/**
 * Handles creating a random answer and storing it for the game
 * 
 * @author Tyson Joehler and Aric Walker
 * @version 2/2/2005
 */


public class Answer
{
    /**
     * Answer constructor
     *
     * @param howManyPegs the number of pegs the user chooses to have in each row
     * @param howManyColors the number of colors the user chooses to have in each row
     */
    Answer (int howManyPegs, int howManyColors)
    {
        colors = howManyColors;
        answer = new int [ howManyPegs ];
        flags = new boolean [ howManyPegs ];
    }
    
    
    /**
     * Creates a random answer array
     * pre- no answer array
     * post- array with random numbers between the specified values (color)
     */
    public void createAnswer ()
    {
        for (int i = 0; i < answer.length; i++)
        {
            answer[i] = (int) (colors * Math.random()) + 1;
        }   
    }
    
    /**
     * Resets the flags array
     * pre- answer is tagged with values saying if it's been used or not
     * post- the flags array is set to all false again (reset)
     */
    public void reset ()
    {
        for (int i = 0; i < flags.length; i++)
        {
            flags[i] = false;
        }
    }
    
    /**
     * Returns the answer # stored in the array at the given position
     *  
     * @param position the peg at the certain position 
     * @return The number that was stored in the requested position
     */
    
    public int getPeg (int position)
    {
        return answer[position];
    }
    
    /**
     * Method used in handling if the answer has been tried already
     * 
     * @param position the peg at the certain position
     * @return Boolean- if the peg has been used or not
     */
    public boolean getPegUsed (int position)
    {
        return flags[position];
    }
    
    /**
     * Sets the peg at position to 'used'
     * 
     * @param position the specified position
     */
    public void setPegUsed (int position)
    {
        flags[position] = true;
    }
    
    /**
     * returns the length of the array
     * @return The length of the array
     */
    public int getLength()
    {
        return answer.length;
    }
    
    /**
     * Prints out the answer- called only for testing
     */
    public void print ()
    {
        for (int i = 0; i < answer.length; i++)
        {
            System.out.print ( answer[i] + "(" + flags[i] + ")" + " ");
        }
        System.out.println();
    }
    
    private int colors;
    private int [] answer;
    private boolean [] flags;
}