def _frontline_vector(self, from_cp: ControlPoint, to_cp: ControlPoint):
# Cache mechanism to avoid performing frontline vector computation on every frame
key = str(from_cp.id) + "_" + str(to_cp.id)
if key in self.frontline_vector_cache:
return self.frontline_vector_cache[key]
else:
frontline = Conflict.frontline_vector(from_cp, to_cp, self.game.theater)
self.frontline_vector_cache[key] = frontline
return frontline
def generate_frontline_cap(self, flight, ally_cp, enemy_cp):
"""
Generate a cap flight for the frontline between ally_cp and enemy cp in order to ensure air superiority and
protect friendly CAP airbase
:param flight: Flight to setup
:param ally_cp: CP to protect
:param enemy_cp: Enemy connected cp
"""
flight.flight_type = FlightType.CAP
patrol_alt = random.randint(self.doctrine["PATROL_ALT_RANGE"][0],
self.doctrine["PATROL_ALT_RANGE"][1])
# Find targets waypoints
ingress, heading, distance = Conflict.frontline_vector(
ally_cp, enemy_cp, self.game.theater)
center = ingress.point_from_heading(heading, distance / 2)
orbit_center = center.point_from_heading(
heading - 90, random.randint(nm_to_meter(6), nm_to_meter(15)))
combat_width = distance / 2
if combat_width > 500000:
combat_width = 500000
if combat_width < 35000:
combat_width = 35000
radius = combat_width * 1.25
orbit0p = orbit_center.point_from_heading(heading, radius)
orbit1p = orbit_center.point_from_heading(heading + 180, radius)
# Create points
ascend = self.generate_ascend_point(flight.from_cp)
flight.points.append(ascend)
orbit0 = FlightWaypoint(orbit0p.x, orbit0p.y, patrol_alt)
orbit0.name = "ORBIT 0"
orbit0.description = "Standby between this point and the next one"
orbit0.pretty_name = "Race-track start"
orbit0.waypoint_type = FlightWaypointType.PATROL_TRACK
flight.points.append(orbit0)
orbit1 = FlightWaypoint(orbit1p.x, orbit1p.y, patrol_alt)
orbit1.name = "ORBIT 1"
orbit1.description = "Standby between this point and the previous one"
orbit1.pretty_name = "Race-track end"
orbit1.waypoint_type = FlightWaypointType.PATROL
flight.points.append(orbit1)
# Note : Targets of a PATROL TRACK waypoints are the points to be defended
orbit0.targets.append(flight.from_cp)
orbit0.targets.append(center)
descend = self.generate_descend_point(flight.from_cp)
flight.points.append(descend)
rtb = self.generate_rtb_waypoint(flight.from_cp)
flight.points.append(rtb)
def generate_cas(self, flight, from_cp, location):
"""
Generate a CAS flight at a given location
:param flight: Flight to setup
:param location: Location of the CAS targets
"""
is_helo = hasattr(flight.unit_type,
"helicopter") and flight.unit_type.helicopter
cap_alt = 1000
flight.points = []
flight.flight_type = FlightType.CAS
ingress, heading, distance = Conflict.frontline_vector(
from_cp, location, self.game.theater)
center = ingress.point_from_heading(heading, distance / 2)
egress = ingress.point_from_heading(heading, distance)
ascend = self.generate_ascend_point(flight.from_cp)
if is_helo:
cap_alt = 500
ascend.alt = 500
flight.points.append(ascend)
ingress_point = FlightWaypoint(ingress.x, ingress.y, cap_alt)
ingress_point.alt_type = "RADIO"
ingress_point.name = "INGRESS"
ingress_point.pretty_name = "INGRESS"
ingress_point.description = "Ingress into CAS area"
ingress_point.waypoint_type = FlightWaypointType.INGRESS_CAS
flight.points.append(ingress_point)
center_point = FlightWaypoint(center.x, center.y, cap_alt)
center_point.alt_type = "RADIO"
center_point.description = "Provide CAS"
center_point.name = "CAS"
center_point.pretty_name = "CAS"
center_point.waypoint_type = FlightWaypointType.CAS
flight.points.append(center_point)
egress_point = FlightWaypoint(egress.x, egress.y, cap_alt)
egress_point.alt_type = "RADIO"
egress_point.description = "Egress from CAS area"
egress_point.name = "EGRESS"
egress_point.pretty_name = "EGRESS"
egress_point.waypoint_type = FlightWaypointType.EGRESS
flight.points.append(egress_point)
descend = self.generate_descend_point(flight.from_cp)
if is_helo:
descend.alt = 300
flight.points.append(descend)
rtb = self.generate_rtb_waypoint(flight.from_cp)
flight.points.append(rtb)
def draw_actual_frontline(self, frontline: FrontLine,
scene: QGraphicsScene, pen: QPen) -> None:
self.draw_bezier_frontline(scene, pen, frontline)
vector = Conflict.frontline_vector(frontline.control_point_a,
frontline.control_point_b,
self.game.theater)
left_pos = self._transform_point(vector[0])
right_pos = self._transform_point(vector[0].point_from_heading(
vector[1], vector[2]))
scene.addItem(
QFrontLine(left_pos[0], left_pos[1], right_pos[0], right_pos[1],
frontline, self.game_model))
def for_faction(cls, game: Game, player: bool) -> ThreatZones:
"""Generates the threat zones projected by the given coalition.
Args:
game: The game to generate the threat zone for.
player: True if the coalition projecting the threat zone belongs to
the player.
Returns:
The threat zones projected by the given coalition. If the threat
zone belongs to the player, it is the zone that will be avoided by
the enemy and vice versa.
"""
air_threats = []
air_defenses = []
for control_point in game.theater.controlpoints:
if control_point.captured != player:
continue
if control_point.runway_is_operational():
point = ShapelyPoint(control_point.position.x,
control_point.position.y)
cap_threat_range = cls.barcap_threat_range(game, control_point)
air_threats.append(point.buffer(cap_threat_range.meters))
for tgo in control_point.ground_objects:
for group in tgo.groups:
threat_range = tgo.threat_range(group)
# Any system with a shorter range than this is not worth
# even avoiding.
if threat_range > nautical_miles(3):
point = ShapelyPoint(tgo.position.x, tgo.position.y)
threat_zone = point.buffer(threat_range.meters)
air_defenses.append(threat_zone)
for front_line in game.theater.conflicts(player):
vector = Conflict.frontline_vector(front_line.control_point_a,
front_line.control_point_b,
game.theater)
start = vector[0]
end = vector[0].point_from_heading(vector[1], vector[2])
line = LineString([
ShapelyPoint(start.x, start.y),
ShapelyPoint(end.x, end.y),
])
doctrine = game.faction_for(player).doctrine
air_threats.append(
line.buffer(doctrine.cap_engagement_range.meters))
return cls(airbases=unary_union(air_threats),
air_defenses=unary_union(air_defenses))