dcs-retribution/gen/armor.py
Dan Albert 4a3ef42e67 Wrap the pydcs FlyingType in our own AircraftType.
This is an attempt to remove a lot of our supposedly unnecessary error
handling. Every aircraft should have a price, a description, a name,
etc; and none of those should require carrying around the faction's
country as context.

This moves all the data for aircraft into yaml files (only one converted
here as an example). Most of the "extended unit info" isn't actually
being read yet.

To replace the renaming of units based on the county, we instead
generate multiple types of each unit when necessary. The CF-18 is just
as much a first-class type as the F/A-18 is.

This doesn't work in its current state because it does break all the
existing names for aircraft that are used in the faction and squadron
files, and we no longer let those errors go as a warning. It will be an
annoying one time switch, but it allows us to define the names that get
used in these files instead of being sensitive to changes as they happen
in pydcs, and allows faction designers to specifically choose, for
example, the Su-22 instead of the Su-17.

One thing not handled by this is aircraft task capability. This is
because the lists in ai_flight_planner_db.py are a priority list, and to
move it out to a yaml file we'd need to assign a weight to it that would
be used to stack rank each aircraft. That's doable, but it makes it much
more difficult to see the ordering of aircraft at a glance, and much
more annoying to move aircraft around in the priority list. I don't
think this is worth doing, and the priority lists will remain in their
own separate lists.

This includes the converted I used to convert all the old unit info and
factions to the new format. This doesn't need to live long, but we may
want to reuse it in the future so we want it in the version history.
2021-06-12 20:13:45 -07:00

816 lines
30 KiB
Python

from __future__ import annotations
import logging
import random
from dataclasses import dataclass
from typing import TYPE_CHECKING, List, Optional, Tuple
from dcs import Mission
from dcs.action import AITaskPush
from dcs.condition import GroupLifeLess, Or, TimeAfter, UnitDamaged
from dcs.country import Country
from dcs.mapping import Point
from dcs.planes import MQ_9_Reaper
from dcs.point import PointAction
from dcs.task import (
EPLRS,
AttackGroup,
ControlledTask,
FireAtPoint,
GoToWaypoint,
Hold,
OrbitAction,
SetImmortalCommand,
SetInvisibleCommand,
)
from dcs.triggers import Event, TriggerOnce
from dcs.unit import Vehicle
from dcs.unitgroup import VehicleGroup
from dcs.unittype import VehicleType
from game import db
from game.dcs.aircrafttype import AircraftType
from game.unitmap import UnitMap
from game.utils import heading_sum, opposite_heading
from game.theater.controlpoint import ControlPoint
from gen.ground_forces.ai_ground_planner import (
DISTANCE_FROM_FRONTLINE,
CombatGroup,
CombatGroupRole,
)
from .callsigns import callsign_for_support_unit
from .conflictgen import Conflict
from .ground_forces.combat_stance import CombatStance
from .naming import namegen
if TYPE_CHECKING:
from game import Game
SPREAD_DISTANCE_FACTOR = 0.1, 0.3
SPREAD_DISTANCE_SIZE_FACTOR = 0.1
FRONTLINE_CAS_FIGHTS_COUNT = 16, 24
FRONTLINE_CAS_GROUP_MIN = 1, 2
FRONTLINE_CAS_PADDING = 12000
RETREAT_DISTANCE = 20000
BREAKTHROUGH_OFFENSIVE_DISTANCE = 35000
AGGRESIVE_MOVE_DISTANCE = 16000
FIGHT_DISTANCE = 3500
RANDOM_OFFSET_ATTACK = 250
INFANTRY_GROUP_SIZE = 5
@dataclass(frozen=True)
class JtacInfo:
"""JTAC information."""
group_name: str
unit_name: str
callsign: str
region: str
code: str
blue: bool
# TODO: Radio info? Type?
class GroundConflictGenerator:
def __init__(
self,
mission: Mission,
conflict: Conflict,
game: Game,
player_planned_combat_groups: List[CombatGroup],
enemy_planned_combat_groups: List[CombatGroup],
player_stance: CombatStance,
unit_map: UnitMap,
) -> None:
self.mission = mission
self.conflict = conflict
self.enemy_planned_combat_groups = enemy_planned_combat_groups
self.player_planned_combat_groups = player_planned_combat_groups
self.player_stance = CombatStance(player_stance)
self.enemy_stance = self._enemy_stance()
self.game = game
self.unit_map = unit_map
self.jtacs: List[JtacInfo] = []
def _enemy_stance(self):
"""Picks the enemy stance according to the number of planned groups on the frontline for each side"""
if len(self.enemy_planned_combat_groups) > len(
self.player_planned_combat_groups
):
return random.choice(
[
CombatStance.AGGRESSIVE,
CombatStance.AGGRESSIVE,
CombatStance.AGGRESSIVE,
CombatStance.ELIMINATION,
CombatStance.BREAKTHROUGH,
]
)
else:
return random.choice(
[
CombatStance.DEFENSIVE,
CombatStance.DEFENSIVE,
CombatStance.DEFENSIVE,
CombatStance.AMBUSH,
CombatStance.AGGRESSIVE,
]
)
@staticmethod
def _group_point(point: Point, base_distance) -> Point:
distance = random.randint(
int(base_distance * SPREAD_DISTANCE_FACTOR[0]),
int(base_distance * SPREAD_DISTANCE_FACTOR[1]),
)
return point.random_point_within(
distance, base_distance * SPREAD_DISTANCE_SIZE_FACTOR
)
def generate(self):
position = Conflict.frontline_position(
self.conflict.front_line, self.game.theater
)
frontline_vector = Conflict.frontline_vector(
self.conflict.front_line, self.game.theater
)
# Create player groups at random position
player_groups = self._generate_groups(
self.player_planned_combat_groups, frontline_vector, True
)
# Create enemy groups at random position
enemy_groups = self._generate_groups(
self.enemy_planned_combat_groups, frontline_vector, False
)
# Plan combat actions for groups
self.plan_action_for_groups(
self.player_stance,
player_groups,
enemy_groups,
self.conflict.heading + 90,
self.conflict.blue_cp,
self.conflict.red_cp,
)
self.plan_action_for_groups(
self.enemy_stance,
enemy_groups,
player_groups,
self.conflict.heading - 90,
self.conflict.red_cp,
self.conflict.blue_cp,
)
# Add JTAC
if self.game.player_faction.has_jtac:
n = "JTAC" + str(self.conflict.blue_cp.id) + str(self.conflict.red_cp.id)
code = 1688 - len(self.jtacs)
utype = self.game.player_faction.jtac_unit
if self.game.player_faction.jtac_unit is None:
utype = AircraftType.named("MQ-9 Reaper")
jtac = self.mission.flight_group(
country=self.mission.country(self.game.player_country),
name=n,
aircraft_type=utype.dcs_unit_type,
position=position[0],
airport=None,
altitude=5000,
)
jtac.points[0].tasks.append(SetInvisibleCommand(True))
jtac.points[0].tasks.append(SetImmortalCommand(True))
jtac.points[0].tasks.append(
OrbitAction(5000, 300, OrbitAction.OrbitPattern.Circle)
)
frontline = (
f"Frontline {self.conflict.blue_cp.name}/{self.conflict.red_cp.name}"
)
# Note: Will need to change if we ever add ground based JTAC.
callsign = callsign_for_support_unit(jtac)
self.jtacs.append(
JtacInfo(
str(jtac.name),
n,
callsign,
frontline,
str(code),
blue=True,
)
)
def gen_infantry_group_for_group(
self, group: VehicleGroup, is_player: bool, side: Country, forward_heading: int
) -> None:
infantry_position = self.conflict.find_ground_position(
group.points[0].position.random_point_within(250, 50),
500,
forward_heading,
self.conflict.theater,
)
if not infantry_position:
logging.warning("Could not find infantry position")
return
if side == self.conflict.attackers_country:
cp = self.conflict.blue_cp
else:
cp = self.conflict.red_cp
if is_player:
faction = self.game.player_name
else:
faction = self.game.enemy_name
# Disable infantry unit gen if disabled
if not self.game.settings.perf_infantry:
if self.game.settings.manpads:
# 50% of armored units protected by manpad
if random.choice([True, False]):
manpads = db.find_manpad(faction)
if len(manpads) > 0:
u = random.choice(manpads)
self.mission.vehicle_group(
side,
namegen.next_infantry_name(side, cp.id, u),
u,
position=infantry_position,
group_size=1,
heading=forward_heading,
move_formation=PointAction.OffRoad,
)
return
possible_infantry_units = db.find_infantry(
faction, allow_manpad=self.game.settings.manpads
)
if len(possible_infantry_units) == 0:
return
u = random.choice(possible_infantry_units)
self.mission.vehicle_group(
side,
namegen.next_infantry_name(side, cp.id, u),
u,
position=infantry_position,
group_size=1,
heading=forward_heading,
move_formation=PointAction.OffRoad,
)
for i in range(INFANTRY_GROUP_SIZE):
u = random.choice(possible_infantry_units)
position = infantry_position.random_point_within(55, 5)
self.mission.vehicle_group(
side,
namegen.next_infantry_name(side, cp.id, u),
u,
position=position,
group_size=1,
heading=forward_heading,
move_formation=PointAction.OffRoad,
)
def _set_reform_waypoint(
self, dcs_group: VehicleGroup, forward_heading: int
) -> None:
"""Setting a waypoint close to the spawn position allows the group to reform gracefully
rather than spin
"""
reform_point = dcs_group.position.point_from_heading(forward_heading, 50)
dcs_group.add_waypoint(reform_point)
def _plan_artillery_action(
self,
stance: CombatStance,
gen_group: CombatGroup,
dcs_group: VehicleGroup,
forward_heading: int,
target: Point,
) -> bool:
"""
Handles adding the DCS tasks for artillery groups for all combat stances.
Returns True if tasking was added, returns False if the stance was not a combat stance.
"""
self._set_reform_waypoint(dcs_group, forward_heading)
if stance != CombatStance.RETREAT:
hold_task = Hold()
hold_task.number = 1
dcs_group.add_trigger_action(hold_task)
# Artillery strike random start
artillery_trigger = TriggerOnce(
Event.NoEvent, "ArtilleryFireTask #" + str(dcs_group.id)
)
artillery_trigger.add_condition(TimeAfter(seconds=random.randint(1, 45) * 60))
# TODO: Update to fire at group instead of point
fire_task = FireAtPoint(target, len(gen_group.units) * 10, 100)
fire_task.number = 2 if stance != CombatStance.RETREAT else 1
dcs_group.add_trigger_action(fire_task)
artillery_trigger.add_action(AITaskPush(dcs_group.id, len(dcs_group.tasks)))
self.mission.triggerrules.triggers.append(artillery_trigger)
# Artillery will fall back when under attack
if stance != CombatStance.RETREAT:
# Hold position
dcs_group.points[1].tasks.append(Hold())
retreat = self.find_retreat_point(
dcs_group, forward_heading, (int)(RETREAT_DISTANCE / 3)
)
dcs_group.add_waypoint(
dcs_group.position.point_from_heading(forward_heading, 1),
PointAction.OffRoad,
)
dcs_group.points[2].tasks.append(Hold())
dcs_group.add_waypoint(retreat, PointAction.OffRoad)
artillery_fallback = TriggerOnce(
Event.NoEvent, "ArtilleryRetreat #" + str(dcs_group.id)
)
for i, u in enumerate(dcs_group.units):
artillery_fallback.add_condition(UnitDamaged(u.id))
if i < len(dcs_group.units) - 1:
artillery_fallback.add_condition(Or())
hold_2 = Hold()
hold_2.number = 3
dcs_group.add_trigger_action(hold_2)
retreat_task = GoToWaypoint(to_index=3)
retreat_task.number = 4
dcs_group.add_trigger_action(retreat_task)
artillery_fallback.add_action(
AITaskPush(dcs_group.id, len(dcs_group.tasks))
)
self.mission.triggerrules.triggers.append(artillery_fallback)
for u in dcs_group.units:
u.initial = True
u.heading = forward_heading + random.randint(-5, 5)
return True
return False
def _plan_tank_ifv_action(
self,
stance: CombatStance,
enemy_groups: List[Tuple[VehicleGroup, CombatGroup]],
dcs_group: VehicleGroup,
forward_heading: int,
to_cp: ControlPoint,
) -> bool:
"""
Handles adding the DCS tasks for tank and IFV groups for all combat stances.
Returns True if tasking was added, returns False if the stance was not a combat stance.
"""
self._set_reform_waypoint(dcs_group, forward_heading)
if stance == CombatStance.AGGRESSIVE:
# Attack nearest enemy if any
# Then move forward OR Attack enemy base if it is not too far away
target = self.find_nearest_enemy_group(dcs_group, enemy_groups)
if target is not None:
rand_offset = Point(
random.randint(-RANDOM_OFFSET_ATTACK, RANDOM_OFFSET_ATTACK),
random.randint(-RANDOM_OFFSET_ATTACK, RANDOM_OFFSET_ATTACK),
)
target_point = self.conflict.theater.nearest_land_pos(
target.points[0].position + rand_offset
)
dcs_group.add_waypoint(target_point)
dcs_group.points[2].tasks.append(AttackGroup(target.id))
if (
to_cp.position.distance_to_point(dcs_group.points[0].position)
<= AGGRESIVE_MOVE_DISTANCE
):
attack_point = self.conflict.theater.nearest_land_pos(
to_cp.position.random_point_within(500, 0)
)
else:
# We use an offset heading here because DCS doesn't always
# force vehicles to move if there's no heading change.
offset_heading = forward_heading - 2
if offset_heading < 0:
offset_heading = 358
attack_point = self.find_offensive_point(
dcs_group, offset_heading, AGGRESIVE_MOVE_DISTANCE
)
dcs_group.add_waypoint(attack_point, PointAction.OffRoad)
elif stance == CombatStance.BREAKTHROUGH:
# In breakthrough mode, the units will move forward
# If the enemy base is close enough, the units will attack the base
if (
to_cp.position.distance_to_point(dcs_group.points[0].position)
<= BREAKTHROUGH_OFFENSIVE_DISTANCE
):
attack_point = self.conflict.theater.nearest_land_pos(
to_cp.position.random_point_within(500, 0)
)
else:
# We use an offset heading here because DCS doesn't always
# force vehicles to move if there's no heading change.
offset_heading = forward_heading - 1
if offset_heading < 0:
offset_heading = 359
attack_point = self.find_offensive_point(
dcs_group, offset_heading, BREAKTHROUGH_OFFENSIVE_DISTANCE
)
dcs_group.add_waypoint(attack_point, PointAction.OffRoad)
elif stance == CombatStance.ELIMINATION:
# In elimination mode, the units focus on destroying as much enemy groups as possible
targets = self.find_n_nearest_enemy_groups(dcs_group, enemy_groups, 3)
for i, target in enumerate(targets, start=1):
rand_offset = Point(
random.randint(-RANDOM_OFFSET_ATTACK, RANDOM_OFFSET_ATTACK),
random.randint(-RANDOM_OFFSET_ATTACK, RANDOM_OFFSET_ATTACK),
)
target_point = self.conflict.theater.nearest_land_pos(
target.points[0].position + rand_offset
)
dcs_group.add_waypoint(target_point, PointAction.OffRoad)
dcs_group.points[i + 1].tasks.append(AttackGroup(target.id))
if (
to_cp.position.distance_to_point(dcs_group.points[0].position)
<= AGGRESIVE_MOVE_DISTANCE
):
attack_point = self.conflict.theater.nearest_land_pos(
to_cp.position.random_point_within(500, 0)
)
dcs_group.add_waypoint(attack_point)
if stance != CombatStance.RETREAT:
self.add_morale_trigger(dcs_group, forward_heading)
return True
return False
def _plan_apc_atgm_action(
self,
stance: CombatStance,
dcs_group: VehicleGroup,
forward_heading: int,
to_cp: ControlPoint,
) -> bool:
"""
Handles adding the DCS tasks for APC and ATGM groups for all combat stances.
Returns True if tasking was added, returns False if the stance was not a combat stance.
"""
self._set_reform_waypoint(dcs_group, forward_heading)
if stance in [
CombatStance.AGGRESSIVE,
CombatStance.BREAKTHROUGH,
CombatStance.ELIMINATION,
]:
# APC & ATGM will never move too much forward, but will follow along any offensive
if (
to_cp.position.distance_to_point(dcs_group.points[0].position)
<= AGGRESIVE_MOVE_DISTANCE
):
attack_point = self.conflict.theater.nearest_land_pos(
to_cp.position.random_point_within(500, 0)
)
else:
attack_point = self.find_offensive_point(
dcs_group, forward_heading, AGGRESIVE_MOVE_DISTANCE
)
dcs_group.add_waypoint(attack_point, PointAction.OffRoad)
if stance != CombatStance.RETREAT:
self.add_morale_trigger(dcs_group, forward_heading)
return True
return False
def plan_action_for_groups(
self,
stance: CombatStance,
ally_groups: List[Tuple[VehicleGroup, CombatGroup]],
enemy_groups: List[Tuple[VehicleGroup, CombatGroup]],
forward_heading: int,
from_cp: ControlPoint,
to_cp: ControlPoint,
) -> None:
if not self.game.settings.perf_moving_units:
return
for dcs_group, group in ally_groups:
if hasattr(group.units[0], "eplrs") and group.units[0].eplrs:
dcs_group.points[0].tasks.append(EPLRS(dcs_group.id))
if group.role == CombatGroupRole.ARTILLERY:
if self.game.settings.perf_artillery:
target = self.get_artillery_target_in_range(
dcs_group, group, enemy_groups
)
if target is not None:
self._plan_artillery_action(
stance, group, dcs_group, forward_heading, target
)
elif group.role in [CombatGroupRole.TANK, CombatGroupRole.IFV]:
self._plan_tank_ifv_action(
stance, enemy_groups, dcs_group, forward_heading, to_cp
)
elif group.role in [CombatGroupRole.APC, CombatGroupRole.ATGM]:
self._plan_apc_atgm_action(stance, dcs_group, forward_heading, to_cp)
if stance == CombatStance.RETREAT:
# In retreat mode, the units will fall back
# If the ally base is close enough, the units will even regroup there
if (
from_cp.position.distance_to_point(dcs_group.points[0].position)
<= RETREAT_DISTANCE
):
retreat_point = from_cp.position.random_point_within(500, 250)
else:
retreat_point = self.find_retreat_point(dcs_group, forward_heading)
reposition_point = retreat_point.point_from_heading(
forward_heading, 10
) # Another point to make the unit face the enemy
dcs_group.add_waypoint(retreat_point, PointAction.OffRoad)
dcs_group.add_waypoint(reposition_point, PointAction.OffRoad)
def add_morale_trigger(self, dcs_group: VehicleGroup, forward_heading: int) -> None:
"""
This add a trigger to manage units fleeing whenever their group is hit hard, or being engaged by CAS
"""
if len(dcs_group.units) == 1:
return
# Units should hold position on last waypoint
dcs_group.points[len(dcs_group.points) - 1].tasks.append(Hold())
# Force unit heading
for unit in dcs_group.units:
unit.heading = forward_heading
dcs_group.manualHeading = True
# We add a new retreat waypoint
dcs_group.add_waypoint(
self.find_retreat_point(
dcs_group, forward_heading, (int)(RETREAT_DISTANCE / 8)
),
PointAction.OffRoad,
)
# Fallback task
fallback = ControlledTask(GoToWaypoint(to_index=len(dcs_group.points)))
fallback.enabled = False
dcs_group.add_trigger_action(Hold())
dcs_group.add_trigger_action(fallback)
# Create trigger
fallback = TriggerOnce(Event.NoEvent, "Morale manager #" + str(dcs_group.id))
# Usually more than 50% casualties = RETREAT
fallback.add_condition(GroupLifeLess(dcs_group.id, random.randint(51, 76)))
# Do retreat to the configured retreat waypoint
fallback.add_action(AITaskPush(dcs_group.id, len(dcs_group.tasks)))
self.mission.triggerrules.triggers.append(fallback)
def find_retreat_point(
self,
dcs_group: VehicleGroup,
frontline_heading: int,
distance: int = RETREAT_DISTANCE,
) -> Point:
"""
Find a point to retreat to
:param dcs_group: DCS mission group we are searching a retreat point for
:param frontline_heading: Heading of the frontline
:return: dcs.mapping.Point object with the desired position
"""
desired_point = dcs_group.points[0].position.point_from_heading(
heading_sum(frontline_heading, +180), distance
)
if self.conflict.theater.is_on_land(desired_point):
return desired_point
return self.conflict.theater.nearest_land_pos(desired_point)
def find_offensive_point(
self, dcs_group: VehicleGroup, frontline_heading: int, distance: int
) -> Point:
"""
Find a point to attack
:param dcs_group: DCS mission group we are searching an attack point for
:param frontline_heading: Heading of the frontline
:param distance: Distance of the offensive (how far unit should move)
:return: dcs.mapping.Point object with the desired position
"""
desired_point = dcs_group.points[0].position.point_from_heading(
frontline_heading, distance
)
if self.conflict.theater.is_on_land(desired_point):
return desired_point
return self.conflict.theater.nearest_land_pos(desired_point)
@staticmethod
def find_n_nearest_enemy_groups(
player_group: VehicleGroup,
enemy_groups: List[Tuple[VehicleGroup, CombatGroup]],
n: int,
) -> List[VehicleGroup]:
"""
Return the nearest enemy group for the player group
@param group Group for which we should find the nearest ennemies
@param enemy_groups Potential enemy groups
@param n number of nearby groups to take
"""
targets = [] # type: List[Optional[VehicleGroup]]
sorted_list = sorted(
enemy_groups,
key=lambda group: player_group.points[0].position.distance_to_point(
group[0].points[0].position
),
)
for i in range(n):
# TODO: Is this supposed to return no groups if enemy_groups is less than n?
if len(sorted_list) <= i:
break
else:
targets.append(sorted_list[i][0])
return targets
@staticmethod
def find_nearest_enemy_group(
player_group: VehicleGroup, enemy_groups: List[Tuple[VehicleGroup, CombatGroup]]
) -> Optional[VehicleGroup]:
"""
Search the enemy groups for a potential target suitable to armored assault
@param group Group for which we should find the nearest ennemy
@param enemy_groups Potential enemy groups
"""
min_distance = 99999999
target = None
for dcs_group, _ in enemy_groups:
dist = player_group.points[0].position.distance_to_point(
dcs_group.points[0].position
)
if dist < min_distance:
min_distance = dist
target = dcs_group
return target
@staticmethod
def get_artillery_target_in_range(
dcs_group: VehicleGroup,
group: CombatGroup,
enemy_groups: List[Tuple[VehicleGroup, CombatGroup]],
) -> Optional[Point]:
"""
Search the enemy groups for a potential target suitable to an artillery unit
"""
# TODO: Update to return a list of groups instead of a single point
rng = group.units[0].threat_range
if not enemy_groups:
return None
for _ in range(10):
potential_target = random.choice(enemy_groups)[0]
distance_to_target = dcs_group.points[0].position.distance_to_point(
potential_target.points[0].position
)
if distance_to_target < rng:
return potential_target.points[0].position
return None
@staticmethod
def get_artilery_group_distance_from_frontline(group: CombatGroup) -> int:
"""
For artilery group, decide the distance from frontline with the range of the unit
"""
rg = group.units[0].threat_range - 7500
if rg > DISTANCE_FROM_FRONTLINE[CombatGroupRole.ARTILLERY][1]:
rg = random.randint(
DISTANCE_FROM_FRONTLINE[CombatGroupRole.ARTILLERY][0],
DISTANCE_FROM_FRONTLINE[CombatGroupRole.ARTILLERY][1],
)
elif rg < DISTANCE_FROM_FRONTLINE[CombatGroupRole.ARTILLERY][1]:
rg = random.randint(
DISTANCE_FROM_FRONTLINE[CombatGroupRole.TANK][0],
DISTANCE_FROM_FRONTLINE[CombatGroupRole.TANK][1],
)
return rg
def get_valid_position_for_group(
self,
conflict_position: Point,
combat_width: int,
distance_from_frontline: int,
heading: int,
spawn_heading: int,
):
shifted = conflict_position.point_from_heading(
heading, random.randint(0, combat_width)
)
desired_point = shifted.point_from_heading(
spawn_heading, distance_from_frontline
)
return Conflict.find_ground_position(
desired_point, combat_width, heading, self.conflict.theater
)
def _generate_groups(
self,
groups: List[CombatGroup],
frontline_vector: Tuple[Point, int, int],
is_player: bool,
) -> List[Tuple[VehicleGroup, CombatGroup]]:
"""Finds valid positions for planned groups and generates a pydcs group for them"""
positioned_groups = []
position, heading, combat_width = frontline_vector
spawn_heading = (
int(heading_sum(heading, -90))
if is_player
else int(heading_sum(heading, 90))
)
country = self.game.player_country if is_player else self.game.enemy_country
for group in groups:
if group.role == CombatGroupRole.ARTILLERY:
distance_from_frontline = (
self.get_artilery_group_distance_from_frontline(group)
)
else:
distance_from_frontline = random.randint(
DISTANCE_FROM_FRONTLINE[group.role][0],
DISTANCE_FROM_FRONTLINE[group.role][1],
)
final_position = self.get_valid_position_for_group(
position, combat_width, distance_from_frontline, heading, spawn_heading
)
if final_position is not None:
g = self._generate_group(
self.mission.country(country),
group.units[0],
len(group.units),
final_position,
distance_from_frontline,
heading=opposite_heading(spawn_heading),
)
if is_player:
g.set_skill(self.game.settings.player_skill)
else:
g.set_skill(self.game.settings.enemy_vehicle_skill)
positioned_groups.append((g, group))
if group.role in [CombatGroupRole.APC, CombatGroupRole.IFV]:
self.gen_infantry_group_for_group(
g,
is_player,
self.mission.country(country),
opposite_heading(spawn_heading),
)
else:
logging.warning(f"Unable to get valid position for {group}")
return positioned_groups
def _generate_group(
self,
side: Country,
unit: VehicleType,
count: int,
at: Point,
distance_from_frontline,
move_formation: PointAction = PointAction.OffRoad,
heading=0,
) -> VehicleGroup:
if side == self.conflict.attackers_country:
cp = self.conflict.blue_cp
else:
cp = self.conflict.red_cp
logging.info("armorgen: {} for {}".format(unit, side.id))
group = self.mission.vehicle_group(
side,
namegen.next_unit_name(side, cp.id, unit),
unit,
position=at,
group_size=count,
heading=heading,
move_formation=move_formation,
)
self.unit_map.add_front_line_units(group, cp)
for c in range(count):
vehicle: Vehicle = group.units[c]
vehicle.player_can_drive = True
return group