FastFakeRandom.cpp

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/*
--------------------------------------------------------------------------------
This source file is part of SkyX.
Visit http://www.paradise-studios.net/products/skyx/
 
Copyright (C) 2009-2012 Xavier Verguín González <xavyiy@gmail.com>
 
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
 
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
 
You should have received a copy of the GNU Lesser General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place - Suite 330, Boston, MA 02111-1307, USA, or go to
http://www.gnu.org/copyleft/lesser.txt.
--------------------------------------------------------------------------------
*/
 
#include "FastFakeRandom.h"
 
namespace SkyX { namespace VClouds
{
    FastFakeRandom::FastFakeRandom(const int &n, const Ogre::Real &min, const Ogre::Real &max)
        : mCapacity(n)
        , mIndex(-1)
    {
        mData = new float[n];
 
        for (int k = 0; k < n; k++)
        {
            mData[k] = Ogre::Math::RangeRandom(min, max);
        }
    }
 
    FastFakeRandom::~FastFakeRandom()
    {
        delete [] mData;
    }
 
    float& FastFakeRandom::get() 
    {
        mIndex ++; if (mIndex >= mCapacity) {mIndex = 0;}
 
        return mData[mIndex];
    }
 
}}