import java.util.Random;

/* An instance of this class represents a six-sided die, such as is used in
** board games (e.g., Monopoly, Clue) and other games of chance (e.g., craps).
**
** Author: R. McCloskey
** Date: Sept. 2022
*/
public class SixSidedDie {

   // instance variables
   // ------------------

   private int pips;    // # of pips on upward-facing side of the die
   private Random rand; // generates the pseudo-random results of die rolls


   // constructor
   // -----------

   /* Initializes this die so that the pseudo-random number generator
   ** used in producing the results of die rolls is "seeded by" the 
   ** given number.
   */
   public SixSidedDie(int seed) {
      rand = new Random(seed);
   }

   /* Initializes this die so that the pseudo-random number generator
   ** used in producing the results of die rolls is "seeded by" an
   ** unspecified number.
   */
   public SixSidedDie() {
      rand = new Random();
   }


   // observers
   // ---------

   /* Returns the number of pips currently "showing" on the die.
   */
   public int pips() { return pips; }


   /* Returns a string indicating the # of pips showing on this die.
   */
   @Override
   public String toString() {
      return "pips showing: " + pips();
   }
   

   // mutator
   // -------

   /* Rolls the die.
   */
   public void roll() { pips = 1 + rand.nextInt(6); }

}