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EntranceShuffle.py
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import random
import logging
from itertools import chain
from Fill import ShuffleError
from collections import OrderedDict
from Playthrough import Playthrough
from Region import TimeOfDay
from Rules import set_entrances_based_rules
from Entrance import Entrance
from State import State
from Item import ItemFactory
from Hints import get_hint_area
def set_all_entrances_data(world):
for type, forward_entry, *return_entry in entrance_shuffle_table:
forward_entrance = world.get_entrance(forward_entry[0])
forward_entrance.data = forward_entry[1]
forward_entrance.type = type
forward_entrance.primary = True
if type == 'Grotto':
forward_entrance.data['index'] = 0x1000 + forward_entrance.data['grotto_id']
if return_entry:
return_entry = return_entry[0]
return_entrance = world.get_entrance(return_entry[0])
return_entrance.data = return_entry[1]
return_entrance.type = type
forward_entrance.bind_two_way(return_entrance)
if type == 'Grotto':
return_entrance.data['index'] = 0x2000 + return_entrance.data['grotto_id']
def assume_entrance_pool(entrance_pool):
assumed_pool = []
for entrance in entrance_pool:
assumed_forward = entrance.assume_reachable()
if entrance.reverse != None and not entrance.world.decouple_entrances:
assumed_return = entrance.reverse.assume_reachable()
world = entrance.world
if not (world.mix_entrance_pools and (world.shuffle_overworld_entrances or world.shuffle_special_interior_entrances)):
if (entrance.type in ('Dungeon', 'Grotto', 'Grave') and entrance.reverse.name != 'Spirit Temple Lobby -> Desert Colossus From Spirit Lobby') or \
(entrance.type == 'Interior' and world.shuffle_special_interior_entrances):
assumed_return.set_rule(lambda state, **kwargs: False)
assumed_forward.bind_two_way(assumed_return)
assumed_pool.append(assumed_forward)
return assumed_pool
def build_one_way_targets(world, types_to_include, exclude=[]):
one_way_entrances = []
for pool_type in types_to_include:
one_way_entrances += world.get_shufflable_entrances(type=pool_type)
valid_one_way_entrances = list(filter(lambda entrance: entrance.name not in exclude and (entrance.shuffled or entrance.type not in ('OwlDrop', 'WarpSong', 'Spawn')), one_way_entrances))
return [entrance.get_new_target() for entrance in valid_one_way_entrances]
entrance_shuffle_table = [
('Dungeon', ('Outside Deku Tree -> Deku Tree Lobby', { 'index': 0x0000 }),
('Deku Tree Lobby -> Outside Deku Tree', { 'index': 0x0209, 'blue_warp': 0x0457 })),
('Dungeon', ('Death Mountain -> Dodongos Cavern Beginning', { 'index': 0x0004 }),
('Dodongos Cavern Beginning -> Death Mountain', { 'index': 0x0242, 'blue_warp': 0x047A })),
('Dungeon', ('Zoras Fountain -> Jabu Jabus Belly Beginning', { 'index': 0x0028 }),
('Jabu Jabus Belly Beginning -> Zoras Fountain', { 'index': 0x0221, 'blue_warp': 0x010E })),
('Dungeon', ('Forest Temple Entrance Ledge -> Forest Temple Lobby', { 'index': 0x0169 }),
('Forest Temple Lobby -> Forest Temple Entrance Ledge', { 'index': 0x0215, 'blue_warp': 0x0608 })),
('Dungeon', ('Fire Temple Entrance -> Fire Temple Lower', { 'index': 0x0165 }),
('Fire Temple Lower -> Fire Temple Entrance', { 'index': 0x024A, 'blue_warp': 0x0564 })),
('Dungeon', ('Lake Hylia -> Water Temple Lobby', { 'index': 0x0010 }),
('Water Temple Lobby -> Lake Hylia', { 'index': 0x021D, 'blue_warp': 0x060C })),
('Dungeon', ('Desert Colossus -> Spirit Temple Lobby', { 'index': 0x0082 }),
('Spirit Temple Lobby -> Desert Colossus From Spirit Lobby', { 'index': 0x01E1, 'blue_warp': 0x0610 })),
('Dungeon', ('Shadow Temple Warp Region -> Shadow Temple Entryway', { 'index': 0x0037 }),
('Shadow Temple Entryway -> Shadow Temple Warp Region', { 'index': 0x0205, 'blue_warp': 0x0580 })),
('Dungeon', ('Kakariko Village -> Bottom of the Well', { 'index': 0x0098 }),
('Bottom of the Well -> Kakariko Village', { 'index': 0x02A6 })),
('Dungeon', ('Zoras Fountain Ice Ledge -> Ice Cavern Beginning', { 'index': 0x0088 }),
('Ice Cavern Beginning -> Zoras Fountain Ice Ledge', { 'index': 0x03D4 })),
('Dungeon', ('Gerudo Fortress -> Gerudo Training Grounds Lobby', { 'index': 0x0008 }),
('Gerudo Training Grounds Lobby -> Gerudo Fortress', { 'index': 0x03A8 })),
('Interior', ('Kokiri Forest -> Mido House', { 'index': 0x0433 }),
('Mido House -> Kokiri Forest', { 'index': 0x0443 })),
('Interior', ('Kokiri Forest -> Saria House', { 'index': 0x0437 }),
('Saria House -> Kokiri Forest', { 'index': 0x0447 })),
('Interior', ('Kokiri Forest -> House of Twins', { 'index': 0x009C }),
('House of Twins -> Kokiri Forest', { 'index': 0x033C })),
('Interior', ('Kokiri Forest -> Know It All House', { 'index': 0x00C9 }),
('Know It All House -> Kokiri Forest', { 'index': 0x026A })),
('Interior', ('Kokiri Forest -> Kokiri Shop', { 'index': 0x00C1 }),
('Kokiri Shop -> Kokiri Forest', { 'index': 0x0266 })),
('Interior', ('Lake Hylia -> Lake Hylia Lab', { 'index': 0x0043 }),
('Lake Hylia Lab -> Lake Hylia', { 'index': 0x03CC })),
('Interior', ('Lake Hylia Fishing Island -> Fishing Hole', { 'index': 0x045F }),
('Fishing Hole -> Lake Hylia Fishing Island', { 'index': 0x0309 })),
('Interior', ('Gerudo Valley Far Side -> Carpenter Tent', { 'index': 0x03A0 }),
('Carpenter Tent -> Gerudo Valley Far Side', { 'index': 0x03D0 })),
('Interior', ('Castle Town Entrance -> Castle Town Rupee Room', { 'index': 0x007E }),
('Castle Town Rupee Room -> Castle Town Entrance', { 'index': 0x026E })),
('Interior', ('Castle Town -> Castle Town Mask Shop', { 'index': 0x0530 }),
('Castle Town Mask Shop -> Castle Town', { 'index': 0x01D1, 'addresses': [0xC6DA5E] })),
('Interior', ('Castle Town -> Castle Town Bombchu Bowling', { 'index': 0x0507 }),
('Castle Town Bombchu Bowling -> Castle Town', { 'index': 0x03BC })),
('Interior', ('Castle Town -> Castle Town Potion Shop', { 'index': 0x0388 }),
('Castle Town Potion Shop -> Castle Town', { 'index': 0x02A2 })),
('Interior', ('Castle Town -> Castle Town Treasure Chest Game', { 'index': 0x0063 }),
('Castle Town Treasure Chest Game -> Castle Town', { 'index': 0x01D5 })),
('Interior', ('Castle Town Back Alley -> Castle Town Bombchu Shop', { 'index': 0x0528 }),
('Castle Town Bombchu Shop -> Castle Town Back Alley', { 'index': 0x03C0 })),
('Interior', ('Castle Town Back Alley -> Castle Town Man in Green House', { 'index': 0x043B }),
('Castle Town Man in Green House -> Castle Town Back Alley', { 'index': 0x0067 })),
('Interior', ('Kakariko Village -> Carpenter Boss House', { 'index': 0x02FD }),
('Carpenter Boss House -> Kakariko Village', { 'index': 0x0349 })),
('Interior', ('Kakariko Village -> House of Skulltula', { 'index': 0x0550 }),
('House of Skulltula -> Kakariko Village', { 'index': 0x04EE })),
('Interior', ('Kakariko Village -> Impas House', { 'index': 0x039C }),
('Impas House -> Kakariko Village', { 'index': 0x0345 })),
('Interior', ('Kakariko Impa Ledge -> Impas House Back', { 'index': 0x05C8 }),
('Impas House Back -> Kakariko Impa Ledge', { 'index': 0x05DC })),
('Interior', ('Kakariko Village Backyard -> Odd Medicine Building', { 'index': 0x0072 }),
('Odd Medicine Building -> Kakariko Village Backyard', { 'index': 0x034D })),
('Interior', ('Graveyard -> Dampes House', { 'index': 0x030D }),
('Dampes House -> Graveyard', { 'index': 0x0355 })),
('Interior', ('Goron City -> Goron Shop', { 'index': 0x037C }),
('Goron Shop -> Goron City', { 'index': 0x03FC })),
('Interior', ('Zoras Domain -> Zora Shop', { 'index': 0x0380 }),
('Zora Shop -> Zoras Domain', { 'index': 0x03C4 })),
('Interior', ('Lon Lon Ranch -> Talon House', { 'index': 0x004F }),
('Talon House -> Lon Lon Ranch', { 'index': 0x0378 })),
('Interior', ('Lon Lon Ranch -> Ingo Barn', { 'index': 0x02F9 }),
('Ingo Barn -> Lon Lon Ranch', { 'index': 0x042F })),
('Interior', ('Lon Lon Ranch -> Lon Lon Corner Tower', { 'index': 0x05D0 }),
('Lon Lon Corner Tower -> Lon Lon Ranch', { 'index': 0x05D4 })),
('Interior', ('Castle Town -> Castle Town Bazaar', { 'index': 0x052C }),
('Castle Town Bazaar -> Castle Town', { 'index': 0x03B8, 'addresses': [0xBEFD74] })),
('Interior', ('Castle Town -> Castle Town Shooting Gallery', { 'index': 0x016D }),
('Castle Town Shooting Gallery -> Castle Town', { 'index': 0x01CD, 'addresses': [0xBEFD7C] })),
('Interior', ('Kakariko Village -> Kakariko Bazaar', { 'index': 0x00B7 }),
('Kakariko Bazaar -> Kakariko Village', { 'index': 0x0201, 'addresses': [0xBEFD72] })),
('Interior', ('Kakariko Village -> Kakariko Shooting Gallery', { 'index': 0x003B }),
('Kakariko Shooting Gallery -> Kakariko Village', { 'index': 0x0463, 'addresses': [0xBEFD7A] })),
('Interior', ('Desert Colossus -> Colossus Fairy', { 'index': 0x0588 }),
('Colossus Fairy -> Desert Colossus', { 'index': 0x057C, 'addresses': [0xBEFD82] })),
('Interior', ('Hyrule Castle Grounds -> Hyrule Castle Fairy', { 'index': 0x0578 }),
('Hyrule Castle Fairy -> Castle Grounds', { 'index': 0x0340, 'addresses': [0xBEFD80] })),
('Interior', ('Ganons Castle Grounds -> Ganons Castle Fairy', { 'index': 0x04C2 }),
('Ganons Castle Fairy -> Castle Grounds', { 'index': 0x0340, 'addresses': [0xBEFD6C] })),
('Interior', ('Death Mountain Crater Lower Nearby -> Crater Fairy', { 'index': 0x04BE }),
('Crater Fairy -> Death Mountain Crater Lower Local', { 'index': 0x0482, 'addresses': [0xBEFD6A] })),
('Interior', ('Death Mountain Summit -> Mountain Summit Fairy', { 'index': 0x0315 }),
('Mountain Summit Fairy -> Death Mountain Summit', { 'index': 0x045B, 'addresses': [0xBEFD68] })),
('Interior', ('Zoras Fountain -> Zoras Fountain Fairy', { 'index': 0x0371 }),
('Zoras Fountain Fairy -> Zoras Fountain', { 'index': 0x0394, 'addresses': [0xBEFD7E] })),
('SpecialInterior', ('Kokiri Forest -> Links House', { 'index': 0x0272 }),
('Links House -> Kokiri Forest', { 'index': 0x0211 })),
('SpecialInterior', ('Temple of Time Exterior -> Temple of Time', { 'index': 0x0053 }),
('Temple of Time -> Temple of Time Exterior', { 'index': 0x0472 })),
('SpecialInterior', ('Kakariko Village -> Windmill', { 'index': 0x0453 }),
('Windmill -> Kakariko Village', { 'index': 0x0351 })),
('SpecialInterior', ('Kakariko Village -> Kakariko Potion Shop Front', { 'index': 0x0384 }),
('Kakariko Potion Shop Front -> Kakariko Village', { 'index': 0x044B })),
('SpecialInterior', ('Kakariko Village Backyard -> Kakariko Potion Shop Back', { 'index': 0x03EC }),
('Kakariko Potion Shop Back -> Kakariko Village Backyard', { 'index': 0x04FF })),
('Grotto', ('Desert Colossus -> Desert Colossus Grotto', { 'grotto_id': 0x00, 'entrance': 0x05BC, 'content': 0xFD, 'scene': 0x5C }),
('Desert Colossus Grotto -> Desert Colossus', { 'grotto_id': 0x00, 'entrance': 0x0123, 'room': 0x00, 'angle': 0xA71C, 'pos': (0x427A0800, 0xC2000000, 0xC4A20666) })),
('Grotto', ('Lake Hylia -> Lake Hylia Grotto', { 'grotto_id': 0x01, 'entrance': 0x05A4, 'content': 0xEF, 'scene': 0x57 }),
('Lake Hylia Grotto -> Lake Hylia', { 'grotto_id': 0x01, 'entrance': 0x0102, 'room': 0x00, 'angle': 0x0000, 'pos': (0xC53DF56A, 0xC4812000, 0x45BE05F2) })),
('Grotto', ('Zora River -> Zora River Storms Grotto', { 'grotto_id': 0x02, 'entrance': 0x05BC, 'content': 0xEB, 'scene': 0x54 }),
('Zora River Storms Grotto -> Zora River', { 'grotto_id': 0x02, 'entrance': 0x00EA, 'room': 0x00, 'angle': 0x0000, 'pos': (0xC4CBC1B4, 0x42C80000, 0xC3041ABE) })),
('Grotto', ('Zora River -> Zora River Plateau Bombable Grotto', { 'grotto_id': 0x03, 'entrance': 0x036D, 'content': 0xE6, 'scene': 0x54 }),
('Zora River Plateau Bombable Grotto -> Zora River', { 'grotto_id': 0x03, 'entrance': 0x00EA, 'room': 0x00, 'angle': 0xE000, 'pos': (0x4427A070, 0x440E8000, 0xC3B4ED3B) })),
('Grotto', ('Zora River -> Zora River Plateau Open Grotto', { 'grotto_id': 0x04, 'entrance': 0x003F, 'content': 0x29, 'scene': 0x54 }),
('Zora River Plateau Open Grotto -> Zora River', { 'grotto_id': 0x04, 'entrance': 0x00EA, 'room': 0x00, 'angle': 0x8000, 'pos': (0x43B52520, 0x440E8000, 0x4309A14F) })),
('Grotto', ('Death Mountain Crater Lower Nearby -> DMC Hammer Grotto', { 'grotto_id': 0x05, 'entrance': 0x05A4, 'content': 0xF9, 'scene': 0x61 }),
('DMC Hammer Grotto -> Death Mountain Crater Lower Local', { 'grotto_id': 0x05, 'entrance': 0x0246, 'room': 0x01, 'angle': 0x31C7, 'pos': (0xC4D290C0, 0x44348000, 0xC3ED5557) })),
('Grotto', ('Death Mountain Crater Upper Nearby -> Top of Crater Grotto', { 'grotto_id': 0x06, 'entrance': 0x003F, 'content': 0x7A, 'scene': 0x61 }),
('Top of Crater Grotto -> Death Mountain Crater Upper Local', { 'grotto_id': 0x06, 'entrance': 0x0147, 'room': 0x01, 'angle': 0x238E, 'pos': (0x420F3401, 0x449E2000, 0x44DCD549) })),
('Grotto', ('Goron City Grotto Platform -> Goron City Grotto', { 'grotto_id': 0x07, 'entrance': 0x05A4, 'content': 0xFB, 'scene': 0x62 }),
('Goron City Grotto -> Goron City Grotto Platform', { 'grotto_id': 0x07, 'entrance': 0x014D, 'room': 0x03, 'angle': 0x0000, 'pos': (0x448A1754, 0x44110000, 0xC493CCFD) })),
('Grotto', ('Death Mountain -> Mountain Storms Grotto', { 'grotto_id': 0x08, 'entrance': 0x003F, 'content': 0x57, 'scene': 0x60 }),
('Mountain Storms Grotto -> Death Mountain', { 'grotto_id': 0x08, 'entrance': 0x01B9, 'room': 0x00, 'angle': 0x8000, 'pos': (0xC3C1CAC1, 0x44AD4000, 0xC497A1BA) })),
('Grotto', ('Death Mountain Summit -> Mountain Bombable Grotto', { 'grotto_id': 0x09, 'entrance': 0x05FC, 'content': 0xF8, 'scene': 0x60 }),
('Mountain Bombable Grotto -> Death Mountain Summit', { 'grotto_id': 0x09, 'entrance': 0x01B9, 'room': 0x00, 'angle': 0x8000, 'pos': (0xC42CC164, 0x44F34000, 0xC38CFC0C) })),
('Grotto', ('Kakariko Village Backyard -> Kakariko Back Grotto', { 'grotto_id': 0x0A, 'entrance': 0x003F, 'content': 0x28, 'scene': 0x52 }),
('Kakariko Back Grotto -> Kakariko Village Backyard', { 'grotto_id': 0x0A, 'entrance': 0x00DB, 'room': 0x00, 'angle': 0x0000, 'pos': (0x4455CF3B, 0x42A00000, 0xC37D1871) })),
('Grotto', ('Kakariko Village -> Kakariko Bombable Grotto', { 'grotto_id': 0x0B, 'entrance': 0x05A0, 'content': 0xE7, 'scene': 0x52 }),
('Kakariko Bombable Grotto -> Kakariko Village', { 'grotto_id': 0x0B, 'entrance': 0x00DB, 'room': 0x00, 'angle': 0x0000, 'pos': (0xC3C8EFCE, 0x00000000, 0x43C96551) })),
('Grotto', ('Hyrule Castle Grounds -> Castle Storms Grotto', { 'grotto_id': 0x0C, 'entrance': 0x05B8, 'content': 0xF6, 'scene': 0x5F }),
('Castle Storms Grotto -> Castle Grounds', { 'grotto_id': 0x0C, 'entrance': 0x0138, 'room': 0x00, 'angle': 0x9555, 'pos': (0x447C4104, 0x44C46000, 0x4455E211) })),
('Grotto', ('Hyrule Field -> Field North Lon Lon Grotto', { 'grotto_id': 0x0D, 'entrance': 0x05C0, 'content': 0xE1, 'scene': 0x51 }),
('Field North Lon Lon Grotto -> Hyrule Field', { 'grotto_id': 0x0D, 'entrance': 0x01F9, 'room': 0x00, 'angle': 0x1555, 'pos': (0xC59AACA0, 0xC3960000, 0x45315966) })),
('Grotto', ('Hyrule Field -> Field Kakariko Grotto', { 'grotto_id': 0x0E, 'entrance': 0x0598, 'content': 0xE5, 'scene': 0x51 }),
('Field Kakariko Grotto -> Hyrule Field', { 'grotto_id': 0x0E, 'entrance': 0x01F9, 'room': 0x00, 'angle': 0xC000, 'pos': (0x4500299B, 0x41A00000, 0xC32065BD) })),
('Grotto', ('Hyrule Field -> Field Far West Castle Town Grotto', { 'grotto_id': 0x0F, 'entrance': 0x036D, 'content': 0xFF, 'scene': 0x51 }),
('Field Far West Castle Town Grotto -> Hyrule Field', { 'grotto_id': 0x0F, 'entrance': 0x01F9, 'room': 0x00, 'angle': 0x0000, 'pos': (0xC58B2544, 0xC3960000, 0xC3D5186B) })),
('Grotto', ('Hyrule Field -> Field West Castle Town Grotto', { 'grotto_id': 0x10, 'entrance': 0x003F, 'content': 0x00, 'scene': 0x51 }),
('Field West Castle Town Grotto -> Hyrule Field', { 'grotto_id': 0x10, 'entrance': 0x01F9, 'room': 0x00, 'angle': 0xE000, 'pos': (0xC4B2B1F3, 0x00000000, 0x444C719D) })),
('Grotto', ('Hyrule Field -> Field Valley Grotto', { 'grotto_id': 0x11, 'entrance': 0x05A8, 'content': 0xE4, 'scene': 0x51 }),
('Field Valley Grotto -> Hyrule Field', { 'grotto_id': 0x11, 'entrance': 0x01F9, 'room': 0x00, 'angle': 0x0000, 'pos': (0xC5F61086, 0xC3960000, 0x45D84A7E) })),
('Grotto', ('Hyrule Field -> Field Near Lake Inside Fence Grotto', { 'grotto_id': 0x12, 'entrance': 0x059C, 'content': 0xE6, 'scene': 0x51 }),
('Field Near Lake Inside Fence Grotto -> Hyrule Field', { 'grotto_id': 0x12, 'entrance': 0x01F9, 'room': 0x00, 'angle': 0xEAAB, 'pos': (0xC59BE902, 0xC42F0000, 0x4657F479) })),
('Grotto', ('Hyrule Field -> Field Near Lake Outside Fence Grotto', { 'grotto_id': 0x13, 'entrance': 0x003F, 'content': 0x03, 'scene': 0x51 }),
('Field Near Lake Outside Fence Grotto -> Hyrule Field', { 'grotto_id': 0x13, 'entrance': 0x01F9, 'room': 0x00, 'angle': 0x8000, 'pos': (0xC57B69B1, 0xC42F0000, 0x46588DF2) })),
('Grotto', ('Hyrule Field -> Remote Southern Grotto', { 'grotto_id': 0x14, 'entrance': 0x003F, 'content': 0x22, 'scene': 0x51 }),
('Remote Southern Grotto -> Hyrule Field', { 'grotto_id': 0x14, 'entrance': 0x01F9, 'room': 0x00, 'angle': 0x9555, 'pos': (0xC384A807, 0xC3FA0000, 0x4640DCC8) })),
('Grotto', ('Lon Lon Ranch -> Lon Lon Grotto', { 'grotto_id': 0x15, 'entrance': 0x05A4, 'content': 0xFC, 'scene': 0x63 }),
('Lon Lon Grotto -> Lon Lon Ranch', { 'grotto_id': 0x15, 'entrance': 0x0157, 'room': 0x00, 'angle': 0xAAAB, 'pos': (0x44E0FD92, 0x00000000, 0x44BB9A4C) })),
('Grotto', ('Sacred Forest Meadow Entryway -> Front of Meadow Grotto', { 'grotto_id': 0x16, 'entrance': 0x05B4, 'content': 0xED, 'scene': 0x56 }),
('Front of Meadow Grotto -> Sacred Forest Meadow Entryway', { 'grotto_id': 0x16, 'entrance': 0x00FC, 'room': 0x00, 'angle': 0x8000, 'pos': (0xC33DDC64, 0x00000000, 0x44ED42CE) })),
('Grotto', ('Sacred Forest Meadow -> Meadow Storms Grotto', { 'grotto_id': 0x17, 'entrance': 0x05BC, 'content': 0xEE, 'scene': 0x56 }),
('Meadow Storms Grotto -> Sacred Forest Meadow', { 'grotto_id': 0x17, 'entrance': 0x00FC, 'room': 0x00, 'angle': 0xAAAB, 'pos': (0x439D6D22, 0x43F00000, 0xC50FC63A) })),
('Grotto', ('Sacred Forest Meadow -> Meadow Fairy Grotto', { 'grotto_id': 0x18, 'entrance': 0x036D, 'content': 0xFF, 'scene': 0x56 }),
('Meadow Fairy Grotto -> Sacred Forest Meadow', { 'grotto_id': 0x18, 'entrance': 0x00FC, 'room': 0x00, 'angle': 0x0000, 'pos': (0x425C22D1, 0x00000000, 0x434E9835) })),
('Grotto', ('Lost Woods Beyond Mido -> Lost Woods Sales Grotto', { 'grotto_id': 0x19, 'entrance': 0x05B0, 'content': 0xF5, 'scene': 0x5B }),
('Lost Woods Sales Grotto -> Lost Woods Beyond Mido', { 'grotto_id': 0x19, 'entrance': 0x01A9, 'room': 0x08, 'angle': 0x2000, 'pos': (0x44293FA2, 0x00000000, 0xC51DE32B) })),
('Grotto', ('Lost Woods -> Lost Woods Generic Grotto', { 'grotto_id': 0x1A, 'entrance': 0x003F, 'content': 0x14, 'scene': 0x5B }),
('Lost Woods Generic Grotto -> Lost Woods', { 'grotto_id': 0x1A, 'entrance': 0x011E, 'room': 0x02, 'angle': 0xE000, 'pos': (0x4464B055, 0x00000000, 0xC464DB7D) })),
('Grotto', ('Kokiri Forest -> Kokiri Forest Storms Grotto', { 'grotto_id': 0x1B, 'entrance': 0x003F, 'content': 0x2C, 'scene': 0x55 }),
('Kokiri Forest Storms Grotto -> Kokiri Forest', { 'grotto_id': 0x1B, 'entrance': 0x0286, 'room': 0x00, 'angle': 0x4000, 'pos': (0xC3FD8856, 0x43BE0000, 0xC4988DA8) })),
('Grotto', ('Zoras Domain -> Zoras Domain Storms Grotto', { 'grotto_id': 0x1C, 'entrance': 0x036D, 'content': 0xFF, 'scene': 0x58 }),
('Zoras Domain Storms Grotto -> Zoras Domain', { 'grotto_id': 0x1C, 'entrance': 0x0108, 'room': 0x01, 'angle': 0xD555, 'pos': (0xC455EB8D, 0x41600000, 0xC3ED3602) })),
('Grotto', ('Gerudo Fortress -> Gerudo Fortress Storms Grotto', { 'grotto_id': 0x1D, 'entrance': 0x036D, 'content': 0xFF, 'scene': 0x5D }),
('Gerudo Fortress Storms Grotto -> Gerudo Fortress', { 'grotto_id': 0x1D, 'entrance': 0x0129, 'room': 0x00, 'angle': 0x4000, 'pos': (0x43BE42C0, 0x43A68000, 0xC4C317B1) })),
('Grotto', ('Gerudo Valley Far Side -> Gerudo Valley Storms Grotto', { 'grotto_id': 0x1E, 'entrance': 0x05BC, 'content': 0xF0, 'scene': 0x5A }),
('Gerudo Valley Storms Grotto -> Gerudo Valley Far Side', { 'grotto_id': 0x1E, 'entrance': 0x022D, 'room': 0x00, 'angle': 0x9555, 'pos': (0xC4A5CAD2, 0x41700000, 0xC475FF9B) })),
('Grotto', ('Gerudo Valley Grotto Ledge -> Gerudo Valley Octorok Grotto', { 'grotto_id': 0x1F, 'entrance': 0x05AC, 'content': 0xF2, 'scene': 0x5A }),
('Gerudo Valley Octorok Grotto -> Gerudo Valley Grotto Ledge', { 'grotto_id': 0x1F, 'entrance': 0x0117, 'room': 0x00, 'angle': 0x8000, 'pos': (0x4391C1A4, 0xC40AC000, 0x44B8CC9B) })),
('Grotto', ('Lost Woods Beyond Mido -> Deku Theater', { 'grotto_id': 0x20, 'entrance': 0x05C4, 'content': 0xF3, 'scene': 0x5B }),
('Deku Theater -> Lost Woods Beyond Mido', { 'grotto_id': 0x20, 'entrance': 0x01A9, 'room': 0x06, 'angle': 0x4000, 'pos': (0x42AA8FDA, 0xC1A00000, 0xC4C82D49) })),
('Grave', ('Graveyard -> Shield Grave', { 'index': 0x004B }),
('Shield Grave -> Graveyard', { 'index': 0x035D })),
('Grave', ('Graveyard -> Heart Piece Grave', { 'index': 0x031C }),
('Heart Piece Grave -> Graveyard', { 'index': 0x0361 })),
('Grave', ('Graveyard -> Composer Grave', { 'index': 0x002D }),
('Composer Grave -> Graveyard', { 'index': 0x050B })),
('Grave', ('Graveyard -> Dampes Grave', { 'index': 0x044F }),
('Dampes Grave -> Graveyard', { 'index': 0x0359 })),
('Overworld', ('Kokiri Forest -> Lost Woods Bridge From Forest', { 'index': 0x05E0 }),
('Lost Woods Bridge -> Kokiri Forest', { 'index': 0x020D })),
('Overworld', ('Kokiri Forest -> Lost Woods', { 'index': 0x011E }),
('Lost Woods Forest Exit -> Kokiri Forest', { 'index': 0x0286 })),
('Overworld', ('Lost Woods -> Goron City Woods Warp', { 'index': 0x04E2 }),
('Goron City Woods Warp -> Lost Woods', { 'index': 0x04D6 })),
('Overworld', ('Lost Woods -> Zora River', { 'index': 0x01DD }),
('Zora River -> Lost Woods', { 'index': 0x04DA })),
('Overworld', ('Lost Woods Beyond Mido -> Sacred Forest Meadow Entryway', { 'index': 0x00FC }),
('Sacred Forest Meadow Entryway -> Lost Woods Beyond Mido', { 'index': 0x01A9 })),
('Overworld', ('Lost Woods Bridge -> Hyrule Field', { 'index': 0x0185 }),
('Hyrule Field -> Lost Woods Bridge', { 'index': 0x04DE })),
('Overworld', ('Hyrule Field -> Lake Hylia', { 'index': 0x0102 }),
('Lake Hylia -> Hyrule Field', { 'index': 0x0189 })),
('Overworld', ('Hyrule Field -> Gerudo Valley', { 'index': 0x0117 }),
('Gerudo Valley -> Hyrule Field', { 'index': 0x018D })),
('Overworld', ('Hyrule Field -> Castle Town Entrance', { 'index': 0x0276 }),
('Castle Town Entrance -> Hyrule Field', { 'index': 0x01FD })),
('Overworld', ('Hyrule Field -> Kakariko Village', { 'index': 0x00DB }),
('Kakariko Village -> Hyrule Field', { 'index': 0x017D })),
('Overworld', ('Hyrule Field -> Zora River Front', { 'index': 0x00EA }),
('Zora River Front -> Hyrule Field', { 'index': 0x0181 })),
('Overworld', ('Hyrule Field -> Lon Lon Ranch', { 'index': 0x0157 }),
('Lon Lon Ranch -> Hyrule Field', { 'index': 0x01F9 })),
('Overworld', ('Lake Hylia -> Zoras Domain', { 'index': 0x0328 }),
('Zoras Domain -> Lake Hylia', { 'index': 0x0560 })),
('Overworld', ('Gerudo Valley Far Side -> Gerudo Fortress', { 'index': 0x0129 }),
('Gerudo Fortress -> Gerudo Valley Far Side', { 'index': 0x022D })),
('Overworld', ('Gerudo Fortress Outside Gate -> Haunted Wasteland Near Fortress', { 'index': 0x0130 }),
('Haunted Wasteland Near Fortress -> Gerudo Fortress Outside Gate', { 'index': 0x03AC })),
('Overworld', ('Haunted Wasteland Near Colossus -> Desert Colossus', { 'index': 0x0123 }),
('Desert Colossus -> Haunted Wasteland Near Colossus', { 'index': 0x0365 })),
('Overworld', ('Castle Town Entrance -> Castle Town', { 'index': 0x00B1 }),
('Castle Town -> Castle Town Entrance', { 'index': 0x0033 })),
('Overworld', ('Castle Town -> Castle Grounds', { 'index': 0x0138 }),
('Castle Grounds -> Castle Town', { 'index': 0x025A })),
('Overworld', ('Castle Town -> Temple of Time Exterior', { 'index': 0x0171 }),
('Temple of Time Exterior -> Castle Town', { 'index': 0x025E })),
('Overworld', ('Kakariko Village -> Graveyard', { 'index': 0x00E4 }),
('Graveyard -> Kakariko Village', { 'index': 0x0195 })),
('Overworld', ('Kakariko Village Behind Gate -> Death Mountain', { 'index': 0x013D }),
('Death Mountain -> Kakariko Village Behind Gate', { 'index': 0x0191 })),
('Overworld', ('Death Mountain -> Goron City', { 'index': 0x014D }),
('Goron City -> Death Mountain', { 'index': 0x01B9 })),
('Overworld', ('Darunias Chamber -> Death Mountain Crater Lower Local', { 'index': 0x0246 }),
('Death Mountain Crater Lower Nearby -> Darunias Chamber', { 'index': 0x01C1 })),
('Overworld', ('Death Mountain Summit -> Death Mountain Crater Upper Local', { 'index': 0x0147 }),
('Death Mountain Crater Upper Nearby -> Death Mountain Summit', { 'index': 0x01BD })),
('Overworld', ('Zora River Behind Waterfall -> Zoras Domain', { 'index': 0x0108 }),
('Zoras Domain -> Zora River Behind Waterfall', { 'index': 0x019D })),
('Overworld', ('Zoras Domain Behind King Zora -> Zoras Fountain', { 'index': 0x0225 }),
('Zoras Fountain -> Zoras Domain Behind King Zora', { 'index': 0x01A1 })),
('OwlDrop', ('Lake Hylia Owl Flight -> Hyrule Field', { 'index': 0x027E, 'addresses': [0xAC9F26] })),
('OwlDrop', ('Death Mountain Owl Flight -> Kakariko Impa Ledge', { 'index': 0x0554, 'addresses': [0xAC9EF2] })),
('Spawn', ('Child Spawn -> Links House', { 'index': 0x00BB, 'addresses': [0xB0631E, 0xB06342] })),
('Spawn', ('Adult Spawn -> Temple of Time', { 'index': 0x05F4, 'addresses': [0xB06332] })),
('WarpSong', ('Minuet of Forest Warp -> Sacred Forest Meadow', { 'index': 0x0600, 'addresses': [0xBF023C] })),
('WarpSong', ('Bolero of Fire Warp -> Death Mountain Crater Central Local', { 'index': 0x04F6, 'addresses': [0xBF023E] })),
('WarpSong', ('Serenade of Water Warp -> Lake Hylia', { 'index': 0x0604, 'addresses': [0xBF0240] })),
('WarpSong', ('Requiem of Spirit Warp -> Desert Colossus', { 'index': 0x01F1, 'addresses': [0xBF0242] })),
('WarpSong', ('Nocturne of Shadow Warp -> Shadow Temple Warp Region', { 'index': 0x0568, 'addresses': [0xBF0244] })),
('WarpSong', ('Prelude of Light Warp -> Temple of Time', { 'index': 0x05F4, 'addresses': [0xBF0246] })),
('Extra', ('Lost Woods Mushroom Timeout -> Lost Woods', { 'index': 0x01AD })),
('Extra', ('Zoras Domain Eyeball Frog Timeout -> Zoras Domain', { 'index': 0x0153 })),
('Extra', ('Zora River Top of Waterfall -> Zora River', { 'index': 0x0199 })),
]
class EntranceShuffleError(ShuffleError):
pass
# Set entrances of all worlds, first initializing them to their default regions, then potentially shuffling part of them
def set_entrances(worlds):
for world in worlds:
world.initialize_entrances()
if worlds[0].entrance_shuffle:
shuffle_random_entrances(worlds)
set_entrances_based_rules(worlds)
# Shuffles entrances that need to be shuffled in all worlds
def shuffle_random_entrances(worlds):
# Store all locations reachable before shuffling to differentiate which locations were already unreachable from those we made unreachable
complete_itempool = [item for world in worlds for item in world.get_itempool_with_dungeon_items()]
max_playthrough = Playthrough.max_explore([world.state for world in worlds], complete_itempool)
non_drop_locations = [location for world in worlds for location in world.get_locations() if location.type not in ('Drop', 'Event')]
max_playthrough.visit_locations(non_drop_locations)
locations_to_ensure_reachable = list(filter(max_playthrough.visited, non_drop_locations))
# Shuffle all entrances within their own worlds
for world in worlds:
# Set entrance data for all entrances, even those we aren't shuffling
set_all_entrances_data(world)
# Determine entrance pools based on settings, to be shuffled in the order we set them by
one_way_entrance_pools = OrderedDict()
entrance_pools = OrderedDict()
if worlds[0].owl_drops:
one_way_entrance_pools['OwlDrop'] = world.get_shufflable_entrances(type='OwlDrop')
if worlds[0].spawn_positions:
one_way_entrance_pools['Spawn'] = world.get_shufflable_entrances(type='Spawn')
if worlds[0].warp_songs:
one_way_entrance_pools['WarpSong'] = world.get_shufflable_entrances(type='WarpSong')
if worlds[0].shuffle_dungeon_entrances:
entrance_pools['Dungeon'] = world.get_shufflable_entrances(type='Dungeon', only_primary=True)
# The fill algorithm will already make sure gohma is reachable, however it can end up putting
# a forest escape via the hands of spirit on Deku leading to Deku on spirit in logic. This is
# not really a closed forest anymore, so specifically remove Deku Tree from closed forest.
if worlds[0].open_forest == 'closed':
entrance_pools['Dungeon'].remove(world.get_entrance('Outside Deku Tree -> Deku Tree Lobby'))
if worlds[0].decouple_entrances:
entrance_pools['DungeonReverse'] = [entrance.reverse for entrance in entrance_pools['Dungeon']]
if worlds[0].shuffle_interior_entrances:
entrance_pools['Interior'] = world.get_shufflable_entrances(type='Interior', only_primary=True)
if worlds[0].shuffle_special_interior_entrances:
entrance_pools['Interior'] += world.get_shufflable_entrances(type='SpecialInterior', only_primary=True)
if worlds[0].decouple_entrances:
entrance_pools['InteriorReverse'] = [entrance.reverse for entrance in entrance_pools['Interior']]
if worlds[0].shuffle_grotto_entrances:
entrance_pools['GrottoGrave'] = world.get_shufflable_entrances(type='Grotto', only_primary=True)
entrance_pools['GrottoGrave'] += world.get_shufflable_entrances(type='Grave', only_primary=True)
if worlds[0].decouple_entrances:
entrance_pools['GrottoGraveReverse'] = [entrance.reverse for entrance in entrance_pools['GrottoGrave']]
if worlds[0].shuffle_overworld_entrances:
exclude_overworld_reverse = worlds[0].mix_entrance_pools and not worlds[0].decouple_entrances
entrance_pools['Overworld'] = world.get_shufflable_entrances(type='Overworld', only_primary=exclude_overworld_reverse)
# Set shuffled entrances as such
for entrance in list(chain.from_iterable(one_way_entrance_pools.values())) + list(chain.from_iterable(entrance_pools.values())):
entrance.shuffled = True
if entrance.reverse:
entrance.reverse.shuffled = True
# Combine all entrance pools into one when mixing entrance pools
if worlds[0].mix_entrance_pools:
entrance_pools = {'Mixed': list(chain.from_iterable(entrance_pools.values()))}
# Build target entrance pools and set the assumption for entrances being reachable
one_way_target_entrance_pools = {}
for pool_type, entrance_pool in one_way_entrance_pools.items():
# One way entrances are extra entrances that will be connected to entrance positions from a selection of entrance pools
if pool_type == 'OwlDrop':
valid_target_types = ('WarpSong', 'OwlDrop', 'Overworld', 'Extra')
one_way_target_entrance_pools[pool_type] = build_one_way_targets(world, valid_target_types, exclude=['Prelude of Light Warp -> Temple of Time'])
for target in one_way_target_entrance_pools[pool_type]:
target.set_rule(lambda state, age=None, **kwargs: age == 'child')
elif pool_type == 'Spawn':
valid_target_types = ('Spawn', 'WarpSong', 'OwlDrop', 'Overworld', 'Interior', 'SpecialInterior', 'Extra')
one_way_target_entrance_pools[pool_type] = build_one_way_targets(world, valid_target_types)
elif pool_type == 'WarpSong':
valid_target_types = ('Spawn', 'WarpSong', 'OwlDrop', 'Overworld', 'Interior', 'SpecialInterior', 'Grotto', 'Grave', 'Extra')
one_way_target_entrance_pools[pool_type] = build_one_way_targets(world, valid_target_types)
# Ensure that when trying to place the last entrance of a one way pool, we don't assume the rest of the targets are reachable
for target in one_way_target_entrance_pools[pool_type]:
target.add_rule((lambda entrances=entrance_pool: (lambda state, **kwargs: any(entrance.connected_region == None for entrance in entrances)))())
# Disconnect all one way entrances at this point (they need to be connected during all of the above process)
for entrance in chain.from_iterable(one_way_entrance_pools.values()):
entrance.disconnect()
target_entrance_pools = {}
for pool_type, entrance_pool in entrance_pools.items():
target_entrance_pools[pool_type] = assume_entrance_pool(entrance_pool)
# Set entrances defined in the distribution
world.distribution.set_shuffled_entrances(worlds, dict(chain(one_way_entrance_pools.items(), entrance_pools.items())), dict(chain(one_way_target_entrance_pools.items(), target_entrance_pools.items())), locations_to_ensure_reachable, complete_itempool)
# Shuffle all entrances among the pools to shuffle
for pool_type, entrance_pool in one_way_entrance_pools.items():
shuffle_entrance_pool(world, worlds, entrance_pool, one_way_target_entrance_pools[pool_type], locations_to_ensure_reachable, check_all=True)
# Delete all targets that we just placed from other one way target pools so multiple one way entrances don't use the same target
replaced_entrances = [entrance.replaces for entrance in entrance_pool]
for remaining_target in chain.from_iterable(one_way_target_entrance_pools.values()):
if remaining_target.replaces in replaced_entrances:
delete_target_entrance(remaining_target)
# Delete all unused extra targets after placing a one way pool, since the unused targets won't ever be replaced
for unused_target in one_way_target_entrance_pools[pool_type]:
delete_target_entrance(unused_target)
for pool_type, entrance_pool in entrance_pools.items():
shuffle_entrance_pool(world, worlds, entrance_pool, target_entrance_pools[pool_type], locations_to_ensure_reachable)
# Multiple checks after shuffling entrances to make sure everything went fine
max_playthrough = Playthrough.max_explore([world.state for world in worlds], complete_itempool)
# Check that all shuffled entrances are properly connected to a region
for world in worlds:
for entrance in world.get_shuffled_entrances():
if entrance.connected_region == None:
logging.getLogger('').error('%s was shuffled but still isn\'t connected to any region [World %d]', entrance, world.id)
if entrance.replaces == None:
logging.getLogger('').error('%s was shuffled but still doesn\'t replace any entrance [World %d]', entrance, world.id)
if len(world.get_region('Root Exits').exits) > 8:
for exit in world.get_region('Root Exits').exits:
logging.getLogger('').error('Root Exit: %s, Connected Region: %s', exit, exit.connected_region)
raise RuntimeError('Something went wrong, Root has too many entrances left after shuffling entrances [World %d]' % world.id)
# Check for game beatability in all worlds
if not max_playthrough.can_beat_game(False):
raise EntranceShuffleError('Cannot beat game!')
# Validate the worlds one last time to ensure all special conditions are still valid
for world in worlds:
try:
validate_world(world, worlds, None, locations_to_ensure_reachable, complete_itempool)
except EntranceShuffleError as error:
raise EntranceShuffleError('Worlds are not valid after shuffling entrances, Reason: %s' % error)
# Shuffle all entrances within a provided pool
def shuffle_entrance_pool(world, worlds, entrance_pool, target_entrances, locations_to_ensure_reachable, check_all=False, retry_count=20):
# Split entrances between those that have requirements (restrictive) and those that do not (soft). These are primarily age or time of day requirements.
restrictive_entrances, soft_entrances = split_entrances_by_requirements(worlds, entrance_pool, target_entrances)
while retry_count:
retry_count -= 1
rollbacks = []
try:
# Shuffle restrictive entrances first while more regions are available in order to heavily reduce the chances of the placement failing.
shuffle_entrances(worlds, restrictive_entrances, target_entrances, rollbacks, locations_to_ensure_reachable)
# Shuffle the rest of the entrances, we don't have to check for beatability/reachability of locations when placing those, unless specified otherwise
if check_all:
shuffle_entrances(worlds, soft_entrances, target_entrances, rollbacks, locations_to_ensure_reachable)
else:
shuffle_entrances(worlds, soft_entrances, target_entrances, rollbacks)
# Fully validate the resulting world to ensure everything is still fine after shuffling this pool
complete_itempool = [item for world in worlds for item in world.get_itempool_with_dungeon_items()]
validate_world(world, worlds, None, locations_to_ensure_reachable, complete_itempool)
# If all entrances could be connected without issues, log connections and continue
for entrance, target in rollbacks:
confirm_replacement(entrance, target)
return
except EntranceShuffleError as error:
for entrance, target in rollbacks:
restore_connections(entrance, target)
logging.getLogger('').info('Failed to place all entrances in a pool for world %d. Will retry %d more times', entrance_pool[0].world.id, retry_count)
logging.getLogger('').info('\t%s' % error)
raise EntranceShuffleError('Entrance placement attempt count exceeded for world %d' % entrance_pool[0].world.id)
# Split entrances based on their requirements to figure out how each entrance should be handled when shuffling them
def split_entrances_by_requirements(worlds, entrances_to_split, assumed_entrances):
# First, disconnect all root assumed entrances and save which regions they were originally connected to, so we can reconnect them later
original_connected_regions = {}
entrances_to_disconnect = set(assumed_entrances).union(entrance.reverse for entrance in assumed_entrances if entrance.reverse)
for entrance in entrances_to_disconnect:
if entrance.connected_region:
original_connected_regions[entrance] = entrance.disconnect()
# Generate the states with all assumed entrances disconnected
# This ensures no assumed entrances corresponding to those we are shuffling are required in order for an entrance to be reachable as some age/tod
complete_itempool = [item for world in worlds for item in world.get_itempool_with_dungeon_items()]
max_playthrough = Playthrough.max_explore([world.state for world in worlds], complete_itempool)
restrictive_entrances = []
soft_entrances = []
for entrance in entrances_to_split:
# Here, we find entrances that may be unreachable under certain conditions
if not max_playthrough.spot_access(entrance, age='both', tod=TimeOfDay.ALL):
restrictive_entrances.append(entrance)
continue
# If an entrance is reachable as both ages and all times of day with all the other entrances disconnected,
# then it can always be made accessible in all situations by the Fill algorithm, no matter which combination of entrances we end up with.
# Thus, those entrances aren't bound to any specific requirements and are very versatile during placement.
soft_entrances.append(entrance)
# Reconnect all disconnected entrances afterwards
for entrance in entrances_to_disconnect:
if entrance in original_connected_regions:
entrance.connect(original_connected_regions[entrance])
return restrictive_entrances, soft_entrances
# Shuffle entrances by placing them instead of entrances in the provided target entrances list
# While shuffling entrances, the algorithm will ensure worlds are still valid based on multiple criterias
def shuffle_entrances(worlds, entrances, target_entrances, rollbacks, locations_to_ensure_reachable=[]):
# Retrieve all items in the itempool, all worlds included
complete_itempool = [item for world in worlds for item in world.get_itempool_with_dungeon_items()]
random.shuffle(entrances)
# Place all entrances in the pool, validating worlds during every placement
for entrance in entrances:
if entrance.connected_region != None:
continue
random.shuffle(target_entrances)
for target in target_entrances:
if target.connected_region == None:
continue
try:
check_entrances_compatibility(entrance, target)
change_connections(entrance, target)
validate_world(entrance.world, worlds, entrance, locations_to_ensure_reachable, complete_itempool)
rollbacks.append((entrance, target))
break
except EntranceShuffleError as error:
# If the entrance can't be placed there, log a debug message and change the connections back to what they were previously
logging.getLogger('').debug('Failed to connect %s To %s (Reason: %s) [World %d]',
entrance, entrance.connected_region or target.connected_region, error, entrance.world.id)
if entrance.connected_region:
restore_connections(entrance, target)
if entrance.connected_region == None:
raise EntranceShuffleError('No more valid entrances to replace with %s in world %d' % (entrance, entrance.world.id))
# Check and validate that an entrance is compatible to replace a specific target
def check_entrances_compatibility(entrance, target):
# An entrance shouldn't be connected to its own scene, so we fail in that situation
if entrance.parent_region.get_scene() and entrance.parent_region.get_scene() == target.connected_region.get_scene():
raise EntranceShuffleError('Self scene connections are forbidden')
# Validate the provided worlds' structures, raising an error if it's not valid based on our criterias
def validate_world(world, worlds, entrance_placed, locations_to_ensure_reachable, itempool):
if not world.decouple_entrances:
# Unless entrances are decoupled, we don't want the player to end up through certain entrances as the wrong age
# This means we need to hard check that none of the relevant entrances are ever reachable as that age
# This is mostly relevant when mixing entrance pools or shuffling special interiors (such as windmill or kak potion shop)
# Warp Songs and Overworld Spawns can also end up inside certain indoors so those need to be handled as well
CHILD_FORBIDDEN = ['Ganons Castle Fairy -> Castle Grounds', 'Carpenter Tent -> Gerudo Valley Far Side']
ADULT_FORBIDDEN = ['Hyrule Castle Fairy -> Castle Grounds', 'Castle Storms Grotto -> Castle Grounds']
for entrance in world.get_shufflable_entrances():
if entrance.shuffled:
if entrance.replaces:
if entrance.replaces.name in CHILD_FORBIDDEN and not entrance_unreachable_as(entrance, 'child', already_checked=[entrance.replaces.reverse]):
raise EntranceShuffleError('%s is replaced by an entrance with a potential child access' % entrance.replaces.name)
elif entrance.replaces.name in ADULT_FORBIDDEN and not entrance_unreachable_as(entrance, 'adult', already_checked=[entrance.replaces.reverse]):
raise EntranceShuffleError('%s is replaced by an entrance with a potential adult access' % entrance.replaces.name)
else:
if entrance.name in CHILD_FORBIDDEN and not entrance_unreachable_as(entrance, 'child', already_checked=[entrance.reverse]):
raise EntranceShuffleError('%s is potentially accessible as child' % entrance.name)
elif entrance.name in ADULT_FORBIDDEN and not entrance_unreachable_as(entrance, 'adult', already_checked=[entrance.reverse]):
raise EntranceShuffleError('%s is potentially accessible as adult' % entrance.name)
if locations_to_ensure_reachable:
max_playthrough = Playthrough.max_explore([w.state for w in worlds], itempool)
# If ALR is enabled, ensure all locations we want to keep reachable are indeed still reachable
# Otherwise, just continue if the game is still beatable
if not (world.check_beatable_only and max_playthrough.can_beat_game(False)):
max_playthrough.visit_locations(locations_to_ensure_reachable)
for location in locations_to_ensure_reachable:
if not max_playthrough.visited(location):
raise EntranceShuffleError('%s is unreachable' % location.name)
if (world.shuffle_special_interior_entrances or world.shuffle_overworld_entrances or world.spawn_positions) and \
(entrance_placed == None or world.mix_entrance_pools or entrance_placed.type in ['SpecialInterior', 'Overworld', 'Spawn', 'WarpSong', 'OwlDrop']):
# At least one valid starting region with all basic refills should be reachable without using any items at the beginning of the seed
# Note this creates an empty State rather than reuse world.state (which already has starting items).
no_items_playthrough = Playthrough([State(w) for w in worlds])
valid_starting_regions = ['Kokiri Forest', 'Kakariko Village']
if not any(region for region in valid_starting_regions if no_items_playthrough.can_reach(world.get_region(region))):
raise EntranceShuffleError('Invalid starting area')
# Check that a region where time passes is always reachable as both ages without having collected any items (except in closed forest)
time_travel_playthrough = Playthrough.with_items([w.state for w in worlds], [ItemFactory('Time Travel', world=w) for w in worlds])
if not (any(region for region in time_travel_playthrough.reachable_regions('child') if region.time_passes and region.world == world) and
any(region for region in time_travel_playthrough.reachable_regions('adult') if region.time_passes and region.world == world)):
raise EntranceShuffleError('Time passing is not guaranteed as both ages')
# The player should be able to get back to ToT after going through time, without having collected any items
# This is important to ensure that the player never loses access to the pedestal after going through time
if world.starting_age == 'child' and not time_travel_playthrough.can_reach(world.get_region('Temple of Time'), age='adult'):
raise EntranceShuffleError('Path to Temple of Time as adult is not guaranteed')
elif world.starting_age == 'adult' and not time_travel_playthrough.can_reach(world.get_region('Temple of Time'), age='child'):
raise EntranceShuffleError('Path to Temple of Time as child is not guaranteed')
if (world.shuffle_interior_entrances or world.shuffle_overworld_entrances) and \
(entrance_placed == None or world.mix_entrance_pools or entrance_placed.type in ['Interior', 'SpecialInterior', 'Overworld', 'Spawn', 'WarpSong', 'OwlDrop']):
# The Big Poe Shop should always be accessible as adult without the need to use any bottles
# Since we can't guarantee that items in the pool won't be placed behind bottles, we guarantee the access without using any items
# This is important to ensure that players can never lock their only bottles by filling them with Big Poes they can't sell
no_items_time_travel_playthrough = Playthrough.with_items([State(w) for w in worlds], [ItemFactory('Time Travel', world=w) for w in worlds])
if not no_items_time_travel_playthrough.can_reach(world.get_region('Castle Town Rupee Room'), age='adult'):
raise EntranceShuffleError('Big Poe Shop access is not guaranteed as adult')
if world.shuffle_cows:
impas_front_entrance = get_entrance_replacing(world.get_region('Impas House'), 'Kakariko Village -> Impas House')
impas_back_entrance = get_entrance_replacing(world.get_region('Impas House Back'), 'Kakariko Impa Ledge -> Impas House Back')
check_same_hint_region(impas_front_entrance, impas_back_entrance)
# Returns whether or not we can affirm the entrance can never be accessed as the given age
def entrance_unreachable_as(entrance, age, already_checked=None):
if already_checked == None:
already_checked = []
already_checked.append(entrance)
# The following cases determine when we say an entrance is not safe to affirm unreachable as the given age
if entrance.type in ('WarpSong', 'Overworld'):
# Note that we consider all overworld entrances as potentially accessible as both ages, to be completely safe
return False
elif entrance.type == 'OwlDrop':
return age == 'adult'
elif entrance.name == 'Child Spawn -> Links House':
return age == 'adult'
elif entrance.name == 'Adult Spawn -> Temple of Time':
return age == 'child'
# Other entrances such as Interior, Dungeon or Grotto are fine unless they have a parent which is one of the above cases
# Recursively check parent entrances to verify that they are also not reachable as the wrong age
for parent_entrance in entrance.parent_region.entrances:
if parent_entrance in already_checked: continue
unreachable = entrance_unreachable_as(parent_entrance, age, already_checked)
if not unreachable:
return False
return True
# Shorthand function to check and validate that two entrances are in the same hint region
def check_same_hint_region(first, second):
if first.parent_region.hint is not None and second.parent_region.hint is not None and \
first.parent_region.hint != second.parent_region.hint:
raise EntranceShuffleError('Entrances are not in the same hint region')
# Shorthand function to find an entrance with the requested name leading to a specific region
def get_entrance_replacing(region, entrance_name):
try:
return next(filter(lambda entrance: entrance.replaces and entrance.replaces.name == entrance_name, region.entrances))
except StopIteration:
return region.world.get_entrance(entrance_name)
# Change connections between an entrance and a target assumed entrance, in order to test the connections afterwards if necessary
def change_connections(entrance, target_entrance):
entrance.connect(target_entrance.disconnect())
entrance.replaces = target_entrance.replaces
if entrance.reverse and not entrance.world.decouple_entrances:
target_entrance.replaces.reverse.connect(entrance.reverse.assumed.disconnect())
target_entrance.replaces.reverse.replaces = entrance.reverse
# Restore connections between an entrance and a target assumed entrance
def restore_connections(entrance, target_entrance):
target_entrance.connect(entrance.disconnect())
entrance.replaces = None
if entrance.reverse and not entrance.world.decouple_entrances:
entrance.reverse.assumed.connect(target_entrance.replaces.reverse.disconnect())
target_entrance.replaces.reverse.replaces = None
# Confirm the replacement of a target entrance by a new entrance, logging the new connections and completely deleting the target entrances
def confirm_replacement(entrance, target_entrance):
delete_target_entrance(target_entrance)
logging.getLogger('').debug('Connected %s To %s [World %d]', entrance, entrance.connected_region, entrance.world.id)
if entrance.reverse and not entrance.world.decouple_entrances:
replaced_reverse = target_entrance.replaces.reverse
delete_target_entrance(entrance.reverse.assumed)
logging.getLogger('').debug('Connected %s To %s [World %d]', replaced_reverse, replaced_reverse.connected_region, replaced_reverse.world.id)
# Delete an assumed target entrance, by disconnecting it if needed and removing it from its parent region
def delete_target_entrance(target_entrance):
if target_entrance.connected_region != None:
target_entrance.disconnect()
if target_entrance.parent_region != None:
target_entrance.parent_region.exits.remove(target_entrance)
target_entrance.parent_region = None