Floor Generation Step

Floor Generation Steps are steps that are used in floor generation. They are responsible for managing and initializing everything about a floor. The order they are performed in is dependent on each step's priority, with all steps having a standardized priority order for base PMDO.

General Steps

Below is a table of commonly used steps, what priorities PMDO places them in, and what they are used for.

Priority	Step	Description
-6	MapDataStep	Sets the music, time limit, and darkness of the floor.
-6	MapNameIDStep	Gives the map a name.
-6	MapTitleDropStep	Makes the map name show up before fading in.
-6	MapEffectStep	Sets event data for the floor.
-6	DefaultMapStatusStep	Sets the base map status of the map.
-2.2	AddDisconnectedRoomsStep	Adds disconnected rooms to the map.
-1	DrawFloorToTileStep	Creates a grid of tiles and draws onto it based on the list of rooms and halls from a RoomFloorGen or GridFloorGen.
0.1	UnbreakableBorderStep	Adds a border of unbreakable tiles at the edge of the map.
0.1	TileBorderStep	Adds a border of the specified tiles at the edge of the map.
1	MoneySpawnStep	Sets the spawn table for money on this floor.
1.1	ItemSpawnStep	Sets the spawn table for items on this floor.
1.2	MobSpawnStep	Sets the spawn table for mobs on this floor.
1.2	MobSpawnSettingsStep	Sets the rules for enemies respawning on the floor.
1.3	TileSpawnStep	Sets the spawn table for traps on this floor.
2	FloorStairsStep	Places the start point and the end stairs on different rooms of the floor, for RoomFloorGen or GridFloorGen.
3	AddTunnelStep	Digs tunnels into the walls starting from a room.
3	PerlinWaterStep	Adds water/lava/etc. using Perlin Noise.
3	BlobWaterStep	Adds water/lava/etc. by placing several blobs made from cellular automata.
3	RoomTerrainStep	Sets terrain in a number of rooms to a certain value.
3.1	DropDiagonalBlockStep	If blobs of terrain are touching diagonally, then they are merged together.
3.2	EraseIsolatedStep	Isolated terrain of the specified type is erased.
4	MapTextureStep	Defines the textures for floors, walls, and water.
4	MapDictTextureStep	Defines the textures in a more advanced way, needed if the layout uses grass.
5	RandomRoomSpawnStep<?, EffectTile>	Spawns traps in random rooms.
5	SpacedRoomSpawnStep<?, EffectTile>	Spawns traps in random rooms, taking care not to place in the same room or adjacent rooms.
5	Pattern Spawn Step	Places placeables on a room in specified patterns.
6	TerminalSpawnStep<?, MoneySpawn>	Spawns money in dead-end rooms.
6.1	DueSpawnStep<?, InvItem, MapEntrance>	Spawns items based on how far they are from the starting room.
6.2	PlaceRandomMobsStep	Randomly places enemies on the map.

Debug Steps

These steps are for debug or testing purposes.

Priority	Step	Description
0	SpecificTilesStep	Sets the floor to specific tiles. Only used for debug.
7	DetectIsolatedStairsStep	Testing step: Looks for a path from start to end and throws an error if none can be found.
7	DetectTileStep	Testing step: Checks to see if a certain tile can be found on the map and throws an error if none can be found.

GridFloorGen Steps

These steps are used exclusively for GridFloorGen.

Priority	Step	Description
-5	InitGridPlanStep	Initializes a grid for GridFloorGen.
-4	GridPathBranch, GridPathCircle, GridPathTwoSides, etc.	Generates a path of rooms and halls for GridFloorGen.
-4	SetGridDefaultsStep	Turns some rooms into halls (1 tile size), for GridFloorGen.
-4	ConnectGridBranchStep	Connects some adjacent rooms, for GridFloorGen.
-4	CombineGridRoomStep	Combines some rooms into larger rooms, for GridFloorGen.
-4	SetGridPlanComponentStep	Tags all rooms in the grid plan as the specified components.
-4	SetGridInnerComponentStep	Tags all rooms on the interior of the grid as the specified components.
-3	DrawGridToFloorStep	Initializes a list of rooms and halls and populates it with the grid from GridFloorGen.

RoomFloorGen Steps

These steps are used exclusively for RoomFloorGen.

Priority	Step	Description
-3	InitFloorPlanStep	Initializes a list of rooms and halls for RoomFloorGen.
-2	FloorPathBranch	Generates a path of rooms and halls for RoomFloorGen.

LoadGen Steps

These steps are used exclusively for LoadGen.

Priority	Step	Description
-7	MappedRoomStep	Loads a dungeon map to use as this floor's layout, including its entities and properties.

StairsFloorGen Steps

These steps are used exclusively for StairsFloorGen.

Priority	Step	Description
-1	InitTilesStep	Sets the floor dimensions and initializes a grid of tiles, for StairsFloorGen.
2	StairsStep	Places the start point and the end stairs on different tiles of the floor, for StairsFloorGen.