//*************************************************************************************
//*************************************************************************************
//***************************  Ball Class *********************************************
//*************************************************************************************
//*************************************************************************************
class Ball
{

  private int width;
  private int height;
  private int delta_x = 1;     //The delta value of the ball(speed and direction)
  private int delta_y = 1;
  public  int pos_x;       //The current position of the upper left corner of the ball
  public  int pos_y;
  public  int last_pos_x;       //The current position of the upper left corner of the ball
  public  int last_pos_y;
  public  int top_edge;      //The y value of the top edge of this ball
  public  int bottom_edge;   //The y value of the bottom edge of this balll
  public  int left_edge;     //The x value of the left edge of this ball
  public  int right_edge;    //The x value of the right edge of this ball


  //*********************  Constructor   ************************************
  Ball(int width, int height)
   {
     this.width    = width;
     this.height   = height;
   }


  //*************************** move_ball ************************************
  public void move()
   {
     last_pos_x = pos_x;
     last_pos_y = pos_y;
     pos_x += delta_x;
     pos_y += delta_y;
     calc_edges();
   }


  //*********************  flip_horz_dir  ***********************************
  public void flip_horz_direction()
    {
       delta_x *= -1;
       pos_x += delta_x;
    }


  //*********************  flip_vert_dir  ***********************************
  public void flip_vert_direction()
    {
       delta_y *= -1;
       pos_y += delta_y;
    }


  //*********************  set_speed  ***********************************
  public void set_speed(int ball_speed)
    {
      // Ball delta = sign of ball delta (-/+) * the new ball speed
      delta_x = (delta_x / Math.abs(delta_x) ) * ball_speed;
      delta_y = (delta_y / Math.abs(delta_y) ) * ball_speed;
    }


  //*********************  jump_to  ***********************************
  public void jump_to(int x, int y)
    {
       pos_x = x;
       pos_y = y;
       calc_edges();
    }



  //*********************  calc_edges  ***********************************
  public void calc_edges()
    {
      top_edge    =  pos_y;
      bottom_edge =  pos_y + height;
      left_edge   =  pos_x;
      right_edge  =  pos_x + width;
    }



} //******** End of Ball Object *****************************************************