khanat-opennel-code/code/nel/include/nel/3d/zone_tgt_smoother.h
2010-06-12 12:17:29 +02:00

113 lines
2.8 KiB
C++

// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
// Copyright (C) 2010 Winch Gate Property Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#ifndef NL_ZONE_TGT_SMOOTHER_H
#define NL_ZONE_TGT_SMOOTHER_H
#include "nel/misc/types_nl.h"
#include "nel/3d/zone.h"
#include "nel/misc/common.h"
#include <map>
#include <list>
#include <vector>
namespace NL3D
{
// ***************************************************************************
/**
* A class used to make Vertices coplanar IN or/and across zones.
* \author Lionel Berenguier
* \author Nevrax France
* \date 2000
*/
class CZoneTgtSmoother
{
public:
/// Constructor
CZoneTgtSmoother() {}
/// Doit method. zones are modified. zones[0] is the center zones. Other are border zones.
void makeVerticesCoplanar(std::vector<CZoneInfo> &zones);
// *************************
private:
struct CPatchId
{
// The unique Id of the patch.
uint16 ZoneId;
uint16 PatchId;
// a ptr on the patch.
CPatchInfo* Patch;
// [0,3]. which vertex of this patch points on the vertex.
sint IdVert;
// local index on tangentes, around the vertex.
sint Tangents[2];
};
struct CTangentId
{
uint16 ZoneId;
uint16 PatchId;
sint EdgeId;
// The two patchs which share the tangent.
CPatchInfo *Patchs[2];
// The value of this tangent.
CVector Tangent;
bool isOppositeOf(const CTangentId &tgt)
{
// 4x4 configuartion only.
// The opposite tangent do not have the same patchs which share this tangent.
if(Patchs[0]==tgt.Patchs[0]) return false;
if(Patchs[0]==tgt.Patchs[1]) return false;
if(Patchs[1]==tgt.Patchs[0]) return false;
if(Patchs[1]==tgt.Patchs[1]) return false;
return true;
}
};
struct CVertexInfo
{
// neighbors patchs.
std::list<CPatchId> Patchs;
bool OnBorder;
CVertexInfo()
{
OnBorder= false;
}
};
typedef std::map<sint, CVertexInfo> TVertexMap;
typedef TVertexMap::iterator ItVertexMap;
private:
TVertexMap VertexMap;
};
} // NL3D
#endif // NL_ZONE_TGT_SMOOTHER_H
/* End of zone_tgt_smoother.h */