WolvePlayer Class Reference

Player using HexAbSearch to generate moves. More...

#include <WolvePlayer.hpp>

Inheritance diagram for WolvePlayer:

Public Member Functions
	WolvePlayer ()
virtual	~WolvePlayer ()
std::string	Name () const
	Returns "wolve".
WolveSearch &	Search ()
	Returns the search.
HexPoint	GenMove (const HexState &state, const Game &game, HexBoard &brd, double maxTime, double &score)
	Generates a move from this board position.
bool	SearchSingleton () const
	Search states with only a single move?
void	SetSearchSingleton (bool flag)
	See SetSearchSingleton().
Parameters

const std::vector< int > &	PlyWidth () const
	Number of moves to consider at each depth after move ordering.
void	SetPlyWidth (const std::vector< int > &width)
	See PlyWidth().
const std::vector< int > &	SearchDepths () const
	Depths to search if using iterative deepening.
void	SetSearchDepths (const std::vector< int > &depths)
	See UseIterativeDeepening().
double	PanicTime () const
	When time remaining is less than this, max search depth is set to 4.
void	SetPanicTime (double time)
	See PanicTime().
Protected Member Functions
bool	FillinCausedWin () const
Protected Attributes
bool	m_fillinCausedWin
HexColor	m_fillinWinner
Private Member Functions
void	CheckPanicMode (double timeRemaining, std::vector< int > &search_depths, std::vector< int > &plywidth)
	Reduce search strength if running out of time.
virtual HexPoint	Search (const HexState &state, const Game &game, HexBoard &brd, const bitset_t &consider, double maxTime, double &score)
	Generates a move in the given gamestate using alphabeta.
Private Attributes
WolveSearch	m_search
SearchTT	m_tt
	TT for search.
std::vector< int >	m_plywidth
	See PlyWidths().
std::vector< int >	m_search_depths
	See SearchDepths().
double	m_panic_time
	See PanicTime().

Detailed Description

Player using HexAbSearch to generate moves.

Definition at line 177 of file WolvePlayer.hpp.

Constructor & Destructor Documentation

WolvePlayer::WolvePlayer ( ) [explicit]

Definition at line 18 of file WolvePlayer.cpp.

References m_plywidth, m_search, m_search_depths, m_tt, and HexAbSearch::SetTT().

WolvePlayer::~WolvePlayer ( ) [virtual]

Definition at line 35 of file WolvePlayer.cpp.

Member Function Documentation

void WolvePlayer::CheckPanicMode	(	double	timeRemaining,
		std::vector< int > &	search_depths,
		std::vector< int > &	plywidth
	)			`[private]`

Reduce search strength if running out of time.

Definition at line 42 of file WolvePlayer.cpp.

References LogWarning(), and m_panic_time.

Referenced by Search().

bool BenzenePlayer::FillinCausedWin ( ) const [inline, protected, inherited]

Definition at line 86 of file BenzenePlayer.hpp.

References BenzenePlayer::m_fillinCausedWin.

Referenced by PerfectPlayer::Search().

HexPoint BenzenePlayer::GenMove	(	const HexState &	state,
		const Game &	game,
		HexBoard &	brd,
		double	maxTime,
		double &	score
	)			`[virtual, inherited]`

Generates a move from this board position.

If the game is already over (somebody has won), returns RESIGN.

Derived Benzene players that use different search algorithms should not extend this method, but the protected virtual method Search() below.

If state is terminal (game over, vc/fill-in win/loss), returns "appropriate" move. Otherwise, calls Search().

Bug:: Subtract time spent to here from max_time after each step.

Implements HexPlayer.

Definition at line 27 of file BenzenePlayer.cpp.

References BenzenePlayer::CheckEndgame(), BenzenePlayer::InitSearch(), INVALID_POINT, LogInfo(), BenzenePlayer::Search(), and HexState::ToPlay().

Referenced by MoHexEngine::DoSearch(), WolveEngine::GenMove(), PlayAndSolve::PlayerThread::operator()(), and BookBuilder< PLAYER >::Worker::operator()().

std::string WolvePlayer::Name ( ) const [inline, virtual]

Returns "wolve".

Implements HexPlayer.

Definition at line 241 of file WolvePlayer.hpp.

double WolvePlayer::PanicTime ( ) const [inline]

When time remaining is less than this, max search depth is set to 4.

A value of zero turns this option off.

Definition at line 271 of file WolvePlayer.hpp.

References m_panic_time.

Referenced by WolveEngine::WolveParam().

const std::vector< int > & WolvePlayer::PlyWidth ( ) const [inline]

Number of moves to consider at each depth after move ordering.

Definition at line 251 of file WolvePlayer.hpp.

References m_plywidth.

Referenced by WolveEngine::WolveParam().

HexPoint WolvePlayer::Search	(	const HexState &	state,
		const Game &	game,
		HexBoard &	brd,
		const bitset_t &	consider,
		double	maxTime,
		double &	score
	)			`[private, virtual]`