if (BallY == y && BallX == x) // check for collision
  {
    x = 80; // reset x to initial
    y = 240; // reset y to initial
    z = 100; //reset z to initial
  }

if (BallY == y && BallX == x) // check for collision
  {
    x = 80; // reset x to initial
    y = 240; // reset y to initial
    z = 100; //reset z to initial
    for (int i=50; i<width; i+=80)
    {
      fill(250,0,0);
      ellipse(i, 50, 70, 70);
    }
  }