Core/Subnautica: demonstrate a way to on-demand specify WebWorld

worlds/AutoWorld.py

@@ -39,7 +39,8 @@ class AutoWorldRegister(type):
 
     def __new__(mcs, name: str, bases: Tuple[type, ...], dct: Dict[str, Any]) -> AutoWorldRegister:
         if "web" in dct:
-            assert isinstance(dct["web"], WebWorld), "WebWorld has to be instantiated."
+            assert isinstance(dct["web"], WebWorld) or isinstance(dct["web"], staticproperty), \
+                "WebWorld has to be instantiated."
         # filter out any events
         dct["item_name_to_id"] = {name: id for name, id in dct["item_name_to_id"].items() if id}
         dct["location_name_to_id"] = {name: id for name, id in dct["location_name_to_id"].items() if id}
@@ -484,6 +485,11 @@ class LogicMixin(metaclass=AutoLogicRegister):
     pass
 
 
+class staticproperty(staticmethod):
+    def __get__(self, *args):
+        return self.__func__()
+
+
 def data_package_checksum(data: "GamesPackage") -> str:
     """Calculates the data package checksum for a game from a dict"""
     assert "checksum" not in data, "Checksum already in data"

worlds/subnautica/__init__.py

@@ -5,7 +5,8 @@ import itertools
 from typing import List, Dict, Any, cast
 
 from BaseClasses import Region, Entrance, Location, Item, Tutorial, ItemClassification
-from worlds.AutoWorld import World, WebWorld
+from worlds.AutoWorld import World, WebWorld, staticproperty
+from Utils import cache_argsless
 from . import items
 from . import locations
 from . import creatures
@@ -16,21 +17,26 @@ from .rules import set_rules
 logger = logging.getLogger("Subnautica")
 
 
-class SubnaticaWeb(WebWorld):
-    tutorials = [Tutorial(
-        "Multiworld Setup Guide",
-        "A guide to setting up the Subnautica randomizer connected to an Archipelago Multiworld",
-        "English",
-        "setup_en.md",
-        "setup/en",
-        ["Berserker"]
-    )]
-
-
 all_locations = {data["name"]: loc_id for loc_id, data in locations.location_table.items()}
 all_locations.update(creatures.creature_locations)
 
 
+@staticproperty
+@cache_argsless
+def web():
+    class SubnaticaWeb(WebWorld):
+        tutorials = [Tutorial(
+            "Multiworld Setup Guide",
+            "A guide to setting up the Subnautica randomizer connected to an Archipelago Multiworld",
+            "English",
+            "setup_en.md",
+            "setup/en",
+            ["Berserker"]
+        )]
+
+    return SubnaticaWeb()
+
+
 class SubnauticaWorld(World):
     """
     Subnautica is an undersea exploration game. Stranded on an alien world, you become infected by
@@ -38,7 +44,7 @@ class SubnauticaWorld(World):
     You must find a cure for yourself, build an escape rocket, and leave the planet.
     """
     game = "Subnautica"
-    web = SubnaticaWeb()
+    web = web
 
     item_name_to_id = {data.name: item_id for item_id, data in items.item_table.items()}
     location_name_to_id = all_locations