98 lines
2.9 KiB
C++
98 lines
2.9 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_PACKED_WORLD
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#define NL_PACKED_WORLD
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#include "nel/3d/packed_zone.h"
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//
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#include "nel/misc/array_2d.h"
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#include "nel/misc/stream.h"
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#include "nel/misc/triangle.h"
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//
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#include <vector>
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namespace NLMISC
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{
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class CVector;
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}
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namespace NL3D
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{
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/** A set of packed zones
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* Allows for world scale collision test with a packed format
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*
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* \author Nicolas Vizerie
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* \author Nevrax France
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* \date 2005
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*/
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class CPackedWorld
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{
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public:
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// list of zones that goes into this packed world (used by incremental build to know if some
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// zones need to be rebuilt)
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std::vector<std::string> ZoneNames;
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public:
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// build world from a set of packed zones
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void build(std::vector<TPackedZoneBaseSPtr> &packesZones);
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bool raytrace(const NLMISC::CVector &start, const NLMISC::CVector &end, NLMISC::CVector &inter, std::vector<NLMISC::CTriangle> *testedTriangles = NULL, NLMISC::CVector *normal = NULL);
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void getZones(std::vector<TPackedZoneBaseSPtr> &zones);
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void serial(NLMISC::IStream &f) throw(NLMISC::EStream);
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// just serialize the header, containing name of the zones this CPackedWorld was built from
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void serialZoneNames(NLMISC::IStream &f) throw(NLMISC::EStream);
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/** Roughly select triangles that are within a convex 2D polygon (world coordinates)
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* Selection is not exact, because limited to the resolution of the grid into which is packed each zone.
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* Triangle that are within are guaranteed to be selected, however.
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*/
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void select(const NLMISC::CPolygon2D &poly, std::vector<NLMISC::CTriangle> &selectedTriangles) const;
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private:
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class CZoneInfo
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{
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public:
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TPackedZoneBaseSPtr Zone;
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uint32 RaytraceCounter;
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void serial(NLMISC::IStream &f) throw(NLMISC::EStream)
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{
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f.serialVersion(1);
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CPackedZoneBase *pz = Zone;
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f.serialPolyPtr(pz);
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Zone = pz;
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}
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};
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std::vector<CZoneInfo> _Zones;
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class CZoneIndexList
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{
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public:
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std::vector<uint32> IDs; // make a class from this vector just for serialization
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void serial(NLMISC::IStream &f) throw(NLMISC::EStream)
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{
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f.serialCont(IDs);
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}
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};
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NLMISC::CArray2D<CZoneIndexList> _ZoneGrid;
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sint32 _ZoneMinX;
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sint32 _ZoneMinY;
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uint32 _RaytraceCounter;
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};
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} // NL3D
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#endif
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