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75498fe061
There's an ugly special case in flight simulation to handle hold points because we don't differentiate between the total time between two waypoints (which can include delays from actions like holding) and travel time. Split those up and remove the special case.
126 lines
4.2 KiB
Python
126 lines
4.2 KiB
Python
from __future__ import annotations
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from datetime import timedelta
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from typing import Type
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from dcs import Point
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from game.utils import Distance, Heading, feet, meters
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from .ibuilder import IBuilder
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from .patrolling import PatrollingLayout
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from .refuelingflightplan import RefuelingFlightPlan
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from .waypointbuilder import WaypointBuilder
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from ..flightwaypoint import FlightWaypoint
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from ..flightwaypointtype import FlightWaypointType
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class PackageRefuelingFlightPlan(RefuelingFlightPlan):
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@staticmethod
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def builder_type() -> Type[Builder]:
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return Builder
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@property
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def patrol_duration(self) -> timedelta:
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# TODO: Only consider aircraft that can refuel with this tanker type.
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refuel_time_minutes = 5
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for self.flight in self.package.flights:
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flight_size = self.flight.roster.max_size
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refuel_time_minutes = refuel_time_minutes + 4 * flight_size + 1
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return timedelta(minutes=refuel_time_minutes)
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def target_area_waypoint(self) -> FlightWaypoint:
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return FlightWaypoint(
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"TARGET AREA",
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FlightWaypointType.TARGET_GROUP_LOC,
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self.package.target.position,
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meters(0),
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"RADIO",
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)
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@property
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def patrol_start_time(self) -> timedelta:
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altitude = self.flight.unit_type.patrol_altitude
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if altitude is None:
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altitude = Distance.from_feet(20000)
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assert self.package.waypoints is not None
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# Cheat in a FlightWaypoint for the split point.
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split: Point = self.package.waypoints.split
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split_waypoint: FlightWaypoint = FlightWaypoint(
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"SPLIT", FlightWaypointType.SPLIT, split, altitude
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)
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# Cheat in a FlightWaypoint for the refuel point.
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refuel: Point = self.package.waypoints.refuel
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refuel_waypoint: FlightWaypoint = FlightWaypoint(
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"REFUEL", FlightWaypointType.REFUEL, refuel, altitude
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)
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delay_target_to_split: timedelta = self.total_time_between_waypoints(
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self.target_area_waypoint(), split_waypoint
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)
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delay_split_to_refuel: timedelta = self.total_time_between_waypoints(
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split_waypoint, refuel_waypoint
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)
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return (
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self.package.time_over_target
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+ delay_target_to_split
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+ delay_split_to_refuel
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- timedelta(minutes=1.5)
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)
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class Builder(IBuilder[PackageRefuelingFlightPlan, PatrollingLayout]):
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def layout(self) -> PatrollingLayout:
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package_waypoints = self.package.waypoints
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assert package_waypoints is not None
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racetrack_half_distance = Distance.from_nautical_miles(20).meters
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racetrack_center = package_waypoints.refuel
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split_heading = Heading.from_degrees(
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racetrack_center.heading_between_point(package_waypoints.split)
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)
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home_heading = split_heading.opposite
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racetrack_start = racetrack_center.point_from_heading(
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split_heading.degrees, racetrack_half_distance
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)
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racetrack_end = racetrack_center.point_from_heading(
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home_heading.degrees, racetrack_half_distance
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)
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builder = WaypointBuilder(self.flight)
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tanker_type = self.flight.unit_type
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if tanker_type.patrol_altitude is not None:
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altitude = tanker_type.patrol_altitude
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else:
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altitude = feet(21000)
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racetrack = builder.race_track(racetrack_start, racetrack_end, altitude)
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return PatrollingLayout(
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departure=builder.takeoff(self.flight.departure),
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nav_to=builder.nav_path(
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self.flight.departure.position, racetrack_start, altitude
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),
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nav_from=builder.nav_path(
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racetrack_end, self.flight.arrival.position, altitude
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),
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patrol_start=racetrack[0],
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patrol_end=racetrack[1],
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arrival=builder.land(self.flight.arrival),
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divert=builder.divert(self.flight.divert),
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bullseye=builder.bullseye(),
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)
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def build(self, dump_debug_info: bool = False) -> PackageRefuelingFlightPlan:
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return PackageRefuelingFlightPlan(self.flight, self.layout())
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