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