Grid of Rooms Generation

Grid of Rooms Generation, known internally as GridFloorGen, is a type of FloorGen. It generates by first creating a grid of rooms. Then, it plans out their dimensions, filling in the tile details.

Usage

Grid of Rooms is the most common approach to dungeon generation. It works similar to List of Rooms Generation, but uses a pre-applied grid to structure itself. There are multiple unique templates available in PMDO for floor shape.

Generation Process

Image	Step Description
	InitGridPlanStep initializes a grid of cells.
	Next, a path generator, such as GridPathBranch, is used to place rooms (blue) in the grid, with connecting halls (yellow) between them. Each room and hall filled here is also assigned an algorithm.
	Then, DrawGridTOFloorStep translates the grid rooms and connectors into a list of rooms and halls.
	First, each room algorithm chooses the room size and location.
	Next, the rooms signal what connections they require to their halls. Their size is chosen.
	Finally, a list of rooms and halls is written.
	The list of rooms and halls are then translated into tiles using DrawFloorToTileStep.
	Each room generates its tiles.
	Then, the hall algorithm generates.
	All the floor tiles are now generated successfully.
	Finally, using FloorStairsStep, the start and end tiles are marked. First, two separate rooms (pink) are selected. Then, a tile (purple) is selected to place the marker.