Core: Add connect_entrances world step/stage (#4420)

* Add connect_entrances

* update ER docs

* fix that test, but also ew

* Add a test that asserts the new finalization

* Rewrite test a bit

* rewrite some more

* blank line

* rewrite rewrite rewrite

* rewrite rewrite rewrite

* RE. WRITE.

* oops

* Bruh

* I guess, while we're at it

* giga oops

* It's been a long day

* Switch KH1 over to this design with permission of GICU

* Revert

* Oops

* Bc I like it

* Update locations.py

test/general/__init__.py

@@ -5,7 +5,15 @@ from BaseClasses import CollectionState, Item, ItemClassification, Location, Mul
 from worlds import network_data_package
 from worlds.AutoWorld import World, call_all
 
-gen_steps = ("generate_early", "create_regions", "create_items", "set_rules", "generate_basic", "pre_fill")
+gen_steps = (
+    "generate_early",
+    "create_regions",
+    "create_items",
+    "set_rules",
+    "connect_entrances",
+    "generate_basic",
+    "pre_fill",
+)
 
 
 def setup_solo_multiworld(

test/general/test_entrances.py

@@ -0,0 +1,36 @@
+import unittest
+from worlds.AutoWorld import AutoWorldRegister, call_all, World
+from . import setup_solo_multiworld
+
+
+class TestBase(unittest.TestCase):
+    def test_entrance_connection_steps(self):
+        """Tests that Entrances are connected and not changed after connect_entrances."""
+        def get_entrance_name_to_source_and_target_dict(world: World):
+            return [
+                (entrance.name, entrance.parent_region, entrance.connected_region)
+                for entrance in world.get_entrances()
+            ]
+
+        gen_steps = ("generate_early", "create_regions", "create_items", "set_rules", "connect_entrances")
+        additional_steps = ("generate_basic", "pre_fill")
+
+        for game_name, world_type in AutoWorldRegister.world_types.items():
+            with self.subTest("Game", game_name=game_name):
+                multiworld = setup_solo_multiworld(world_type, gen_steps)
+
+                original_entrances = get_entrance_name_to_source_and_target_dict(multiworld.worlds[1])
+
+                self.assertTrue(
+                    all(entrance[1] is not None and entrance[2] is not None for entrance in original_entrances),
+                    f"{game_name} had unconnected entrances after connect_entrances"
+                )
+
+                for step in additional_steps:
+                    with self.subTest("Step", step=step):
+                        call_all(multiworld, step)
+                        step_entrances = get_entrance_name_to_source_and_target_dict(multiworld.worlds[1])
+
+                        self.assertEqual(
+                            original_entrances, step_entrances, f"{game_name} modified entrances during {step}"
+                        )

test/general/test_items.py

@@ -67,7 +67,7 @@ class TestBase(unittest.TestCase):
     def test_itempool_not_modified(self):
         """Test that worlds don't modify the itempool after `create_items`"""
         gen_steps = ("generate_early", "create_regions", "create_items")
-        additional_steps = ("set_rules", "generate_basic", "pre_fill")
+        additional_steps = ("set_rules", "connect_entrances", "generate_basic", "pre_fill")
         excluded_games = ("Links Awakening DX", "Ocarina of Time", "SMZ3")
         worlds_to_test = {game: world
                           for game, world in AutoWorldRegister.world_types.items() if game not in excluded_games}
@@ -84,7 +84,7 @@ class TestBase(unittest.TestCase):
     def test_locality_not_modified(self):
         """Test that worlds don't modify the locality of items after duplicates are resolved"""
         gen_steps = ("generate_early", "create_regions", "create_items")
-        additional_steps = ("set_rules", "generate_basic", "pre_fill")
+        additional_steps = ("set_rules", "connect_entrances", "generate_basic", "pre_fill")
         worlds_to_test = {game: world for game, world in AutoWorldRegister.world_types.items()}
         for game_name, world_type in worlds_to_test.items():
             with self.subTest("Game", game=game_name):

test/general/test_locations.py

@@ -45,6 +45,12 @@ class TestBase(unittest.TestCase):
                 self.assertEqual(location_count, len(multiworld.get_locations()),
                                  f"{game_name} modified locations count during rule creation")
 
+                call_all(multiworld, "connect_entrances")
+                self.assertEqual(region_count, len(multiworld.get_regions()),
+                                 f"{game_name} modified region count during rule creation")
+                self.assertEqual(location_count, len(multiworld.get_locations()),
+                                 f"{game_name} modified locations count during rule creation")
+
                 call_all(multiworld, "generate_basic")
                 self.assertEqual(region_count, len(multiworld.get_regions()),
                                  f"{game_name} modified region count during generate_basic")

test/general/test_reachability.py

@@ -2,11 +2,11 @@ import unittest
 
 from BaseClasses import CollectionState
 from worlds.AutoWorld import AutoWorldRegister
-from . import setup_solo_multiworld
+from . import setup_solo_multiworld, gen_steps
 
 
 class TestBase(unittest.TestCase):
-    gen_steps = ["generate_early", "create_regions", "create_items", "set_rules", "generate_basic", "pre_fill"]
+    gen_steps = gen_steps
 
     default_settings_unreachable_regions = {
         "A Link to the Past": {