Fix save-compat issues

game/migrator.py

@@ -6,6 +6,7 @@ from dcs.countries import countries_by_name
 
 from game.ato.packagewaypoints import PackageWaypoints
 from game.data.doctrine import MODERN_DOCTRINE, COLDWAR_DOCTRINE, WWII_DOCTRINE
+from game.theater import SeasonalConditions
 
 if TYPE_CHECKING:
     from game import Game
@@ -30,6 +31,7 @@ class Migrator:
         self._update_flights()
         self._update_squadrons()
         self._release_untasked_flights()
+        self._update_weather()
 
     def _update_doctrine(self) -> None:
         doctrines = [
@@ -118,3 +120,20 @@ class Migrator:
         for c in self.game.coalitions:
             if isinstance(c.faction.country, str):
                 c.faction.country = countries_by_name[c.faction.country]()
+
+    def _update_weather(self):
+        a = self.game.conditions.weather.atmospheric
+        try_set_attr(a, "turbulence_per_10cm", 0.1)
+        sc = self.game.theater.seasonal_conditions
+        self.game.theater.seasonal_conditions = SeasonalConditions(
+            summer_avg_pressure=sc.summer_avg_pressure,
+            winter_avg_pressure=sc.winter_avg_pressure,
+            summer_avg_temperature=sc.summer_avg_temperature,
+            winter_avg_temperature=sc.winter_avg_temperature,
+            temperature_day_night_difference=sc.temperature_day_night_difference,
+            high_avg_yearly_turbulence_per_10cm=1.2,
+            low_avg_yearly_turbulence_per_10cm=0.1,
+            solar_noon_turbulence_per_10cm=0.8,
+            midnight_turbulence_per_10cm=0.4,
+            weather_type_chances=sc.weather_type_chances,
+        )

game/theater/seasonalconditions.py

@@ -36,7 +36,7 @@ class WeatherTypeChances:
     clear_skies: float
 
 
-@dataclass(frozen=True)
+@dataclass
 class SeasonalConditions:
     # Units are inHg and degrees Celsius
     summer_avg_pressure: float

game/weather/atmosphericconditions.py

@@ -5,7 +5,7 @@ from dataclasses import dataclass
 from game.utils import Pressure
 
 
-@dataclass(frozen=True)
+@dataclass
 class AtmosphericConditions:
     #: Pressure at sea level.
     qnh: Pressure