BishBosh.Input.EvaluationOptions

AUTHOR

Dr. Alistair Ward

DESCRIPTION

• Defines configurable options related to the evaluation of the game at any instance.
• N.B.: evaluation is distinct from search: evaluation => how one assesses the fitness of candidate moves; search => the order in which one evaluates candidates before selecting on the basis of their fitness.

Types

Type-synonyms

type IncrementalEvaluation = Bool

Whether to generate position-hashes incrementally from the hash of the position prior to the last move.

type Reader pieceSquareValue x y = Reader (EvaluationOptions pieceSquareValue x y)

Self-documentation.

Data-types

data EvaluationOptions pieceSquareValue x y

Defines the options related to the automatic selection of moves.

Instances

(Enum x, Enum y, Ord x, Ord y, Eq pieceSquareValue) => Eq (EvaluationOptions pieceSquareValue x y)

Defined in BishBosh.Input.EvaluationOptions

Methods

(==) :: EvaluationOptions pieceSquareValue x y -> EvaluationOptions pieceSquareValue x y -> Bool

(/=) :: EvaluationOptions pieceSquareValue x y -> EvaluationOptions pieceSquareValue x y -> Bool

(Enum x, Enum y, Ord x, Ord y, Show x, Show y, Show pieceSquareValue) => Show (EvaluationOptions pieceSquareValue x y)

Defined in BishBosh.Input.EvaluationOptions

Methods

showsPrec :: Int -> EvaluationOptions pieceSquareValue x y -> ShowS

show :: EvaluationOptions pieceSquareValue x y -> String

showList :: [EvaluationOptions pieceSquareValue x y] -> ShowS

Default (EvaluationOptions pieceSquareValue x y)

Defined in BishBosh.Input.EvaluationOptions

Methods

def :: EvaluationOptions pieceSquareValue x y

(NFData pieceSquareValue, NFData x, NFData y) => NFData (EvaluationOptions pieceSquareValue x y)

Defined in BishBosh.Input.EvaluationOptions

Methods

rnf :: EvaluationOptions pieceSquareValue x y -> ()

(Enum x, Enum y, Fractional pieceSquareValue, Ord pieceSquareValue, Ord x, Ord y, Real pieceSquareValue, Show pieceSquareValue) => XmlPickler (EvaluationOptions pieceSquareValue x y)

Defined in BishBosh.Input.EvaluationOptions

Methods

xpickle :: PU (EvaluationOptions pieceSquareValue x y)

(Enum x, Enum y, Ord x, Ord y, Real pieceSquareValue, Show pieceSquareValue) => ShowFloat (EvaluationOptions pieceSquareValue x y)

Defined in BishBosh.Input.EvaluationOptions

Methods

showsFloat :: (Double -> ShowS) -> EvaluationOptions pieceSquareValue x y -> ShowS

Constants

tag :: String

Used to qualify XML.

Functions

Constructor

mkEvaluationOptions

Arguments

:: (Enum x, Enum y, Fractional pieceSquareValue, Ord x, Ord y)

=> RankValues

The static value associated with each piece's rank.

-> CriteriaWeights

The weights applied to the values of the criteria used to select a move.

-> IncrementalEvaluation

-> Maybe (PieceSquareTablePair x y pieceSquareValue)

The value to each type of piece, of each square, during normal play & the end-game.

-> EvaluationOptions pieceSquareValue x y

Smart constructor.