Uses Zobrist hashing to calculate a "reasonably unique" integer value for each board configuration encountered during a game. More...

#include <zobrist_calculator_for_concepts.hpp>

Collaboration diagram for boardstate::ZobristCalculatorForConcepts< K >:

Public Types
using	KeyType = K

Public Member Functions
KeyType	board_state () const

uint32_t	seed () const

void	FullBoardStateCalc (const gameboard::BoardMap_t &board_map)

void	UpdateBoardState (const gameboard::ExecutedMove &executed_move)

Static Public Member Functions
static std::shared_ptr< ZobristCalculatorForConcepts< K > >	Create (uint32_t seed=std::random_device{}())

Private Types
using	PieceZarray_t = array< array< K, gameboard::kNumFiles >, gameboard::kNumRanks >

using	TeamZarray_t = array< PieceZarray_t, gameboard::kNumPieceTypeVals >

using	GameZarray_t = array< TeamZarray_t, 2 >

Private Member Functions
	ZobristCalculatorForConcepts (uint32_t seed=std::random_device{}())
	Constructs a ZobristCalculatorForConcepts.

K	GetHashValueAt (PieceColor color, PieceType piece_type, BoardSpace space)

void	FullBoardStateCalcInternal (const gameboard::BoardMap_t &board_map)

void	UpdateBoardStateInternal (const gameboard::ExecutedMove &executed_move)

Static Private Member Functions
static const GameZarray_t	CreateGameZarray (PseudoRandomKeyGenerator< K > &key_generator)
	Static helper method for building 4-D array of Zobrist keys in constuctor.

Private Attributes
GameZarray_t	zarray_

K	turn_key_

uint32_t	seed_

K	board_state_

Detailed Description

template<typename K>
class boardstate::ZobristCalculatorForConcepts< K >

Uses Zobrist hashing to calculate a "reasonably unique" integer value for each board configuration encountered during a game.

K can be any unsigned integer type with a size = (n * 32 bits) where n is an integer >= 1.

Definition at line 13 of file zobrist_calculator_for_concepts.hpp.

Member Typedef Documentation

◆ GameZarray_t

template<typename K >

using boardstate::ZobristCalculatorForConcepts< K >::GameZarray_t = array<TeamZarray_t, 2>

private

Definition at line 19 of file zobrist_calculator_for_concepts.hpp.

◆ KeyType

template<typename K >

using boardstate::ZobristCalculatorForConcepts< K >::KeyType = K

Definition at line 27 of file zobrist_calculator_for_concepts.hpp.

◆ PieceZarray_t

template<typename K >

using boardstate::ZobristCalculatorForConcepts< K >::PieceZarray_t = array<array<K, gameboard::kNumFiles>, gameboard::kNumRanks>

private

Definition at line 17 of file zobrist_calculator_for_concepts.hpp.

◆ TeamZarray_t

template<typename K >

using boardstate::ZobristCalculatorForConcepts< K >::TeamZarray_t = array<PieceZarray_t, gameboard::kNumPieceTypeVals>

private

Definition at line 18 of file zobrist_calculator_for_concepts.hpp.

Constructor & Destructor Documentation

◆ ZobristCalculatorForConcepts()

template<typename K >

boardstate::ZobristCalculatorForConcepts< K >::ZobristCalculatorForConcepts ( uint32_t seed = std::random_device{}() )

inlineprivate

Constructs a ZobristCalculatorForConcepts.

Parameters

seed	Integer used as a seed for a PRNG that generates Zobrist key values.

Definition at line 52 of file zobrist_calculator_for_concepts.hpp.

Member Function Documentation

◆ board_state()

template<typename K >

KeyType boardstate::ZobristCalculatorForConcepts< K >::board_state ( ) const

inline

Definition at line 37 of file zobrist_calculator_for_concepts.hpp.

◆ Create()

template<typename K >

static std::shared_ptr< ZobristCalculatorForConcepts< K > > boardstate::ZobristCalculatorForConcepts< K >::Create ( uint32_t seed = std::random_device{}() )