package edu.calstatela.cs.csun;

public class TTTBean {

	boolean		turn;	// player one's move
	int[]		board;

  public TTTBean()
  {
    turn = true;	// player one's move
    board = new int[9];
    for( int i=0 ; i < board.length ; ++i ) board[i] = 0;
  }

  public void setMove( int move )
  {
    if( move < 9 && move >= 0 && board[move] == 0 )
    {
      board[move] = turn ? 1 : 2;
      turn = !turn;
    }
  }

  public void setNew( String n )
  {
    if( n != null )
    {
      turn = true;
      for( int i=0 ; i < board.length ; ++i ) board[i] = 0;
    }
  }


  public int getStatus()
  {
    // check all rows
    for( int i=0 ; i < 8 ; i += 3 )
      if( board[i] != 0 && board[i] == board[i+1] && board[i+1] == board[i+2] )
        return board[i];

    // check all columns
    for( int i=0 ; i < 3 ; ++i )
      if( board[i] != 0 && board[i] == board[i+3] && board[i+3] == board[i+6] )
        return board[i];

    // check diagonals
    if( board[0] != 0 && board[0] == board[4] && board[4] == board[8] )
        return board[0];
    if( board[2] != 0 && board[2] == board[4] && board[4] == board[6] )
        return board[2];

    // at this point nobody is winning so we check for a tie
    for( int i=0 ; i < 9 ; ++i ) if( board[i] == 0 ) return 0;

    // tied
    return 3;
  }

  public String[] getBoard()
  {
    String b[] = new String[9];

    for( int i=0 ; i < board.length ; ++i )
    {
      switch( board[i] )
      {
        case 0:
          b[i] = "<a href='TicTacToe.jsp?move="+i+"'>_</a>";
          break;

        case 1:
          b[i] = "<span style='color:red'>O</span>";
          break;

        case 2:
          b[i] = "<span style='color:blue'>X</span>";
          break;

        default:
      }
    }

    return b;
  }

} // end of TTTBean