dcs_liberation/game/ato/flightplans/shiprecoverytanker.py

96 lines
3.2 KiB
Python

from __future__ import annotations
from dataclasses import dataclass
from datetime import datetime, timedelta
from typing import Iterator, Type
from game.ato.flightplans.ibuilder import IBuilder
from game.ato.flightplans.standard import StandardFlightPlan, StandardLayout
from game.ato.flightplans.waypointbuilder import WaypointBuilder
from game.ato.flightwaypoint import FlightWaypoint
@dataclass(frozen=True)
class RecoveryTankerLayout(StandardLayout):
nav_to: list[FlightWaypoint]
recovery_ship: FlightWaypoint
nav_from: list[FlightWaypoint]
def iter_waypoints(self) -> Iterator[FlightWaypoint]:
yield self.departure
yield from self.nav_to
yield self.recovery_ship
yield from self.nav_from
yield self.arrival
if self.divert is not None:
yield self.divert
yield self.bullseye
class RecoveryTankerFlightPlan(StandardFlightPlan[RecoveryTankerLayout]):
@staticmethod
def builder_type() -> Type[Builder]:
return Builder
@property
def tot_waypoint(self) -> FlightWaypoint:
return self.layout.recovery_ship
@property
def mission_begin_on_station_time(self) -> datetime:
return self.package.time_over_target
@property
def mission_departure_time(self) -> datetime:
return self.patrol_end_time
@property
def patrol_start_time(self) -> datetime:
return self.package.time_over_target
@property
def patrol_end_time(self) -> datetime:
return self.tot + timedelta(hours=2)
def tot_for_waypoint(self, waypoint: FlightWaypoint) -> datetime | None:
if waypoint == self.tot_waypoint:
return self.tot
return None
def depart_time_for_waypoint(self, waypoint: FlightWaypoint) -> datetime | None:
if waypoint == self.tot_waypoint:
return self.mission_departure_time
return None
class Builder(IBuilder[RecoveryTankerFlightPlan, RecoveryTankerLayout]):
def layout(self) -> RecoveryTankerLayout:
builder = WaypointBuilder(self.flight, self.coalition)
# TODO: Propagate the ship position to the Tanker's TOT,
# so that we minimize the tanker's need to catch up to the carrier.
recovery_ship = self.package.target.position
recovery_tanker = builder.recovery_tanker(recovery_ship)
# We don't have per aircraft cruise altitudes, so just reuse patrol altitude?
tanker_type = self.flight.unit_type
nav_cruise_altitude = tanker_type.preferred_patrol_altitude
return RecoveryTankerLayout(
departure=builder.takeoff(self.flight.departure),
nav_to=builder.nav_path(
self.flight.departure.position, recovery_ship, nav_cruise_altitude
),
nav_from=builder.nav_path(
recovery_ship, self.flight.arrival.position, nav_cruise_altitude
),
recovery_ship=recovery_tanker,
arrival=builder.land(self.flight.arrival),
divert=builder.divert(self.flight.divert),
bullseye=builder.bullseye(),
)
def build(self) -> RecoveryTankerFlightPlan:
return RecoveryTankerFlightPlan(self.flight, self.layout())