Safe Haskell	None
Language	Haskell2010

BishBosh.Component.Piece

Contents

Types
- Type-synonyms
- Data-types
Constants
Functions

Description

AUTHOR: Dr. Alistair Ward
DESCRIPTION: Defines the data-type which represents any chess-piece.

Synopsis

type ArrayByPiece = Array Piece
type LocatedPiece = (Coordinates, Piece)
data Piece
range :: [Piece]
nPiecesPerSide :: NPieces
epdCharacterSet :: EPD
findAttackDestinations :: Piece -> Coordinates -> [Coordinates]
showPieces :: String
getAttackDirections :: Piece -> [Direction]
promote :: Rank -> Piece -> Piece
mkBishop :: LogicalColour -> Piece
mkKing :: LogicalColour -> Piece
mkKnight :: LogicalColour -> Piece
mkPawn :: LogicalColour -> Piece
mkPiece :: LogicalColour -> Rank -> Piece
mkQueen :: LogicalColour -> Piece
mkRook :: LogicalColour -> Piece
listArrayByPiece :: IArray a e => [e] -> a Piece e
canAttackAlong :: Coordinates -> Coordinates -> Piece -> Bool
canMoveBetween :: Piece -> Coordinates -> Coordinates -> Bool
isBlack :: Piece -> Bool
isFriend :: Piece -> Piece -> Bool
isPawn :: Piece -> Bool
isKnight :: Piece -> Bool
isQueen :: Piece -> Bool
isKing :: Piece -> Bool
isPawnPromotion :: Piece -> Coordinates -> Bool

Types

Type-synonyms

type ArrayByPiece = Array Piece Source #

A boxed array indexed by piece, of unspecified elements.

type LocatedPiece = (Coordinates, Piece) Source #

A piece at specific coordinates.

Data-types

data Piece Source #

A Chess-piece has a logical colour & a rank.

Instances

Instances details

Bounded Piece Source #
Instance details Defined in BishBosh.Component.Piece Methods minBound :: Piece # maxBound :: Piece #
Eq Piece Source #
Instance details Defined in BishBosh.Component.Piece Methods (==) :: Piece -> Piece -> Bool # (/=) :: Piece -> Piece -> Bool #
Ord Piece Source #
Instance details Defined in BishBosh.Component.Piece Methods compare :: Piece -> Piece -> Ordering # (<) :: Piece -> Piece -> Bool # (<=) :: Piece -> Piece -> Bool # (>) :: Piece -> Piece -> Bool # (>=) :: Piece -> Piece -> Bool # max :: Piece -> Piece -> Piece # min :: Piece -> Piece -> Piece #
Read Piece Source #
Instance details Defined in BishBosh.Component.Piece Methods readsPrec :: Int -> ReadS Piece # readList :: ReadS [Piece] # readPrec :: ReadPrec Piece # readListPrec :: ReadPrec [Piece] #
Show Piece Source #
Instance details Defined in BishBosh.Component.Piece Methods showsPrec :: Int -> Piece -> ShowS # show :: Piece -> String # showList :: [Piece] -> ShowS #
Ix Piece Source #
Instance details Defined in BishBosh.Component.Piece Methods range :: (Piece, Piece) -> [Piece] # index :: (Piece, Piece) -> Piece -> Int # unsafeIndex :: (Piece, Piece) -> Piece -> Int # inRange :: (Piece, Piece) -> Piece -> Bool # rangeSize :: (Piece, Piece) -> Int # unsafeRangeSize :: (Piece, Piece) -> Int #
NFData Piece Source #
Instance details Defined in BishBosh.Component.Piece Methods rnf :: Piece -> () #
XmlPickler Piece Source #
Instance details Defined in BishBosh.Component.Piece Methods xpickle :: PU Piece #
ShowsEPD Piece Source #
Instance details Defined in BishBosh.Component.Piece Methods showsEPD :: Piece -> ShowS Source #
ReadsEPD Piece Source #
Instance details Defined in BishBosh.Component.Piece Methods readsEPD :: ReadS Piece Source #
FixedMembership Piece Source #
Instance details Defined in BishBosh.Component.Piece Methods members :: [Piece] Source #
ShowsFEN Piece Source #
Instance details Defined in BishBosh.Component.Piece Methods showsFEN :: Piece -> ShowS Source #
ReadsFEN Piece Source #
Instance details Defined in BishBosh.Component.Piece Methods readsFEN :: ReadS Piece Source #
Opposable Piece Source #
Instance details Defined in BishBosh.Component.Piece Methods getOpposite :: Piece -> Piece Source #

Constants

range :: [Piece] Source #

The constant ascending range of pieces.

nPiecesPerSide :: NPieces Source #

The constant number of pieces per side at the conventional opening position; some of which are duplicates.

epdCharacterSet :: EPD Source #

The constant set of permissible characters in an EPD.

Functions

findAttackDestinations Source #

Arguments

:: Piece
-> Coordinates	The source from which the attack originates.
-> [Coordinates]	The destinations which can be attacked.

Find the destinations which the specified piece can attack from the specified position.

showPieces :: String Source #

Returns a constant string containing all possible pieces.

Accessors

getAttackDirections :: Piece -> [Direction] Source #

Get the constant directions of the straight lines along which the specified piece can attack.
CAVEAT: not defined for a Knight.

Mutators

promote :: Rank -> Piece -> Piece Source #

Changes the specified piece to the specified rank leaving its logical colour unchanged.

Constructors

mkBishop :: LogicalColour -> Piece Source #

Constructor.

mkKing :: LogicalColour -> Piece Source #

Constructor.

mkKnight :: LogicalColour -> Piece Source #

Constructor.

mkPawn :: LogicalColour -> Piece Source #

Constructor.

mkPiece :: LogicalColour -> Rank -> Piece Source #

Constructor.

mkQueen :: LogicalColour -> Piece Source #

Constructor.

mkRook :: LogicalColour -> Piece Source #

Constructor.

listArrayByPiece :: IArray a e => [e] -> a Piece e Source #

Array-constructor.

Predicates

canAttackAlong Source #

Arguments

:: Coordinates	Source (attacker's location).
-> Coordinates	Destination (victim's location).
-> Piece	Attacker.
-> Bool

Whether a piece at the specified coordinates could attack the target at the specified coordinates.
N.B.: doesn't require that the specified piece actually exists at the target-location, nor that the victim's logical colour is opposite from the attacker's.
N.B.: can't detect any blocking pieces which might invalidate the attack.
CAVEAT: it won't confirm the ability of a Pawn to advance, since that doesn't constitute an attack.

canMoveBetween Source #

Arguments