rigidmodel.h

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/*
    Sheep - A Rigid Body Dynamics Engine
    Copyright (C) 2001-2004 Francois Beaune
    Contact: http://toxicengine.sourceforge.net/

    This file is part of Sheep.

    Sheep 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.

    Sheep 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 Sheep; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#ifndef SHEEP_GEOMETRY_RIGIDMODEL_H
#define SHEEP_GEOMETRY_RIGIDMODEL_H

#include "common/math/vector3.h"

#include <cassert>
#include <vector>

namespace sheep {

    class RigidModel {
    public:
        struct Face {
            int m_v0, m_v1, m_v2;
            Vector3 m_n;
        };

        std::vector<Vector3> m_vertices;
        std::vector<Face> m_faces;

        bool IsClosed() const;
        bool IsConvex() const;

        typedef unsigned int FeatureId;

        Vector3 ComputeVertexNormal(FeatureId id) const;
        Vector3 ComputeFaceNormal(FeatureId id) const;

        static bool ArePointsSameSide(
            const Vector3 &p1, const Vector3 &p2,
            const Vector3 &a, const Vector3 &b);

        static bool IsPointInTriangle(
            const Vector3 &p,
            const Vector3 &a, const Vector3 &b, const Vector3 &c);
    };

#include "rigidmodel.inl"

}

#endif  // !SHEEP_GEOMETRY_RIGIDMODEL_H

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