mirror of
https://github.com/dcs-liberation/dcs_liberation.git
synced 2025-11-10 14:22:26 +00:00
d369ce8847
Fighter sweeps arrive at the target ahead of the rest of the package (currently a fixed 5 minute lead) to clear out enemy fighters and then RTB. Fixes https://github.com/Khopa/dcs_liberation/issues/348
418 lines
15 KiB
Python
418 lines
15 KiB
Python
from __future__ import annotations
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from dataclasses import dataclass
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from typing import List, Optional, Tuple, Union
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from dcs.mapping import Point
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from dcs.unit import Unit
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from game.data.doctrine import Doctrine
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from game.utils import nm_to_meter
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from game.weather import Conditions
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from theater import ControlPoint, MissionTarget, TheaterGroundObject
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from .flight import Flight, FlightWaypoint, FlightWaypointType
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from ..runways import RunwayAssigner
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@dataclass(frozen=True)
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class StrikeTarget:
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name: str
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target: Union[TheaterGroundObject, Unit]
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class WaypointBuilder:
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def __init__(self, conditions: Conditions, flight: Flight,
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doctrine: Doctrine,
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targets: Optional[List[StrikeTarget]] = None) -> None:
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self.conditions = conditions
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self.flight = flight
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self.doctrine = doctrine
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self.targets = targets
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@property
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def is_helo(self) -> bool:
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return getattr(self.flight.unit_type, "helicopter", False)
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@staticmethod
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def takeoff(departure: ControlPoint) -> FlightWaypoint:
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"""Create takeoff waypoint for the given arrival airfield or carrier.
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Note that the takeoff waypoint will automatically be created by pydcs
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when we create the group, but creating our own before generation makes
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the planning code simpler.
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Args:
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departure: Departure airfield or carrier.
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"""
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position = departure.position
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waypoint = FlightWaypoint(
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FlightWaypointType.TAKEOFF,
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position.x,
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position.y,
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0
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)
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waypoint.name = "TAKEOFF"
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waypoint.alt_type = "RADIO"
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waypoint.description = "Takeoff"
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waypoint.pretty_name = "Takeoff"
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return waypoint
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def ascent(self, departure: ControlPoint) -> FlightWaypoint:
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"""Create ascent waypoint for the given departure airfield or carrier.
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Args:
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departure: Departure airfield or carrier.
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"""
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heading = RunwayAssigner(self.conditions).takeoff_heading(departure)
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position = departure.position.point_from_heading(
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heading, nm_to_meter(5)
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)
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waypoint = FlightWaypoint(
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FlightWaypointType.ASCEND_POINT,
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position.x,
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position.y,
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500 if self.is_helo else self.doctrine.pattern_altitude
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)
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waypoint.name = "ASCEND"
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waypoint.alt_type = "RADIO"
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waypoint.description = "Ascend"
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waypoint.pretty_name = "Ascend"
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return waypoint
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def descent(self, arrival: ControlPoint) -> FlightWaypoint:
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"""Create descent waypoint for the given arrival airfield or carrier.
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Args:
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arrival: Arrival airfield or carrier.
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"""
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landing_heading = RunwayAssigner(self.conditions).landing_heading(
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arrival)
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heading = (landing_heading + 180) % 360
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position = arrival.position.point_from_heading(
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heading, nm_to_meter(5)
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)
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waypoint = FlightWaypoint(
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FlightWaypointType.DESCENT_POINT,
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position.x,
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position.y,
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300 if self.is_helo else self.doctrine.pattern_altitude
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)
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waypoint.name = "DESCEND"
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waypoint.alt_type = "RADIO"
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waypoint.description = "Descend to pattern altitude"
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waypoint.pretty_name = "Descend"
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return waypoint
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@staticmethod
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def land(arrival: ControlPoint) -> FlightWaypoint:
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"""Create descent waypoint for the given arrival airfield or carrier.
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Args:
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arrival: Arrival airfield or carrier.
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"""
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position = arrival.position
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waypoint = FlightWaypoint(
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FlightWaypointType.LANDING_POINT,
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position.x,
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position.y,
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0
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)
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waypoint.name = "LANDING"
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waypoint.alt_type = "RADIO"
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waypoint.description = "Land"
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waypoint.pretty_name = "Land"
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return waypoint
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def hold(self, position: Point) -> FlightWaypoint:
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waypoint = FlightWaypoint(
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FlightWaypointType.LOITER,
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position.x,
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position.y,
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500 if self.is_helo else self.doctrine.rendezvous_altitude
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)
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waypoint.pretty_name = "Hold"
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waypoint.description = "Wait until push time"
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waypoint.name = "HOLD"
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return waypoint
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def join(self, position: Point) -> FlightWaypoint:
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waypoint = FlightWaypoint(
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FlightWaypointType.JOIN,
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position.x,
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position.y,
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500 if self.is_helo else self.doctrine.ingress_altitude
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)
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waypoint.pretty_name = "Join"
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waypoint.description = "Rendezvous with package"
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waypoint.name = "JOIN"
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return waypoint
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def split(self, position: Point) -> FlightWaypoint:
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waypoint = FlightWaypoint(
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FlightWaypointType.SPLIT,
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position.x,
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position.y,
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500 if self.is_helo else self.doctrine.ingress_altitude
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)
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waypoint.pretty_name = "Split"
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waypoint.description = "Depart from package"
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waypoint.name = "SPLIT"
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return waypoint
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def ingress_cas(self, position: Point,
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objective: MissionTarget) -> FlightWaypoint:
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return self._ingress(FlightWaypointType.INGRESS_CAS, position,
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objective)
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def ingress_escort(self, position: Point,
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objective: MissionTarget) -> FlightWaypoint:
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return self._ingress(FlightWaypointType.INGRESS_ESCORT, position,
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objective)
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def ingress_dead(self, position:Point,
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objective: MissionTarget) -> FlightWaypoint:
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return self._ingress(FlightWaypointType.INGRESS_DEAD, position,
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objective)
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def ingress_sead(self, position: Point,
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objective: MissionTarget) -> FlightWaypoint:
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return self._ingress(FlightWaypointType.INGRESS_SEAD, position,
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objective)
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def ingress_strike(self, position: Point,
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objective: MissionTarget) -> FlightWaypoint:
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return self._ingress(FlightWaypointType.INGRESS_STRIKE, position,
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objective)
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def _ingress(self, ingress_type: FlightWaypointType, position: Point,
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objective: MissionTarget) -> FlightWaypoint:
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waypoint = FlightWaypoint(
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ingress_type,
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position.x,
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position.y,
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500 if self.is_helo else self.doctrine.ingress_altitude
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)
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waypoint.pretty_name = "INGRESS on " + objective.name
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waypoint.description = "INGRESS on " + objective.name
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waypoint.name = "INGRESS"
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# TODO: This seems wrong, but it's what was there before.
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waypoint.targets.append(objective)
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return waypoint
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def egress(self, position: Point, target: MissionTarget) -> FlightWaypoint:
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waypoint = FlightWaypoint(
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FlightWaypointType.EGRESS,
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position.x,
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position.y,
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500 if self.is_helo else self.doctrine.ingress_altitude
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)
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waypoint.pretty_name = "EGRESS from " + target.name
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waypoint.description = "EGRESS from " + target.name
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waypoint.name = "EGRESS"
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return waypoint
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def dead_point(self, target: StrikeTarget) -> FlightWaypoint:
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return self._target_point(target, f"STRIKE {target.name}")
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def sead_point(self, target: StrikeTarget) -> FlightWaypoint:
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return self._target_point(target, f"STRIKE {target.name}")
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def strike_point(self, target: StrikeTarget) -> FlightWaypoint:
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return self._target_point(target, f"STRIKE {target.name}")
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@staticmethod
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def _target_point(target: StrikeTarget, description: str) -> FlightWaypoint:
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waypoint = FlightWaypoint(
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FlightWaypointType.TARGET_POINT,
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target.target.position.x,
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target.target.position.y,
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0
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)
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waypoint.description = description
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waypoint.pretty_name = description
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waypoint.name = target.name
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# The target waypoints are only for the player's benefit. AI tasks for
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# the target are set on the ingress point so they begin their attack
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# *before* reaching the target.
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waypoint.only_for_player = True
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return waypoint
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def strike_area(self, target: MissionTarget) -> FlightWaypoint:
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return self._target_area(f"STRIKE {target.name}", target)
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def sead_area(self, target: MissionTarget) -> FlightWaypoint:
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return self._target_area(f"SEAD on {target.name}", target)
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def dead_area(self, target: MissionTarget) -> FlightWaypoint:
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return self._target_area(f"DEAD on {target.name}", target)
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@staticmethod
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def _target_area(name: str, location: MissionTarget) -> FlightWaypoint:
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waypoint = FlightWaypoint(
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FlightWaypointType.TARGET_GROUP_LOC,
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location.position.x,
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location.position.y,
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0
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)
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waypoint.description = name
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waypoint.pretty_name = name
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waypoint.name = name
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# The target waypoints are only for the player's benefit. AI tasks for
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# the target are set on the ingress point so they begin their attack
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# *before* reaching the target.
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waypoint.only_for_player = True
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return waypoint
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def cas(self, position: Point) -> FlightWaypoint:
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waypoint = FlightWaypoint(
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FlightWaypointType.CAS,
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position.x,
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position.y,
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500 if self.is_helo else 1000
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)
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waypoint.alt_type = "RADIO"
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waypoint.description = "Provide CAS"
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waypoint.name = "CAS"
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waypoint.pretty_name = "CAS"
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return waypoint
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@staticmethod
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def race_track_start(position: Point, altitude: int) -> FlightWaypoint:
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"""Creates a racetrack start waypoint.
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Args:
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position: Position of the waypoint.
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altitude: Altitude of the racetrack in meters.
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"""
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waypoint = FlightWaypoint(
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FlightWaypointType.PATROL_TRACK,
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position.x,
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position.y,
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altitude
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)
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waypoint.name = "RACETRACK START"
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waypoint.description = "Orbit between this point and the next point"
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waypoint.pretty_name = "Race-track start"
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return waypoint
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@staticmethod
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def race_track_end(position: Point, altitude: int) -> FlightWaypoint:
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"""Creates a racetrack end waypoint.
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Args:
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position: Position of the waypoint.
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altitude: Altitude of the racetrack in meters.
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"""
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waypoint = FlightWaypoint(
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FlightWaypointType.PATROL,
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position.x,
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position.y,
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altitude
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)
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waypoint.name = "RACETRACK END"
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waypoint.description = "Orbit between this point and the previous point"
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waypoint.pretty_name = "Race-track end"
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return waypoint
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def race_track(self, start: Point, end: Point,
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altitude: int) -> Tuple[FlightWaypoint, FlightWaypoint]:
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"""Creates two waypoint for a racetrack orbit.
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Args:
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start: The beginning racetrack waypoint.
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end: The ending racetrack waypoint.
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altitude: The racetrack altitude.
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"""
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return (self.race_track_start(start, altitude),
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self.race_track_end(end, altitude))
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@staticmethod
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def sweep_start(position: Point, altitude: int) -> FlightWaypoint:
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"""Creates a sweep start waypoint.
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Args:
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position: Position of the waypoint.
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altitude: Altitude of the sweep in meters.
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"""
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waypoint = FlightWaypoint(
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FlightWaypointType.INGRESS_SWEEP,
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position.x,
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position.y,
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altitude
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)
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waypoint.name = "SWEEP START"
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waypoint.description = "Proceed to the target and engage enemy aircraft"
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waypoint.pretty_name = "Sweep start"
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return waypoint
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@staticmethod
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def sweep_end(position: Point, altitude: int) -> FlightWaypoint:
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"""Creates a sweep end waypoint.
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Args:
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position: Position of the waypoint.
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altitude: Altitude of the sweep in meters.
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"""
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waypoint = FlightWaypoint(
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FlightWaypointType.EGRESS,
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position.x,
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position.y,
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altitude
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)
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waypoint.name = "SWEEP END"
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waypoint.description = "End of sweep"
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waypoint.pretty_name = "Sweep end"
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return waypoint
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def sweep(self, start: Point, end: Point,
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altitude: int) -> Tuple[FlightWaypoint, FlightWaypoint]:
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"""Creates two waypoint for a racetrack orbit.
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Args:
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start: The beginning of the sweep.
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end: The end of the sweep.
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altitude: The sweep altitude.
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"""
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return (self.sweep_start(start, altitude),
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self.sweep_end(end, altitude))
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def rtb(self,
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arrival: ControlPoint) -> Tuple[FlightWaypoint, FlightWaypoint]:
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"""Creates descent ant landing waypoints for the given control point.
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Args:
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arrival: Arrival airfield or carrier.
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"""
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return self.descent(arrival), self.land(arrival)
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def escort(self, ingress: Point, target: MissionTarget, egress: Point) -> \
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Tuple[FlightWaypoint, FlightWaypoint, FlightWaypoint]:
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"""Creates the waypoints needed to escort the package.
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Args:
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ingress: The package ingress point.
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target: The mission target.
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egress: The package egress point.
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"""
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# This would preferably be no points at all, and instead the Escort task
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# would begin on the join point and end on the split point, however the
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# escort task does not appear to work properly (see the longer
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# description in gen.aircraft.JoinPointBuilder), so instead we give
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# the escort flights a flight plan including the ingress point, target
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# area, and egress point.
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ingress = self._ingress(FlightWaypointType.INGRESS_ESCORT, ingress,
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target)
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waypoint = FlightWaypoint(
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FlightWaypointType.TARGET_GROUP_LOC,
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target.position.x,
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target.position.y,
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500 if self.is_helo else self.doctrine.ingress_altitude
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)
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waypoint.name = "TARGET"
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waypoint.description = "Escort the package"
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waypoint.pretty_name = "Target area"
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egress = self.egress(egress, target)
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return ingress, waypoint, egress
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