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/*
* The Mana World Server
* Copyright 2004 The Mana World Development Team
*
* This file is part of The Mana World.
*
* The Mana World is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or any later version.
*
* The Mana World 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 General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with The Mana World; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id$
*/
#ifndef _TMWSERV_MATHUTILS_H_
#define _TMWSERV_MATHUTILS_H_
namespace utils
{
namespace math
{
/**
* A very fast function to calculate the approximate inverse square
* root of a floating point value.
*/
float fastInvSqrt(float x);
/**
* A helper function that uses the fastInvSqrt for getting the
* normal squareroot.
*/
float fastSqrt(float x);
float cachedSin(int angle);
float cachedCos(int angle);
float cachedTan(int angle);
void init();
} // namespace math
} // namespace utils
#endif
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