/**
 * Creates a random answer, returns the answer, and allows
 * access to all positions of the answer arry
 * 
 * @author John Paxton augmented by Andrew Szatkowski
 * @version 1.0
 */

public class Answer
{
    /**
     * Constructs an instance of Answer class initializing
     * the instance fields
     * 
     * @param   number of pegs being used
     *          number of colors being used
     */
    Answer (int howManyPegs, int howManyColors)
    {
        colors = howManyColors;
        answer = new int [ howManyPegs ];
        flags = new boolean [ howManyPegs ];
    }
    
    /**
     * Creates random values between 1 and the number of colors
     * and places them in all positions of the answer array
     * 
     * pre: the answer array has been initialized
     */
    public void createAnswer ()
    {
        for (int i = 0; i < answer.length; i++)
        {
            answer[i] = (int) (colors * Math.random()) + 1;
        }   
    }
    
    /**
     * Returns the answer array
     * 
     * @ return     the answer array
     */
    public int [] getAnswer()
    {
        return answer;
    }
    
    /**
     * Resets the flag array to false for
     * all array indexes
     */
    public void reset ()
    {
        for (int i = 0; i < flags.length; i++)
        {
            flags[i] = false;
        }
    }
    
    /**
     * Returns the value of a peg at the passed
     * in position
     * 
     * @param       the desired position of the array
     * @return      the peg's value
     */
    public int getPeg (int position)
    {
        return answer[position];
    }
    
    /**
     * Returns the boolean of a peg at the passed
     * in position
     * 
     * @param       the desired position of the array
     * @return      the boolean of the peg
     */
    public boolean getPegUsed (int position)
    {
        return flags[position];
    }
    
    /**
     * Sets the boolean value of a peg at the desired
     * position to reflect that it has been used
     * 
     * @param       the desired position of the array
     */
    public void setPegUsed (int position)
    {
        flags[position] = true;
    }
    
    /**
     * Prints out the answer and flag arrays
     */
    public void print ()
    {
        for (int i = 0; i < answer.length; i++)
        {
            System.out.print ( answer[i] + "(" + flags[i] + ")" + " ");
        }
        System.out.println();
    }
    
    // instance fields
    private int colors;
    private int [] answer;
    private boolean [] flags;
}