#ifndef _OVERLAY_H_

#ifndef _OVERLAY_H_

#define _OVERLAY_H_

#define _OVERLAY_H_

#include <string>

#include <string>

#include <iostream>

#include <iostream>

#include <celtxf/texturefont.h>

#include <celtxf/texturefont.h>

class Overlay;

class Overlay;

// as published by the Free Software Foundation; either version 2

// as published by the Free Software Foundation; either version 2

// of the License, or (at your option) any later version.

// of the License, or (at your option) any later version.

#include <celmath/mathlib.h>

#include <celmath/mathlib.h>

#include <cstring>

#include <cstring>

#include <cassert>

#include <cassert>

#include "celestia.h"

#include "celestia.h"

#include "astro.h"

#include "astro.h"

#include "orbit.h"

#include "orbit.h"

#include "star.h"

#include "star.h"