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//  Copyright (C) 2001--2002 Sam Varner

//

//  This file is part of Vamos Automotive Simulator.

//

//  Vamos 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 3 of the License, or

//  (at your option) any later version.

//  

//  Vamos 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 Vamos.  If not, see <http://www.gnu.org/licenses/>.



#ifndef _MATERIAL_H_

#define _MATERIAL_H_



#include "../geometry/Three_Vector.h"

#include "../geometry/Two_Vector.h"



#include <string>



namespace Vamos_Geometry

{

  class Material

  {

  public:

	enum Material_Type

	  {

		RUBBER,

		METAL,

		ASPHALT,

		CONCRETE,

        KERB,

		GRASS,

		GRAVEL,

		DIRT,

        AIR,

		UNKNOWN

	  };



  private:

	Material_Type m_type;



	// The frictional properties of the car are muliplied by these factors

	// for this particular surface.  They should all be 1.0 for pavement.

	double m_friction_factor;

	double m_restitution_factor;

	double m_rolling_resistance_factor;

	double m_drag_factor;



	Two_Vector m_bump_amplitude;

	double m_bump_wavelength;



    std::string m_texture_file_name;



    bool m_smooth;

    bool m_mip_map;

    double m_width;

    double m_height;



  public:

	Material (Material_Type type,

              double friction, 

              double restitution,

			  double rolling, 

              double drag, 

			  const Two_Vector& bump_amplitude,

              double bump_wavelength,

              std::string texture_file_name,

              bool smooth, 

              bool mip_map,

              double width, 

              double height);



    Material (Material_Type = UNKNOWN,

              double friction = 1.0,

              double restitution = 1.0);



    std::string texture_file_name () const { return m_texture_file_name; }

	double friction_factor () const { return m_friction_factor; }

	double rolling_resistance_factor () const 

	{ return m_rolling_resistance_factor; }

	double drag_factor () const { return m_drag_factor; }

	double restitution_factor () const { return m_restitution_factor; }

	Three_Vector bump (double x, double y) const;

	Material_Type type () const { return m_type; }

    bool smooth () const { return m_smooth; }

    bool mip_map () const { return m_mip_map; }

    double width () const { return m_width; }

    double height () const { return m_height; }

  };

}



#endif