Grid and Indexing

Collaboration diagram for Grid and Indexing:

Files
file	DungeonGrid.cs
	Grid model that stores a tile kind per cell and optional room ids.
file	DungeonMapIndex.cs
	Lookup/index data built from the grid and rooms.
file	DungeonMapIndexBuilder.cs
	Builds a DungeonMapIndex from the carved grid and room info.
file	Room.cs
	Carved room representation with bounds, center and derived info.
file	SpecialRoomCompleteBroadcaster.cs
	Emits a "special room solved" event for listeners.

Detailed Description

Grid data, map indices, seeding helpers.