khanat-opennel-code/code/nel/include/nel/3d/surface_light_grid.h
2014-02-13 22:02:25 +01:00

119 lines
3.1 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_SURFACE_LIGHT_GRID_H
#define NL_SURFACE_LIGHT_GRID_H
#include "nel/misc/types_nl.h"
#include "nel/misc/stream.h"
#include "nel/misc/rgba.h"
#include "nel/misc/object_vector.h"
#include "nel/misc/vector_2f.h"
#include "nel/misc/vector.h"
#include "nel/3d/point_light_influence.h"
namespace NL3D
{
using NLMISC::CVector;
class CIGSurfaceLight;
// ***************************************************************************
/**
* Dynamic objects lighted by IG's Static Lights lookup into this grid.
* Builded by CInstanceLighter.
* Used by CIGSurfaceLight
* \author Lionel Berenguier
* \author Nevrax France
* \date 2002
*/
class CSurfaceLightGrid
{
/* ***********************************************
* WARNING: This Class/Method must be thread-safe (ctor/dtor/serial): no static access for instance
* It can be loaded/called through CAsyncFileManager for instance
* ***********************************************/
public:
/// We support only 2 light per corner. Should never be changed.
enum {NumLightPerCorner= 2};
struct CCellCorner
{
/// Contribution of Sun.
uint8 SunContribution;
/// Light that influence this point. 0xFF if none. if Light[i]==0xFF, then Light[j] with j>i is disabled too
uint8 Light[NumLightPerCorner];
/** Id of the ambiant Light to take for this corner. Ambient light are stored too in ig->getPointLigths()
* If 0xFF => take Ambient of the sun.
*/
uint8 LocalAmbientId;
void serial(NLMISC::IStream &f)
{
uint ver= f.serialVersion(1);
nlassert(NumLightPerCorner==2);
if(ver>=1)
{
f.serial(LocalAmbientId);
}
else if(f.isReading())
{
LocalAmbientId= 0xFF;
}
f.serial(SunContribution);
f.serial(Light[0]);
f.serial(Light[1]);
}
};
public:
// Origin of the grid. Size is (Width-1) * CIGSurfaceLight.getCellSize().
NLMISC::CVector2f Origin;
uint32 Width;
uint32 Height;
NLMISC::CObjectVector<CCellCorner> Cells;
public:
/// Constructor
CSurfaceLightGrid();
// Get Infos from the grid
void getStaticLightSetup(NLMISC::CRGBA sunAmbient, const CVector &localPos, std::vector<CPointLightInfluence> &pointLightList, uint8 &sunContribution, CIGSurfaceLight &igsl, NLMISC::CRGBA &localAmbient) const;
// serial
void serial(NLMISC::IStream &f);
};
} // NL3D
#endif // NL_SURFACE_LIGHT_GRID_H
/* End of surface_light_grid.h */