def compile_home_system_list(num_home_systems, systems):
"""
Compiles a list with a requested number of home systems.
"""
# if the list of systems to choose home systems from is empty, report an error and return empty list
if not systems:
util.report_error("Python generate_home_system_list: no systems to choose from")
return []
# calculate an initial minimal number of jumps that the home systems should be apart,
# based on the total number of systems to choose from and the requested number of home systems
min_jumps = max(int(float(len(systems)) / float(num_home_systems * 2)), 5)
# try to find the home systems, decrease the min jumps until enough systems can be found, or the min jump distance
# gets reduced to 0 (meaning we don't have enough systems to choose from at all)
while min_jumps > 0:
print "Trying to find", num_home_systems, "home systems that are at least", min_jumps, "jumps apart"
# try to find home systems...
home_systems = find_systems_with_min_jumps_between(num_home_systems, systems, min_jumps)
# ...check if we got enough...
if len(home_systems) >= num_home_systems:
# ...yes, we got what we need, so let's break out of the loop
break
print "Home system min jump conflict: %d systems and %d empires, tried %d min jump and failed"\
% (len(systems), num_home_systems, min_jumps)
# ...no, decrease the min jump distance and try again
min_jumps -= 1
# check if the loop above delivered a list with enough home systems, or if it exited because the min jump distance
# has been decreased to 0 without finding enough systems
# in that case, our galaxy obviously is too crowded, report an error and return an empty list
if len(home_systems) < num_home_systems:
util.report_error("Python generate_home_system_list: requested %d homeworlds in a galaxy with %d systems"
% (num_home_systems, len(systems)))
return []
# make sure all our home systems have a "real" star (that is, a star that is not a neutron star, black hole,
# or even no star at all) and at least one planet in it
for home_system in home_systems:
# if this home system has no "real" star, change star type to a randomly selected "real" star
if fo.sys_get_star_type(home_system) not in starsystems.star_types_real:
star_type = random.choice(starsystems.star_types_real)
print "Home system", home_system, "has star type", fo.sys_get_star_type(home_system),\
", changing that to", star_type
fo.sys_set_star_type(home_system, star_type)
# if this home system has no planets, create one in a random orbit
# we take random values for type and size, as these will be set to suitable values later
if not fo.sys_get_planets(home_system):
print "Home system", home_system, "has no planets, adding one"
planet = fo.create_planet(random.choice(planets.planet_sizes_real),
random.choice(planets.planet_types_real),
home_system, random.randint(0, fo.sys_get_num_orbits(home_system) - 1), "")
# if we couldn't create the planet, report an error and return an empty list
if planet == fo.invalid_object():
util.report_error("Python generate_home_system_list: couldn't create planet in home system")
return []
return home_systems
def generate_systems(pos_list, gsd):
"""
Generates and populates star systems at all positions in specified list.
"""
sys_list = []
for position in pos_list:
star_type = pick_star_type(gsd.age)
system = fo.create_system(star_type, "", position.x, position.y)
if system == fo.invalid_object():
# create system failed, report an error and try to continue with next position
util.report_error("Python generate_systems: create system at position (%f, %f) failed"
% (position.x, position.y))
continue
sys_list.append(system)
for orbit in range(0, fo.sys_get_num_orbits(system) - 1):
# check for each orbit if a planet shall be created by determining planet size
planet_size = planets.calc_planet_size(star_type, orbit, gsd.planetDensity, gsd.shape)
if planet_size in planets.planet_sizes:
# ok, we want a planet, determine planet type and generate the planet
planet_type = planets.calc_planet_type(star_type, orbit, planet_size)
if fo.create_planet(planet_size, planet_type, system, orbit, "") == fo.invalid_object():
# create planet failed, report an error and try to continue with next orbit
util.report_error("Python generate_systems: create planet in system %d failed" % system)
return sys_list
def generate_monsters(monster_freq, systems):
"""
Adds space monsters to systems.
"""
# first, calculate the basic chance for monster generation in a system
# based on the monster frequency that has been passed
# get the corresponding value for the specified monster frequency from the universe tables
inverse_monster_chance = fo.monster_frequency(monster_freq)
# as the value in the universe table is higher for a lower frequency, we have to invert it
# exception: a value of 0 means no monsters, in this case return immediately
if inverse_monster_chance <= 0:
return
basic_chance = 1.0 / float(inverse_monster_chance)
print "Default monster spawn chance:", basic_chance
expectation_tally = 0.0
actual_tally = 0
# get all monster fleets that have a spawn rate and limit both > 0 and at least one monster ship design in it
# (a monster fleet with no monsters in it is pointless) and store them with a spawn counter in a dict
# this counter will be set to the spawn limit initially and decreased every time the monster fleet is spawned
fleet_plans = {fp: fp.spawn_limit() for fp in fo.load_monster_fleet_plan_list("space_monster_spawn_fleets.txt")
if fp.spawn_rate() > 0.0 and fp.spawn_limit() > 0 and fp.ship_designs()}
# map nests to monsters for ease of reporting
nest_name_map = dict(zip(["KRAKEN_NEST_SPECIAL", "SNOWFLAKE_NEST_SPECIAL", "JUGGERNAUT_NEST_SPECIAL"], ["SM_KRAKEN_1", "SM_SNOWFLAKE_1", "SM_JUGGERNAUT_1"]))
tracked_plan_tries = {name: 0 for name in nest_name_map.values()}
tracked_plan_counts = {name: 0 for name in nest_name_map.values()}
tracked_plan_valid_locations = {fp: 0 for fp, limit in fleet_plans.iteritems() if fp.name() in tracked_plan_counts}
tracked_nest_valid_locations = {nest: 0 for nest in nest_name_map}
if not fleet_plans:
return
# dump a list of all monster fleets meeting these conditions and their properties to the log
print "Monster fleets available for generation at game start:"
for fleet_plan in fleet_plans:
print "...", fleet_plan.name(), ": spawn rate", fleet_plan.spawn_rate(),\
"/ spawn limit", fleet_plan.spawn_limit(),\
"/ effective chance", basic_chance * fleet_plan.spawn_rate(),\
"/ can be spawned at", len([s for s in systems if fleet_plan.location(s)]), "systems"
if fleet_plan.name() in nest_name_map.values():
statistics.tracked_monsters_chance[fleet_plan.name()] = basic_chance * fleet_plan.spawn_rate()
# for each system in the list that has been passed to this function, find a monster fleet that can be spawned at
# the system and which hasn't already been added too many times, then attempt to add that monster fleet by
# testing the spawn rate chance
for system in systems:
# collect info for tracked monster nest valid locations
for planet in fo.sys_get_planets(system):
for nest in tracked_nest_valid_locations:
#print "\t tracked monster check planet: %d size: %s for nest: %20s | result: %s" % (planet, fo.planet_get_size(planet), nest, fo.special_location(nest, planet))
if fo.special_location(nest, planet):
tracked_nest_valid_locations[nest] += 1
# collect info for tracked monster valid locations
for fp in tracked_plan_valid_locations:
if fp.location(system):
tracked_plan_valid_locations[fp] += 1
# filter out all monster fleets whose location condition allows this system and whose counter hasn't reached 0
suitable_fleet_plans = [fp for fp, counter in fleet_plans.iteritems() if counter and fp.location(system)]
# if there are no suitable monster fleets for this system, continue with the next
if not suitable_fleet_plans:
continue
# randomly select one monster fleet out of the suitable ones and then test if we want to add it to this system
# by making a roll against the basic chance multiplied by the spawn rate of this monster fleet
expectation_tally += basic_chance * sum([fp.spawn_rate() for fp in suitable_fleet_plans]) / len(suitable_fleet_plans)
fleet_plan = random.choice(suitable_fleet_plans)
if fleet_plan.name() in tracked_plan_tries:
tracked_plan_tries[fleet_plan.name()] += 1
if random.random() > basic_chance * fleet_plan.spawn_rate():
print "\t\t At system %4d rejected monster fleet %s from %d suitable fleets" % (system, fleet_plan.name(), len(suitable_fleet_plans))
# no, test failed, continue with the next system
continue
actual_tally += 1
if fleet_plan.name() in tracked_plan_counts:
tracked_plan_counts[fleet_plan.name()] += 1
# all prerequisites and the test have been met, now spawn this monster fleet in this system
print "Spawn", fleet_plan.name(), "at", fo.get_name(system)
# decrement counter for this monster fleet
fleet_plans[fleet_plan] -= 1
# create monster fleet
monster_fleet = fo.create_monster_fleet(system)
# if fleet creation fails, report an error and try to continue with next system
if monster_fleet == fo.invalid_object():
util.report_error("Python generate_monsters: unable to create new monster fleet %s" % fleet_plan.name())
continue
# add monsters to fleet
for design in fleet_plan.ship_designs():
# create monster, if creation fails, report an error and try to continue with the next design
if fo.create_monster(design, monster_fleet) == fo.invalid_object():
util.report_error("Python generate_monsters: unable to create monster %s" % design)
print "Actual # monster fleets placed: %d; Total Placement Expectation: %.1f" % (actual_tally, expectation_tally)
# finally, compile some statistics to be dumped to the log later
statistics.monsters_summary = [(fp.name(), fp.spawn_limit() - counter) for fp, counter in fleet_plans.iteritems()]
statistics.tracked_monsters_tries.update(tracked_plan_tries)
statistics.tracked_monsters_summary.update(tracked_plan_counts)
statistics.tracked_monsters_location_summary.update([(fp.name(), count) for fp, count in tracked_plan_valid_locations.iteritems()])
statistics.tracked_nest_location_summary.update([(nest_name_map[nest], count) for nest, count in tracked_nest_valid_locations.items()])
def setup_empire(empire, empire_name, home_system, starting_species, player_name):
"""
Sets up various aspects of an empire, like empire name, homeworld, etc.
"""
# set empire name, if no one is given, pick one randomly
if not empire_name:
print "No empire name set for player", player_name, ", picking one randomly"
empire_name = next(empire_name_generator)
fo.empire_set_name(empire, empire_name)
print "Empire name for player", player_name, "is", empire_name
# check starting species, if no one is given, pick one randomly
if not starting_species:
print "No starting species set for player", player_name, ", picking one randomly"
starting_species = next(starting_species_pool)
print "Starting species for player", player_name, "is", starting_species
statistics.empire_species[starting_species] += 1
# pick a planet from the specified home system as homeworld
planet_list = fo.sys_get_planets(home_system)
# if the system is empty, report an error and return false, indicating failure
if not planet_list:
util.report_error("Python setup_empire: got home system with no planets")
return False
homeworld = random.choice(planet_list)
# set selected planet as empire homeworld with selected starting species
fo.empire_set_homeworld(empire, homeworld, starting_species)
# set homeworld focus
# check if the preferred focus for the starting species is among
# the foci available on the homeworld planet
available_foci = fo.planet_available_foci(homeworld)
preferred_focus = fo.species_preferred_focus(starting_species)
if preferred_focus in available_foci:
# if yes, set the homeworld focus to the preferred focus
print "Player", player_name, ": setting preferred focus", preferred_focus, "on homeworld"
fo.planet_set_focus(homeworld, preferred_focus)
elif len(available_foci) > 0:
# if no, and there is at least one available focus,
# just take the first of the list
if preferred_focus == "":
print "Player", player_name, ": starting species", starting_species, "has no preferred focus, using",\
available_foci[0], "instead"
else:
print "Player", player_name, ": preferred focus", preferred_focus, "for starting species",\
starting_species, "not available on homeworld, using", available_foci[0], "instead"
fo.planet_set_focus(homeworld, available_foci[0])
else:
# if no focus is available on the homeworld, don't set any focus
print "Player", player_name, ": no available foci on homeworld for starting species", starting_species
# give homeworld starting buildings
# use the list provided in starting_buildings.txt
print "Player", player_name, ": add starting buildings to homeworld"
for building in util.load_string_list("../starting_buildings.txt"):
fo.create_building(building, homeworld, empire)
# unlock starting techs, buildings, hulls, ship parts, etc.
# use content file preunlocked_items.txt
print "Player", player_name, ": add unlocked items"
for item in fo.load_item_spec_list("preunlocked_items.txt"):
fo.empire_unlock_item(empire, item.type, item.name)
# add premade ship designs to empire
print "Player", player_name, ": add premade ship designs"
for ship_design in fo.design_get_premade_list():
fo.empire_add_ship_design(empire, ship_design)
# add starting fleets to empire
# use content file starting_fleets.txt
print "Player", player_name, ": add starting fleets"
fleet_plans = fo.load_fleet_plan_list("starting_fleets.txt")
for fleet_plan in fleet_plans:
# first, create the fleet
fleet = fo.create_fleet(fleet_plan.name(), home_system, empire)
# if the fleet couldn't be created, report an error and try to continue with the next fleet plan
if fleet == fo.invalid_object():
util.report_error("Python setup empire: couldn't create fleet %s" % fleet_plan.name())
continue
# second, iterate over the list of ship design names in the fleet plan
for ship_design in fleet_plan.ship_designs():
# create a ship in the fleet
# if the ship couldn't be created, report an error and try to continue with the next ship design
if fo.create_ship("", ship_design, starting_species, fleet) == fo.invalid_object():
util.report_error("Python setup empire: couldn't create ship %s for fleet %s"
% (ship_design, fleet_plan.name()))
return True