Dan Albert cb3bf56d84 Add a real CAS ingress point.
Putting the ingress point directly on one end of the FLOT means that AI
flights won't start searching and engaging targets until they reach that
point. If the front line has advanced toward the flight's departure
airfield, it might overfly targets on its way to the IP.

Instead, place an IP for CAS the same way we place any other IP. The AI
will fly to that and start searching from there.

This also:

* Removes the midpoint waypoint, since it didn't serve any real purpose
* Names the FLOT boundary waypoints for what they actually are

Fixes https://github.com/dcs-liberation/dcs_liberation/issues/2231.
2023-08-10 00:47:13 -07:00

98 lines
3.1 KiB
Python

from __future__ import annotations
from collections.abc import Iterator
from dataclasses import dataclass
from datetime import datetime
from typing import TYPE_CHECKING, Type
from game.utils import feet
from .ibuilder import IBuilder
from .standard import StandardFlightPlan, StandardLayout
from .waypointbuilder import WaypointBuilder
from ..flightstate import InFlight
if TYPE_CHECKING:
from ..flightwaypoint import FlightWaypoint
@dataclass(frozen=True)
class RtbLayout(StandardLayout):
abort_location: FlightWaypoint
nav_to_destination: list[FlightWaypoint]
def iter_waypoints(self) -> Iterator[FlightWaypoint]:
yield self.departure
yield self.abort_location
yield from self.nav_to_destination
yield self.arrival
if self.divert is not None:
yield self.divert
yield self.bullseye
class RtbFlightPlan(StandardFlightPlan[RtbLayout]):
@staticmethod
def builder_type() -> Type[Builder]:
return Builder
@property
def abort_index(self) -> int:
return 1
@property
def tot_waypoint(self) -> FlightWaypoint:
return self.layout.abort_location
def tot_for_waypoint(self, waypoint: FlightWaypoint) -> datetime | None:
return None
def depart_time_for_waypoint(self, waypoint: FlightWaypoint) -> datetime | None:
return None
@property
def mission_begin_on_station_time(self) -> datetime | None:
return None
@property
def mission_departure_time(self) -> datetime:
return self.tot
class Builder(IBuilder[RtbFlightPlan, RtbLayout]):
def layout(self) -> RtbLayout:
if not isinstance(self.flight.state, InFlight):
raise RuntimeError(f"Cannot abort {self} because it is not in flight")
current_position = self.flight.state.estimate_position()
current_altitude, altitude_reference = self.flight.state.estimate_altitude()
altitude_is_agl = self.flight.unit_type.dcs_unit_type.helicopter
altitude = (
feet(1500)
if altitude_is_agl
else self.flight.unit_type.preferred_patrol_altitude
)
builder = WaypointBuilder(self.flight, self.flight.coalition)
abort_point = builder.nav(
current_position, current_altitude, altitude_reference == "RADIO"
)
abort_point.name = "ABORT AND RTB"
abort_point.pretty_name = "Abort and RTB"
abort_point.description = "Abort mission and return to base"
return RtbLayout(
departure=builder.takeoff(self.flight.departure),
abort_location=abort_point,
nav_to_destination=builder.nav_path(
current_position,
self.flight.arrival.position,
altitude,
altitude_is_agl,
),
arrival=builder.land(self.flight.arrival),
divert=builder.divert(self.flight.divert),
bullseye=builder.bullseye(),
)
def build(self, dump_debug_info: bool = False) -> RtbFlightPlan:
return RtbFlightPlan(self.flight, self.layout())