/**
 * Handles the scoring of the guess
 * 
 * @author Tyson Joehler and Aric Walker
 * @version 2/2/2005
 */

public class Row
{
    /**
     * Construstor for class row
     * 
     * @param numberPegs The number of pegs in the row
     */
    Row (int numberPegs)
    {
        guess = null;
        answer = null;
        black = 0;
        white = 0;
    }
    
    
    /**
     * Sets the guess array
     * 
     * @param guess The input Guess object
     */
    public void setGuess ( Guess guess )
    {
        this.guess = guess;
    }
    
    
     /**
     * Sets the answer array
     * 
     * @param answer The input Answer object
     */
    public void setAnswer ( Answer answer )
    {
        this.answer = answer;
    }
    
    /**
     * Scores the guess- black peg for right color right position, white for 
     * right color, wrong position
     */
    public void scoreGuess()
    {
        black = 0;
        white = 0;
        
        answer.reset();

        for (int i = 0; i < guess.getLength(); i++)
        {
            if (guess.getGuess(i) == answer.getPeg(i))
            {
                black++;
                answer.setPegUsed(i); 
            }
        }
        
        for (int i = 0; i < guess.getLength(); i++)
        {
            if (guess.getGuess(i) != answer.getPeg(i))   // logic error was here
            {
                for (int j = 0; j < guess.getLength(); j++)
                {
                    if ((guess.getGuess(i) == answer.getPeg(j))
                        && (!answer.getPegUsed(j)))
                    {
                        white++;
                        answer.setPegUsed(j);
                        break;
                    }
                }
            }
        }
    }
    
    
    /**
     * prints out the guess and answer, only used for testing
     */
    public void print ()
    {
        for (int i = 0; i < guess.getLength(); i++)
        {
            System.out.print (guess.getGuess(i) + " ");            
        }
        System.out.println("Black: " + black + " White: " + white);
    }
    
    
    /**
     * returs the number of black pegs
     * @return the number of black pegs
     */
    public int getNumBlack()
    {
        return black;
    }
    
    
    /**
     * returs the number of white pegs
     * @return the number of white pegs
     */
    public int getNumWhite()
    {
        return white;
    }
    
    private int black;
    private int white;
    Answer answer;
    Guess guess;
    
}