# Home    # nevrax.com   
Nevrax
Nevrax.org
#News
#Mailing-list
#Documentation
#CVS
#Bugs
#License
Docs
 
Documentation  
Main Page   Namespace List   Class Hierarchy   Alphabetical List   Compound List   File List   Namespace Members   Compound Members   File Members   Related Pages   Search  

visual_collision_manager.cpp

Go to the documentation of this file.
00001 
00007 /* Copyright, 2001 Nevrax Ltd.
00008  *
00009  * This file is part of NEVRAX NEL.
00010  * NEVRAX NEL is free software; you can redistribute it and/or modify
00011  * it under the terms of the GNU General Public License as published by
00012  * the Free Software Foundation; either version 2, or (at your option)
00013  * any later version.
00014 
00015  * NEVRAX NEL is distributed in the hope that it will be useful, but
00016  * WITHOUT ANY WARRANTY; without even the implied warranty of
00017  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
00018  * General Public License for more details.
00019 
00020  * You should have received a copy of the GNU General Public License
00021  * along with NEVRAX NEL; see the file COPYING. If not, write to the
00022  * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
00023  * MA 02111-1307, USA.
00024  */
00025 
00026 #include "std3d.h"
00027 
00028 #include "3d/visual_collision_manager.h"
00029 #include "3d/visual_collision_entity.h"
00030 #include "3d/landscape.h"
00031 #include "nel/misc/common.h"
00032 
00033 
00034 namespace NL3D 
00035 {
00036 
00037 
00038 // ***************************************************************************
00039 // Those blocks size are computed to be approximatively one block for 10 entities.
00040 const   uint    TileDescNodeAllocatorBlockSize= 40000;
00041 const   uint    PatchQuadBlockAllocatorBlockSize= 160;
00042 
00043 
00044 // ***************************************************************************
00045 CVisualCollisionManager::CVisualCollisionManager() : 
00046         _TileDescNodeAllocator(TileDescNodeAllocatorBlockSize), 
00047         _PatchQuadBlockAllocator(PatchQuadBlockAllocatorBlockSize)
00048 {
00049         _Landscape= NULL;
00050 
00051         // Default.
00052         setSunContributionPower(0.5f);
00053 }
00054 // ***************************************************************************
00055 CVisualCollisionManager::~CVisualCollisionManager()
00056 {
00057         _Landscape= NULL;
00058 }
00059 
00060 
00061 // ***************************************************************************
00062 void                                    CVisualCollisionManager::setLandscape(CLandscape *landscape)
00063 {
00064         _Landscape= landscape;
00065 }
00066 
00067 
00068 // ***************************************************************************
00069 CVisualCollisionEntity          *CVisualCollisionManager::createEntity()
00070 {
00071         return new CVisualCollisionEntity(this);
00072 }
00073 
00074 
00075 // ***************************************************************************
00076 void                                            CVisualCollisionManager::deleteEntity(CVisualCollisionEntity    *entity)
00077 {
00078         delete entity;
00079 }
00080 
00081 
00082 // ***************************************************************************
00083 CVisualTileDescNode             *CVisualCollisionManager::newVisualTileDescNode()
00084 {
00085         return _TileDescNodeAllocator.allocate();
00086 }
00087 
00088 // ***************************************************************************
00089 void                                    CVisualCollisionManager::deleteVisualTileDescNode(CVisualTileDescNode *ptr)
00090 {
00091         _TileDescNodeAllocator.free(ptr);
00092 }
00093 
00094 // ***************************************************************************
00095 CPatchQuadBlock                 *CVisualCollisionManager::newPatchQuadBlock()
00096 {
00097         return _PatchQuadBlockAllocator.allocate();
00098 }
00099 
00100 // ***************************************************************************
00101 void                                    CVisualCollisionManager::deletePatchQuadBlock(CPatchQuadBlock *ptr)
00102 {
00103         _PatchQuadBlockAllocator.free(ptr);
00104 }
00105 
00106 
00107 // ***************************************************************************
00108 void                                    CVisualCollisionManager::setSunContributionPower(float power)
00109 {
00110         NLMISC::clamp(power, 0.f, 1.f);
00111 
00112         for(uint i=0; i<256; i++)
00113         {
00114                 float   f= i/255.f;
00115                 f= powf(f, power);
00116                 sint    uf= (sint)floor(255*f);
00117                 NLMISC::clamp(uf, 0, 255);
00118                 _SunContributionLUT[i]= uf;
00119         }
00120 
00121 }
00122 
00123 
00124 
00125 } // NL3D