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https://github.com/dcs-liberation/dcs_liberation.git
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452848fd2a
Flights without a meaningful TOT make the code around startup time (and other scheduling behaviors) unnecessarily complicated because they have to handle unpredictable flight plans. We can simplify this by requiring that all flight plans have a waypoint associated with their TOT. For custom flight plans, we can just fall back to the takeoff waypoint. For RTB flight plans (which are only synthetic flight plans injected for aborted flights), we can use the abort point. This also means that all flight plans now have, at the very least, a departure waypoint. Deleting this waypoint is invalid even for custom flights, so that's no a problem.
94 lines
2.9 KiB
Python
94 lines
2.9 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 .standard import StandardFlightPlan, StandardLayout
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from .waypointbuilder import WaypointBuilder
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from ..flightstate import InFlight
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if TYPE_CHECKING:
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from ..flightwaypoint import FlightWaypoint
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@dataclass(frozen=True)
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class RtbLayout(StandardLayout):
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abort_location: FlightWaypoint
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nav_to_destination: list[FlightWaypoint]
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def iter_waypoints(self) -> Iterator[FlightWaypoint]:
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yield self.departure
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yield self.abort_location
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yield from self.nav_to_destination
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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 RtbFlightPlan(StandardFlightPlan[RtbLayout]):
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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 abort_index(self) -> int:
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return 1
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@property
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def tot_waypoint(self) -> FlightWaypoint:
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return self.layout.abort_location
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def tot_for_waypoint(self, waypoint: FlightWaypoint) -> timedelta | None:
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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 timedelta()
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class Builder(IBuilder[RtbFlightPlan, RtbLayout]):
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def layout(self) -> RtbLayout:
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if not isinstance(self.flight.state, InFlight):
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raise RuntimeError(f"Cannot abort {self} because it is not in flight")
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current_position = self.flight.state.estimate_position()
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current_altitude, altitude_reference = self.flight.state.estimate_altitude()
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altitude_is_agl = self.flight.unit_type.dcs_unit_type.helicopter
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altitude = (
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feet(1500)
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if altitude_is_agl
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else self.flight.unit_type.preferred_patrol_altitude
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)
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builder = WaypointBuilder(self.flight, self.flight.coalition)
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abort_point = builder.nav(
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current_position, current_altitude, altitude_reference == "RADIO"
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)
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abort_point.name = "ABORT AND RTB"
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abort_point.pretty_name = "Abort and RTB"
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abort_point.description = "Abort mission and return to base"
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return RtbLayout(
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departure=builder.takeoff(self.flight.departure),
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abort_location=abort_point,
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nav_to_destination=builder.nav_path(
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current_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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def build(self) -> RtbFlightPlan:
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return RtbFlightPlan(self.flight, self.layout())
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