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