code: public float distanceSquared(Vector2f other) {
  		float dx = other.getX() - getX();
  		float dy = other.getY() - getY();
  		
  		return (float) (dx*dx)+(dy*dy);
  	}
docs: Get the distance from this point to another, squared. This
  can sometimes be used in place of distance and avoids the
  additional sqrt.
  
  @param other The other point we're measuring to
  @return The distance to the other point squared