/*
 * Copyright (c) 1997-1998 Borland International, Inc. All Rights Reserved.
 * 
 * This SOURCE CODE FILE, which has been provided by Borland as part
 * of a Borland product for use ONLY by licensed users of the product,
 * includes CONFIDENTIAL and PROPRIETARY information of Borland.  
 *
 * USE OF THIS SOFTWARE IS GOVERNED BY THE TERMS AND CONDITIONS 
 * OF THE LICENSE STATEMENT AND LIMITED WARRANTY FURNISHED WITH
 * THE PRODUCT.
 *
 * IN PARTICULAR, YOU WILL INDEMNIFY AND HOLD BORLAND, ITS RELATED
 * COMPANIES AND ITS SUPPLIERS, HARMLESS FROM AND AGAINST ANY CLAIMS
 * OR LIABILITIES ARISING OUT OF THE USE, REPRODUCTION, OR DISTRIBUTION
 * OF YOUR PROGRAMS, INCLUDING ANY CLAIMS OR LIABILITIES ARISING OUT OF
 * OR RESULTING FROM THE USE, MODIFICATION, OR DISTRIBUTION OF PROGRAMS
 * OR FILES CREATED FROM, BASED ON, AND/OR DERIVED FROM THIS SOURCE
 * CODE FILE.
 */
/*
 * %W% %E%
 *    helper class for Chessboard
 *
 */
package borland.samples.apps.chess.client.board;

public class Boardsquares extends Object{
  int[][] board = new int[8][8];

  public synchronized void assign(int column,int row,int value){
    board[column][row] = value;
  }

  public synchronized void add(Boardsquares b)  {
    int column,row;
    for (column=0;column<8;column++){
      for (row=0;row<8;row++) {
        board[column][row] =  board  [column][row] +
        		      b.board[column][row];
      }
    }
  }

  public synchronized void subtract(Boardsquares b) {
    int column,row;
    for (column=0;column<8;column++) {
      for (row=0;row<8;row++)	{
        board[column][row] = board[column][row] -
                             b.board[column][row];
      }
    }
  }

  public int nonZeroElementCount() {
    int count = 0;
    for (int column=0;column<8;column++) {
      for (int row=0;row<8;row++) {
      	if (board[column][row] !=  0)
       	    count++;
      }
    }
    return count;
  }

  public boolean equals(Boardsquares b) {
    int column,row;
    for (column=0;column<8;column++) {
      for (row=0;row<8;row++) {
      	if (board[column][row] !=  b.board  [column][row])
       	    return false;
      }
    }
    return true;
  }

  public synchronized int value(int file,int rank) {
    if (file < 0 || rank < 0 || file > 7 || rank > 7)
     return 0  ;
   else
     return board[file][rank];
  }

  public synchronized void init(Boardsquares b) {
    for (int column=0;column<8;column++) {
      for (int row=0;row<8;row++) {
        board[column][row] = b.board[column][row];
      }
    }
  }
}