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https://github.com/dcs-retribution/dcs-retribution.git
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769fe12159
During package planning we don't care about the details of the flight plan, just the layout (to check if the layout is threatened and we need escorts). Splitting these will allow us to reduce the amount of work that must be done in each loop of the planning phase, potentially caching attempted flight plans between loops.
111 lines
3.4 KiB
Python
111 lines
3.4 KiB
Python
from __future__ import annotations
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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 feet
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from .ibuilder import IBuilder
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from .planningerror import PlanningError
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from .standard import StandardFlightPlan, StandardLayout
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from .waypointbuilder import WaypointBuilder
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if TYPE_CHECKING:
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from ..flight import Flight
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from ..flightwaypoint import FlightWaypoint
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class Builder(IBuilder):
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def build(self) -> AirliftLayout:
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cargo = self.flight.cargo
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if cargo is None:
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raise PlanningError(
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"Cannot plan transport mission for flight with no cargo."
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)
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altitude = feet(1500)
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altitude_is_agl = True
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builder = WaypointBuilder(self.flight, self.coalition)
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pickup = None
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nav_to_pickup = []
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if cargo.origin != self.flight.departure:
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pickup = builder.pickup(cargo.origin)
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nav_to_pickup = builder.nav_path(
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self.flight.departure.position,
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cargo.origin.position,
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altitude,
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altitude_is_agl,
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)
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return AirliftLayout(
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departure=builder.takeoff(self.flight.departure),
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nav_to_pickup=nav_to_pickup,
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pickup=pickup,
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nav_to_drop_off=builder.nav_path(
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cargo.origin.position,
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cargo.next_stop.position,
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altitude,
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altitude_is_agl,
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),
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drop_off=builder.drop_off(cargo.next_stop),
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nav_to_home=builder.nav_path(
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cargo.origin.position,
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self.flight.arrival.position,
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altitude,
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altitude_is_agl,
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),
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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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@dataclass(frozen=True)
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class AirliftLayout(StandardLayout):
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nav_to_pickup: list[FlightWaypoint]
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pickup: FlightWaypoint | None
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nav_to_drop_off: list[FlightWaypoint]
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drop_off: FlightWaypoint
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nav_to_home: list[FlightWaypoint]
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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_pickup
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if self.pickup:
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yield self.pickup
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yield from self.nav_to_drop_off
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yield self.drop_off
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yield from self.nav_to_home
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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 AirliftFlightPlan(StandardFlightPlan[AirliftLayout]):
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def __init__(self, flight: Flight, layout: AirliftLayout) -> None:
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super().__init__(flight, layout)
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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 tot_waypoint(self) -> FlightWaypoint | None:
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return self.layout.drop_off
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def tot_for_waypoint(self, waypoint: FlightWaypoint) -> timedelta | None:
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# TOT planning isn't really useful for transports. They're behind the front
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# lines so no need to wait for escorts or for other missions to complete.
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return None
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def depart_time_for_waypoint(self, waypoint: FlightWaypoint) -> timedelta | None:
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return None
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@property
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def mission_departure_time(self) -> timedelta:
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return self.package.time_over_target
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