Package com.barrybecker4.game.twoplayer.gomoku.analysis

Class PatternExtractor

java.lang.Object

com.barrybecker4.game.twoplayer.gomoku.analysis.PatternExtractor

public class PatternExtractor
extends java.lang.Object

Extract a pattern from a line of symbols. A pattern consists of a sequence of friendly and unoccupied positions.

Constructor Summary

Constructors

Constructor	Description
PatternExtractor(java.lang.CharSequence line)	Constructor

Method Summary

Modifier and Type	Method	Description
protected int	getEndPosition(java.lang.CharSequence line, char opponentSymb, int pos, int extremePos, int direction)	March in the direction specified until we hit 2 blanks, an opponent piece, or the end of the line.
protected java.lang.CharSequence	getPattern(char opponentSymb, int pos, int minpos, int maxpos)	Given the opponent symbol, find the pattern in the specified potion of the line.

Methods inherited from class java.lang.Object

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

Constructor Detail

PatternExtractor

public PatternExtractor(java.lang.CharSequence line)

Constructor

Parameters:

line - the line to extract patterns from.

Method Detail

getPattern

protected java.lang.CharSequence getPattern(char opponentSymb,
                                            int pos,
                                            int minpos,
                                            int maxpos)

Given the opponent symbol, find the pattern in the specified potion of the line.

getEndPosition

protected int getEndPosition(java.lang.CharSequence line,
                             char opponentSymb,
                             int pos,
                             int extremePos,
                             int direction)

March in the direction specified until we hit 2 blanks, an opponent piece, or the end of the line.

Returns:

end position