A portable, open-source, coherent noise-generating library for C++

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# 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 noise
    00029 {
    00030
    00031   namespace module
    00032   {
    00033
    00036
    00039
    00043
    00067     class Cache: public Module
    00068     {
    00069
    00070       public:
    00071
    00073         Cache ();
    00074
    00075         virtual int GetSourceModuleCount () const
    00076         {
    00077           return 1;
    00078         }
    00079
    00080         virtual double GetValue (double x, double y, double z) const;
    00081
    00082         virtual void SetSourceModule (int index, const Module& sourceModule)
    00083         {
    00084           Module::SetSourceModule (index, sourceModule);
    00085           m_isCached = false;
    00086         }
    00087
    00088       protected:
    00089
    00091         mutable double m_cachedValue;
    00092
    00095         mutable double m_isCached;
    00096
    00098         mutable double m_xCache;
    00099
    00101         mutable double m_yCache;
    00102
    00104         mutable double m_zCache;
    00105
    00106     };
    00107
    00109
    00111
    00113
    00114   }
    00115
    00116 }
    00117
    00118 #endif