// Decompiled by Jad v1.5.8e2. Copyright 2001 Pavel Kouznetsov.
// Jad home page: http://kpdus.tripod.com/jad.html
// Decompiler options: packimports(3) space 
// Source File Name:   TicTacToeBoard.java

package model.board;

import GameIO.IModel;
import model.*;

// Referenced classes of package model.board:
//      ABoardModel, NonTerminalState

public class TicTacToeBoard extends ABoardModel
{

  public TicTacToeBoard(int i, int j, IModel imodel)
  {
    super(i, j, imodel);
    IN_ROW = 3;
  }

  private synchronized int checkWin(int i, int j)
  {
    return winCheck(i, j);
  }

  public synchronized IUndoMove makeMove(final int row, final int col, int i, ICheckMoveVisitor icheckmovevisitor, IBoardStatusVisitor iboardstatusvisitor)
  {
    if (isValidMove(i, row, col))
    {
      super.cells[row][col] = i * 2 - 1;
      chgState(checkWin(row, col));
      icheckmovevisitor.validMoveCase();
      execute(iboardstatusvisitor, null);
      return new IUndoMove() {

        public void apply(IUndoVisitor iundovisitor)
        {
          undoMove(row, col, iundovisitor);
        }

      };
    } else
    {
      icheckmovevisitor.invalidMoveCase();
      return new IUndoMove() {

        public void apply(IUndoVisitor iundovisitor)
        {
        }

      };
    }
  }

  public synchronized void undoMove(int i, int j, IUndoVisitor iundovisitor)
  {
    int k = super.cells[i][j];
    if (k == 0)
    {
      iundovisitor.noTokenCase();
    } else
    {
      super.cells[i][j] = 0;
      iundovisitor.tokenCase((k + 1) / 2);
    }
    super.state = NonTerminalState.Singleton;
  }

  int winCheck(int i, int j)
  {
    int k = super.cells[i][j];
    if (k != 0)
    {
      for (int l = 0; l < super.directions.length; l++)
      {
        int i1 = super.directions[l][0];
        int j1 = super.directions[l][1];
        if (winCheckHelp1(k, IN_ROW - 2, i + i1, j + j1, i1, j1, i - i1, j - j1))
          return k;
      }

    }
    return 0;
  }

  boolean winCheckHelp1(int i, int j, int k, int l, int i1, int j1, int k1, 
      int l1)
  {
    if (k < 0 || l < 0 || k >= super.cells.length || l >= super.cells[k].length)
      return winCheckHelp2(i, j, k1, l1, -i1, -j1);
    if (super.cells[k][l] != i)
      return winCheckHelp2(i, j, k1, l1, -i1, -j1);
    if (0 == j)
      return true;
    else
      return winCheckHelp1(i, --j, k + i1, l + j1, i1, j1, k1, l1);
  }

  boolean winCheckHelp2(int i, int j, int k, int l, int i1, int j1)
  {
    if (k < 0 || l < 0 || k >= super.cells.length || l >= super.cells[k].length || super.cells[k][l] != i)
      return false;
    if (0 == j)
      return true;
    else
      return winCheckHelp2(i, --j, k + i1, l + j1, i1, j1);
  }

  public boolean isValidMove(int i, int j, int k)
  {
    return 0 == super.cells[j][k];
  }

  private int IN_ROW;
}