Package org.swtpra1.alphabetaplayer

Class AlphaBetaWithTranspositionTablesPlayer

java.lang.Object

org.swtpra1.AIPlayer

org.swtpra1.alphabetaplayer.AlphaBetaPlayer

org.swtpra1.alphabetaplayer.AlphaBetaWithTranspositionTablesPlayer

public class AlphaBetaWithTranspositionTablesPlayer
extends AlphaBetaPlayer

Player implementation that uses the AlphaBetaSearchTreeWithTranspositionTables

Field Summary

Fields inherited from class org.swtpra1.alphabetaplayer.AlphaBetaPlayer

alphaBeta, bufferTime, depth, evaluator, executor, iterativeDeepening, openingBook, openingBookFile, parallelism, presort

Fields inherited from class org.swtpra1.AIPlayer

BUFFER_TIME, DEFAULT_MAX_TURN_TIME

Constructor Summary

Constructors

Constructor	Description
AlphaBetaWithTranspositionTablesPlayer()	create an Alpha beta search with transposition tables instace with sane defaults.
AlphaBetaWithTranspositionTablesPlayer(Evaluator evaluator, int depth, boolean iterativeDeepening, long bufferTime, int parallelism, java.io.File openingBookFile, boolean presort)	Creates an alpha beta search instance with transposition tables that has fully customized values.

Method Summary

Modifier and Type	Method	Description
Turn	calculateTurn(int gameId, Board board, int playerId, Turn enemyTurn, long maxTurnTime)	Calculates the best possible turn in given time.
void	newGame()

Methods inherited from class org.swtpra1.alphabetaplayer.AlphaBetaPlayer

calculateTurn

Methods inherited from class org.swtpra1.AIPlayer

generateQueensMoves, getAllPossibleTurns

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AlphaBetaWithTranspositionTablesPlayer

public AlphaBetaWithTranspositionTablesPlayer()

create an Alpha beta search with transposition tables instace with sane defaults.

AlphaBetaWithTranspositionTablesPlayer

public AlphaBetaWithTranspositionTablesPlayer(Evaluator evaluator,
                                              int depth,
                                              boolean iterativeDeepening,
                                              long bufferTime,
                                              int parallelism,
                                              java.io.File openingBookFile,
                                              boolean presort)

Creates an alpha beta search instance with transposition tables that has fully customized values.

Parameters:

evaluator - see AlphaBetaPlayer.evaluator

depth - see AlphaBetaPlayer.depth

iterativeDeepening - see AlphaBetaPlayer.iterativeDeepening

bufferTime - see AlphaBetaPlayer.bufferTime

parallelism - see AlphaBetaPlayer.parallelism

openingBookFile - see AlphaBetaPlayer.openingBookFile

presort - see AlphaBetaPlayer.presort

Method Detail

calculateTurn

public Turn calculateTurn(int gameId,
                          Board board,
                          int playerId,
                          Turn enemyTurn,
                          long maxTurnTime)

Calculates the best possible turn in given time.

Overrides:

calculateTurn in class AlphaBetaPlayer

Parameters:

gameId - the running game

board - the current board state

playerId - the id (0 or 1) of the player who we play

enemyTurn - what the enemy did in his last turn

maxTurnTime - the time we have to find our turn

Returns:

turn to play

newGame

public void newGame()

Overrides:

newGame in class AIPlayer