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649 lines
19 KiB
C++
649 lines
19 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef NL_LOCAL_RETRIEVER_H
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#define NL_LOCAL_RETRIEVER_H
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#include <vector>
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#include <string>
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#include <list>
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#include "nel/misc/types_nl.h"
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#include "nel/misc/vector.h"
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#include "nel/misc/file.h"
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#include "nel/misc/aabbox.h"
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#include "nel/misc/polygon.h"
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#include "vector_2s.h"
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#include "surface_quad.h"
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#include "chain.h"
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#include "retrievable_surface.h"
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#include "chain_quad.h"
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#include "exterior_mesh.h"
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#include "face_grid.h"
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#include "nel/pacs/u_global_position.h"
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namespace NLPACS
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{
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class CCollisionSurfaceTemp;
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/**
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* A surface retriever, located by its bounding box.
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* \author Benjamin Legros
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* \author Nevrax France
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* \date 2001
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*/
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class CLocalRetriever
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{
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public:
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/**
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* A tip of several chains. A CTip can contain more than 2 chains.
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* \author Benjamin Legros
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* \author Nevrax France
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* \date 2001
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*/
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class CTip
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{
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public:
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/**
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* A chain tip. Contains the id of the chain and whether this tip is the start of the chain.
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* \author Benjamin Legros
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* \author Nevrax France
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* \date 2001
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*/
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struct CChainTip
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{
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/// The id of the chain.
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sint32 Chain;
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/// True if this tip is the beginning of the chain.
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bool Start;
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/// Constructor.
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CChainTip(sint32 chainId = 0, bool start = 0) : Chain(chainId), Start(start) {}
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/// Serielaises the CChainTip
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void serial(NLMISC::IStream &f) { f.serial(Chain, Start); }
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};
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CTip() : Point(NLMISC::CVector::Null) {}
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/// The position of the tip.x
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NLMISC::CVector Point;
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// The chains linked to that tip.
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std::vector<CChainTip> Chains;
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public:
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/// Serialises the CTip.
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void serial(NLMISC::IStream &f)
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{
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f.serial(Point);
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f.serialCont(Chains);
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}
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/// Translates the CTip by the translation vector.
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void translate(const NLMISC::CVector &translation)
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{
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Point += translation;
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}
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};
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/**
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* A topology. It's a set of surfaces which are definning a connex master surface.
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* \author Benjamin Legros
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* \author Nevrax France
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* \date 2001
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*/
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class CTopology : public std::vector<sint32>
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{
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public:
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void serial(NLMISC::IStream &f) { f.serialCont(*this); }
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};
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/**
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* An estimation of the position of a point on a specified surface.
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* The estimated position is LOCAL reference to the retriever axis.
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* \author Benjamin Legros
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* \author Nevrax France
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* \date 2001
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*/
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class CLocalPosition : public ULocalPosition
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{
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public:
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/// Constructor.
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CLocalPosition(sint32 surface=-1, const NLMISC::CVector &estimation=NLMISC::CVector::Null)
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{
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Surface=surface;
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Estimation=estimation;
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}
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/// Serialises the CLocalPosition.
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//void serial(NLMISC::IStream &f) { f.serial(Surface, Estimation); }
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};
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/**
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* The different types of retriever (landscape or interior.)
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* \author Benjamin Legros
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* \author Nevrax France
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* \date 2001
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*/
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enum EType
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{
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Landscape = 0,
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Interior
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};
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/**
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* The faces used for snapping in interior retrievers.
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* \author Benjamin Legros
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* \author Nevrax France
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* \date 2001
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*/
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class CInteriorFace
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{
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public:
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uint32 Verts[3];
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uint32 Surface;
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public:
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void serial(NLMISC::IStream &f) { f.serial(Verts[0], Verts[1], Verts[2], Surface); }
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};
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/**
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* An iterator to go through chains without bothering about ordered chains and those kind of f*cking stuffs
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* \author Benjamin Legros
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* \author Nevrax France
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* \date 2003
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*/
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class CIterator
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{
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friend class CLocalRetriever;
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protected:
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/// The referent retriever
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const CLocalRetriever *_Retriever;
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/// Chain Id
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uint16 _Chain;
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/// The current ochain in chain
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uint16 _OChainIndex;
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/// The current vertex in ochain
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sint16 _IndexInOChain;
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/// Max index in ochain
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sint16 _MaxIndexInOChain;
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/// Is ochain forward?
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bool _OChainForward;
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public:
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/// Constructor
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CIterator(const CLocalRetriever *retriever, uint chain)
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{
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_Retriever = retriever;
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_Chain = uint16(chain);
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_OChainIndex = 0;
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_IndexInOChain = 0;
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_MaxIndexInOChain = 0;
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_OChainForward = 0;
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setupIndex();
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}
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CIterator &operator ++ ()
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{
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const CChain &chain = _Retriever->getChain(_Chain);
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if (_OChainIndex >= chain.getSubChains().size())
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return *this;
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if (_OChainForward)
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{
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++_IndexInOChain;
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if (((sint)_OChainIndex < (sint)chain.getSubChains().size()-1 && _IndexInOChain == _MaxIndexInOChain) || _IndexInOChain > _MaxIndexInOChain)
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{
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++_OChainIndex;
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setupIndex();
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}
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}
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else
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{
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--_IndexInOChain;
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if (((sint)_OChainIndex < (sint)chain.getSubChains().size()-1 && _IndexInOChain == 0) || _IndexInOChain < 0)
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{
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++_OChainIndex;
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setupIndex();
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}
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}
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return *this;
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}
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CVector2s operator * () const
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{
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if (end())
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return CVector2s();
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return _Retriever->getOrderedChain(_Retriever->getChain(_Chain).getSubChain(_OChainIndex))[_IndexInOChain];
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}
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CVector get3d() const
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{
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if (end())
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return CVector::Null;
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return _Retriever->getFullOrderedChain(_Retriever->getChain(_Chain).getSubChain(_OChainIndex))[_IndexInOChain];
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}
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/// Test end
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bool end() const
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{
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return (_OChainIndex >= _Retriever->getChain(_Chain).getSubChains().size());
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}
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private:
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/// Setup index in ochain
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void setupIndex()
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{
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const CChain &chain = _Retriever->getChain(_Chain);
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if (_OChainIndex >= chain.getSubChains().size())
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return;
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const COrderedChain &ochain = _Retriever->getOrderedChain(chain.getSubChain(_OChainIndex));
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_OChainForward = ochain.isForward();
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_MaxIndexInOChain = sint16(ochain.getVertices().size()-1);
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_IndexInOChain = (_OChainForward ? 0 : _MaxIndexInOChain);
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}
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};
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protected:
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friend class CRetrieverInstance;
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/// The chains insinde the zone.
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std::vector<COrderedChain> _OrderedChains;
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std::vector<COrderedChain3f> _FullOrderedChains;
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/// The chains insinde the zone.
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std::vector<CChain> _Chains;
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/// The surfaces inside the zone.
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std::vector<CRetrievableSurface> _Surfaces;
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/// The bbox of the local retriever
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NLMISC::CAABBox _BBox;
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/// The tips making links between different chains.
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std::vector<CTip> __Tips;
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/// The chains on the edges of the zone.
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std::vector<uint16> _BorderChains;
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/// The topologies within the zone.
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std::vector<CTopology> _Topologies[NumMaxCreatureModels];
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/// The tip recognition threshold
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static const float _TipThreshold;
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/// The tip recognition threshold
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static const float _EdgeTipThreshold;
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/// For collisions, the chainquad.
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CChainQuad _ChainQuad;
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/// The type of the retriever
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EType _Type;
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/// \name Internior retriever specific
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// @{
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/// The exterior mesh, for collisions
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CExteriorMesh _ExteriorMesh;
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/// The vertices of the collision mesh
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std::vector<NLMISC::CVector> _InteriorVertices;
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/// The faces of the collision mesh
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std::vector<CInteriorFace> _InteriorFaces;
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/// The face selection grid
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CFaceGrid _FaceGrid;
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/// An human readable identifier of the retriever.
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std::string _Id;
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// @}
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/// Tells if retriever is loaded
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bool _Loaded;
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public:
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///
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bool LoadCheckFlag;
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private:
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/// The intersection between an ordered chain and the path.
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struct CIntersectionMarker
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{
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float Position;
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uint16 OChain;
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uint16 Edge;
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bool In;
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CIntersectionMarker() {}
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CIntersectionMarker(float position, uint16 ochain, uint16 edge, bool in) : Position(position), OChain(ochain), Edge(edge), In(in) {}
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bool operator< (const CIntersectionMarker &comp) const { return Position < comp.Position; }
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};
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public:
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/// @name Constructors
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// @{
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CLocalRetriever();
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// @}
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/// @name Selectors
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// @{
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/// Returns the chain tips inside the local retrievers.
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//const std::vector<CTip> &getTips() const { return _Tips; }
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/// Returns the nth tip in the retriever.
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//const CTip &getTip(uint n) const { return _Tips[n]; }
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/// Returns the ordered chains.
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const std::vector<COrderedChain> &getOrderedChains() const { return _OrderedChains; }
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/// Returns the nth ordered chain.
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const COrderedChain &getOrderedChain(uint n) const { return _OrderedChains[n]; }
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/// Returns the full ordered chains.
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const std::vector<COrderedChain3f> &getFullOrderedChains() const { return _FullOrderedChains; }
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/// Returns the nth full ordered chain.
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const COrderedChain3f &getFullOrderedChain(uint n) const { return _FullOrderedChains[n]; }
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/// Returns the chains.
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const std::vector<CChain> &getChains() const { return _Chains; }
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/// retruns the nth chain.
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const CChain &getChain(uint n) const { return _Chains[n]; }
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/// Returns the ids of the chains on the edges of the retriever.
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const std::vector<uint16> &getBorderChains() const { return _BorderChains; }
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/// Returns the id of the nth chain on the edges of the retriever.
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uint16 getBorderChain(uint n) const { return _BorderChains[n]; }
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/// Returns the surfaces.
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const std::vector<CRetrievableSurface> &getSurfaces() const { return _Surfaces; }
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/// Returns the nth surface.
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const CRetrievableSurface &getSurface(uint n) const { return _Surfaces[n]; }
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/// Returns the type of the retriever
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EType getType() const { return _Type; }
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/// Returns the bbox
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const NLMISC::CAABBox &getBBox() const { return _BBox; }
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/// Returns the exterior mesh of the retriever
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const CExteriorMesh &getExteriorMesh() const { return _ExteriorMesh; }
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/// Returns the interior vertices
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const std::vector<NLMISC::CVector> &getInteriorVertices() const { return _InteriorVertices; }
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/// Returns the interior faces
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const std::vector<CInteriorFace> &getInteriorFaces() const { return _InteriorFaces; }
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/// Returns the identifier of the retriever.
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const std::string &getIdentifier() const { return _Id; }
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/// Is loaded ?
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bool isLoaded() const { return _Loaded; }
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/// Force Loaded State.
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void forceLoaded(bool state) { _Loaded= state; }
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/// build BBoxes of interior surfaces in surfaceBBoxes (cleared first)
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void buildInteriorSurfaceBBoxes(std::vector<NLMISC::CAABBox> &surfaceBBoxes) const;
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/// Builds the polygons (loops) of a given surface
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void buildSurfacePolygons(uint32 surface, std::list<NLMISC::CPolygon> &polygons) const;
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/// Builds the polygons (loops) of all surfaces in the retriever
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void buildSurfacePolygons(std::list< std::list<NLMISC::CPolygon> > &polygons) const
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{
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uint i;
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for (i=0; i<_Surfaces.size(); ++i)
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{
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polygons.push_back(std::list<NLMISC::CPolygon>());
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buildSurfacePolygons(i, polygons.back());
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}
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}
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/// Builds the polygons (loops) of a given surface
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void build3dSurfacePolygons(uint32 surface, std::list<NLMISC::CPolygon> &polygons) const;
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/// Builds the polygons (loops) of all surfaces in the retriever
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void build3dSurfacePolygons(std::list< std::list<NLMISC::CPolygon> > &polygons) const
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{
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uint i;
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for (i=0; i<_Surfaces.size(); ++i)
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{
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polygons.push_back(std::list<NLMISC::CPolygon>());
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build3dSurfacePolygons(i, polygons.back());
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}
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}
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// @}
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/// @name Mutators
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//@{
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/// Adds a surface to the local retriever, using its features. Returns the id of the newly created surface.
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sint32 addSurface(uint8 normalq, uint8 orientationq,
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uint8 mat, uint8 charact, uint8 level,
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bool isUnderWater, float waterHeight,
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bool clusterHint,
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const NLMISC::CVector ¢er,
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const CSurfaceQuadTree &quad,
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sint8 quantHeight = 0);
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/**
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* Adds a chain to the local retriever, using the vertices of the chain,
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* the left and right surfaces id and the edge on which the chain is stuck
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*/
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sint32 addChain(const std::vector<NLMISC::CVector> &vertices,
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sint32 left, sint32 right);
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/// Set the type of the retriever (see EType)
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void setType(EType type) { _Type = type; }
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/// Sets the exterior mesh
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void setExteriorMesh(const CExteriorMesh &em) { _ExteriorMesh = em; }
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/// Sets the bbox of the retriever
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void setBBox(const NLMISC::CAABBox &bbox) { _BBox = bbox; }
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/// Returns the interior vertices
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std::vector<NLMISC::CVector> &getInteriorVertices() { return _InteriorVertices; }
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/// Returns the interior faces
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std::vector<CInteriorFace> &getInteriorFaces() { return _InteriorFaces; }
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/// Returns the identifier of the retriever.
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void setIdentifier(const std::string &id) { _Id = id; }
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/// Returns the chain quad
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CChainQuad &getChainQuad() { return _ChainQuad; }
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/// Inits the face grid
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void initFaceGrid();
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/// Builds topologies tables.
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void computeTopologies();
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/// Builds tips
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void computeLoopsAndTips();
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/// Found chains on the edges of the retriever and fills _BorderChains tables.
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void findBorderChains();
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/// Updates surfaces links from the links contained in the chains...
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void updateChainIds();
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/// Sorts chains references inside the tips. NOT IMPLEMENTED YET.
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void sortTips();
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/// Translates the local retriever by the translation vector.
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void translate(const NLMISC::CVector &translation);
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///
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void flushFullOrderedChains() { _FullOrderedChains.clear(); }
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///
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void setFullOrderedChains(const std::vector<COrderedChain3f> &foc) { _FullOrderedChains = foc; }
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/// Serialises the CLocalRetriever.
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void serial(NLMISC::IStream &f);
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/// Clear
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void clear();
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// @}
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/// \name Collisions part.
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// @{
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/// compute the chain quad, used for collisions. the ChainQuad is serialised in serial(). _OrderedChains must be OK.
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void computeCollisionChainQuad();
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/** add possible collisions chains to the temp result.
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* \param cst the temp result to store collision chains. they are appened to cst.CollisionChains.
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* \param bboxMove the bbox which bounds the movement of the entity.
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* \param transBase the vector we use to translate local position of edge.
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*/
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void testCollision(CCollisionSurfaceTemp &cst, const NLMISC::CAABBox &bboxMove, const NLMISC::CVector2f &transBase) const;
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/**
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* Check all surfaces integrity
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*/
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bool checkSurfacesIntegrity(NLMISC::CVector translation = NLMISC::CVector::Null, bool verbose = false) const;
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/**
|
|
* Check surface integrity
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|
*/
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bool checkSurfaceIntegrity(uint surf, NLMISC::CVector translation = NLMISC::CVector::Null, bool verbose = false) const;
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// @}
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|
|
|
/*
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|
protected:
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|
*/
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|
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/// Assures a position is really inside a surface (and independent from any accuracy issue) and returns true if the position was moved.
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|
bool insurePosition(ULocalPosition &local) const;
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|
|
|
/// Retrieves a position inside the retriever (from the local position), returns true if the position is close to a border
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|
void retrievePosition(NLMISC::CVector estimated, CCollisionSurfaceTemp &cst) const;
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|
|
|
/// Retrieves a position inside the retriever (from the local position), returns true if the position is close to a border
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|
void retrieveAccuratePosition(CVector2s estimated, CCollisionSurfaceTemp &cst, bool &onBorder) const;
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|
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/// Retrieves a position inside the retriever (from the local position), returns true if the position is close to a border
|
|
bool testPosition(ULocalPosition &local, CCollisionSurfaceTemp &cst) const;
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|
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|
/// Snaps on the ground
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|
void snapToInteriorGround(ULocalPosition &position, bool &snapped) const;
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|
|
|
/// Get the height of surface that matches the best this position
|
|
float getHeight(const ULocalPosition &position) const;
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|
|
|
/// Finds a path in a given surface, from the point A to the point B.
|
|
void findPath(const CLocalPosition &A, const CLocalPosition &B, std::vector<CVector2s> &path, NLPACS::CCollisionSurfaceTemp &cst) const;
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|
|
|
///
|
|
void unify();
|
|
|
|
/** Get the height of interior surface that matches the best this position. Allows the position to be a bit outside the triangles.
|
|
* return 0 if not loaded or not an interior surface.
|
|
* \param outsideTolerance how much are we allowed to look outside the triangles
|
|
*/
|
|
float getInteriorHeightAround(const ULocalPosition &position, float outsideTolerance) const;
|
|
|
|
|
|
public:
|
|
|
|
// Last minute fix... Some issues appeared when linking (trying to link 2 chains with only 1 in the neighbourhood)
|
|
|
|
class CChainReplacement
|
|
{
|
|
public:
|
|
uint Chain;
|
|
sint Left, Right;
|
|
std::vector<NLMISC::CVector> Vertices;
|
|
};
|
|
|
|
// temp object to store replaced ochain ids
|
|
std::vector<uint> FreeOChains;
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|
|
|
void replaceChain(uint32 chainId, const std::vector<CChainReplacement> &replacement);
|
|
|
|
void forceBorderChainId(uint32 chainId, uint32 borderId)
|
|
{
|
|
if (chainId >= _Chains.size())
|
|
{
|
|
nlwarning("forceBorderChainId(): couldn't force border id %d for chain %d, doesn't exist", borderId, chainId);
|
|
return;
|
|
}
|
|
|
|
_Chains[chainId].setBorderChainIndex(borderId);
|
|
}
|
|
|
|
public:
|
|
const NLMISC::CVector &getStartVector(uint32 chain) const;
|
|
const NLMISC::CVector &getStopVector(uint32 chain) const;
|
|
|
|
const NLMISC::CVector &getStartVector(uint32 chain, sint32 surface) const;
|
|
const NLMISC::CVector &getStopVector(uint32 chain, sint32 surface) const;
|
|
/*
|
|
uint16 getStartTip(uint32 chain, sint32 surface) const;
|
|
uint16 getStopTip(uint32 chain, sint32 surface) const;
|
|
|
|
void setStartTip(uint32 chain, sint32 surface, uint16 startTip);
|
|
void setStopTip(uint32 chain, sint32 surface, uint16 stopTip);
|
|
*/
|
|
uint32 getPreviousChain(uint32 chain, sint32 surface) const;
|
|
uint32 getNextChain(uint32 chain, sint32 surface) const;
|
|
|
|
public:
|
|
void dumpSurface(uint surf, const NLMISC::CVector &vect = NLMISC::CVector::Null) const;
|
|
|
|
float distanceToBorder(const ULocalPosition &pos) const;
|
|
};
|
|
|
|
}; // NLPACS
|
|
|
|
#endif // NL_LOCAL_RETRIEVER_H
|
|
|
|
/* End of local_retriever.h */
|