Core: add panic_method setting (#3261)

settings.py

@@ -665,6 +665,14 @@ class GeneratorOptions(Group):
         OFF = 0
         ON = 1
 
+    class PanicMethod(str):
+        """
+        What to do if the current item placements appear unsolvable.
+        raise -> Raise an exception and abort.
+        swap -> Attempt to fix it by swapping prior placements around. (Default)
+        start_inventory -> Move remaining items to start_inventory, generate additional filler items to fill locations.
+        """
+
     enemizer_path: EnemizerPath = EnemizerPath("EnemizerCLI/EnemizerCLI.Core")  # + ".exe" is implied on Windows
     player_files_path: PlayerFilesPath = PlayerFilesPath("Players")
     players: Players = Players(0)
@@ -673,6 +681,7 @@ class GeneratorOptions(Group):
     spoiler: Spoiler = Spoiler(3)
     race: Race = Race(0)
     plando_options: PlandoOptions = PlandoOptions("bosses, connections, texts")
+    panic_method: PanicMethod = PanicMethod("swap")
 
 
 class SNIOptions(Group):