlan(PatrollingFlightPlan[TarCapLayout]):
-    @property
-    def lead_time(self) -> timedelta:
-        return timedelta(minutes=2)
-
     @property
     def patrol_duration(self) -> timedelta:
         # Note that this duration only has an effect if there are no
@@ -64,9 +60,8 @@ class TarCapFlightPlan(PatrollingFlightPlan[TarCapLayout]):
     def combat_speed_waypoints(self) -> set[FlightWaypoint]:
         return {self.layout.patrol_start, self.layout.patrol_end}
 
-    @property
-    def tot_offset(self) -> timedelta:
-        return -self.lead_time
+    def default_tot_offset(self) -> timedelta:
+        return -timedelta(minutes=2)
 
     def depart_time_for_waypoint(self, waypoint: FlightWaypoint) -> datetime | None:
         if waypoint == self.layout.patrol_end: