Landstalker: Fixed rare generation issues (#3353)

Co-authored-by: Fabian Dill <[email protected]>

Author: Dinopony

worlds/landstalker/Hints.py

@@ -30,6 +30,9 @@ def generate_lithograph_hint(world: "LandstalkerWorld"):
     jewel_items = world.jewel_items
 
     for item in jewel_items:
+        if item.location is None:
+            continue
+
         # Jewel hints are composed of 4 'words' shuffled randomly:
         # - the name of the player whose world contains said jewel (if not ours)
         # - the color of the jewel (if relevant)
@@ -61,7 +64,7 @@ def generate_random_hints(world: "LandstalkerWorld"):
     excluded_items = ["Life Stock", "EkeEke"]
 
     progression_items = [item for item in multiworld.itempool if item.advancement and
-                         item.name not in excluded_items]
+                         item.name not in excluded_items and item.location is not None]
 
     local_own_progression_items = [item for item in progression_items if item.player == this_player
                                    and item.location.player == this_player]

worlds/landstalker/Locations.py

@@ -1,8 +1,9 @@
 from typing import Dict, Optional
 
-from BaseClasses import Location
+from BaseClasses import Location, ItemClassification, Item
 from .Regions import LandstalkerRegion
 from .data.item_source import ITEM_SOURCES_JSON
+from .data.world_path import WORLD_PATHS_JSON
 
 BASE_LOCATION_ID = 4000
 BASE_GROUND_LOCATION_ID = BASE_LOCATION_ID + 256
@@ -28,6 +29,18 @@ def create_locations(player: int, regions_table: Dict[str, LandstalkerRegion], n
         new_location = LandstalkerLocation(player, data["name"], name_to_id_table[data["name"]], region, data["type"])
         region.locations.append(new_location)
 
+    # Create fake event locations that will be used to determine if some key regions has been visited
+    regions_with_entrance_checks = []
+    for data in WORLD_PATHS_JSON:
+        if "requiredNodes" in data:
+            regions_with_entrance_checks.extend([region_id for region_id in data["requiredNodes"]])
+    regions_with_entrance_checks = list(set(regions_with_entrance_checks))
+    for region_id in regions_with_entrance_checks:
+        region = regions_table[region_id]
+        location = LandstalkerLocation(player, 'event_visited_' + region_id, None, region, "event")
+        location.place_locked_item(Item("event_visited_" + region_id, ItemClassification.progression, None, player))
+        region.locations.append(location)
+
     # Create a specific end location that will contain a fake win-condition item
     end_location = LandstalkerLocation(player, "End", None, regions_table["end"], "reward")
     regions_table["end"].locations.append(end_location)

worlds/landstalker/Regions.py

@@ -37,7 +37,7 @@ def create_regions(world: "LandstalkerWorld"):
     for code, region_data in WORLD_NODES_JSON.items():
         random_hint_name = None
         if "hints" in region_data:
-            random_hint_name = multiworld.random.choice(region_data["hints"])
+            random_hint_name = world.random.choice(region_data["hints"])
         region = LandstalkerRegion(code, region_data["name"], player, multiworld, random_hint_name)
         regions_table[code] = region
         multiworld.regions.append(region)

worlds/landstalker/Rules.py

@@ -10,7 +10,7 @@
 
 
 def _landstalker_has_visited_regions(state: CollectionState, player: int, regions):
-    return all([state.can_reach(region, None, player) for region in regions])
+    return all(state.has("event_visited_" + region.code, player) for region in regions)
 
 
 def _landstalker_has_health(state: CollectionState, player: int, health):

worlds/landstalker/__init__.py

@@ -204,6 +204,9 @@ def set_rules(self):
             for location in self.multiworld.get_locations(self.player):
                 if location.parent_region.name in excluded_regions:
                     location.progress_type = LocationProgressType.EXCLUDED
+                # We need to make that event non-progression since it would crash generation in reach_kazalt goal
+                if location.item is not None and location.item.name == "event_visited_king_nole_labyrinth_raft_entrance":
+                    location.item.classification = ItemClassification.filler
 
     def get_starting_health(self):
         spawn_id = self.options.spawn_region.current_key