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 = Reader (EvaluationOptions pieceSquareValue)

Self-documentation.

Data-types

data EvaluationOptions pieceSquareValue

Defines the options related to the automatic selection of moves.

Instances

Eq pieceSquareValue => Eq (EvaluationOptions pieceSquareValue)

Defined in BishBosh.Input.EvaluationOptions

Methods

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

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

Show pieceSquareValue => Show (EvaluationOptions pieceSquareValue)

Defined in BishBosh.Input.EvaluationOptions

Methods

showsPrec :: Int -> EvaluationOptions pieceSquareValue -> ShowS

show :: EvaluationOptions pieceSquareValue -> String

showList :: [EvaluationOptions pieceSquareValue] -> ShowS

Default (EvaluationOptions pieceSquareValue)

Defined in BishBosh.Input.EvaluationOptions

Methods

def :: EvaluationOptions pieceSquareValue

NFData pieceSquareValue => NFData (EvaluationOptions pieceSquareValue)

Defined in BishBosh.Input.EvaluationOptions

Methods

rnf :: EvaluationOptions pieceSquareValue -> ()

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

Defined in BishBosh.Input.EvaluationOptions

Methods

xpickle :: PU (EvaluationOptions pieceSquareValue)

(Real pieceSquareValue, Show pieceSquareValue) => ShowFloat (EvaluationOptions pieceSquareValue)

Defined in BishBosh.Input.EvaluationOptions

Methods

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

Constants

tag :: String

Used to qualify XML.

Functions

Constructor

mkEvaluationOptions

Arguments

:: Fractional pieceSquareValue

=> 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 pieceSquareValue)

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

-> EvaluationOptions pieceSquareValue

Smart constructor.