102 lines
2.6 KiB
C++
102 lines
2.6 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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#include "stdpacs.h"
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#include "exterior_mesh.h"
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#include "local_retriever.h"
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#include "collision_desc.h"
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using namespace std;
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using namespace NLMISC;
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namespace NLPACS
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{
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// Functions for vertices comparison.
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// total order relation
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static inline bool isStrictlyLess(const CVector &a, const CVector &b)
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{
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if (a.x < b.x) return true;
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if (a.x > b.x) return false;
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if (a.y < b.y) return true;
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if (a.y > b.y) return false;
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if (a.z < b.y) return true;
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return false;
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}
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static inline bool isStrictlyGreater(const CVector &a, const CVector &b)
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{
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if (a.x > b.x) return true;
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if (a.x < b.x) return false;
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if (a.y > b.y) return true;
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if (a.y < b.y) return false;
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if (a.z > b.y) return true;
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return false;
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}
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CExteriorMesh::CExteriorMesh() { }
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void CExteriorMesh::setEdges(const vector<CExteriorMesh::CEdge> &edges)
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{
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_Edges = edges;
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_OrderedEdges.clear();
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uint i;
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for (i=0; i+1<_Edges.size(); )
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{
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_OrderedEdges.resize(_OrderedEdges.size()+1);
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COrderedEdges &edges = _OrderedEdges.back();
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edges.Start = i;
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if (isStrictlyLess(_Edges[i].Start, _Edges[i+1].Start))
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{
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edges.Forward = true;
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do
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{
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++i;
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}
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while (i+1<_Edges.size() && _Edges[i].Link != -2 && isStrictlyLess(_Edges[i].Start, _Edges[i+1].Start));
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}
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else
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{
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edges.Forward = false;
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do
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{
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++i;
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}
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while (i+1<_Edges.size() && _Edges[i].Link != -2 && isStrictlyGreater(_Edges[i].Start, _Edges[i+1].Start));
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}
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edges.End = i;
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if (_Edges[i].Link == -2)
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++i;
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}
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}
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void CExteriorMesh::serial(NLMISC::IStream &f)
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{
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/*
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Version 0:
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- base version.
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*/
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(void)f.serialVersion(0);
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f.serialCont(_Edges);
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f.serialCont(_OrderedEdges);
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f.serialCont(_Links);
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f.serial(_BBox);
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}
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};
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