| Safe Haskell | None |
|---|
Game.LambdaHack.Common.Tile
Description
Operations concerning dungeon level tiles.
Unlike for many other content types, there is no type Tile,
of particular concrete tiles in the dungeon,
corresponding to TileKind (the type of kinds of terrain tiles).
This is because the tiles are too numerous and there's not enough
storage space for a well-rounded Tile type, on one hand,
and on the other hand, tiles are accessed
too often in performance critical code
to try to compress their representation and/or recompute them.
Instead, of defining a Tile type, we express various properties
of concrete tiles by arrays or sparse EnumMaps, as appropriate.
Actors at normal speed (2 m/s) take one turn to move one tile (1 m by 1 m).
- type SmellTime = Time
- kindHasFeature :: Feature -> TileKind -> Bool
- kindHas :: [Feature] -> [Feature] -> TileKind -> Bool
- hasFeature :: Ops TileKind -> Feature -> Id TileKind -> Bool
- isClear :: Ops TileKind -> Id TileKind -> Bool
- isLit :: Ops TileKind -> Id TileKind -> Bool
- isExplorable :: Ops TileKind -> Id TileKind -> Bool
- similar :: TileKind -> TileKind -> Bool
- speedup :: Bool -> Ops TileKind -> Speedup TileKind
- openTo :: Ops TileKind -> Id TileKind -> Rnd (Id TileKind)
- closeTo :: Ops TileKind -> Id TileKind -> Rnd (Id TileKind)
- revealAs :: Ops TileKind -> Id TileKind -> Rnd (Id TileKind)
- hideAs :: Ops TileKind -> Id TileKind -> Id TileKind
- openable :: Ops TileKind -> Id TileKind -> Bool
- closable :: Ops TileKind -> Id TileKind -> Bool
- changeable :: Ops TileKind -> Id TileKind -> Bool
Documentation
The last time a hero left a smell in a given tile. To be used by monsters that hunt by smell.
kindHasFeature :: Feature -> TileKind -> Bool
Whether a tile kind has the given feature.
kindHas :: [Feature] -> [Feature] -> TileKind -> Bool
Whether a tile kind has all features of the first set and no features of the second.
hasFeature :: Ops TileKind -> Feature -> Id TileKind -> Bool
Whether a tile kind (specified by its id) has the given feature.
isClear :: Ops TileKind -> Id TileKind -> Bool
Whether a tile does not block vision. Essential for efficiency of FOV, hence tabulated.
isLit :: Ops TileKind -> Id TileKind -> Bool
Whether a tile is lit on its own. Essential for efficiency of Perception, hence tabulated.
isExplorable :: Ops TileKind -> Id TileKind -> Bool
Whether a tile can be explored, possibly yielding a treasure or a hidden message.
openable :: Ops TileKind -> Id TileKind -> Bool
Whether a tile kind (specified by its id) has a OpenTo feature.