cstool/noise/module/cache.h
00001 // cache.h 00002 // 00003 // Copyright (C) 2003, 2004 Jason Bevins 00004 // 00005 // This library is free software; you can redistribute it and/or modify it 00006 // under the terms of the GNU Lesser General Public License as published by 00007 // the Free Software Foundation; either version 2.1 of the License, or (at 00008 // your option) any later version. 00009 // 00010 // This library is distributed in the hope that it will be useful, but WITHOUT 00011 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 00012 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 00013 // License (COPYING.txt) for more details. 00014 // 00015 // You should have received a copy of the GNU Lesser General Public License 00016 // along with this library; if not, write to the Free Software Foundation, 00017 // Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00018 // 00019 // The developer's email is jlbezigvins@gmzigail.com (for great email, take 00020 // off every 'zig'.) 00021 // 00022 00023 #ifndef NOISE_MODULE_CACHE_H 00024 #define NOISE_MODULE_CACHE_H 00025 00026 #include "modulebase.h" 00027 00028 namespace CS { 00029 namespace Math { 00030 namespace Noise { 00031 namespace Module { 00032 00035 00038 00042 00066 class CS_CRYSTALSPACE_EXPORT Cache: public Module 00067 { 00068 00069 public: 00070 00072 Cache (); 00073 00074 virtual int GetSourceModuleCount () const 00075 { 00076 return 1; 00077 } 00078 00079 virtual double GetValue (double x, double y, double z) const; 00080 00081 virtual void SetSourceModule (int index, const Module& sourceModule) 00082 { 00083 Module::SetSourceModule (index, sourceModule); 00084 m_isCached = false; 00085 } 00086 00087 protected: 00088 00090 mutable double m_cachedValue; 00091 00094 mutable double m_isCached; 00095 00097 mutable double m_xCache; 00098 00100 mutable double m_yCache; 00101 00103 mutable double m_zCache; 00104 00105 }; 00106 00108 00110 00112 00113 } // namespace Module 00114 } // namespace Noise 00115 } // namespace Math 00116 } // namespace CS 00117 00118 #endif
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