class KBoid extends Boid{
  KBoid(){//Vector3D v, float ms, float mf) {
     //super(4.0);//v, ms, mf);
     r = 4.0;
   }

   KBoid(Vector3D v, float ms, float mf) {
     super(v, ms, mf);
     r = 20.0;
   }

   void render() {

     float theta = vel.heading2D() - radians(90);
     push();
     translate(loc.x(),loc.y(),loc.z());
     rotateZ(theta);
     rotateX(theta);
     rotateY(theta);
     noFill();
     stroke(255);
     box(r,r,r);
     stroke(255,0,0);
     line(loc.x()-10, loc.y(),loc.x()+10, loc.y());
     stroke(0,255,0);
     line(loc.x(), loc.y()-10,loc.x(), loc.y()+10);
     stroke(255);
     line(loc.x(), loc.y(), loc.z()-10,loc.x(), loc.y(), loc.z()+10);
     pop();

   }
 }