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vertexlistwalker.h
00001 /* 00002 Copyright (C) 2005 by Marten Svanfeldt 00003 00004 This library is free software; you can redistribute it and/or 00005 modify it under the terms of the GNU Library General Public 00006 License as published by the Free Software Foundation; either 00007 version 2 of the License, or (at your option) any later version. 00008 00009 This library is distributed in the hope that it will be useful, 00010 but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00012 Library General Public License for more details. 00013 00014 You should have received a copy of the GNU Library General Public 00015 License along with this library; if not, write to the Free 00016 Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 00017 */ 00018 00019 #ifndef __CS_CSGFX_VERTEXLISTWALKER_H__ 00020 #define __CS_CSGFX_VERTEXLISTWALKER_H__ 00021 00026 template<class T> 00027 class csVertexListWalker 00028 { 00029 public: 00036 csVertexListWalker (void *listPointer, size_t elements, size_t dist = sizeof(T)) 00037 : list ((uint8*)listPointer), elements (elements), dist (dist), currElement (0) 00038 { 00039 if (dist == 0) 00040 this->dist = sizeof(T); 00041 } 00042 00044 T& operator*() 00045 { 00046 return *((T*)(list+currElement*dist)); 00047 } 00048 00050 T& operator[] (size_t n) 00051 { 00052 CS_ASSERT (n<elements); 00053 return *((T*)(list+n*dist)); 00054 } 00055 00057 void operator++ () 00058 { 00059 currElement++; 00060 CS_ASSERT(currElement<elements); 00061 } 00062 00063 private: 00065 uint8 *list; 00067 size_t elements; 00069 size_t dist; 00071 size_t currElement; 00072 }; 00073 00074 #endif
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