mirror of
https://github.com/bulletphysics/bullet3
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90 lines
3.1 KiB
C++
90 lines
3.1 KiB
C++
/*
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Bullet Continuous Collision Detection and Physics Library
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Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/
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EPA Copyright (c) Ricardo Padrela 2006
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This software is provided 'as-is', without any express or implied warranty.
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In no event will the authors be held liable for any damages arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it freely,
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subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#ifndef EPA_POLYHEDRON_H
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#define EPA_POLYHEDRON_H
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class EpaFace;
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class EpaVertex;
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//! Note : This class is not supposed to be a base class
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class EpaPolyhedron
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{
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private :
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//! Prevents copying objects from this class
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EpaPolyhedron( const EpaPolyhedron& epaPolyhedron );
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const EpaPolyhedron& operator = ( const EpaPolyhedron& epaPolyhedron );
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public :
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EpaPolyhedron();
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~EpaPolyhedron();
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bool Create( btPoint3* pInitialPoints,
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btPoint3* pSupportPointsOnA, btPoint3* pSupportPointsOnB,
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const int nbInitialPoints );
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void Destroy();
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EpaFace* CreateFace();
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EpaHalfEdge* CreateHalfEdge();
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EpaVertex* CreateVertex( const btPoint3& wSupportPoint,
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const btPoint3& wSupportPointOnA,
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const btPoint3& wSupportPointOnB );
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void DeleteFace( EpaFace* pFace );
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void DestroyAllFaces();
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void DestroyAllHalfEdges();
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void DestroyAllVertices();
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bool Expand( const btPoint3& wSupportPoint,
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const btPoint3& wSupportPointOnA,
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const btPoint3& wSupportPointOnB,
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EpaFace* pFace, std::list< EpaFace* >& newFaces );
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std::list< EpaFace* >& GetFaces();
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int GetNbFaces() const;
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private :
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void DeleteVisibleFaces( const btPoint3& point, EpaFace* pFace,
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std::list< EpaHalfEdge* >& coneBaseTwinHalfEdges );
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void CreateCone( EpaVertex* pAppexVertex, std::list< EpaHalfEdge* >& baseTwinHalfEdges,
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std::list< EpaFace* >& newFaces );
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EpaFace* CreateConeFace( EpaVertex* pAppexVertex, EpaHalfEdge* pBaseTwinHalfEdge,
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std::list< EpaHalfEdge* >& halfEdgesToLink );
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#ifdef _DEBUG
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public :
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//! Please don't remove this method, it will help debugging if some problems arise in the future
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bool _dbgSaveToFile( const char* pFileName );
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#endif
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private :
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//! This is the number of valid faces, m_faces list also contain deleted faces
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int m_nbFaces;
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std::list< EpaFace* > m_faces;
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std::list< EpaHalfEdge* > m_halfEdges;
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std::list< EpaVertex* > m_vertices;
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};
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#endif
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