Add new performance option: Disable idle aircraft at airfields (#37)

game/missiongenerator/aircraft/aircraftgenerator.py

@@ -151,6 +151,9 @@ class AircraftGenerator:
     def _spawn_unused_for(
         self, squadron: Squadron, country: Country, faction: Faction
     ) -> None:
+        if self.game.settings.perf_disable_idle_aircraft:
+            return
+
         assert isinstance(squadron.location, Airfield)
         for _ in range(squadron.untasked_aircraft):
             # Creating a flight even those this isn't a fragged mission lets us

game/settings/settings.py

@@ -482,6 +482,12 @@ class Settings:
         section=PERFORMANCE_SECTION,
         default=True,
     )
+    perf_disable_idle_aircraft: bool = boolean_option(
+        "Disable idle aircraft at airfields",
+        page=MISSION_GENERATOR_PAGE,
+        section=PERFORMANCE_SECTION,
+        default=False,
+    )
     # Performance culling
     perf_culling: bool = boolean_option(
         "Culling of distant units enabled",