1 files changed, 416 insertions, 55 deletions

@@ -1,6 +1,11 @@
+from enum import IntEnum, auto
+
 from .generated import data_pb2 as data_pb2
+from .items import SYMBOL_ITEMS
 from typing import TYPE_CHECKING, NamedTuple
 
+from .options import ShuffleLetters, CyanDoorBehavior
+
 if TYPE_CHECKING:
     from . import Lingo2World
 
@@ -12,64 +17,175 @@ def calculate_letter_histogram(solution: str) -> dict[str, int]:
             real_l = l.upper()
             histogram[real_l] = min(histogram.get(real_l, 0) + 1, 2)
 
-    for free_letter in "HINT":
-        if histogram.get(free_letter, 0) == 1:
-            del histogram[free_letter]
-
     return histogram
 
 
 class AccessRequirements:
     items: set[str]
+    progressives: dict[str, int]
     rooms: set[str]
-    symbols: set[str]
     letters: dict[str, int]
+    cyans: bool
 
     # This is an AND of ORs.
     or_logic: list[list["AccessRequirements"]]
 
+    # When complete_at is set, at least that many of the requirements in possibilities must be accessible. This should
+    # only be used for doors with complete_at > 1, as or_logic is more efficient for complete_at == 1.
+    complete_at: int | None
+    possibilities: list["AccessRequirements"]
+
     def __init__(self):
         self.items = set()
+        self.progressives = dict()
         self.rooms = set()
-        self.symbols = set()
         self.letters = dict()
+        self.cyans = False
         self.or_logic = list()
+        self.complete_at = None
+        self.possibilities = list()
 
-    def add_solution(self, solution: str):
-        histogram = calculate_letter_histogram(solution)
-
-        for l, a in histogram.items():
-            self.letters[l] = max(self.letters.get(l, 0), histogram.get(l))
+    def copy(self) -> "AccessRequirements":
+        reqs = AccessRequirements()
+        reqs.items = self.items.copy()
+        reqs.progressives = self.progressives.copy()
+        reqs.rooms = self.rooms.copy()
+        reqs.letters = self.letters.copy()
+        reqs.cyans = self.cyans
+        reqs.or_logic = [[other_req.copy() for other_req in disjunction] for disjunction in self.or_logic]
+        reqs.complete_at = self.complete_at
+        reqs.possibilities = self.possibilities.copy()
+        return reqs
 
     def merge(self, other: "AccessRequirements"):
         for item in other.items:
             self.items.add(item)
 
+        for item, amount in other.progressives.items():
+            self.progressives[item] = max(amount, self.progressives.get(item, 0))
+
         for room in other.rooms:
             self.rooms.add(room)
 
-        for symbol in other.symbols:
-            self.symbols.add(symbol)
-
         for letter, level in other.letters.items():
             self.letters[letter] = max(self.letters.get(letter, 0), level)
 
+        self.cyans = self.cyans or other.cyans
+
         for disjunction in other.or_logic:
-            self.or_logic.append(disjunction)
+            self.or_logic.append([sub_req.copy() for sub_req in disjunction])
+
+        if other.complete_at is not None:
+            # Merging multiple requirements that use complete_at sucks, and is part of why we want to minimize use of
+            # it. If both requirements use complete_at, we will cheat by using the or_logic field, which supports
+            # conjunctions of requirements.
+            if self.complete_at is not None:
+                print("Merging requirements with complete_at > 1. This is messy and should be avoided!")
+
+                left_req = AccessRequirements()
+                left_req.complete_at = self.complete_at
+                left_req.possibilities = [sub_req.copy() for sub_req in self.possibilities]
+                self.or_logic.append([left_req])
+
+                self.complete_at = None
+                self.possibilities = list()
+
+                right_req = AccessRequirements()
+                right_req.complete_at = other.complete_at
+                right_req.possibilities = [sub_req.copy() for sub_req in other.possibilities]
+                self.or_logic.append([right_req])
+            else:
+                self.complete_at = other.complete_at
+                self.possibilities = [sub_req.copy() for sub_req in other.possibilities]
+
+    def is_empty(self) -> bool:
+        return (len(self.items) == 0 and len(self.progressives) == 0 and len(self.rooms) == 0 and len(self.letters) == 0
+                and not self.cyans and len(self.or_logic) == 0 and self.complete_at is None)
+
+    def __eq__(self, other: "AccessRequirements"):
+        return (self.items == other.items and self.progressives == other.progressives and self.rooms == other.rooms and
+                self.letters == other.letters and self.cyans == other.cyans and self.or_logic == other.or_logic and
+                self.complete_at == other.complete_at and self.possibilities == other.possibilities)
+
+    def simplify(self):
+        resimplify = False
+
+        if len(self.or_logic) > 0:
+            old_or_logic = self.or_logic
+
+            def remove_redundant(sub_reqs: "AccessRequirements"):
+                new_reqs = sub_reqs.copy()
+                new_reqs.letters = {l: v for l, v in new_reqs.letters.items() if self.letters.get(l, 0) < v}
+                if new_reqs != sub_reqs:
+                    return new_reqs
+                else:
+                    return sub_reqs
+
+            self.or_logic = []
+            for disjunction in old_or_logic:
+                new_disjunction = []
+                for ssr in disjunction:
+                    new_ssr = remove_redundant(ssr)
+                    if not new_ssr.is_empty():
+                        new_disjunction.append(new_ssr)
+                    else:
+                        new_disjunction.clear()
+                        break
+                if len(new_disjunction) == 1:
+                    self.merge(new_disjunction[0])
+                    resimplify = True
+                elif len(new_disjunction) > 1:
+                    if all(cjr == new_disjunction[0] for cjr in new_disjunction):
+                        self.merge(new_disjunction[0])
+                        resimplify = True
+                    else:
+                        self.or_logic.append(new_disjunction)
+
+        if resimplify:
+            self.simplify()
+
+    def get_referenced_rooms(self):
+        result = set(self.rooms)
+
+        for disjunction in self.or_logic:
+            for sub_req in disjunction:
+                result = result.union(sub_req.get_referenced_rooms())
+
+        for sub_req in self.possibilities:
+            result = result.union(sub_req.get_referenced_rooms())
+
+        return result
+
+    def remove_room(self, room: str):
+        if room in self.rooms:
+            self.rooms.remove(room)
+
+        for disjunction in self.or_logic:
+            for sub_req in disjunction:
+                sub_req.remove_room(room)
+
+        for sub_req in self.possibilities:
+            sub_req.remove_room(room)
 
     def __repr__(self):
         parts = []
         if len(self.items) > 0:
             parts.append(f"items={self.items}")
+        if len(self.progressives) > 0:
+            parts.append(f"progressives={self.progressives}")
         if len(self.rooms) > 0:
             parts.append(f"rooms={self.rooms}")
-        if len(self.symbols) > 0:
-            parts.append(f"symbols={self.symbols}")
         if len(self.letters) > 0:
             parts.append(f"letters={self.letters}")
+        if self.cyans:
+            parts.append(f"cyans=True")
         if len(self.or_logic) > 0:
             parts.append(f"or_logic={self.or_logic}")
-        return f"AccessRequirements({", ".join(parts)})"
+        if self.complete_at is not None:
+            parts.append(f"complete_at={self.complete_at}")
+        if len(self.possibilities) > 0:
+            parts.append(f"possibilities={self.possibilities}")
+        return "AccessRequirements(" + ", ".join(parts) + ")"
 
 
 class PlayerLocation(NamedTuple):
@@ -77,13 +193,21 @@ class PlayerLocation(NamedTuple):
     reqs: AccessRequirements
 
 
+class LetterBehavior(IntEnum):
+    VANILLA = auto()
+    ITEM = auto()
+    UNLOCKED = auto()
+
+
 class Lingo2PlayerLogic:
     world: "Lingo2World"
 
+    shuffled_maps: set[int]
+
     locations_by_room: dict[int, list[PlayerLocation]]
     event_loc_item_by_room: dict[int, dict[str, str]]
 
-    item_by_door: dict[int, str]
+    item_by_door: dict[int, tuple[str, int]]
 
     panel_reqs: dict[int, AccessRequirements]
     proxy_reqs: dict[int, dict[str, AccessRequirements]]
@@ -91,6 +215,9 @@ class Lingo2PlayerLogic:
 
     real_items: list[str]
 
+    double_letter_amount: dict[str, int]
+    goal_room_id: int
+
     def __init__(self, world: "Lingo2World"):
         self.world = world
         self.locations_by_room = {}
@@ -100,47 +227,194 @@ class Lingo2PlayerLogic:
         self.proxy_reqs = dict()
         self.door_reqs = dict()
         self.real_items = list()
+        self.double_letter_amount = dict()
+
+        def should_shuffle_map(game_map) -> bool:
+            if game_map.type == data_pb2.MapType.NORMAL_MAP:
+                return True
+            elif game_map.type == data_pb2.MapType.ICARUS:
+                return bool(world.options.enable_icarus)
+            elif game_map.type == data_pb2.MapType.GIFT_MAP:
+                if game_map.name == "the_advanced":
+                    return "The Advanced" in world.options.enable_gift_maps.value
+                elif game_map.name == "the_charismatic":
+                    return "The Charismatic" in world.options.enable_gift_maps.value
+                elif game_map.name == "the_crystalline":
+                    return "The Crystalline" in world.options.enable_gift_maps.value
+                elif game_map.name == "the_fuzzy":
+                    return "The Fuzzy" in world.options.enable_gift_maps.value
+                elif game_map.name == "the_stellar":
+                    return "The Stellar" in world.options.enable_gift_maps.value
+
+            return False
+
+        self.shuffled_maps = set(game_map.id for game_map in world.static_logic.objects.maps
+                                 if should_shuffle_map(game_map))
+
+        maximum_masteries = 13 + len(world.options.enable_gift_maps.value)
+        if world.options.enable_icarus:
+            maximum_masteries += 1
+
+        if world.options.masteries_requirement > maximum_masteries:
+            world.options.masteries_requirement.value = maximum_masteries
+
+        if "The Fuzzy" in world.options.enable_gift_maps.value:
+            self.real_items.append("Numbers")
+
+        if self.world.options.shuffle_doors:
+            for progressive in world.static_logic.objects.progressives:
+                for i in range(0, len(progressive.doors)):
+                    door = world.static_logic.objects.doors[progressive.doors[i]]
+                    if door.map_id not in self.shuffled_maps:
+                        continue
+
+                    self.item_by_door[progressive.doors[i]] = (progressive.name, i + 1)
+                    self.real_items.append(progressive.name)
+
+        for door_group in world.static_logic.objects.door_groups:
+            if door_group.type == data_pb2.DoorGroupType.CONNECTOR:
+                if not self.world.options.shuffle_doors or self.world.options.shuffle_worldports:
+                    continue
+            elif door_group.type == data_pb2.DoorGroupType.COLOR_CONNECTOR:
+                if not self.world.options.shuffle_control_center_colors or self.world.options.shuffle_worldports:
+                    continue
+            elif door_group.type == data_pb2.DoorGroupType.SHUFFLE_GROUP:
+                if not self.world.options.shuffle_doors:
+                    continue
+            else:
+                continue
+
+            shuffleable_doors = [door_id for door_id in door_group.doors
+                                 if world.static_logic.objects.doors[door_id].map_id in self.shuffled_maps]
+
+            if len(shuffleable_doors) > 0:
+                for door in shuffleable_doors:
+                    self.item_by_door[door] = (door_group.name, 1)
+
+                self.real_items.append(door_group.name)
 
         # We iterate through the doors in two parts because it is essential that we determine which doors are shuffled
         # before we calculate any access requirements.
         for door in world.static_logic.objects.doors:
-            if door.type in [data_pb2.DoorType.STANDARD, data_pb2.DoorType.ITEM_ONLY] and self.world.options.shuffle_doors:
-                door_item_name = self.world.static_logic.get_door_item_name(door.id)
-                self.item_by_door[door.id] = door_item_name
-                self.real_items.append(door_item_name)
+            if door.map_id not in self.shuffled_maps:
+                continue
+
+            if door.type in [data_pb2.DoorType.EVENT, data_pb2.DoorType.LOCATION_ONLY, data_pb2.DoorType.GRAVESTONE]:
+                continue
+
+            if door.id in self.item_by_door:
+                continue
+
+            if (door.type in [data_pb2.DoorType.STANDARD, data_pb2.DoorType.ITEM_ONLY] and
+                    not self.world.options.shuffle_doors):
+                continue
+
+            if (door.type == data_pb2.DoorType.CONTROL_CENTER_COLOR and
+                    not self.world.options.shuffle_control_center_colors):
+                continue
+
+            if door.type == data_pb2.DoorType.GALLERY_PAINTING and not self.world.options.shuffle_gallery_paintings:
+                continue
+
+            door_item_name = self.world.static_logic.get_door_item_name(door)
+            self.item_by_door[door.id] = (door_item_name, 1)
+            self.real_items.append(door_item_name)
+
+        # We handle cyan_door_behavior = Item after door shuffle, because cyan doors that are impacted by door shuffle
+        # should be exempt from cyan_door_behavior.
+        if world.options.cyan_door_behavior == CyanDoorBehavior.option_item:
+            for door_group in world.static_logic.objects.door_groups:
+                if door_group.type != data_pb2.DoorGroupType.CYAN_DOORS:
+                    continue
+
+                shuffleable_doors = [door_id for door_id in door_group.doors
+                                     if world.static_logic.objects.doors[door_id].map_id in self.shuffled_maps
+                                     and door_id not in self.item_by_door]
+
+                if len(shuffleable_doors) > 0:
+                    for door in shuffleable_doors:
+                        self.item_by_door[door] = (door_group.name, 1)
+
+                    self.real_items.append(door_group.name)
 
         for door in world.static_logic.objects.doors:
+            if door.map_id not in self.shuffled_maps:
+                continue
+
             if door.type in [data_pb2.DoorType.STANDARD, data_pb2.DoorType.LOCATION_ONLY, data_pb2.DoorType.GRAVESTONE]:
                 self.locations_by_room.setdefault(door.room_id, []).append(PlayerLocation(door.ap_id,
                                                                                           self.get_door_reqs(door.id)))
 
         for letter in world.static_logic.objects.letters:
+            if world.static_logic.get_room_object_map_id(letter) not in self.shuffled_maps:
+                continue
+
             self.locations_by_room.setdefault(letter.room_id, []).append(PlayerLocation(letter.ap_id,
                                                                                         AccessRequirements()))
-
-            letter_name = f"{letter.key.upper()}{'2' if letter.level2 else '1'}"
-            event_name = f"{letter_name} (Collected)"
-            self.event_loc_item_by_room.setdefault(letter.room_id, {})[event_name] = letter.key.upper()
-
-            if letter.level2:
-                event_name = f"{letter_name} (Double Collected)"
-                self.event_loc_item_by_room.setdefault(letter.room_id, {})[event_name] = letter.key.upper()
+            behavior = self.get_letter_behavior(letter.key, letter.level2)
+            if behavior == LetterBehavior.VANILLA:
+                if not world.for_tracker:
+                    letter_name = f"{letter.key.upper()}{'2' if letter.level2 else '1'}"
+                    event_name = f"{letter_name} (Collected)"
+                    self.event_loc_item_by_room.setdefault(letter.room_id, {})[event_name] = letter.key.upper()
+
+                    if letter.level2:
+                        event_name = f"{letter_name} (Double Collected)"
+                        self.event_loc_item_by_room.setdefault(letter.room_id, {})[event_name] = letter.key.upper()
+            elif behavior == LetterBehavior.ITEM:
+                self.real_items.append(letter.key.upper())
+
+            if behavior != LetterBehavior.UNLOCKED:
+                self.double_letter_amount[letter.key.upper()] = self.double_letter_amount.get(letter.key.upper(), 0) + 1
 
         for mastery in world.static_logic.objects.masteries:
+            if world.static_logic.get_room_object_map_id(mastery) not in self.shuffled_maps:
+                continue
+
             self.locations_by_room.setdefault(mastery.room_id, []).append(PlayerLocation(mastery.ap_id,
                                                                                          AccessRequirements()))
 
+            if world.options.masteries_requirement > 0:
+                event_name = f"{world.static_logic.get_room_object_map_name(mastery)} - Mastery (Collected)"
+                self.event_loc_item_by_room.setdefault(mastery.room_id, {})[event_name] = "Mastery"
+
         for ending in world.static_logic.objects.endings:
-            self.locations_by_room.setdefault(ending.room_id, []).append(PlayerLocation(ending.ap_id,
-                                                                                        AccessRequirements()))
+            if world.static_logic.get_room_object_map_id(ending) not in self.shuffled_maps:
+                continue
 
-            event_name = f"{ending.name.capitalize()} Ending (Achieved)"
-            item_name = event_name
+            # Don't create a location for your selected ending. Also don't create a location for White Ending if it's
+            # necessarily in the postgame, i.e. it requires all 12 other endings.
+            if world.options.victory_condition.current_key.removesuffix("_ending").upper() != ending.name\
+                    and (ending.name != "WHITE" or world.options.endings_requirement < 12):
+                self.locations_by_room.setdefault(ending.room_id, []).append(PlayerLocation(ending.ap_id,
+                                                                                            AccessRequirements()))
 
             if world.options.victory_condition.current_key.removesuffix("_ending").upper() == ending.name:
-                item_name = "Victory"
+                event_name = f"{ending.name.capitalize()} Ending (Goal)"
+                self.event_loc_item_by_room.setdefault(ending.room_id, {})[event_name] = "Victory"
+                self.goal_room_id = ending.room_id
+
+            if ending.name != "WHITE":
+                event_name = f"{ending.name.capitalize()} Ending (Achieved)"
+                self.event_loc_item_by_room.setdefault(ending.room_id, {})[event_name] = "Ending"
+
+        if self.world.options.keyholder_sanity:
+            for keyholder in world.static_logic.objects.keyholders:
+                if keyholder.HasField("key"):
+                    if world.static_logic.get_room_object_map_id(keyholder) not in self.shuffled_maps:
+                        continue
+
+                    reqs = AccessRequirements()
 
-            self.event_loc_item_by_room.setdefault(ending.room_id, {})[event_name] = item_name
+                    if self.get_letter_behavior(keyholder.key, False) != LetterBehavior.UNLOCKED:
+                        reqs.letters[keyholder.key.upper()] = 1
+
+                    self.locations_by_room.setdefault(keyholder.room_id, []).append(PlayerLocation(keyholder.ap_id,
+                                                                                                   reqs))
+
+        if self.world.options.shuffle_symbols:
+            for symbol_name in SYMBOL_ITEMS.values():
+                self.real_items.append(symbol_name)
 
     def get_panel_reqs(self, panel_id: int, answer: str | None) -> AccessRequirements:
         if answer is None:
@@ -161,28 +435,38 @@ class Lingo2PlayerLogic:
         reqs.rooms.add(self.world.static_logic.get_room_region_name(panel.room_id))
 
         if answer is not None:
-            reqs.add_solution(answer)
+            self.add_solution_reqs(reqs, answer)
         elif len(panel.proxies) > 0:
             possibilities = []
+            already_filled = False
 
             for proxy in panel.proxies:
                 proxy_reqs = AccessRequirements()
-                proxy_reqs.add_solution(proxy.answer)
+                self.add_solution_reqs(proxy_reqs, proxy.answer)
 
-                possibilities.append(proxy_reqs)
+                if not proxy_reqs.is_empty():
+                    possibilities.append(proxy_reqs)
+                else:
+                    already_filled = True
+                    break
 
-            if not any(proxy.answer == panel.answer for proxy in panel.proxies):
+            if not already_filled and not any(proxy.answer == panel.answer for proxy in panel.proxies):
                 proxy_reqs = AccessRequirements()
-                proxy_reqs.add_solution(panel.answer)
+                self.add_solution_reqs(proxy_reqs, panel.answer)
 
-                possibilities.append(proxy_reqs)
+                if not proxy_reqs.is_empty():
+                    possibilities.append(proxy_reqs)
+                else:
+                    already_filled = True
 
-            reqs.or_logic.append(possibilities)
+            if not already_filled:
+                reqs.or_logic.append(possibilities)
         else:
-            reqs.add_solution(panel.answer)
+            self.add_solution_reqs(reqs, panel.answer)
 
-        for symbol in panel.symbols:
-            reqs.symbols.add(symbol)
+        if self.world.options.shuffle_symbols:
+            for symbol in panel.symbols:
+                reqs.items.add(SYMBOL_ITEMS.get(symbol))
 
         if panel.HasField("required_door"):
             door_reqs = self.get_door_open_reqs(panel.required_door)
@@ -205,22 +489,45 @@ class Lingo2PlayerLogic:
         door = self.world.static_logic.objects.doors[door_id]
         reqs = AccessRequirements()
 
-        # TODO: control_center_color, switches
         if not door.HasField("complete_at") or door.complete_at == 0:
             for proxy in door.panels:
                 panel_reqs = self.get_panel_reqs(proxy.panel, proxy.answer if proxy.HasField("answer") else None)
                 reqs.merge(panel_reqs)
         elif door.complete_at == 1:
-            reqs.or_logic.append([self.get_panel_reqs(proxy.panel,
-                                                      proxy.answer if proxy.HasField("answer") else None)
-                                  for proxy in door.panels])
+            disjunction = []
+            for proxy in door.panels:
+                proxy_reqs = self.get_panel_reqs(proxy.panel, proxy.answer if proxy.HasField("answer") else None)
+                if proxy_reqs.is_empty():
+                    disjunction.clear()
+                    break
+                else:
+                    disjunction.append(proxy_reqs)
+            if len(disjunction) > 0:
+                reqs.or_logic.append(disjunction)
         else:
-            # TODO: Handle complete_at > 1
-            pass
+            reqs.complete_at = door.complete_at
+            for proxy in door.panels:
+                panel_reqs = self.get_panel_reqs(proxy.panel, proxy.answer if proxy.HasField("answer") else None)
+                reqs.possibilities.append(panel_reqs)
+
+        if door.HasField("control_center_color"):
+            reqs.rooms.add("Control Center - Main Area")
+            self.add_solution_reqs(reqs, door.control_center_color)
+
+        if door.double_letters:
+            if self.world.options.cyan_door_behavior == CyanDoorBehavior.option_collect_h2:
+                reqs.rooms.add("The Repetitive - Main Room")
+            elif self.world.options.cyan_door_behavior == CyanDoorBehavior.option_any_double_letter:
+                if self.world.options.shuffle_letters != ShuffleLetters.option_unlocked:
+                    reqs.cyans = True
+            elif self.world.options.cyan_door_behavior == CyanDoorBehavior.option_item:
+                # There shouldn't be any locations that are cyan doors.
+                pass
 
         for keyholder_uses in door.keyholders:
             key_name = keyholder_uses.key.upper()
-            if key_name not in reqs.letters:
+            if (self.get_letter_behavior(keyholder_uses.key, False) != LetterBehavior.UNLOCKED
+                    and key_name not in reqs.letters):
                 reqs.letters[key_name] = 1
 
             keyholder = self.world.static_logic.objects.keyholders[keyholder_uses.keyholder]
@@ -229,10 +536,19 @@ class Lingo2PlayerLogic:
         for room in door.rooms:
             reqs.rooms.add(self.world.static_logic.get_room_region_name(room))
 
+        if door.white_ending:
+            if self.world.options.endings_requirement > 0:
+                reqs.progressives["Ending"] = self.world.options.endings_requirement.value
+
+            if self.world.options.masteries_requirement > 0:
+                reqs.progressives["Mastery"] = self.world.options.masteries_requirement.value
+
         for sub_door_id in door.doors:
             sub_reqs = self.get_door_open_reqs(sub_door_id)
             reqs.merge(sub_reqs)
 
+        reqs.simplify()
+
         return reqs
 
     # This gets the requirements to open a door within the world. When a door is shuffled, this means having the item
@@ -240,8 +556,53 @@ class Lingo2PlayerLogic:
     def get_door_open_reqs(self, door_id: int) -> AccessRequirements:
         if door_id in self.item_by_door:
             reqs = AccessRequirements()
-            reqs.items.add(self.item_by_door.get(door_id))
+
+            item_name, amount = self.item_by_door.get(door_id)
+            if amount == 1:
+                reqs.items.add(item_name)
+            else:
+                reqs.progressives[item_name] = amount
 
             return reqs
         else:
             return self.get_door_reqs(door_id)
+
+    def get_letter_behavior(self, letter: str, level2: bool) -> LetterBehavior:
+        if self.world.options.shuffle_letters == ShuffleLetters.option_unlocked:
+            return LetterBehavior.UNLOCKED
+
+        if self.world.options.shuffle_letters in [ShuffleLetters.option_vanilla_cyan, ShuffleLetters.option_item_cyan]:
+            if level2:
+                if self.world.options.shuffle_letters == ShuffleLetters.option_vanilla_cyan:
+                    return LetterBehavior.VANILLA
+                else:
+                    return LetterBehavior.ITEM
+            else:
+                return LetterBehavior.UNLOCKED
+
+        if not level2 and letter in ["h", "i", "n", "t"]:
+            return LetterBehavior.UNLOCKED
+
+        if self.world.options.shuffle_letters == ShuffleLetters.option_progressive:
+            return LetterBehavior.ITEM
+
+        return LetterBehavior.VANILLA
+
+    def add_solution_reqs(self, reqs: AccessRequirements, solution: str):
+        histogram = calculate_letter_histogram(solution)
+
+        for l, a in histogram.items():
+            needed = min(a, 2)
+            level2 = (needed == 2)
+
+            if level2 and self.get_letter_behavior(l.lower(), True) == LetterBehavior.UNLOCKED:
+                needed = 1
+
+            if self.get_letter_behavior(l.lower(), False) == LetterBehavior.UNLOCKED:
+                needed = needed - 1
+
+            if needed > 0:
+                reqs.letters[l] = max(reqs.letters.get(l, 0), needed)
+
+        if any(l.isnumeric() for l in solution):
+            reqs.items.add("Numbers")