mirror of
https://github.com/dcs-retribution/dcs-retribution.git
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e03d710d53
Test cases: 1. Target is not threatened. The IP should be placed on a direct heading from the origin to the target at the max ingress distance, or very near the origin airfield if the airfield is closer to the target than the IP distance. 2. Unthreatened home zone, max IP between origin and target, safe locations available for IP. The IP should be placed in LAR at the closest point to home. 3. Unthreatened home zone, origin within LAR, safe locations available for IP. The IP should be placed near the origin airfield to prevent backtracking more than needed. 4. Unthreatened home zone, origin entirely nearer the target than LAR, safe locations available for IP. The IP should be placed in LAR as close as possible to the origin. 5. Threatened home zone, safe locations available for IP. The IP should be placed in LAR as close as possible to the origin. 6. No safe IP. The IP should be placed in LAR at the point nearest the threat boundary.
1850 lines
66 KiB
Python
1850 lines
66 KiB
Python
"""Flight plan generation.
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Flights are first planned generically by either the player or by the
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MissionPlanner. Those only plan basic information like the objective, aircraft
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type, and the size of the flight. The FlightPlanBuilder is responsible for
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generating the waypoints for the mission.
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"""
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from __future__ import annotations
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import logging
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import math
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import random
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from dataclasses import dataclass, field
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from datetime import timedelta
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from functools import cached_property
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from typing import Iterator, List, Optional, Set, TYPE_CHECKING, Tuple
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from dcs.mapping import Point
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from dcs.unit import Unit
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from shapely.geometry import Point as ShapelyPoint
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from game.data.doctrine import Doctrine
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from game.flightplan import IpZoneGeometry
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from game.theater import (
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Airfield,
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ControlPoint,
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FrontLine,
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MissionTarget,
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SamGroundObject,
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TheaterGroundObject,
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NavalControlPoint,
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ConflictTheater,
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)
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from game.theater.theatergroundobject import (
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EwrGroundObject,
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NavalGroundObject,
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BuildingGroundObject,
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)
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from game.threatzones import ThreatZones
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from game.utils import Distance, Speed, feet, meters, nautical_miles, knots
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from .closestairfields import ObjectiveDistanceCache
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from .flight import Flight, FlightType, FlightWaypoint, FlightWaypointType
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from .traveltime import GroundSpeed, TravelTime
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from .waypointbuilder import StrikeTarget, WaypointBuilder
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from ..conflictgen import Conflict, FRONTLINE_LENGTH
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if TYPE_CHECKING:
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from gen.ato import Package
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from game.coalition import Coalition
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from game.transfers import Convoy
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INGRESS_TYPES = {
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FlightWaypointType.INGRESS_CAS,
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FlightWaypointType.INGRESS_ESCORT,
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FlightWaypointType.INGRESS_SEAD,
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FlightWaypointType.INGRESS_STRIKE,
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FlightWaypointType.INGRESS_DEAD,
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}
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class PlanningError(RuntimeError):
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"""Raised when the flight planner was unable to create a flight plan."""
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class InvalidObjectiveLocation(PlanningError):
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"""Raised when the objective location is invalid for the mission type."""
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def __init__(self, task: FlightType, location: MissionTarget) -> None:
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super().__init__(f"{location.name} is not valid for {task} missions.")
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@dataclass(frozen=True)
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class FlightPlan:
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package: Package
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flight: Flight
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@property
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def waypoints(self) -> List[FlightWaypoint]:
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"""A list of all waypoints in the flight plan, in order."""
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return list(self.iter_waypoints())
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def iter_waypoints(self) -> Iterator[FlightWaypoint]:
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"""Iterates over all waypoints in the flight plan, in order."""
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raise NotImplementedError
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def edges(
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self, until: Optional[FlightWaypoint] = None
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) -> Iterator[Tuple[FlightWaypoint, FlightWaypoint]]:
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"""A list of all paths between waypoints, in order."""
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waypoints = self.waypoints
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if until is None:
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last_index = len(waypoints)
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else:
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last_index = waypoints.index(until) + 1
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return zip(self.waypoints[:last_index], self.waypoints[1:last_index])
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def best_speed_between_waypoints(
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self, a: FlightWaypoint, b: FlightWaypoint
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) -> Speed:
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"""Desired ground speed between points a and b."""
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factor = 1.0
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if b.waypoint_type == FlightWaypointType.ASCEND_POINT:
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# Flights that start airborne already have some altitude and a good
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# amount of speed.
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factor = 0.5
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elif b.waypoint_type == FlightWaypointType.LOITER:
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# On the way to the hold point the AI won't climb unless they're in
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# formation, so slowing down the flight lead gives them more time to
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# form up and climb.
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# https://forums.eagle.ru/forum/english/digital-combat-simulator/dcs-world-2-5/dcs-wishlist-aa/7121300-ai-flights-will-not-climb-to-hold-point-because-wingman-not-joined
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#
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# Plus, it's a loiter point so there's no reason to hurry.
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factor = 0.75
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# TODO: Adjust if AGL.
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# We don't have an exact heightmap, but we should probably be performing
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# *some* adjustment for NTTR since the minimum altitude of the map is
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# near 2000 ft MSL.
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return GroundSpeed.for_flight(self.flight, min(a.alt, b.alt)) * factor
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def speed_between_waypoints(self, a: FlightWaypoint, b: FlightWaypoint) -> Speed:
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return self.best_speed_between_waypoints(a, b)
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@property
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def tot_waypoint(self) -> Optional[FlightWaypoint]:
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"""The waypoint that is associated with the package TOT, or None.
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Note that the only flight plans that should have no target waypoints are
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user-planned missions without any useful waypoints and flight plans that
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failed to generate. Nevertheless, we have to defend against it.
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"""
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raise NotImplementedError
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@property
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def tot(self) -> timedelta:
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return self.package.time_over_target + self.tot_offset
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@cached_property
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def bingo_fuel(self) -> int:
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"""Bingo fuel value for the FlightPlan"""
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distance_to_arrival = self.max_distance_from(self.flight.arrival)
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bingo = 1000.0 # Minimum Emergency Fuel
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bingo += 500 # Visual Traffic
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bingo += 15 * distance_to_arrival.nautical_miles
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# TODO: Per aircraft tweaks.
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if self.flight.divert is not None:
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max_divert_distance = self.max_distance_from(self.flight.divert)
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bingo += 10 * max_divert_distance.nautical_miles
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return round(bingo / 100) * 100
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@cached_property
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def joker_fuel(self) -> int:
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"""Joker fuel value for the FlightPlan"""
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return self.bingo_fuel + 1000
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def max_distance_from(self, cp: ControlPoint) -> Distance:
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"""Returns the farthest waypoint of the flight plan from a ControlPoint.
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:arg cp The ControlPoint to measure distance from.
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"""
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if not self.waypoints:
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return meters(0)
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return max(
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[meters(cp.position.distance_to_point(w.position)) for w in self.waypoints]
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)
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@property
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def tot_offset(self) -> timedelta:
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"""This flight's offset from the package's TOT.
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Positive values represent later TOTs. An offset of -2 minutes is used
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for a flight that has a TOT 2 minutes before the rest of the package.
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"""
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return timedelta()
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def _travel_time_to_waypoint(self, destination: FlightWaypoint) -> timedelta:
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total = timedelta()
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if destination not in self.waypoints:
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raise PlanningError(
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f"Did not find destination waypoint {destination} in "
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f"waypoints for {self.flight}"
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)
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for previous_waypoint, waypoint in self.edges(until=destination):
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total += self.travel_time_between_waypoints(previous_waypoint, waypoint)
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return total
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def travel_time_between_waypoints(
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self, a: FlightWaypoint, b: FlightWaypoint
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) -> timedelta:
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return TravelTime.between_points(
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a.position, b.position, self.speed_between_waypoints(a, b)
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)
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def tot_for_waypoint(self, waypoint: FlightWaypoint) -> Optional[timedelta]:
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raise NotImplementedError
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def depart_time_for_waypoint(self, waypoint: FlightWaypoint) -> Optional[timedelta]:
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raise NotImplementedError
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def request_escort_at(self) -> Optional[FlightWaypoint]:
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return None
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def dismiss_escort_at(self) -> Optional[FlightWaypoint]:
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return None
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def escorted_waypoints(self) -> Iterator[FlightWaypoint]:
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begin = self.request_escort_at()
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end = self.dismiss_escort_at()
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if begin is None or end is None:
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return
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escorting = False
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for waypoint in self.waypoints:
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if waypoint == begin:
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escorting = True
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if escorting:
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yield waypoint
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if waypoint == end:
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return
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def takeoff_time(self) -> Optional[timedelta]:
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tot_waypoint = self.tot_waypoint
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if tot_waypoint is None:
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return None
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return self.tot - self._travel_time_to_waypoint(tot_waypoint)
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def startup_time(self) -> Optional[timedelta]:
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takeoff_time = self.takeoff_time()
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if takeoff_time is None:
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return None
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start_time = takeoff_time - self.estimate_startup() - self.estimate_ground_ops()
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# In case FP math has given us some barely below zero time, round to
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# zero.
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if math.isclose(start_time.total_seconds(), 0):
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return timedelta()
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# Trim microseconds. DCS doesn't handle sub-second resolution for tasks,
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# and they're not interesting from a mission planning perspective so we
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# don't want them in the UI.
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#
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# Round down so *barely* above zero start times are just zero.
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return timedelta(seconds=math.floor(start_time.total_seconds()))
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def estimate_startup(self) -> timedelta:
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if self.flight.start_type == "Cold":
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if self.flight.client_count:
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return timedelta(minutes=10)
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else:
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# The AI doesn't seem to have a real startup procedure.
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return timedelta(minutes=2)
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return timedelta()
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def estimate_ground_ops(self) -> timedelta:
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if self.flight.start_type in ("Runway", "In Flight"):
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return timedelta()
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if self.flight.from_cp.is_fleet:
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return timedelta(minutes=2)
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else:
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return timedelta(minutes=8)
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@property
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def mission_departure_time(self) -> timedelta:
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"""The time that the mission is complete and the flight RTBs."""
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raise NotImplementedError
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@dataclass(frozen=True)
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class LoiterFlightPlan(FlightPlan):
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hold: FlightWaypoint
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hold_duration: timedelta
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def iter_waypoints(self) -> Iterator[FlightWaypoint]:
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raise NotImplementedError
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@property
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def tot_waypoint(self) -> Optional[FlightWaypoint]:
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raise NotImplementedError
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def tot_for_waypoint(self, waypoint: FlightWaypoint) -> Optional[timedelta]:
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raise NotImplementedError
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@property
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def push_time(self) -> timedelta:
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raise NotImplementedError
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def depart_time_for_waypoint(self, waypoint: FlightWaypoint) -> Optional[timedelta]:
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if waypoint == self.hold:
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return self.push_time
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return None
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def travel_time_between_waypoints(
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self, a: FlightWaypoint, b: FlightWaypoint
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) -> timedelta:
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travel_time = super().travel_time_between_waypoints(a, b)
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if a != self.hold:
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return travel_time
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return travel_time + self.hold_duration
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@property
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def mission_departure_time(self) -> timedelta:
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raise NotImplementedError
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@dataclass(frozen=True)
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class FormationFlightPlan(LoiterFlightPlan):
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join: FlightWaypoint
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split: FlightWaypoint
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def iter_waypoints(self) -> Iterator[FlightWaypoint]:
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raise NotImplementedError
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@property
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def package_speed_waypoints(self) -> Set[FlightWaypoint]:
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raise NotImplementedError
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@property
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def tot_waypoint(self) -> Optional[FlightWaypoint]:
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raise NotImplementedError
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def request_escort_at(self) -> Optional[FlightWaypoint]:
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return self.join
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def dismiss_escort_at(self) -> Optional[FlightWaypoint]:
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return self.split
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@cached_property
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def best_flight_formation_speed(self) -> Speed:
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"""The best speed this flight is capable at all formation waypoints.
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To ease coordination with other flights, we aim to have a single mission
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speed used by the formation for all waypoints. As such, this function
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returns the highest ground speed that the flight is capable of flying at
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all of its formation waypoints.
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"""
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speeds = []
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for previous_waypoint, waypoint in self.edges():
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if waypoint in self.package_speed_waypoints:
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speeds.append(
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self.best_speed_between_waypoints(previous_waypoint, waypoint)
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)
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return min(speeds)
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def speed_between_waypoints(self, a: FlightWaypoint, b: FlightWaypoint) -> Speed:
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if b in self.package_speed_waypoints:
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# Should be impossible, as any package with at least one
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# FormationFlightPlan flight needs a formation speed.
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assert self.package.formation_speed is not None
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return self.package.formation_speed
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return super().speed_between_waypoints(a, b)
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@property
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def travel_time_to_rendezvous(self) -> timedelta:
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"""The estimated time between the first waypoint and the join point."""
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return self._travel_time_to_waypoint(self.join)
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@property
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def join_time(self) -> timedelta:
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raise NotImplementedError
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@property
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def split_time(self) -> timedelta:
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raise NotImplementedError
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def tot_for_waypoint(self, waypoint: FlightWaypoint) -> Optional[timedelta]:
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if waypoint == self.join:
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return self.join_time
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elif waypoint == self.split:
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return self.split_time
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return None
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@property
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def push_time(self) -> timedelta:
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return self.join_time - TravelTime.between_points(
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self.hold.position,
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self.join.position,
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GroundSpeed.for_flight(self.flight, self.hold.alt),
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)
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@property
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def mission_departure_time(self) -> timedelta:
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return self.split_time
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@dataclass(frozen=True)
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class PatrollingFlightPlan(FlightPlan):
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nav_to: List[FlightWaypoint]
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nav_from: List[FlightWaypoint]
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patrol_start: FlightWaypoint
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patrol_end: FlightWaypoint
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#: Maximum time to remain on station.
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patrol_duration: timedelta
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#: The engagement range of any Search Then Engage task, or the radius of a
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#: Search Then Engage in Zone task. Any enemies of the appropriate type for
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#: this mission within this range of the flight's current position (or the
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#: center of the zone) will be engaged by the flight.
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engagement_distance: Distance
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@property
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def patrol_start_time(self) -> timedelta:
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return self.package.time_over_target
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@property
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def patrol_end_time(self) -> timedelta:
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# TODO: This is currently wrong for CAS.
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# CAS missions end when they're winchester or bingo. We need to
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# configure push tasks for the escorts rather than relying on timing.
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return self.patrol_start_time + self.patrol_duration
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def tot_for_waypoint(self, waypoint: FlightWaypoint) -> Optional[timedelta]:
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if waypoint == self.patrol_start:
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return self.patrol_start_time
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return None
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def depart_time_for_waypoint(self, waypoint: FlightWaypoint) -> Optional[timedelta]:
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if waypoint == self.patrol_end:
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return self.patrol_end_time
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return None
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def iter_waypoints(self) -> Iterator[FlightWaypoint]:
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raise NotImplementedError
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|
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@property
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def package_speed_waypoints(self) -> Set[FlightWaypoint]:
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return {self.patrol_start, self.patrol_end}
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|
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@property
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def tot_waypoint(self) -> Optional[FlightWaypoint]:
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return self.patrol_start
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|
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@property
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def mission_departure_time(self) -> timedelta:
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return self.patrol_end_time
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|
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@dataclass(frozen=True)
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class BarCapFlightPlan(PatrollingFlightPlan):
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takeoff: FlightWaypoint
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land: FlightWaypoint
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divert: Optional[FlightWaypoint]
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bullseye: FlightWaypoint
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|
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def iter_waypoints(self) -> Iterator[FlightWaypoint]:
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yield self.takeoff
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yield from self.nav_to
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yield from [
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self.patrol_start,
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self.patrol_end,
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]
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yield from self.nav_from
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yield self.land
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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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|
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@dataclass(frozen=True)
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class CasFlightPlan(PatrollingFlightPlan):
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takeoff: FlightWaypoint
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target: FlightWaypoint
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land: FlightWaypoint
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divert: Optional[FlightWaypoint]
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bullseye: FlightWaypoint
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|
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def iter_waypoints(self) -> Iterator[FlightWaypoint]:
|
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yield self.takeoff
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yield from self.nav_to
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yield from [
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self.patrol_start,
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self.target,
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self.patrol_end,
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]
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yield from self.nav_from
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yield self.land
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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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|
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def request_escort_at(self) -> Optional[FlightWaypoint]:
|
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return self.patrol_start
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def dismiss_escort_at(self) -> Optional[FlightWaypoint]:
|
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return self.patrol_end
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|
|
|
|
@dataclass(frozen=True)
|
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class TarCapFlightPlan(PatrollingFlightPlan):
|
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takeoff: FlightWaypoint
|
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land: FlightWaypoint
|
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divert: Optional[FlightWaypoint]
|
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bullseye: FlightWaypoint
|
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lead_time: timedelta
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|
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def iter_waypoints(self) -> Iterator[FlightWaypoint]:
|
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yield self.takeoff
|
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yield from self.nav_to
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yield from [
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self.patrol_start,
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self.patrol_end,
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]
|
|
yield from self.nav_from
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yield self.land
|
|
if self.divert is not None:
|
|
yield self.divert
|
|
yield self.bullseye
|
|
|
|
@property
|
|
def tot_offset(self) -> timedelta:
|
|
return -self.lead_time
|
|
|
|
def depart_time_for_waypoint(self, waypoint: FlightWaypoint) -> Optional[timedelta]:
|
|
if waypoint == self.patrol_end:
|
|
return self.patrol_end_time
|
|
return super().depart_time_for_waypoint(waypoint)
|
|
|
|
@property
|
|
def patrol_start_time(self) -> timedelta:
|
|
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) -> timedelta:
|
|
end = self.package.escort_end_time
|
|
if end is not None:
|
|
return end
|
|
return super().patrol_end_time
|
|
|
|
|
|
@dataclass(frozen=True)
|
|
class StrikeFlightPlan(FormationFlightPlan):
|
|
takeoff: FlightWaypoint
|
|
hold: FlightWaypoint
|
|
nav_to: List[FlightWaypoint]
|
|
join: FlightWaypoint
|
|
ingress: FlightWaypoint
|
|
targets: List[FlightWaypoint]
|
|
split: FlightWaypoint
|
|
nav_from: List[FlightWaypoint]
|
|
land: FlightWaypoint
|
|
divert: Optional[FlightWaypoint]
|
|
bullseye: FlightWaypoint
|
|
lead_time: timedelta = field(default_factory=timedelta)
|
|
|
|
def iter_waypoints(self) -> Iterator[FlightWaypoint]:
|
|
yield self.takeoff
|
|
yield self.hold
|
|
yield from self.nav_to
|
|
yield self.join
|
|
yield self.ingress
|
|
yield from self.targets
|
|
yield self.split
|
|
yield from self.nav_from
|
|
yield self.land
|
|
if self.divert is not None:
|
|
yield self.divert
|
|
yield self.bullseye
|
|
|
|
@property
|
|
def package_speed_waypoints(self) -> Set[FlightWaypoint]:
|
|
return {
|
|
self.ingress,
|
|
self.split,
|
|
} | set(self.targets)
|
|
|
|
def speed_between_waypoints(self, a: FlightWaypoint, b: FlightWaypoint) -> Speed:
|
|
# FlightWaypoint is only comparable by identity, so adding
|
|
# target_area_waypoint to package_speed_waypoints is useless.
|
|
if b.waypoint_type == FlightWaypointType.TARGET_GROUP_LOC:
|
|
# Should be impossible, as any package with at least one
|
|
# FormationFlightPlan flight needs a formation speed.
|
|
assert self.package.formation_speed is not None
|
|
return self.package.formation_speed
|
|
return super().speed_between_waypoints(a, b)
|
|
|
|
@property
|
|
def tot_waypoint(self) -> FlightWaypoint:
|
|
return self.targets[0]
|
|
|
|
@property
|
|
def tot_offset(self) -> timedelta:
|
|
try:
|
|
return -self.lead_time
|
|
except AttributeError:
|
|
return timedelta()
|
|
|
|
@property
|
|
def target_area_waypoint(self) -> FlightWaypoint:
|
|
return FlightWaypoint(
|
|
FlightWaypointType.TARGET_GROUP_LOC,
|
|
self.package.target.position.x,
|
|
self.package.target.position.y,
|
|
meters(0),
|
|
)
|
|
|
|
@property
|
|
def travel_time_to_target(self) -> timedelta:
|
|
"""The estimated time between the first waypoint and the target."""
|
|
destination = self.tot_waypoint
|
|
total = timedelta()
|
|
for previous_waypoint, waypoint in self.edges():
|
|
if waypoint == self.tot_waypoint:
|
|
# For anything strike-like the TOT waypoint is the *flight's*
|
|
# mission target, but to synchronize with the rest of the
|
|
# package we need to use the travel time to the same position as
|
|
# the others.
|
|
total += self.travel_time_between_waypoints(
|
|
previous_waypoint, self.target_area_waypoint
|
|
)
|
|
break
|
|
total += self.travel_time_between_waypoints(previous_waypoint, waypoint)
|
|
else:
|
|
raise PlanningError(
|
|
f"Did not find destination waypoint {destination} in "
|
|
f"waypoints for {self.flight}"
|
|
)
|
|
return total
|
|
|
|
@property
|
|
def join_time(self) -> timedelta:
|
|
travel_time = self.travel_time_between_waypoints(self.join, self.ingress)
|
|
return self.ingress_time - travel_time
|
|
|
|
@property
|
|
def split_time(self) -> timedelta:
|
|
travel_time = self.travel_time_between_waypoints(self.ingress, self.split)
|
|
return self.ingress_time + travel_time
|
|
|
|
@property
|
|
def ingress_time(self) -> timedelta:
|
|
tot = self.tot
|
|
travel_time = self.travel_time_between_waypoints(
|
|
self.ingress, self.target_area_waypoint
|
|
)
|
|
return tot - travel_time
|
|
|
|
def tot_for_waypoint(self, waypoint: FlightWaypoint) -> Optional[timedelta]:
|
|
if waypoint == self.ingress:
|
|
return self.ingress_time
|
|
elif waypoint in self.targets:
|
|
return self.tot
|
|
return super().tot_for_waypoint(waypoint)
|
|
|
|
|
|
@dataclass(frozen=True)
|
|
class SweepFlightPlan(LoiterFlightPlan):
|
|
takeoff: FlightWaypoint
|
|
nav_to: List[FlightWaypoint]
|
|
sweep_start: FlightWaypoint
|
|
sweep_end: FlightWaypoint
|
|
nav_from: List[FlightWaypoint]
|
|
land: FlightWaypoint
|
|
divert: Optional[FlightWaypoint]
|
|
bullseye: FlightWaypoint
|
|
lead_time: timedelta
|
|
|
|
def iter_waypoints(self) -> Iterator[FlightWaypoint]:
|
|
yield self.takeoff
|
|
yield self.hold
|
|
yield from self.nav_to
|
|
yield self.sweep_start
|
|
yield self.sweep_end
|
|
yield from self.nav_from
|
|
yield self.land
|
|
if self.divert is not None:
|
|
yield self.divert
|
|
yield self.bullseye
|
|
|
|
@property
|
|
def tot_waypoint(self) -> Optional[FlightWaypoint]:
|
|
return self.sweep_end
|
|
|
|
@property
|
|
def tot_offset(self) -> timedelta:
|
|
return -self.lead_time
|
|
|
|
@property
|
|
def sweep_start_time(self) -> timedelta:
|
|
travel_time = self.travel_time_between_waypoints(
|
|
self.sweep_start, self.sweep_end
|
|
)
|
|
return self.sweep_end_time - travel_time
|
|
|
|
@property
|
|
def sweep_end_time(self) -> timedelta:
|
|
return self.tot
|
|
|
|
def tot_for_waypoint(self, waypoint: FlightWaypoint) -> Optional[timedelta]:
|
|
if waypoint == self.sweep_start:
|
|
return self.sweep_start_time
|
|
if waypoint == self.sweep_end:
|
|
return self.sweep_end_time
|
|
return None
|
|
|
|
def depart_time_for_waypoint(self, waypoint: FlightWaypoint) -> Optional[timedelta]:
|
|
if waypoint == self.hold:
|
|
return self.push_time
|
|
return None
|
|
|
|
@property
|
|
def push_time(self) -> timedelta:
|
|
return self.sweep_end_time - TravelTime.between_points(
|
|
self.hold.position,
|
|
self.sweep_end.position,
|
|
GroundSpeed.for_flight(self.flight, self.hold.alt),
|
|
)
|
|
|
|
def mission_departure_time(self) -> timedelta:
|
|
return self.sweep_end_time
|
|
|
|
|
|
@dataclass(frozen=True)
|
|
class AwacsFlightPlan(LoiterFlightPlan):
|
|
takeoff: FlightWaypoint
|
|
nav_to: List[FlightWaypoint]
|
|
nav_from: List[FlightWaypoint]
|
|
land: FlightWaypoint
|
|
divert: Optional[FlightWaypoint]
|
|
bullseye: FlightWaypoint
|
|
|
|
def iter_waypoints(self) -> Iterator[FlightWaypoint]:
|
|
yield self.takeoff
|
|
yield from self.nav_to
|
|
yield self.hold
|
|
yield from self.nav_from
|
|
yield self.land
|
|
if self.divert is not None:
|
|
yield self.divert
|
|
yield self.bullseye
|
|
|
|
@property
|
|
def mission_start_time(self) -> Optional[timedelta]:
|
|
return self.takeoff_time()
|
|
|
|
def tot_for_waypoint(self, waypoint: FlightWaypoint) -> Optional[timedelta]:
|
|
if waypoint == self.hold:
|
|
return self.package.time_over_target
|
|
return None
|
|
|
|
@property
|
|
def tot_waypoint(self) -> Optional[FlightWaypoint]:
|
|
return self.hold
|
|
|
|
@property
|
|
def push_time(self) -> timedelta:
|
|
return self.package.time_over_target + self.hold_duration
|
|
|
|
@property
|
|
def mission_departure_time(self) -> timedelta:
|
|
return self.push_time
|
|
|
|
|
|
@dataclass(frozen=True)
|
|
class RefuelingFlightPlan(PatrollingFlightPlan):
|
|
takeoff: FlightWaypoint
|
|
land: FlightWaypoint
|
|
divert: Optional[FlightWaypoint]
|
|
bullseye: FlightWaypoint
|
|
|
|
#: Racetrack speed.
|
|
patrol_speed: Speed
|
|
|
|
def iter_waypoints(self) -> Iterator[FlightWaypoint]:
|
|
yield self.takeoff
|
|
yield from self.nav_to
|
|
yield self.patrol_start
|
|
yield self.patrol_end
|
|
yield from self.nav_from
|
|
yield self.land
|
|
if self.divert is not None:
|
|
yield self.divert
|
|
yield self.bullseye
|
|
|
|
|
|
@dataclass(frozen=True)
|
|
class AirliftFlightPlan(FlightPlan):
|
|
takeoff: FlightWaypoint
|
|
nav_to_pickup: List[FlightWaypoint]
|
|
pickup: Optional[FlightWaypoint]
|
|
nav_to_drop_off: List[FlightWaypoint]
|
|
drop_off: FlightWaypoint
|
|
nav_to_home: List[FlightWaypoint]
|
|
land: FlightWaypoint
|
|
divert: Optional[FlightWaypoint]
|
|
bullseye: FlightWaypoint
|
|
|
|
def iter_waypoints(self) -> Iterator[FlightWaypoint]:
|
|
yield self.takeoff
|
|
yield from self.nav_to_pickup
|
|
if self.pickup:
|
|
yield self.pickup
|
|
yield from self.nav_to_drop_off
|
|
yield self.drop_off
|
|
yield from self.nav_to_home
|
|
yield self.land
|
|
if self.divert is not None:
|
|
yield self.divert
|
|
yield self.bullseye
|
|
|
|
@property
|
|
def tot_waypoint(self) -> Optional[FlightWaypoint]:
|
|
return self.drop_off
|
|
|
|
def tot_for_waypoint(self, waypoint: FlightWaypoint) -> Optional[timedelta]:
|
|
# TOT planning isn't really useful for transports. They're behind the front
|
|
# lines so no need to wait for escorts or for other missions to complete.
|
|
return None
|
|
|
|
def depart_time_for_waypoint(self, waypoint: FlightWaypoint) -> Optional[timedelta]:
|
|
return None
|
|
|
|
@property
|
|
def mission_departure_time(self) -> timedelta:
|
|
return self.package.time_over_target
|
|
|
|
|
|
@dataclass(frozen=True)
|
|
class CustomFlightPlan(FlightPlan):
|
|
custom_waypoints: List[FlightWaypoint]
|
|
|
|
def iter_waypoints(self) -> Iterator[FlightWaypoint]:
|
|
yield from self.custom_waypoints
|
|
|
|
@property
|
|
def tot_waypoint(self) -> Optional[FlightWaypoint]:
|
|
target_types = (
|
|
FlightWaypointType.PATROL_TRACK,
|
|
FlightWaypointType.TARGET_GROUP_LOC,
|
|
FlightWaypointType.TARGET_POINT,
|
|
FlightWaypointType.TARGET_SHIP,
|
|
)
|
|
for waypoint in self.waypoints:
|
|
if waypoint in target_types:
|
|
return waypoint
|
|
return None
|
|
|
|
def tot_for_waypoint(self, waypoint: FlightWaypoint) -> Optional[timedelta]:
|
|
if waypoint == self.tot_waypoint:
|
|
return self.package.time_over_target
|
|
return None
|
|
|
|
def depart_time_for_waypoint(self, waypoint: FlightWaypoint) -> Optional[timedelta]:
|
|
return None
|
|
|
|
@property
|
|
def mission_departure_time(self) -> timedelta:
|
|
return self.package.time_over_target
|
|
|
|
|
|
class FlightPlanBuilder:
|
|
"""Generates flight plans for flights."""
|
|
|
|
def __init__(
|
|
self, package: Package, coalition: Coalition, theater: ConflictTheater
|
|
) -> None:
|
|
# TODO: Plan similar altitudes for the in-country leg of the mission.
|
|
# Waypoint altitudes for a given flight *shouldn't* differ too much
|
|
# between the join and split points, so we don't need speeds for each
|
|
# leg individually since they should all be fairly similar. This doesn't
|
|
# hold too well right now since nothing is stopping each waypoint from
|
|
# jumping 20k feet each time, but that's a huge waste of energy we
|
|
# should be avoiding anyway.
|
|
self.package = package
|
|
self.coalition = coalition
|
|
self.theater = theater
|
|
|
|
@property
|
|
def is_player(self) -> bool:
|
|
return self.coalition.player
|
|
|
|
@property
|
|
def doctrine(self) -> Doctrine:
|
|
return self.coalition.doctrine
|
|
|
|
@property
|
|
def threat_zones(self) -> ThreatZones:
|
|
return self.coalition.opponent.threat_zone
|
|
|
|
def populate_flight_plan(
|
|
self,
|
|
flight: Flight,
|
|
# TODO: Custom targets should be an attribute of the flight.
|
|
custom_targets: Optional[List[Unit]] = None,
|
|
) -> None:
|
|
"""Creates a default flight plan for the given mission."""
|
|
if flight not in self.package.flights:
|
|
raise RuntimeError("Flight must be a part of the package")
|
|
|
|
from game.navmesh import NavMeshError
|
|
|
|
try:
|
|
if self.package.waypoints is None:
|
|
self.regenerate_package_waypoints()
|
|
flight.flight_plan = self.generate_flight_plan(flight, custom_targets)
|
|
except NavMeshError as ex:
|
|
color = "blue" if self.is_player else "red"
|
|
raise PlanningError(
|
|
f"Could not plan {color} {flight.flight_type.value} from "
|
|
f"{flight.departure} to {flight.package.target}"
|
|
) from ex
|
|
|
|
def generate_flight_plan(
|
|
self, flight: Flight, custom_targets: Optional[List[Unit]]
|
|
) -> FlightPlan:
|
|
# TODO: Flesh out mission types.
|
|
task = flight.flight_type
|
|
if task == FlightType.ANTISHIP:
|
|
return self.generate_anti_ship(flight)
|
|
elif task == FlightType.BAI:
|
|
return self.generate_bai(flight)
|
|
elif task == FlightType.BARCAP:
|
|
return self.generate_barcap(flight)
|
|
elif task == FlightType.CAS:
|
|
return self.generate_cas(flight)
|
|
elif task == FlightType.DEAD:
|
|
return self.generate_dead(flight, custom_targets)
|
|
elif task == FlightType.ESCORT:
|
|
return self.generate_escort(flight)
|
|
elif task == FlightType.OCA_AIRCRAFT:
|
|
return self.generate_oca_strike(flight)
|
|
elif task == FlightType.OCA_RUNWAY:
|
|
return self.generate_runway_attack(flight)
|
|
elif task == FlightType.SEAD:
|
|
return self.generate_sead(flight, custom_targets)
|
|
elif task == FlightType.SEAD_ESCORT:
|
|
return self.generate_escort(flight)
|
|
elif task == FlightType.STRIKE:
|
|
return self.generate_strike(flight)
|
|
elif task == FlightType.SWEEP:
|
|
return self.generate_sweep(flight)
|
|
elif task == FlightType.TARCAP:
|
|
return self.generate_tarcap(flight)
|
|
elif task == FlightType.AEWC:
|
|
return self.generate_aewc(flight)
|
|
elif task == FlightType.TRANSPORT:
|
|
return self.generate_transport(flight)
|
|
elif task == FlightType.REFUELING:
|
|
return self.generate_refueling_racetrack(flight)
|
|
raise PlanningError(f"{task} flight plan generation not implemented")
|
|
|
|
def regenerate_package_waypoints(self) -> None:
|
|
from gen.ato import PackageWaypoints
|
|
|
|
# Start by picking the best IP for the attack.
|
|
ingress_point = IpZoneGeometry(
|
|
self.package.target.position,
|
|
self.package_airfield().position,
|
|
self.coalition,
|
|
).find_best_ip()
|
|
|
|
# Pick the join point based on the best route to the IP.
|
|
join_point = self.preferred_join_point(ingress_point)
|
|
if join_point is None:
|
|
# The entire path to the target is threatened. Use the fallback behavior for
|
|
# now.
|
|
self.legacy_package_waypoints_impl(ingress_point)
|
|
return
|
|
|
|
# And the split point based on the best route from the IP. Since that's no
|
|
# different than the best route *to* the IP, this is the same as the join point.
|
|
# TODO: Estimate attack completion point based on the IP and split from there?
|
|
self.package.waypoints = PackageWaypoints(
|
|
WaypointBuilder.perturb(join_point),
|
|
ingress_point,
|
|
WaypointBuilder.perturb(join_point),
|
|
)
|
|
|
|
def legacy_package_waypoints_impl(self, ingress_point: Point) -> None:
|
|
from gen.ato import PackageWaypoints
|
|
|
|
join_point = self._rendezvous_point(ingress_point)
|
|
self.package.waypoints = PackageWaypoints(
|
|
WaypointBuilder.perturb(join_point),
|
|
ingress_point,
|
|
WaypointBuilder.perturb(join_point),
|
|
)
|
|
|
|
def safe_points_between(self, a: Point, b: Point) -> Iterator[Point]:
|
|
for point in self.coalition.nav_mesh.shortest_path(a, b)[1:-1]:
|
|
if not self.threat_zones.threatened(point):
|
|
yield point
|
|
|
|
def preferred_join_point(self, ingress_point: Point) -> Optional[Point]:
|
|
# Use non-threatened points along the path to the target as the join point. We
|
|
# may need to try more than one in the event that the close non-threatened
|
|
# points are closer than the ingress point itself.
|
|
for join_point in self.safe_points_between(
|
|
ingress_point, self.package_airfield().position
|
|
):
|
|
return join_point
|
|
return None
|
|
|
|
def generate_strike(self, flight: Flight) -> StrikeFlightPlan:
|
|
"""Generates a strike flight plan.
|
|
|
|
Args:
|
|
flight: The flight to generate the flight plan for.
|
|
"""
|
|
location = self.package.target
|
|
|
|
# TODO: Support airfield strikes.
|
|
if not isinstance(location, TheaterGroundObject):
|
|
raise InvalidObjectiveLocation(flight.flight_type, location)
|
|
|
|
targets: List[StrikeTarget] = []
|
|
if isinstance(location, BuildingGroundObject):
|
|
# A building "group" is implemented as multiple TGOs with the same name.
|
|
for building in location.strike_targets:
|
|
targets.append(StrikeTarget(building.category, building))
|
|
else:
|
|
# TODO: Replace with DEAD?
|
|
# Strike missions on SEAD targets target units.
|
|
for g in location.groups:
|
|
for j, u in enumerate(g.units):
|
|
targets.append(StrikeTarget(f"{u.type} #{j}", u))
|
|
|
|
return self.strike_flightplan(
|
|
flight, location, FlightWaypointType.INGRESS_STRIKE, targets
|
|
)
|
|
|
|
def generate_aewc(self, flight: Flight) -> AwacsFlightPlan:
|
|
"""Generate a AWACS flight at a given location.
|
|
|
|
Args:
|
|
flight: The flight to generate the flight plan for.
|
|
"""
|
|
location = self.package.target
|
|
|
|
orbit_location = self.aewc_orbit(location)
|
|
|
|
if flight.unit_type.patrol_altitude is not None:
|
|
patrol_alt = flight.unit_type.patrol_altitude
|
|
else:
|
|
patrol_alt = feet(25000)
|
|
|
|
builder = WaypointBuilder(flight, self.coalition)
|
|
orbit = builder.orbit(orbit_location, patrol_alt)
|
|
|
|
return AwacsFlightPlan(
|
|
package=self.package,
|
|
flight=flight,
|
|
takeoff=builder.takeoff(flight.departure),
|
|
nav_to=builder.nav_path(
|
|
flight.departure.position, orbit.position, patrol_alt
|
|
),
|
|
nav_from=builder.nav_path(
|
|
orbit.position, flight.arrival.position, patrol_alt
|
|
),
|
|
land=builder.land(flight.arrival),
|
|
divert=builder.divert(flight.divert),
|
|
bullseye=builder.bullseye(),
|
|
hold=orbit,
|
|
hold_duration=timedelta(hours=4),
|
|
)
|
|
|
|
def generate_bai(self, flight: Flight) -> FlightPlan:
|
|
"""Generates a BAI flight plan.
|
|
|
|
Args:
|
|
flight: The flight to generate the flight plan for.
|
|
"""
|
|
location = self.package.target
|
|
|
|
from game.transfers import Convoy
|
|
|
|
targets: List[StrikeTarget] = []
|
|
if isinstance(location, TheaterGroundObject):
|
|
for group in location.groups:
|
|
if group.units:
|
|
targets.append(
|
|
StrikeTarget(f"{group.name} at {location.name}", group)
|
|
)
|
|
elif isinstance(location, Convoy):
|
|
targets.append(StrikeTarget(location.name, location))
|
|
else:
|
|
raise InvalidObjectiveLocation(flight.flight_type, location)
|
|
|
|
return self.strike_flightplan(
|
|
flight, location, FlightWaypointType.INGRESS_BAI, targets
|
|
)
|
|
|
|
@staticmethod
|
|
def anti_ship_targets_for_tgo(tgo: NavalGroundObject) -> List[StrikeTarget]:
|
|
return [StrikeTarget(f"{g.name} at {tgo.name}", g) for g in tgo.groups]
|
|
|
|
def generate_anti_ship(self, flight: Flight) -> StrikeFlightPlan:
|
|
"""Generates an anti-ship flight plan.
|
|
|
|
Args:
|
|
flight: The flight to generate the flight plan for.
|
|
"""
|
|
location = self.package.target
|
|
|
|
from game.transfers import CargoShip
|
|
|
|
if isinstance(location, NavalControlPoint):
|
|
targets = self.anti_ship_targets_for_tgo(location.find_main_tgo())
|
|
elif isinstance(location, NavalGroundObject):
|
|
targets = self.anti_ship_targets_for_tgo(location)
|
|
elif isinstance(location, CargoShip):
|
|
targets = [StrikeTarget(location.name, location)]
|
|
else:
|
|
raise InvalidObjectiveLocation(flight.flight_type, location)
|
|
|
|
return self.strike_flightplan(
|
|
flight, location, FlightWaypointType.INGRESS_BAI, targets
|
|
)
|
|
|
|
def generate_barcap(self, flight: Flight) -> BarCapFlightPlan:
|
|
"""Generate a BARCAP flight at a given location.
|
|
|
|
Args:
|
|
flight: The flight to generate the flight plan for.
|
|
"""
|
|
location = self.package.target
|
|
|
|
if isinstance(location, FrontLine):
|
|
raise InvalidObjectiveLocation(flight.flight_type, location)
|
|
|
|
start_pos, end_pos = self.racetrack_for_objective(location, barcap=True)
|
|
patrol_alt = meters(
|
|
random.randint(
|
|
int(self.doctrine.min_patrol_altitude.meters),
|
|
int(self.doctrine.max_patrol_altitude.meters),
|
|
)
|
|
)
|
|
|
|
builder = WaypointBuilder(flight, self.coalition)
|
|
start, end = builder.race_track(start_pos, end_pos, patrol_alt)
|
|
|
|
return BarCapFlightPlan(
|
|
package=self.package,
|
|
flight=flight,
|
|
patrol_duration=self.doctrine.cap_duration,
|
|
engagement_distance=self.doctrine.cap_engagement_range,
|
|
takeoff=builder.takeoff(flight.departure),
|
|
nav_to=builder.nav_path(
|
|
flight.departure.position, start.position, patrol_alt
|
|
),
|
|
nav_from=builder.nav_path(
|
|
end.position, flight.arrival.position, patrol_alt
|
|
),
|
|
patrol_start=start,
|
|
patrol_end=end,
|
|
land=builder.land(flight.arrival),
|
|
divert=builder.divert(flight.divert),
|
|
bullseye=builder.bullseye(),
|
|
)
|
|
|
|
def generate_sweep(self, flight: Flight) -> SweepFlightPlan:
|
|
"""Generate a BARCAP flight at a given location.
|
|
|
|
Args:
|
|
flight: The flight to generate the flight plan for.
|
|
"""
|
|
assert self.package.waypoints is not None
|
|
target = self.package.target.position
|
|
|
|
heading = self.package.waypoints.join.heading_between_point(target)
|
|
start_pos = target.point_from_heading(
|
|
heading, -self.doctrine.sweep_distance.meters
|
|
)
|
|
|
|
builder = WaypointBuilder(flight, self.coalition)
|
|
start, end = builder.sweep(start_pos, target, self.doctrine.ingress_altitude)
|
|
|
|
hold = builder.hold(self._hold_point(flight))
|
|
|
|
return SweepFlightPlan(
|
|
package=self.package,
|
|
flight=flight,
|
|
lead_time=timedelta(minutes=5),
|
|
takeoff=builder.takeoff(flight.departure),
|
|
hold=hold,
|
|
hold_duration=timedelta(minutes=5),
|
|
nav_to=builder.nav_path(
|
|
hold.position, start.position, self.doctrine.ingress_altitude
|
|
),
|
|
nav_from=builder.nav_path(
|
|
end.position, flight.arrival.position, self.doctrine.ingress_altitude
|
|
),
|
|
sweep_start=start,
|
|
sweep_end=end,
|
|
land=builder.land(flight.arrival),
|
|
divert=builder.divert(flight.divert),
|
|
bullseye=builder.bullseye(),
|
|
)
|
|
|
|
def generate_transport(self, flight: Flight) -> AirliftFlightPlan:
|
|
"""Generate an airlift flight at a given location.
|
|
|
|
Args:
|
|
flight: The flight to generate the flight plan for.
|
|
"""
|
|
cargo = flight.cargo
|
|
if cargo is None:
|
|
raise PlanningError(
|
|
"Cannot plan transport mission for flight with no cargo."
|
|
)
|
|
|
|
altitude = feet(1500)
|
|
altitude_is_agl = True
|
|
|
|
builder = WaypointBuilder(flight, self.coalition)
|
|
|
|
pickup = None
|
|
nav_to_pickup = []
|
|
if cargo.origin != flight.departure:
|
|
pickup = builder.pickup(cargo.origin)
|
|
nav_to_pickup = builder.nav_path(
|
|
flight.departure.position,
|
|
cargo.origin.position,
|
|
altitude,
|
|
altitude_is_agl,
|
|
)
|
|
|
|
return AirliftFlightPlan(
|
|
package=self.package,
|
|
flight=flight,
|
|
takeoff=builder.takeoff(flight.departure),
|
|
nav_to_pickup=nav_to_pickup,
|
|
pickup=pickup,
|
|
nav_to_drop_off=builder.nav_path(
|
|
cargo.origin.position,
|
|
cargo.next_stop.position,
|
|
altitude,
|
|
altitude_is_agl,
|
|
),
|
|
drop_off=builder.drop_off(cargo.next_stop),
|
|
nav_to_home=builder.nav_path(
|
|
cargo.origin.position,
|
|
flight.arrival.position,
|
|
altitude,
|
|
altitude_is_agl,
|
|
),
|
|
land=builder.land(flight.arrival),
|
|
divert=builder.divert(flight.divert),
|
|
bullseye=builder.bullseye(),
|
|
)
|
|
|
|
def racetrack_for_objective(
|
|
self, location: MissionTarget, barcap: bool
|
|
) -> Tuple[Point, Point]:
|
|
closest_cache = ObjectiveDistanceCache.get_closest_airfields(location)
|
|
for airfield in closest_cache.operational_airfields:
|
|
# If the mission is a BARCAP of an enemy airfield, find the *next*
|
|
# closest enemy airfield.
|
|
if airfield == self.package.target:
|
|
continue
|
|
if airfield.captured != self.is_player:
|
|
closest_airfield = airfield
|
|
break
|
|
else:
|
|
raise PlanningError("Could not find any enemy airfields")
|
|
|
|
heading = location.position.heading_between_point(closest_airfield.position)
|
|
|
|
position = ShapelyPoint(
|
|
self.package.target.position.x, self.package.target.position.y
|
|
)
|
|
|
|
if barcap:
|
|
# BARCAPs should remain far enough back from the enemy that their
|
|
# commit range does not enter the enemy's threat zone. Include a 5nm
|
|
# buffer.
|
|
distance_to_no_fly = (
|
|
meters(position.distance(self.threat_zones.all))
|
|
- self.doctrine.cap_engagement_range
|
|
- nautical_miles(5)
|
|
)
|
|
else:
|
|
# Other race tracks (TARCAPs, currently) just try to keep some
|
|
# distance from the nearest enemy airbase, but since they are by
|
|
# definition in enemy territory they can't avoid the threat zone
|
|
# without being useless.
|
|
min_distance_from_enemy = nautical_miles(20)
|
|
distance_to_airfield = meters(
|
|
closest_airfield.position.distance_to_point(
|
|
self.package.target.position
|
|
)
|
|
)
|
|
distance_to_no_fly = distance_to_airfield - min_distance_from_enemy
|
|
|
|
min_cap_distance = min(
|
|
self.doctrine.cap_min_distance_from_cp, distance_to_no_fly
|
|
)
|
|
max_cap_distance = min(
|
|
self.doctrine.cap_max_distance_from_cp, distance_to_no_fly
|
|
)
|
|
|
|
end = location.position.point_from_heading(
|
|
heading,
|
|
random.randint(int(min_cap_distance.meters), int(max_cap_distance.meters)),
|
|
)
|
|
diameter = random.randint(
|
|
int(self.doctrine.cap_min_track_length.meters),
|
|
int(self.doctrine.cap_max_track_length.meters),
|
|
)
|
|
start = end.point_from_heading(heading - 180, diameter)
|
|
return start, end
|
|
|
|
def aewc_orbit(self, location: MissionTarget) -> Point:
|
|
closest_boundary = self.threat_zones.closest_boundary(location.position)
|
|
heading_to_threat_boundary = location.position.heading_between_point(
|
|
closest_boundary
|
|
)
|
|
distance_to_threat = meters(
|
|
location.position.distance_to_point(closest_boundary)
|
|
)
|
|
orbit_heading = heading_to_threat_boundary
|
|
# Station 100nm outside the threat zone.
|
|
threat_buffer = nautical_miles(100)
|
|
if self.threat_zones.threatened(location.position):
|
|
orbit_distance = distance_to_threat + threat_buffer
|
|
else:
|
|
orbit_distance = distance_to_threat - threat_buffer
|
|
|
|
return location.position.point_from_heading(
|
|
orbit_heading, orbit_distance.meters
|
|
)
|
|
|
|
def racetrack_for_frontline(
|
|
self, origin: Point, front_line: FrontLine
|
|
) -> Tuple[Point, Point]:
|
|
# Find targets waypoints
|
|
ingress, heading, distance = Conflict.frontline_vector(front_line, self.theater)
|
|
center = ingress.point_from_heading(heading, distance / 2)
|
|
orbit_center = center.point_from_heading(
|
|
heading - 90,
|
|
random.randint(
|
|
int(nautical_miles(6).meters), int(nautical_miles(15).meters)
|
|
),
|
|
)
|
|
|
|
combat_width = distance / 2
|
|
if combat_width > 500000:
|
|
combat_width = 500000
|
|
if combat_width < 35000:
|
|
combat_width = 35000
|
|
|
|
radius = combat_width * 1.25
|
|
start = orbit_center.point_from_heading(heading, radius)
|
|
end = orbit_center.point_from_heading(heading + 180, radius)
|
|
|
|
if end.distance_to_point(origin) < start.distance_to_point(origin):
|
|
start, end = end, start
|
|
return start, end
|
|
|
|
def generate_tarcap(self, flight: Flight) -> TarCapFlightPlan:
|
|
"""Generate a CAP flight plan for the given front line.
|
|
|
|
Args:
|
|
flight: The flight to generate the flight plan for.
|
|
"""
|
|
location = self.package.target
|
|
|
|
patrol_alt = meters(
|
|
random.randint(
|
|
int(self.doctrine.min_patrol_altitude.meters),
|
|
int(self.doctrine.max_patrol_altitude.meters),
|
|
)
|
|
)
|
|
|
|
# Create points
|
|
builder = WaypointBuilder(flight, self.coalition)
|
|
|
|
if isinstance(location, FrontLine):
|
|
orbit0p, orbit1p = self.racetrack_for_frontline(
|
|
flight.departure.position, location
|
|
)
|
|
else:
|
|
orbit0p, orbit1p = self.racetrack_for_objective(location, barcap=False)
|
|
|
|
start, end = builder.race_track(orbit0p, orbit1p, patrol_alt)
|
|
return TarCapFlightPlan(
|
|
package=self.package,
|
|
flight=flight,
|
|
lead_time=timedelta(minutes=2),
|
|
# 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 flight will remain on station for the
|
|
# duration of the escorted mission, or until it is winchester/bingo.
|
|
patrol_duration=self.doctrine.cap_duration,
|
|
engagement_distance=self.doctrine.cap_engagement_range,
|
|
takeoff=builder.takeoff(flight.departure),
|
|
nav_to=builder.nav_path(flight.departure.position, orbit0p, patrol_alt),
|
|
nav_from=builder.nav_path(orbit1p, flight.arrival.position, patrol_alt),
|
|
patrol_start=start,
|
|
patrol_end=end,
|
|
land=builder.land(flight.arrival),
|
|
divert=builder.divert(flight.divert),
|
|
bullseye=builder.bullseye(),
|
|
)
|
|
|
|
def generate_dead(
|
|
self, flight: Flight, custom_targets: Optional[List[Unit]]
|
|
) -> StrikeFlightPlan:
|
|
"""Generate a DEAD flight at a given location.
|
|
|
|
Args:
|
|
flight: The flight to generate the flight plan for.
|
|
custom_targets: Specific radar equipped units selected by the user.
|
|
"""
|
|
location = self.package.target
|
|
|
|
is_ewr = isinstance(location, EwrGroundObject)
|
|
is_sam = isinstance(location, SamGroundObject)
|
|
if not is_ewr and not is_sam:
|
|
logging.exception(
|
|
f"Invalid Objective Location for DEAD flight {flight=} at {location=}"
|
|
)
|
|
raise InvalidObjectiveLocation(flight.flight_type, location)
|
|
|
|
# TODO: Unify these.
|
|
# There doesn't seem to be any reason to treat the UI fragged missions
|
|
# different from the automatic missions.
|
|
targets: Optional[List[StrikeTarget]] = None
|
|
if custom_targets is not None:
|
|
targets = []
|
|
for target in custom_targets:
|
|
targets.append(StrikeTarget(location.name, target))
|
|
|
|
return self.strike_flightplan(
|
|
flight, location, FlightWaypointType.INGRESS_DEAD, targets
|
|
)
|
|
|
|
def generate_oca_strike(self, flight: Flight) -> StrikeFlightPlan:
|
|
"""Generate an OCA Strike flight plan at a given location.
|
|
|
|
Args:
|
|
flight: The flight to generate the flight plan for.
|
|
"""
|
|
location = self.package.target
|
|
|
|
if not isinstance(location, Airfield):
|
|
logging.exception(
|
|
f"Invalid Objective Location for OCA Strike flight "
|
|
f"{flight=} at {location=}."
|
|
)
|
|
raise InvalidObjectiveLocation(flight.flight_type, location)
|
|
|
|
return self.strike_flightplan(
|
|
flight, location, FlightWaypointType.INGRESS_OCA_AIRCRAFT
|
|
)
|
|
|
|
def generate_runway_attack(self, flight: Flight) -> StrikeFlightPlan:
|
|
"""Generate a runway attack flight plan at a given location.
|
|
|
|
Args:
|
|
flight: The flight to generate the flight plan for.
|
|
"""
|
|
location = self.package.target
|
|
|
|
if not isinstance(location, Airfield):
|
|
logging.exception(
|
|
f"Invalid Objective Location for runway bombing flight "
|
|
f"{flight=} at {location=}."
|
|
)
|
|
raise InvalidObjectiveLocation(flight.flight_type, location)
|
|
|
|
return self.strike_flightplan(
|
|
flight, location, FlightWaypointType.INGRESS_OCA_RUNWAY
|
|
)
|
|
|
|
def generate_sead(
|
|
self, flight: Flight, custom_targets: Optional[List[Unit]]
|
|
) -> StrikeFlightPlan:
|
|
"""Generate a SEAD flight at a given location.
|
|
|
|
Args:
|
|
flight: The flight to generate the flight plan for.
|
|
custom_targets: Specific radar equipped units selected by the user.
|
|
"""
|
|
location = self.package.target
|
|
|
|
# TODO: Unify these.
|
|
# There doesn't seem to be any reason to treat the UI fragged missions
|
|
# different from the automatic missions.
|
|
targets: Optional[List[StrikeTarget]] = None
|
|
if custom_targets is not None:
|
|
targets = []
|
|
for target in custom_targets:
|
|
targets.append(StrikeTarget(location.name, target))
|
|
|
|
return self.strike_flightplan(
|
|
flight,
|
|
location,
|
|
FlightWaypointType.INGRESS_SEAD,
|
|
targets,
|
|
lead_time=timedelta(minutes=1),
|
|
)
|
|
|
|
def generate_escort(self, flight: Flight) -> StrikeFlightPlan:
|
|
assert self.package.waypoints is not None
|
|
|
|
builder = WaypointBuilder(flight, self.coalition)
|
|
ingress, target = builder.escort(
|
|
self.package.waypoints.ingress, self.package.target
|
|
)
|
|
hold = builder.hold(self._hold_point(flight))
|
|
join = builder.join(self.package.waypoints.join)
|
|
split = builder.split(self.package.waypoints.split)
|
|
|
|
return StrikeFlightPlan(
|
|
package=self.package,
|
|
flight=flight,
|
|
takeoff=builder.takeoff(flight.departure),
|
|
hold=hold,
|
|
hold_duration=timedelta(minutes=5),
|
|
nav_to=builder.nav_path(
|
|
hold.position, join.position, self.doctrine.ingress_altitude
|
|
),
|
|
join=join,
|
|
ingress=ingress,
|
|
targets=[target],
|
|
split=split,
|
|
nav_from=builder.nav_path(
|
|
split.position, flight.arrival.position, self.doctrine.ingress_altitude
|
|
),
|
|
land=builder.land(flight.arrival),
|
|
divert=builder.divert(flight.divert),
|
|
bullseye=builder.bullseye(),
|
|
)
|
|
|
|
def generate_cas(self, flight: Flight) -> CasFlightPlan:
|
|
"""Generate a CAS flight plan for the given target.
|
|
|
|
Args:
|
|
flight: The flight to generate the flight plan for.
|
|
"""
|
|
location = self.package.target
|
|
|
|
if not isinstance(location, FrontLine):
|
|
raise InvalidObjectiveLocation(flight.flight_type, location)
|
|
|
|
ingress, heading, distance = Conflict.frontline_vector(location, self.theater)
|
|
center = ingress.point_from_heading(heading, distance / 2)
|
|
egress = ingress.point_from_heading(heading, distance)
|
|
|
|
ingress_distance = ingress.distance_to_point(flight.departure.position)
|
|
egress_distance = egress.distance_to_point(flight.departure.position)
|
|
if egress_distance < ingress_distance:
|
|
ingress, egress = egress, ingress
|
|
|
|
builder = WaypointBuilder(flight, self.coalition)
|
|
|
|
return CasFlightPlan(
|
|
package=self.package,
|
|
flight=flight,
|
|
patrol_duration=self.doctrine.cas_duration,
|
|
takeoff=builder.takeoff(flight.departure),
|
|
nav_to=builder.nav_path(
|
|
flight.departure.position, ingress, self.doctrine.ingress_altitude
|
|
),
|
|
nav_from=builder.nav_path(
|
|
egress, flight.arrival.position, self.doctrine.ingress_altitude
|
|
),
|
|
patrol_start=builder.ingress(
|
|
FlightWaypointType.INGRESS_CAS, ingress, location
|
|
),
|
|
engagement_distance=meters(FRONTLINE_LENGTH) / 2,
|
|
target=builder.cas(center),
|
|
patrol_end=builder.egress(egress, location),
|
|
land=builder.land(flight.arrival),
|
|
divert=builder.divert(flight.divert),
|
|
bullseye=builder.bullseye(),
|
|
)
|
|
|
|
def generate_refueling_racetrack(self, flight: Flight) -> RefuelingFlightPlan:
|
|
location = self.package.target
|
|
|
|
closest_boundary = self.threat_zones.closest_boundary(location.position)
|
|
heading_to_threat_boundary = location.position.heading_between_point(
|
|
closest_boundary
|
|
)
|
|
distance_to_threat = meters(
|
|
location.position.distance_to_point(closest_boundary)
|
|
)
|
|
orbit_heading = heading_to_threat_boundary
|
|
|
|
# Station 70nm outside the threat zone.
|
|
threat_buffer = nautical_miles(70)
|
|
if self.threat_zones.threatened(location.position):
|
|
orbit_distance = distance_to_threat + threat_buffer
|
|
else:
|
|
orbit_distance = distance_to_threat - threat_buffer
|
|
|
|
racetrack_center = location.position.point_from_heading(
|
|
orbit_heading, orbit_distance.meters
|
|
)
|
|
|
|
racetrack_half_distance = Distance.from_nautical_miles(20).meters
|
|
|
|
racetrack_start = racetrack_center.point_from_heading(
|
|
orbit_heading + 90, racetrack_half_distance
|
|
)
|
|
racetrack_end = racetrack_center.point_from_heading(
|
|
orbit_heading - 90, racetrack_half_distance
|
|
)
|
|
|
|
builder = WaypointBuilder(flight, self.coalition)
|
|
|
|
tanker_type = flight.unit_type
|
|
if tanker_type.patrol_altitude is not None:
|
|
altitude = tanker_type.patrol_altitude
|
|
else:
|
|
altitude = feet(21000)
|
|
|
|
if tanker_type.patrol_speed is not None:
|
|
speed = tanker_type.patrol_speed
|
|
else:
|
|
# ~280 knots IAS at 21000.
|
|
speed = knots(400)
|
|
|
|
racetrack = builder.race_track(racetrack_start, racetrack_end, altitude)
|
|
|
|
return RefuelingFlightPlan(
|
|
package=self.package,
|
|
flight=flight,
|
|
takeoff=builder.takeoff(flight.departure),
|
|
nav_to=builder.nav_path(
|
|
flight.departure.position, racetrack_start, altitude
|
|
),
|
|
nav_from=builder.nav_path(racetrack_end, flight.arrival.position, altitude),
|
|
patrol_start=racetrack[0],
|
|
patrol_end=racetrack[1],
|
|
land=builder.land(flight.arrival),
|
|
divert=builder.divert(flight.divert),
|
|
bullseye=builder.bullseye(),
|
|
patrol_duration=timedelta(hours=1),
|
|
patrol_speed=speed,
|
|
# TODO: Factor out a common base of the combat and non-combat race-tracks.
|
|
# No harm in setting this, but we ought to clean up a bit.
|
|
engagement_distance=meters(0),
|
|
)
|
|
|
|
@staticmethod
|
|
def target_waypoint(
|
|
flight: Flight, builder: WaypointBuilder, target: StrikeTarget
|
|
) -> FlightWaypoint:
|
|
if flight.flight_type in {FlightType.ANTISHIP, FlightType.BAI}:
|
|
return builder.bai_group(target)
|
|
elif flight.flight_type == FlightType.DEAD:
|
|
return builder.dead_point(target)
|
|
elif flight.flight_type == FlightType.SEAD:
|
|
return builder.sead_point(target)
|
|
else:
|
|
return builder.strike_point(target)
|
|
|
|
@staticmethod
|
|
def target_area_waypoint(
|
|
flight: Flight, location: MissionTarget, builder: WaypointBuilder
|
|
) -> FlightWaypoint:
|
|
if flight.flight_type == FlightType.DEAD:
|
|
return builder.dead_area(location)
|
|
elif flight.flight_type == FlightType.SEAD:
|
|
return builder.sead_area(location)
|
|
elif flight.flight_type == FlightType.OCA_AIRCRAFT:
|
|
return builder.oca_strike_area(location)
|
|
else:
|
|
return builder.strike_area(location)
|
|
|
|
def _hold_point(self, flight: Flight) -> Point:
|
|
assert self.package.waypoints is not None
|
|
origin = flight.departure.position
|
|
target = self.package.target.position
|
|
join = self.package.waypoints.join
|
|
origin_to_join = origin.distance_to_point(join)
|
|
if meters(origin_to_join) < self.doctrine.push_distance:
|
|
# If the origin airfield is closer to the join point, than the minimum push
|
|
# distance. Plan the hold point such that it retreats from the origin
|
|
# airfield.
|
|
return join.point_from_heading(
|
|
target.heading_between_point(origin), self.doctrine.push_distance.meters
|
|
)
|
|
|
|
heading_to_join = origin.heading_between_point(join)
|
|
hold_point = origin.point_from_heading(
|
|
heading_to_join, self.doctrine.push_distance.meters
|
|
)
|
|
hold_distance = meters(hold_point.distance_to_point(join))
|
|
if hold_distance >= self.doctrine.push_distance:
|
|
# Hold point is between the origin airfield and the join point and
|
|
# spaced sufficiently.
|
|
return hold_point
|
|
|
|
# The hold point is between the origin airfield and the join point, but
|
|
# the distance between the hold point and the join point is too short.
|
|
# Bend the hold point out to extend the distance while maintaining the
|
|
# minimum distance from the origin airfield to keep the AI flying
|
|
# properly.
|
|
origin_to_join = origin.distance_to_point(join)
|
|
cos_theta = (
|
|
self.doctrine.hold_distance.meters ** 2
|
|
+ origin_to_join ** 2
|
|
- self.doctrine.join_distance.meters ** 2
|
|
) / (2 * self.doctrine.hold_distance.meters * origin_to_join)
|
|
try:
|
|
theta = math.acos(cos_theta)
|
|
except ValueError:
|
|
# No solution that maintains hold and join distances. Extend the
|
|
# hold point away from the target.
|
|
return origin.point_from_heading(
|
|
target.heading_between_point(origin), self.doctrine.hold_distance.meters
|
|
)
|
|
|
|
return origin.point_from_heading(
|
|
heading_to_join - theta, self.doctrine.hold_distance.meters
|
|
)
|
|
|
|
# TODO: Make a model for the waypoint builder and use that in the UI.
|
|
def generate_rtb_waypoint(
|
|
self, flight: Flight, arrival: ControlPoint
|
|
) -> FlightWaypoint:
|
|
"""Generate RTB landing point.
|
|
|
|
Args:
|
|
flight: The flight to generate the landing waypoint for.
|
|
arrival: Arrival airfield or carrier.
|
|
"""
|
|
builder = WaypointBuilder(flight, self.coalition)
|
|
return builder.land(arrival)
|
|
|
|
def strike_flightplan(
|
|
self,
|
|
flight: Flight,
|
|
location: MissionTarget,
|
|
ingress_type: FlightWaypointType,
|
|
targets: Optional[List[StrikeTarget]] = None,
|
|
lead_time: timedelta = timedelta(),
|
|
) -> StrikeFlightPlan:
|
|
assert self.package.waypoints is not None
|
|
builder = WaypointBuilder(flight, self.coalition, targets)
|
|
|
|
target_waypoints: List[FlightWaypoint] = []
|
|
if targets is not None:
|
|
for target in targets:
|
|
target_waypoints.append(self.target_waypoint(flight, builder, target))
|
|
else:
|
|
target_waypoints.append(
|
|
self.target_area_waypoint(flight, location, builder)
|
|
)
|
|
|
|
hold = builder.hold(self._hold_point(flight))
|
|
join = builder.join(self.package.waypoints.join)
|
|
split = builder.split(self.package.waypoints.split)
|
|
|
|
return StrikeFlightPlan(
|
|
package=self.package,
|
|
flight=flight,
|
|
takeoff=builder.takeoff(flight.departure),
|
|
hold=hold,
|
|
hold_duration=timedelta(minutes=5),
|
|
nav_to=builder.nav_path(
|
|
hold.position, join.position, self.doctrine.ingress_altitude
|
|
),
|
|
join=join,
|
|
ingress=builder.ingress(
|
|
ingress_type, self.package.waypoints.ingress, location
|
|
),
|
|
targets=target_waypoints,
|
|
split=split,
|
|
nav_from=builder.nav_path(
|
|
split.position, flight.arrival.position, self.doctrine.ingress_altitude
|
|
),
|
|
land=builder.land(flight.arrival),
|
|
divert=builder.divert(flight.divert),
|
|
bullseye=builder.bullseye(),
|
|
lead_time=lead_time,
|
|
)
|
|
|
|
def _retreating_rendezvous_point(self, attack_transition: Point) -> Point:
|
|
"""Creates a rendezvous point that retreats from the origin airfield."""
|
|
return attack_transition.point_from_heading(
|
|
self.package.target.position.heading_between_point(
|
|
self.package_airfield().position
|
|
),
|
|
self.doctrine.join_distance.meters,
|
|
)
|
|
|
|
def _advancing_rendezvous_point(self, attack_transition: Point) -> Point:
|
|
"""Creates a rendezvous point that advances toward the target."""
|
|
heading = self._heading_to_package_airfield(attack_transition)
|
|
return attack_transition.point_from_heading(
|
|
heading, -self.doctrine.join_distance.meters
|
|
)
|
|
|
|
def _rendezvous_should_retreat(self, attack_transition: Point) -> bool:
|
|
transition_target_distance = attack_transition.distance_to_point(
|
|
self.package.target.position
|
|
)
|
|
origin_target_distance = self._distance_to_package_airfield(
|
|
self.package.target.position
|
|
)
|
|
|
|
# If the origin point is closer to the target than the ingress point,
|
|
# the rendezvous point should be positioned in a position that retreats
|
|
# from the origin airfield.
|
|
return origin_target_distance < transition_target_distance
|
|
|
|
def _rendezvous_point(self, attack_transition: Point) -> Point:
|
|
"""Returns the position of the rendezvous point.
|
|
|
|
Args:
|
|
attack_transition: The ingress or target point for this rendezvous.
|
|
"""
|
|
if self._rendezvous_should_retreat(attack_transition):
|
|
return self._retreating_rendezvous_point(attack_transition)
|
|
return self._advancing_rendezvous_point(attack_transition)
|
|
|
|
def _ingress_point(self, heading: float) -> Point:
|
|
return self.package.target.position.point_from_heading(
|
|
heading - 180, self.doctrine.max_ingress_distance.meters
|
|
)
|
|
|
|
def _target_heading_to_package_airfield(self) -> float:
|
|
return self._heading_to_package_airfield(self.package.target.position)
|
|
|
|
def _heading_to_package_airfield(self, point: Point) -> float:
|
|
return self.package_airfield().position.heading_between_point(point)
|
|
|
|
def _distance_to_package_airfield(self, point: Point) -> float:
|
|
return self.package_airfield().position.distance_to_point(point)
|
|
|
|
def package_airfield(self) -> ControlPoint:
|
|
# We'll always have a package, but if this is being planned via the UI
|
|
# it could be the first flight in the package.
|
|
if not self.package.flights:
|
|
raise PlanningError(
|
|
"Cannot determine source airfield for package with no flights"
|
|
)
|
|
|
|
# The package airfield is either the flight's airfield (when there is no
|
|
# package) or the closest airfield to the objective that is the
|
|
# departure airfield for some flight in the package.
|
|
cache = ObjectiveDistanceCache.get_closest_airfields(self.package.target)
|
|
for airfield in cache.operational_airfields:
|
|
for flight in self.package.flights:
|
|
if flight.departure == airfield:
|
|
return airfield
|
|
raise PlanningError("Could not find any airfield assigned to this package")
|