def _portion_of_fleet_needed_here(self):
"""Calculate the portion of the fleet needed in target system considering enemy forces."""
# TODO check rating against planets
if assertion_fails(self.type in COMBAT_MISSION_TYPES, msg=str(self)):
return 0
if assertion_fails(self.target and self.target.id != INVALID_ID, msg=str(self)):
return 0
system_id = self.target.id
aistate = get_aistate()
local_defenses = MilitaryAI.get_my_defense_rating_in_system(system_id)
potential_threat = CombatRatingsAI.combine_ratings(
MilitaryAI.get_system_local_threat(system_id),
MilitaryAI.get_system_neighbor_threat(system_id)
)
universe = fo.getUniverse()
system = universe.getSystem(system_id)
# tally planetary defenses
total_defense = total_shields = 0
for planet_id in system.planetIDs:
planet = universe.getPlanet(planet_id)
total_defense += planet.currentMeterValue(fo.meterType.defense)
total_shields += planet.currentMeterValue(fo.meterType.shield)
planetary_ratings = total_defense * (total_shields + total_defense)
potential_threat += planetary_ratings # TODO: rewrite to return min rating vs planets as well
# consider safety factor just once here rather than everywhere below
safety_factor = aistate.character.military_safety_factor()
potential_threat *= safety_factor
fleet_rating = CombatRatingsAI.get_fleet_rating(self.fleet.id)
return CombatRatingsAI.rating_needed(potential_threat, local_defenses) / float(fleet_rating)
def issue_fleet_orders(self):
"""issues AIFleetOrders which can be issued in system and moves to next one if is possible"""
# TODO: priority
order_completed = True
debug("\nChecking orders for fleet %s (on turn %d), with mission type %s and target %s",
self.fleet.get_object(), fo.currentTurn(), self.type or 'No mission', self.target or 'No Target')
if MissionType.INVASION == self.type:
self._check_retarget_invasion()
just_issued_move_order = False
last_move_target_id = INVALID_ID
# Note: the following abort check somewhat assumes only one major mission type
for fleet_order in self.orders:
if (isinstance(fleet_order, (OrderColonize, OrderOutpost, OrderInvade)) and
self._check_abort_mission(fleet_order)):
return
aistate = get_aistate()
for fleet_order in self.orders:
if just_issued_move_order and self.fleet.get_object().systemID != last_move_target_id:
# having just issued a move order, we will normally stop issuing orders this turn, except that if there
# are consecutive move orders we will consider moving through the first destination rather than stopping
# Without the below noinspection directive, PyCharm is concerned about the 2nd part of the test
# noinspection PyTypeChecker
if (not isinstance(fleet_order, OrderMove) or
self.need_to_pause_movement(last_move_target_id, fleet_order)):
break
debug("Checking order: %s" % fleet_order)
self.check_mergers(context=str(fleet_order))
if fleet_order.can_issue_order(verbose=False):
# only move if all other orders completed
if isinstance(fleet_order, OrderMove) and order_completed:
debug("Issuing fleet order %s" % fleet_order)
fleet_order.issue_order()
just_issued_move_order = True
last_move_target_id = fleet_order.target.id
elif not isinstance(fleet_order, OrderMove):
debug("Issuing fleet order %s" % fleet_order)
fleet_order.issue_order()
else:
debug("NOT issuing (even though can_issue) fleet order %s" % fleet_order)
status_words = tuple(["not", ""][_s] for _s in [fleet_order.order_issued, fleet_order.executed])
debug("Order %s issued and %s fully executed." % status_words)
if not fleet_order.executed:
order_completed = False
else: # check that we're not held up by a Big Monster
if fleet_order.order_issued:
# A previously issued order that wasn't instantly executed must have had cirumstances change so that
# the order can't currently be reissued (or perhaps simply a savegame has been reloaded on the same
# turn the order was issued).
if not fleet_order.executed:
order_completed = False
# Go on to the next order.
continue
debug("CAN'T issue fleet order %s because:" % fleet_order)
fleet_order.can_issue_order(verbose=True)
if isinstance(fleet_order, OrderMove):
this_system_id = fleet_order.target.id
this_status = aistate.systemStatus.setdefault(this_system_id, {})
threat_threshold = fo.currentTurn() * MilitaryAI.cur_best_mil_ship_rating() / 4.0
if this_status.get('monsterThreat', 0) > threat_threshold:
# if this move order is not this mil fleet's final destination, and blocked by Big Monster,
# release and hope for more effective reassignment
if (self.type not in (MissionType.MILITARY, MissionType.SECURE) or
fleet_order != self.orders[-1]):
debug("Aborting mission due to being blocked by Big Monster at system %d, threat %d" % (
this_system_id, aistate.systemStatus[this_system_id]['monsterThreat']))
debug("Full set of orders were:")
for this_order in self.orders:
debug(" - %s" % this_order)
self.clear_fleet_orders()
self.clear_target()
return
break # do not order the next order until this one is finished.
else: # went through entire order list
if order_completed:
debug("Final order is completed")
orders = self.orders
last_order = orders[-1] if orders else None
universe = fo.getUniverse()
if last_order and isinstance(last_order, OrderColonize):
planet = universe.getPlanet(last_order.target.id)
sys_partial_vis_turn = get_partial_visibility_turn(planet.systemID)
planet_partial_vis_turn = get_partial_visibility_turn(planet.id)
if (planet_partial_vis_turn == sys_partial_vis_turn and
not planet.initialMeterValue(fo.meterType.population)):
warn("Fleet %d has tentatively completed its "
"colonize mission but will wait to confirm population." % self.fleet.id)
debug(" Order details are %s" % last_order)
debug(" Order is valid: %s; issued: %s; executed: %s" % (
last_order.is_valid(), last_order.order_issued, last_order.executed))
if not last_order.is_valid():
source_target = last_order.fleet
target_target = last_order.target
debug(" source target validity: %s; target target validity: %s " % (
bool(source_target), bool(target_target)))
return # colonize order must not have completed yet
clear_all = True
last_sys_target = INVALID_ID
if last_order and isinstance(last_order, OrderMilitary):
last_sys_target = last_order.target.id
# not doing this until decide a way to release from a SECURE mission
# if (MissionType.SECURE == self.type) or
secure_targets = set(AIstate.colonyTargetedSystemIDs +
AIstate.outpostTargetedSystemIDs +
AIstate.invasionTargetedSystemIDs)
if last_sys_target in secure_targets: # consider a secure mission
if last_sys_target in AIstate.colonyTargetedSystemIDs:
secure_type = "Colony"
elif last_sys_target in AIstate.outpostTargetedSystemIDs:
secure_type = "Outpost"
elif last_sys_target in AIstate.invasionTargetedSystemIDs:
secure_type = "Invasion"
else:
secure_type = "Unidentified"
debug("Fleet %d has completed initial stage of its mission "
"to secure system %d (targeted for %s), "
"may release a portion of ships" % (self.fleet.id, last_sys_target, secure_type))
clear_all = False
# for PROTECT_REGION missions, only release fleet if no more threat
if self.type == MissionType.PROTECT_REGION:
# use military logic code below to determine if can release
# any or even all of the ships.
clear_all = False
last_sys_target = self.target.id
debug("Check if PROTECT_REGION mission with target %d is finished.", last_sys_target)
fleet_id = self.fleet.id
if clear_all:
if orders:
debug("Fleet %d has completed its mission; clearing all orders and targets." % self.fleet.id)
debug("Full set of orders were:")
for this_order in orders:
debug("\t\t %s" % this_order)
self.clear_fleet_orders()
self.clear_target()
if aistate.get_fleet_role(fleet_id) in (MissionType.MILITARY, MissionType.SECURE):
allocations = MilitaryAI.get_military_fleets(mil_fleets_ids=[fleet_id],
try_reset=False,
thisround="Fleet %d Reassignment" % fleet_id)
if allocations:
MilitaryAI.assign_military_fleets_to_systems(use_fleet_id_list=[fleet_id],
allocations=allocations)
else: # no orders
debug("No Current Orders")
else:
potential_threat = CombatRatingsAI.combine_ratings(
MilitaryAI.get_system_local_threat(last_sys_target),
MilitaryAI.get_system_neighbor_threat(last_sys_target)
)
threat_present = potential_threat > 0
debug("Fleet threat present? %s", threat_present)
target_system = universe.getSystem(last_sys_target)
if not threat_present and target_system:
for pid in target_system.planetIDs:
planet = universe.getPlanet(pid)
if (planet and
planet.owner != fo.empireID() and
planet.currentMeterValue(fo.meterType.maxDefense) > 0):
debug("Found local planetary threat: %s", planet)
threat_present = True
break
if not threat_present:
debug("No current threat in target system; releasing a portion of ships.")
# at least first stage of current task is done;
# release extra ships for potential other deployments
new_fleets = FleetUtilsAI.split_fleet(self.fleet.id)
if self.type == MissionType.PROTECT_REGION:
self.clear_fleet_orders()
self.clear_target()
new_fleets.append(self.fleet.id)
else:
debug("Threat remains in target system; Considering to release some ships.")
new_fleets = []
fleet_portion_to_remain = self._portion_of_fleet_needed_here()
if fleet_portion_to_remain > 1:
debug("Can not release fleet yet due to large threat.")
elif fleet_portion_to_remain > 0:
debug("Not all ships are needed here - considering releasing a few")
fleet_remaining_rating = CombatRatingsAI.get_fleet_rating(fleet_id)
fleet_min_rating = fleet_portion_to_remain * fleet_remaining_rating
debug("Starting rating: %.1f, Target rating: %.1f",
fleet_remaining_rating, fleet_min_rating)
allowance = CombatRatingsAI.rating_needed(fleet_remaining_rating, fleet_min_rating)
debug("May release ships with total rating of %.1f", allowance)
ship_ids = list(self.fleet.get_object().shipIDs)
for ship_id in ship_ids:
ship_rating = CombatRatingsAI.get_ship_rating(ship_id)
debug("Considering to release ship %d with rating %.1f", ship_id, ship_rating)
if ship_rating > allowance:
debug("Remaining rating insufficient. Not released.")
continue
debug("Splitting from fleet.")
new_fleet_id = FleetUtilsAI.split_ship_from_fleet(fleet_id, ship_id)
if assertion_fails(new_fleet_id and new_fleet_id != INVALID_ID):
break
new_fleets.append(new_fleet_id)
fleet_remaining_rating = CombatRatingsAI.rating_difference(
fleet_remaining_rating, ship_rating)
allowance = CombatRatingsAI.rating_difference(
fleet_remaining_rating, fleet_min_rating)
debug("Remaining fleet rating: %.1f - Allowance: %.1f",
fleet_remaining_rating, allowance)
if new_fleets:
aistate.get_fleet_role(fleet_id, force_new=True)
aistate.update_fleet_rating(fleet_id)
aistate.ensure_have_fleet_missions(new_fleets)
else:
debug("Planetary defenses are deemed sufficient. Release fleet.")
new_fleets = FleetUtilsAI.split_fleet(self.fleet.id)
new_military_fleets = []
for fleet_id in new_fleets:
if aistate.get_fleet_role(fleet_id) in COMBAT_MISSION_TYPES:
new_military_fleets.append(fleet_id)
allocations = []
if new_military_fleets:
allocations = MilitaryAI.get_military_fleets(
mil_fleets_ids=new_military_fleets,
try_reset=False,
thisround="Fleet Reassignment %s" % new_military_fleets
)
if allocations:
MilitaryAI.assign_military_fleets_to_systems(use_fleet_id_list=new_military_fleets,
allocations=allocations)
