import java.awt.*;
import Ball;

public class MovableBall extends Ball
{
   private double dx;
   private double dy;

   public MovableBall( int x, int y, int r, double dx, double dy )
   {
      super(x, y, r);
      this.dx = dx;
      this.dy = dy;
   }

   public void move ()
   {
      region().translate ( (int) dx, (int) dy );
   }

   protected void setMotion (double ndx, double ndy)
   {
      dx = ndx;
      dy = ndy;
   }

   protected double xMotion ()
   {
      return dx;
   }

   protected double yMotion ()
   {
      return dy;
   }
}