---

FaceCollisionModel.cpp

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/*
    TEDDY - General graphics application library
    Copyright (C) 1999-2002  Timo Suoranta
    tksuoran@cc.helsinki.fi

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library 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
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    $Id: FaceCollisionModel.cpp,v 1.2 2002/01/17 18:57:37 tksuoran Exp $
*/


#include "Teddy/Models/Face.h"
#if defined( TEDDY_INCLUDE_COLDET )
# include "Teddy/ColDet/ColDet.h"
#endif


namespace Teddy  {
namespace Models {


#if defined( TEDDY_INCLUDE_COLDET )
/*virtual*/ int Face::addToCollisionModel( Teddy::ColDet::CollisionModel3D *collision_model ){
    int tris = 0;
    list<Vertex*>::const_iterator v_it = vertices.begin();

    Vector a  = (*v_it)->getVertex(); v_it++; if( v_it == vertices.end() ) return 0;
    Vector b  = (*v_it)->getVertex(); v_it++;
    while( v_it != vertices.end() ){
        Vector c = (*v_it)->getVertex();
        FloatVector fa = a;
        FloatVector fb = b;
        FloatVector fc = c;
        collision_model->addTriangle( fa, fb, fc );
        a  = b;
        b  = c;
        tris++;
        v_it++;
    }
    return tris;
}
#endif


};  //  namespace Models
};  //  namespace Teddy