class Tornado{
 
  Vector3D loc;
  Vector3D vel;
  Vector3D acc;
 
  //another constructor just in case i need
  Tornado(Vector3D a, Vector3D v, Vector3D l) {
    acc = a.copy();
    vel = v.copy();
    loc = l.copy();
  }
 
  //but mostly i'd use this constructor  
  //get location from the sine wave
  Tornado(Vector3D l) {
    loc = l.copy();    
  }
 
  void calcTornado() {
    float theta2 = loc.y;
   // println("calculating Tornado rendering location");
    loc.x = loc.x + sin(theta2+frameCount)*((height -loc.y)/5);
 
    renderTornado();
    theta2 += 0.01;
  }
 
 
  void renderTornado () {
   fill(255, 50); 
   if ((loc.y + 1)%13 ==1 || (loc.y + 1)%9 ==3  || (loc.y + 1)%11 ==1) {
   ellipse(loc.x, loc.y, 3, 2);
   }
   fill(255, 30); 
   if ( (loc.y + 1)%11 ==2 ||  (loc.y + 1)%5 ==3 ||  (loc.y + 1)%19 ==3) {
   ellipse(loc.x, loc.y, 3, 4);
 
   } 
   fill(255, 20); 
   if ( (loc.y + 1)%19 ==4 ||  (loc.y + 1)%6 ==3 ||  (loc.y + 1)%13 ==3) {
   ellipse(loc.x, loc.y, 5, 4);
 
   } 
//    println("tornado rendering");
 
  }
 
}