//*************************************
// Program Name: onedie.java          *
// Author: Pat Moss                   *
// Date: Oct 10, 2005  Rev: 01        *
//                                    *
// Demonstrate the class onedie, etc. *
//*************************************

// Represent one die with faces showing values
// between 1 and n (numberofsides)

public class onedie
{
 private final int MIN = 1;  // minimum numberofsides
 private final int MAX = 20; // maximum numberofsides
 private final int SIX = 6;  // six sides for die
 private int numberofsides;  // numberofsides face value
 private int faceValue;      // current value for die

 // Constructors: Set the initial face value for the die

 public onedie() 
 {
  numberofsides = SIX;
  faceValue = MIN;
 }

 public onedie(int numsides) 
 {
  if ((numsides < MIN) || (numsides > MAX))
  {
   // error -- so use the default values
   numberofsides = SIX;
   faceValue = MIN;
  }
  else
  {
   numberofsides = numsides;
   faceValue = MIN;
  }
 }

 // roll the die and return the result

 public int roll()
 {
  faceValue = (int) (Math.random() * numberofsides) + 1;
  return faceValue;
 }

 // face value accessor

 public int getFaceValue()
 {
  return faceValue;
 }

 // face value mutator

 public void setFaceValue(int value) 
 {
  if ((value < MIN) || (value > numberofsides))
  {
   // error -- so do nothing here
  }
  else
  {
   faceValue = value;
  }
 }

 // return a string representation of faceValue

 public String toString()
 {
  String result = Integer.toString(faceValue);
  return result;
 }
}