A portable, open-source, coherent noise-generating library for C++
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    00001 // misc.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_MISC_H
    00024 #define NOISE_MISC_H
    00025
    00026 namespace noise
    00027 {
    00028
    00041   inline int ClampValue (int value, int lowerBound, int upperBound)
    00042   {
    00043     if (value < lowerBound) {
    00044       return lowerBound;
    00045     } else if (value > upperBound) {
    00046       return upperBound;
    00047     } else {
    00048       return value;
    00049     }
    00050   }
    00051
    00054
    00061   template <class T>
    00062   T GetMax (const T& a, const T& b)
    00063   {
    00064     return (a > b? a: b);
    00065   }
    00066
    00073   template <class T>
    00074   T GetMin (const T& a, const T& b)
    00075   {
    00076     return (a < b? a: b);
    00077   }
    00078
    00085   template <class T>
    00086   void SwapValues (T& a, T& b)
    00087   {
    00088     T c = a;
    00089     a = b;
    00090     b = c;
    00091   }
    00092
    00094
    00095 }
    00096
    00097 #endif