/* terrain.h 
 * Copyright (C) 2003 Marcus Bäckman, pingvin@varberg.se
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifndef TERRAIN_H
#define TERRAIN_H

#include <windows.h>
#include <GL/gl.h>	
#include "3DMath.h"


class terrain 
{
private:
	float   **heightData;
	Vector3 **normalData;
	GLuint  callListID;
	bool    useCallList;
	int     width,height,zScale;
	float   texStep;

	void readHeightmap(char *heightMap);
	void calcNormals();
public:
	terrain(char *heightMap, bool useCallList);
	void initSurface(void);
	void drawSurface(void);	
	float getHeight(float x, float y);
};


#endif