/** A TrickDice has one weightedSide such that the
 *  weightedSide appears weight times as often as other sides
 */
class TrickDice extends Dice {
  
  private int weightedSide;  //weighted side appears more often
  private int weight;        //weighted side appears weigth
                             //times as often as other sides

  /** TrickDice has side s appearing with weight w */
  public TrickDice(int numFaces, int s, int w) {
    super(numFaces);
    weightedSide= s;
    weight= w;
    roll();
  }
  
  /** Bogus method to test access to some components */
  public void foo() {
    System.out.println(weight);  //valid?
    //System.out.println(sides);   //invalid.
    System.out.println(getSides());   //valid?
    roll();  //which version of roll() will be executed?
  }

  /** top gets random value in 1..sides given trick property */
  public void roll() {
    //int r= (int) (Math.random()*(getSides()+weight-1))+1;
    int r= randInt(1,(getSides()+weight-1));
    if (r<=getSides())
      setTop(r);
    else
      setTop(weightedSide);
  }
  
  /** = Get weighted side */
  public int getWSide() { return weightedSide; }
  
  /** = Get weight of weighted side */
  public int getWeight() { return weight; }
}