Safe Haskell | None |
---|---|
Language | Haskell2010 |
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).
Synopsis
- speedupTile :: Bool -> ContentData TileKind -> TileSpeedup
- isClear :: TileSpeedup -> ContentId TileKind -> Bool
- isLit :: TileSpeedup -> ContentId TileKind -> Bool
- isWalkable :: TileSpeedup -> ContentId TileKind -> Bool
- isDoor :: TileSpeedup -> ContentId TileKind -> Bool
- isChangable :: TileSpeedup -> ContentId TileKind -> Bool
- isSuspect :: TileSpeedup -> ContentId TileKind -> Bool
- isHideAs :: TileSpeedup -> ContentId TileKind -> Bool
- consideredByAI :: TileSpeedup -> ContentId TileKind -> Bool
- isExplorable :: TileSpeedup -> ContentId TileKind -> Bool
- isOftenItem :: TileSpeedup -> ContentId TileKind -> Bool
- isOftenActor :: TileSpeedup -> ContentId TileKind -> Bool
- isNoItem :: TileSpeedup -> ContentId TileKind -> Bool
- isNoActor :: TileSpeedup -> ContentId TileKind -> Bool
- isEasyOpen :: TileSpeedup -> ContentId TileKind -> Bool
- alterMinSkill :: TileSpeedup -> ContentId TileKind -> Int
- alterMinWalk :: TileSpeedup -> ContentId TileKind -> Int
- kindHasFeature :: Feature -> TileKind -> Bool
- hasFeature :: ContentData TileKind -> Feature -> ContentId TileKind -> Bool
- openTo :: ContentData TileKind -> ContentId TileKind -> Rnd (ContentId TileKind)
- closeTo :: ContentData TileKind -> ContentId TileKind -> Rnd (ContentId TileKind)
- embeddedItems :: ContentData TileKind -> ContentId TileKind -> [GroupName ItemKind]
- revealAs :: ContentData TileKind -> ContentId TileKind -> Rnd (ContentId TileKind)
- obscureAs :: ContentData TileKind -> ContentId TileKind -> Rnd (ContentId TileKind)
- hideAs :: ContentData TileKind -> ContentId TileKind -> Maybe (ContentId TileKind)
- buildAs :: ContentData TileKind -> ContentId TileKind -> ContentId TileKind
- isEasyOpenKind :: TileKind -> Bool
- isOpenable :: ContentData TileKind -> ContentId TileKind -> Bool
- isClosable :: ContentData TileKind -> ContentId TileKind -> Bool
- createTab :: Unbox a => ContentData TileKind -> (TileKind -> a) -> Tab a
- createTabWithKey :: Unbox a => ContentData TileKind -> (ContentId TileKind -> TileKind -> a) -> Tab a
- accessTab :: Unbox a => Tab a -> ContentId TileKind -> a
- alterMinSkillKind :: ContentId TileKind -> TileKind -> Word8
- alterMinWalkKind :: ContentId TileKind -> TileKind -> Word8
Construction of tile property lookup speedup tables
speedupTile :: Bool -> ContentData TileKind -> TileSpeedup Source #
Sped up property lookups
isClear :: TileSpeedup -> ContentId TileKind -> Bool Source #
Whether a tile does not block vision. Essential for efficiency of FOV, hence tabulated.
isLit :: TileSpeedup -> ContentId TileKind -> Bool Source #
Whether a tile has ambient light --- is lit on its own. Essential for efficiency of Perception, hence tabulated.
isWalkable :: TileSpeedup -> ContentId TileKind -> Bool Source #
Whether actors can walk into a tile. Essential for efficiency of pathfinding, hence tabulated.
isDoor :: TileSpeedup -> ContentId TileKind -> Bool Source #
Whether a tile is a door, open or closed. Essential for efficiency of pathfinding, hence tabulated.
isChangable :: TileSpeedup -> ContentId TileKind -> Bool Source #
Whether a tile is changable.
isSuspect :: TileSpeedup -> ContentId TileKind -> Bool Source #
Whether a tile is suspect. Essential for efficiency of pathfinding, hence tabulated.
consideredByAI :: TileSpeedup -> ContentId TileKind -> Bool Source #
isExplorable :: TileSpeedup -> ContentId TileKind -> Bool Source #
Whether one can easily explore a tile, possibly finding a treasure, either spawned there or dropped there by a (dying from poison) foe. Doors can't be explorable since revealing a secret tile should not change it's (walkable and) explorable status. Door status should not depend on whether they are open or not so that a foe opening a door doesn't force us to backtrack to explore it. Still, a foe that digs through a wall will affect our exploration counter and if content lets walls contain threasure, such backtraking makes sense.
isOftenItem :: TileSpeedup -> ContentId TileKind -> Bool Source #
isOftenActor :: TileSpeedup -> ContentId TileKind -> Bool Source #
isEasyOpen :: TileSpeedup -> ContentId TileKind -> Bool Source #
Whether a tile kind (specified by its id) has an OpenTo feature and reasonable alter min skill.
alterMinSkill :: TileSpeedup -> ContentId TileKind -> Int Source #
alterMinWalk :: TileSpeedup -> ContentId TileKind -> Int Source #
Slow property lookups
hasFeature :: ContentData TileKind -> Feature -> ContentId TileKind -> Bool Source #
Whether a tile kind (specified by its id) has the given feature.
embeddedItems :: ContentData TileKind -> ContentId TileKind -> [GroupName ItemKind] Source #
isEasyOpenKind :: TileKind -> Bool Source #
isOpenable :: ContentData TileKind -> ContentId TileKind -> Bool Source #
Whether a tile kind (specified by its id) has an OpenTo feature.
isClosable :: ContentData TileKind -> ContentId TileKind -> Bool Source #
Whether a tile kind (specified by its id) has a CloseTo feature.
Internal operations
createTabWithKey :: Unbox a => ContentData TileKind -> (ContentId TileKind -> TileKind -> a) -> Tab a Source #