fife_math.h

00001 /***************************************************************************
00002  *   Copyright (C) 2005-2008 by the FIFE team                              *
00003  *   http://www.fifengine.de                                               *
00004  *   This file is part of FIFE.                                            *
00005  *                                                                         *
00006  *   FIFE is free software; you can redistribute it and/or                 *
00007  *   modify it under the terms of the GNU Lesser General Public            *
00008  *   License as published by the Free Software Foundation; either          *
00009  *   version 2.1 of the License, or (at your option) any later version.    *
00010  *                                                                         *
00011  *   This library is distributed in the hope that it will be useful,       *
00012  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
00013  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
00014  *   Lesser General Public License for more details.                       *
00015  *                                                                         *
00016  *   You should have received a copy of the GNU Lesser General Public      *
00017  *   License along with this library; if not, write to the                 *
00018  *   Free Software Foundation, Inc.,                                       *
00019  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
00020  ***************************************************************************/
00021 
00022 #ifndef FIFE_UTIL_FIFE_MATH_H
00023 #define FIFE_UTIL_FIFE_MATH_H
00024 
00025 // Standard C++ library includes
00026 #include <cmath>
00027 
00028 // Platform specific includes 
00029 
00030 // 3rd party library includes
00031 
00032 // FIFE includes
00033 // These includes are split up in two parts, separated by one empty line
00034 // First block: files included from the FIFE root src directory
00035 // Second block: files included from the same folder
00036 
00037 
00038 // Sort out the missing round function in MSVC:
00039 #if defined( WIN32 ) && defined( _MSC_VER )
00040 inline double round(const double x) {
00041     return x < 0.0 ? ceil(x - 0.5) : floor(x + 0.5); 
00042 }
00043 #endif
00044 
00045 #ifndef ABS
00046 #define ABS(x) ((x)<0?-(x):(x))
00047 
00048 #endif
00049 
00050 #ifndef M_PI
00051 #define M_PI        3.14159265358979323846
00052 
00053 #endif
00054 
00055 #endif // FIFE_UTIL_FIFE_MATH_H
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