class PackageBuilder:
"""Builds a Package for the flights it receives."""
def __init__(self, location: MissionTarget,
closest_airfields: ClosestAirfields,
global_inventory: GlobalAircraftInventory, is_player: bool,
start_type: str) -> None:
self.package = Package(location)
self.allocator = AircraftAllocator(closest_airfields, global_inventory,
is_player)
self.global_inventory = global_inventory
self.start_type = start_type
def plan_flight(self, plan: ProposedFlight) -> bool:
"""Allocates aircraft for the given flight and adds them to the package.
If no suitable aircraft are available, False is returned. If the failed
flight was critical and the rest of the mission will be scrubbed, the
caller should return any previously planned flights to the inventory
using release_planned_aircraft.
"""
assignment = self.allocator.find_aircraft_for_flight(plan)
if assignment is None:
return False
airfield, aircraft = assignment
flight = Flight(self.package, aircraft, plan.num_aircraft, airfield,
plan.task, self.start_type)
self.package.add_flight(flight)
return True
def build(self) -> Package:
"""Returns the built package."""
return self.package
def release_planned_aircraft(self) -> None:
"""Returns any planned flights to the inventory."""
flights = list(self.package.flights)
for flight in flights:
self.global_inventory.return_from_flight(flight)
self.package.remove_flight(flight)
class PackageBuilder:
"""Builds a Package for the flights it receives."""
def __init__(
self,
location: MissionTarget,
closest_airfields: ClosestAirfields,
global_inventory: GlobalAircraftInventory,
is_player: bool,
package_country: str,
start_type: str,
) -> None:
self.closest_airfields = closest_airfields
self.is_player = is_player
self.package_country = package_country
self.package = Package(location)
self.allocator = AircraftAllocator(closest_airfields, global_inventory,
is_player)
self.global_inventory = global_inventory
self.start_type = start_type
def plan_flight(self, plan: ProposedFlight) -> bool:
"""Allocates aircraft for the given flight and adds them to the package.
If no suitable aircraft are available, False is returned. If the failed
flight was critical and the rest of the mission will be scrubbed, the
caller should return any previously planned flights to the inventory
using release_planned_aircraft.
"""
assignment = self.allocator.find_aircraft_for_flight(plan)
if assignment is None:
return False
airfield, aircraft = assignment
if isinstance(airfield, OffMapSpawn):
start_type = "In Flight"
else:
start_type = self.start_type
flight = Flight(
self.package,
self.package_country,
aircraft,
plan.num_aircraft,
plan.task,
start_type,
departure=airfield,
arrival=airfield,
divert=self.find_divert_field(aircraft, airfield),
)
self.package.add_flight(flight)
return True
def find_divert_field(self, aircraft: Type[FlyingType],
arrival: ControlPoint) -> Optional[ControlPoint]:
divert_limit = nautical_miles(150)
for airfield in self.closest_airfields.airfields_within(divert_limit):
if airfield.captured != self.is_player:
continue
if airfield == arrival:
continue
if not airfield.can_operate(aircraft):
continue
if isinstance(airfield, OffMapSpawn):
continue
return airfield
return None
def build(self) -> Package:
"""Returns the built package."""
return self.package
def release_planned_aircraft(self) -> None:
"""Returns any planned flights to the inventory."""
flights = list(self.package.flights)
for flight in flights:
self.global_inventory.return_from_flight(flight)
self.package.remove_flight(flight)