1 files changed, 105 insertions, 1 deletions

@@ -1,8 +1,112 @@
-from BaseClasses import Location
+from enum import Enum
+from typing import TYPE_CHECKING
+
+from BaseClasses import Location, Item, Region, CollectionState, Entrance
+from .items import Lingo2Item
+from .rules import AccessRequirements
+
+if TYPE_CHECKING:
+    from . import Lingo2World
+
+
+class LetterPlacementType(Enum):
+    ANY = 0
+    DISALLOW = 1
+    FORCE = 2
+
+
+def get_required_regions(reqs: AccessRequirements, world: "Lingo2World",
+                         regions: dict[str, Region] | None) -> list[Region]:
+    # Replace required rooms with regions for the top level requirement, which saves looking up the regions during rule
+    # checking.
+    if regions is not None:
+        return [regions[room_name] for room_name in reqs.rooms]
+    else:
+        return [world.multiworld.get_region(room_name, world.player) for room_name in reqs.rooms]
 
 
 class Lingo2Location(Location):
     game: str = "Lingo 2"
 
+    reqs: AccessRequirements | None
+    world: "Lingo2World"
+    required_regions: list[Region]
+
     port_id: int
     goal: bool
+    letter_placement_type: LetterPlacementType
+
+    @classmethod
+    def non_event_location(cls, world: "Lingo2World", code: int, region: Region):
+        result = cls(world.player, world.static_logic.location_id_to_name[code], code, region)
+        result.reqs = None
+        result.world = world
+        result.required_regions = []
+
+        return result
+
+    @classmethod
+    def event_location(cls, world: "Lingo2World", name: str, region: Region):
+        result = cls(world.player, name, None, region)
+        result.reqs = None
+        result.world = world
+        result.required_regions = []
+
+        return result
+
+    def set_access_rule(self, reqs: AccessRequirements, regions: dict[str, Region] | None):
+        self.reqs = reqs
+        self.required_regions = get_required_regions(reqs, self.world, regions)
+        self.access_rule = self._l2_access_rule
+
+    def _l2_access_rule(self, state: CollectionState) -> bool:
+        if self.reqs is not None and not self.reqs.check_access(state, self.world):
+            return False
+
+        if not all(state.can_reach(region) for region in self.required_regions):
+            return False
+
+        return True
+
+    def set_up_letter_rule(self, lpt: LetterPlacementType):
+        self.letter_placement_type = lpt
+        self.item_rule = self._l2_item_rule
+
+    def _l2_item_rule(self, item: Item) -> bool:
+        if not isinstance(item, Lingo2Item):
+            return True
+
+        if self.letter_placement_type == LetterPlacementType.FORCE:
+            return item.is_letter
+        elif self.letter_placement_type == LetterPlacementType.DISALLOW:
+            return not item.is_letter
+
+        return True
+
+
+class Lingo2Entrance(Entrance):
+    reqs: AccessRequirements | None
+    world: "Lingo2World"
+    required_regions: list[Region]
+
+    def __init__(self, world: "Lingo2World", description: str, region: Region):
+        super().__init__(world.player, description, region)
+
+        self.reqs = None
+        self.world = world
+        self.required_regions = []
+
+    def set_access_rule(self, reqs: AccessRequirements, regions: dict[str, Region] | None):
+        self.reqs = reqs
+        self.required_regions = get_required_regions(reqs, self.world, regions)
+        self.access_rule = self._l2_access_rule
+
+    def _l2_access_rule(self, state: CollectionState) -> bool:
+        if self.reqs is not None and not self.reqs.check_access(state, self.world):
+            return False
+
+        if not all(state.can_reach(region) for region in self.required_regions):
+            return False
+
+        return True
+