BishBosh.StateProperty.Seeker

AUTHOR

Dr. Alistair Ward

DESCRIPTION

Permits discovery within a board.

Type-classes

class Seeker seeker x y where

An interface which may be implemented by data which can search the board.

Methods

findProximateKnights

Arguments

:: LogicalColour

The logical colour of the Knight for which to search.

-> Coordinates x y

The destination to which the Knight is required to be capable of jumping.

-> seeker x y

-> [Coordinates x y]

Locate any Knights capable of taking a piece at the specified coordinates.

findPieces

Arguments

:: (Piece -> Bool)

Predicate.

-> seeker x y

-> [LocatedPiece x y]

Locate any pieces satisfying the specified predicate.

Instances

(Enum x, Enum y, Ord x, Ord y) => Seeker MaybePieceByCoordinates x y

• Find any Knights of the specified logical colour, in attack-range around the specified coordinates.
• CAVEAT: nothing is said about whether any piece at the specified coordinates belongs to the opponent, as one might expect.
• CAVEAT: less efficient than findProximateKnights.

Defined in BishBosh.State.MaybePieceByCoordinates

Methods

findProximateKnights :: LogicalColour -> Coordinates x y -> MaybePieceByCoordinates x y -> [Coordinates x y]

findPieces :: (Piece -> Bool) -> MaybePieceByCoordinates x y -> [LocatedPiece x y]

(Enum x, Enum y, Ord x, Ord y) => Seeker CoordinatesByRankByLogicalColour x y

• Find any Knights of the specified logical colour, in attack-range around the specified coordinates.
• CAVEAT: nothing is said about whether any piece at the specified coordinates belongs to the opponent, as one might expect.

Defined in BishBosh.State.CoordinatesByRankByLogicalColour

Methods

findProximateKnights :: LogicalColour -> Coordinates x y -> CoordinatesByRankByLogicalColour x y -> [Coordinates x y]

findPieces :: (Piece -> Bool) -> CoordinatesByRankByLogicalColour x y -> [LocatedPiece x y]

(Enum x, Enum y, Ord x, Ord y) => Seeker Board x y

Defined in BishBosh.State.Board

Methods

findProximateKnights :: LogicalColour -> Coordinates x y -> Board x y -> [Coordinates x y]

findPieces :: (Piece -> Bool) -> Board x y -> [LocatedPiece x y]

Functions

findAllPieces :: Seeker seeker x y => seeker x y -> [LocatedPiece x y]

Locate all pieces on the board.