/* * 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 */ #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