GoSearch Class Reference

#include <GoSearch.h>

Inheritance diagram for GoSearch:

[legend]List of all members.

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Detailed Description

Go search.

Defines EndOfGame to return true after two passes.

Definition at line 19 of file GoSearch.h.

Public Member Functions
	GoSearch (GoBoard &board, SgSearchHashTable *hash)
GoBoard &	Board ()
const GoBoard &	Board () const
bool	CheckDepthLimitReached () const
	Return false, because some Go searches require it.
bool	EndOfGame () const
bool	Execute (SgMove move, int *delta, int depth)
	Default implementation of SgSearch::Execute() for Go searches.
SgHashCode	GetHashCode () const
	Default implementation of SgSearch::GetHashCode() for Go searches.
SgBlackWhite	GetToPlay () const
	Default implementation of SgSearch::ToPlay() for Go searches.
void	SetToPlay (SgBlackWhite toPlay)
std::string	MoveString (SgMove move) const
void	TakeBack ()
	Default implementation of SgSearch::TakeBack() for Go searches.
const SgSearchHashTable *	HashTable () const
void	SetHashTable (SgSearchHashTable *hashtable)
const SgSearchControl *	SearchControl () const
void	SetSearchControl (SgSearchControl *control)
void	SetProbCut (SgProbCut *probcut)
virtual void	OnStartSearch ()
int	DepthFirstSearch (int depthLimit, int boundLo, int boundHi, SgVector< SgMove > *sequence, bool clearHash=true, SgNode *traceNode=0)
int	DepthFirstSearch (int depthLimit, SgVector< SgMove > *sequence, bool clearHash=true, SgNode *traceNode=0)
int	IteratedSearch (int depthMin, int depthMax, int boundLo, int boundHi, SgVector< SgMove > *sequence, bool clearHash=true, SgNode *traceNode=0)
int	IteratedSearch (int depthMin, int depthMax, SgVector< SgMove > *sequence, bool clearHash=true, SgNode *traceNode=0)
int	IteratedSearchDepthLimit () const
virtual void	StartOfDepth (int depthLimit)
bool	Aborted () const
void	SetAbortSearch (bool fAborted=true)
void	SetScout (bool flag=true)
void	SetKillers (bool flag=true)
void	SetOpponentBest (bool flag=true)
void	SetNullMove (bool flag=true)
void	SetNullMoveDepth (int depth)
void	GetStatistics (SgSearchStatistics *stat)
const SgSearchStatistics &	Statistics () const
void	StartTime ()
void	StopTime ()
virtual void	Generate (SgVector< SgMove > *moves, int depth)=0
virtual int	Evaluate (bool *isExact, int depth)=0
virtual bool	AbortSearch ()
int	CurrentDepth () const
SgMove	PrevMove () const
SgMove	PrevMove2 () const
void	InitSearch (int startDepth=0)
bool	TraceIsOn () const
virtual void	CreateTracer ()
void	SetTracer (SgSearchTracer *tracer)
SgSearchTracer *	Tracer () const
void	SetAbortFrequency (int value)
int	SearchEngine (int depth, int alpha, int beta, SgStack< SgMove, SgSearch::MAX_DEPTH > &stack, bool *isExactValue, bool lastNullMove=false)
Static Public Attributes
static const int	DEPTH_UNIT
static const int	MAX_DEPTH
static const int	SG_INFINITY
Private Attributes
GoBoard &	m_board

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Constructor & Destructor Documentation

GoSearch::GoSearch	(	GoBoard &	board,
		SgSearchHashTable *	hash
	)

Definition at line 20 of file GoSearch.cpp.

References SgSearch::SetOpponentBest().

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Member Function Documentation

const GoBoard & GoSearch::Board

(

)

const

Definition at line 70 of file GoSearch.h.

References m_board.

GoBoard & GoSearch::Board

(

)

Definition at line 65 of file GoSearch.h.

References m_board.

Referenced by Execute(), GetHashCode(), GetToPlay(), SetToPlay(), and TakeBack().

bool GoSearch::CheckDepthLimitReached

(

)

const [virtual]

Return false, because some Go searches require it.

Todo:

Remove. Implement it in the subclasses, because it depends on the move generation there.

Implements SgSearch.

Definition at line 27 of file GoSearch.cpp.

bool GoSearch::EndOfGame

(

)

const [virtual]

Implements SgSearch.

Definition at line 32 of file GoSearch.cpp.

References SgSearch::PrevMove(), SgSearch::PrevMove2(), and SG_PASS.

bool GoSearch::Execute	(	SgMove	move,
		int *	delta,
		int	depth
	)			[virtual]

Default implementation of SgSearch::Execute() for Go searches.

Executes the move is legal.

Implements SgSearch.

Definition at line 37 of file GoSearch.cpp.

References Board(), GoBoardUtil::PlayIfLegal(), SG_UNUSED(), and GoBoard::ToPlay().

SgHashCode GoSearch::GetHashCode

(

)

const [virtual]

Default implementation of SgSearch::GetHashCode() for Go searches.

Returns:

Board().GetHashCodeInclToPlay().

Implements SgSearch.

Definition at line 48 of file GoSearch.cpp.

References Board(), and GoBoard::GetHashCodeInclToPlay().

SgBlackWhite GoSearch::GetToPlay

(

)

const [virtual]

Default implementation of SgSearch::ToPlay() for Go searches.

Returns:

Board().ToPlay().

Implements SgSearch.

Definition at line 53 of file GoSearch.cpp.

References Board(), and GoBoard::ToPlay().

std::string GoSearch::MoveString

(

SgMove

move

)

const [virtual]

Implements SgSearch.

Definition at line 58 of file GoSearch.cpp.

void GoSearch::SetToPlay

(

SgBlackWhite

toPlay

)

[virtual]

Implements SgSearch.

Definition at line 65 of file GoSearch.cpp.

References Board(), and GoBoard::SetToPlay().

void GoSearch::TakeBack

(

)

[virtual]

Default implementation of SgSearch::TakeBack() for Go searches.

Takes back the move on the board.

Implements SgSearch.

Definition at line 70 of file GoSearch.cpp.

References Board(), and GoBoard::Undo().

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Member Data Documentation

GoBoard& GoSearch::m_board [private]

Definition at line 62 of file GoSearch.h.

Referenced by Board().

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The documentation for this class was generated from the following files:

• GoSearch.h
• GoSearch.cpp

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17 Jun 2010 Doxygen 1.4.7