Vamos Automotive Simulator git

//  Copyright (C) 2001-2019 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 "Three_Vector.hpp"
#include "Two_Vector.hpp"

#include <string>

namespace Vamos_Geometry
{
class Material
{
public:
    enum Material_Type
    { RUBBER, METAL, ASPHALT, CONCRETE, KERB, GRASS, GRAVEL, DIRT, AIR, UNKNOWN };

    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; }

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;
};
} // namespace Vamos_Geometry

#endif