def _calculate_colonisation_priority():
"""Calculates the demand for colony ships by colonisable planets."""
global allottedColonyTargets
aistate = get_aistate()
enemies_sighted = aistate.misc.get('enemies_sighted', {})
galaxy_is_sparse = ColonisationAI.galaxy_is_sparse()
total_pp = fo.getEmpire().productionPoints
num_colonies = get_number_of_colonies()
colony_growth_barrier = aistate.character.max_number_colonies()
if num_colonies > colony_growth_barrier:
return 0.0
colony_cost, turns_to_build = (ColonisationAI.colony_pod_cost_turns())
mil_prio = aistate.get_priority(PriorityType.PRODUCTION_MILITARY)
allotted_portion = ([[[0.6, 0.8], [0.3, 0.4]],
[[0.8, 0.9],
[0.4, 0.6]]][galaxy_is_sparse][any(enemies_sighted)])
allotted_portion = aistate.character.preferred_colonization_portion(
allotted_portion)
# if ( get_aistate().get_priority(AIPriorityType.PRIORITY_PRODUCTION_COLONISATION)
# > 2 * get_aistate().get_priority(AIPriorityType.PRIORITY_PRODUCTION_MILITARY)):
# allotted_portion *= 1.5
if mil_prio < 100:
allotted_portion *= 2
elif mil_prio < 200:
allotted_portion *= 1.5
elif fo.currentTurn() > 100:
allotted_portion *= 0.75**(num_colonies / 10.0)
# allottedColonyTargets = 1+ int(fo.currentTurn()/50)
allottedColonyTargets = 1 + int(
total_pp * turns_to_build * allotted_portion / colony_cost)
outpost_prio = aistate.get_priority(PriorityType.PRODUCTION_OUTPOST)
# if have no SP_SLY, and have any outposts to build, don't build colony ships TODO: make more complex assessment
colonizers = list(ColonisationAI.empire_colonizers)
if "SP_SLY" not in colonizers and outpost_prio > 0:
return 0.0
min_score = ColonisationAI.MINIMUM_COLONY_SCORE
minimal_top = min_score + 2 # one more than the conditional floor set by ColonisationAI.revise_threat_factor()
minimal_opportunities = [
species_name
for (_, (score, species_name)) in aistate.colonisablePlanetIDs.items()
if min_score < score <= minimal_top
]
decent_opportunities = [
species_name
for (_, (score, species_name)) in aistate.colonisablePlanetIDs.items()
if score > minimal_top
]
minimal_planet_factor = 0.2 # count them for something, but not much
num_colonisable_planet_ids = len(
decent_opportunities
) + minimal_planet_factor * len(minimal_opportunities)
if num_colonisable_planet_ids == 0:
return 1
colony_ship_ids = FleetUtilsAI.get_empire_fleet_ids_by_role(
MissionType.COLONISATION)
num_colony_ships = len(
FleetUtilsAI.extract_fleet_ids_without_mission_types(colony_ship_ids))
colonisation_priority = 60 * (1.0 + num_colonisable_planet_ids -
num_colony_ships) / (
num_colonisable_planet_ids + 1)
if colonizers == ["SP_SLY"]:
colonisation_priority *= 2
elif "SP_SLY" in colonizers:
colony_opportunities = minimal_opportunities + decent_opportunities
colonisation_priority *= (1.0 + colony_opportunities.count("SP_SLY")
) / len(colony_opportunities)
# print
# print "Number of Colony Ships : " + str(num_colony_ships)
# print "Number of Colonisable planets : " + str(num_colonisable_planet_ids)
# print "Priority for colony ships : " + str(colonisation_priority)
if colonisation_priority < 1:
return 0
return colonisation_priority
