137 lines
4.5 KiB
Python

from __future__ import annotations
import random
from collections.abc import Iterator
from dataclasses import dataclass
from datetime import datetime, timedelta
from typing import TYPE_CHECKING, Type
from game.utils import Distance, Speed, feet
from .capbuilder import CapBuilder
from .patrolling import PatrollingFlightPlan, PatrollingLayout
from .waypointbuilder import WaypointBuilder
if TYPE_CHECKING:
from ..flightwaypoint import FlightWaypoint
@dataclass
class TarCapLayout(PatrollingLayout):
refuel: FlightWaypoint | None
def iter_waypoints(self) -> Iterator[FlightWaypoint]:
yield self.departure
yield from self.nav_to
yield self.patrol_start
yield self.patrol_end
if self.refuel is not None:
yield self.refuel
yield from self.nav_from
yield self.arrival
if self.divert is not None:
yield self.divert
yield self.bullseye
yield from self.custom_waypoints
def delete_waypoint(self, waypoint: FlightWaypoint) -> bool:
if waypoint == self.refuel:
self.refuel = None
return True
elif super().delete_waypoint(waypoint):
return True
return False
class TarCapFlightPlan(PatrollingFlightPlan[TarCapLayout]):
@property
def patrol_duration(self) -> timedelta:
# Note that this duration only has an effect if there are no
# flights in the package that have requested escort. If the package
# requests an escort the CAP self.flight will remain on station for the
# duration of the escorted mission, or until it is winchester/bingo.
return self.flight.coalition.doctrine.cap_duration
@property
def patrol_speed(self) -> Speed:
return self.flight.unit_type.preferred_patrol_speed(
self.layout.patrol_start.alt
)
@property
def engagement_distance(self) -> Distance:
return self.flight.coalition.doctrine.cap_engagement_range
@staticmethod
def builder_type() -> Type[Builder]:
return Builder
@property
def combat_speed_waypoints(self) -> set[FlightWaypoint]:
return {self.layout.patrol_start, self.layout.patrol_end}
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:
return self.patrol_end_time
return super().depart_time_for_waypoint(waypoint)
@property
def patrol_start_time(self) -> datetime:
start = self.package.escort_start_time
if start is not None:
return start + self.tot_offset
return self.tot
@property
def patrol_end_time(self) -> datetime:
end = self.package.escort_end_time
if end is not None:
return end
return super().patrol_end_time
class Builder(CapBuilder[TarCapFlightPlan, TarCapLayout]):
def layout(self) -> TarCapLayout:
location = self.package.target
preferred_alt = self.flight.unit_type.preferred_patrol_altitude
randomized_alt = preferred_alt + feet(random.randint(-2, 1) * 1000)
patrol_alt = max(
self.doctrine.min_patrol_altitude,
min(self.doctrine.max_patrol_altitude, randomized_alt),
)
builder = WaypointBuilder(self.flight)
orbit0p, orbit1p = self.cap_racetrack_for_objective(location, barcap=False)
start, end = builder.race_track(orbit0p, orbit1p, patrol_alt)
refuel = None
nav_from_origin = orbit1p
if self.package.waypoints is not None:
refuel = builder.refuel(self.package.waypoints.refuel)
nav_from_origin = refuel.position
return TarCapLayout(
departure=builder.takeoff(self.flight.departure),
nav_to=builder.nav_path(
self.flight.departure.position, orbit0p, patrol_alt
),
nav_from=builder.nav_path(
nav_from_origin, self.flight.arrival.position, patrol_alt
),
patrol_start=start,
patrol_end=end,
refuel=refuel,
arrival=builder.land(self.flight.arrival),
divert=builder.divert(self.flight.divert),
bullseye=builder.bullseye(),
custom_waypoints=list(),
)
def build(self, dump_debug_info: bool = False) -> TarCapFlightPlan:
return TarCapFlightPlan(self.flight, self.layout())