strategy.java

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package org.yushang.jumpchess.strategy;

import org.yushang.jumpchess.pkg.ChessBoard;
import org.yushang.jumpchess.pkg.Player;
import org.yushang.jumpchess.pkg.VirtualChessBoard;

public abstract class Strategy {	
	protected ChessBoard chessBoard = null;
	protected Player player = null;
	
	Strategy(ChessBoard chessBoard, Player player) {
		this(chessBoard, player, null);
	}
	
	Strategy(ChessBoard chessBoard, Player player, Step step) {
		ChessBoard ch = chessBoard;
		if (step != null) {
		 ch = new VirtualChessBoard(chessBoard, step);
		}
		this.chessBoard = ch;
		this.player = player;		
	}
	
	public abstract int CalculateScore();

}