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_ANGLES_H 00023 #define FIFE_ANGLES_H 00024 00025 // Standard C++ library includes 00026 #include <map> 00027 00028 // 3rd party library includes 00029 00030 // FIFE includes 00031 // These includes are split up in two parts, separated by one empty line 00032 // First block: files included from the FIFE root src directory 00033 // Second block: files included from the same folder 00034 #include "model/structures/location.h" 00035 00036 namespace FIFE { 00037 typedef std::map<unsigned int, int> type_angle2id; 00038 00042 int getIndexByAngle(int angle, const type_angle2id& angle2id, int& closestMatchingAngle); 00043 00048 inline int getAngleBetween(const Location& loc1, const Location& loc2) { 00049 ExactModelCoordinate c1 = loc1.getMapCoordinates(); 00050 ExactModelCoordinate c2 = loc2.getMapCoordinates(); 00051 00052 double dy = (c2.y - c1.y); 00053 double dx = (c2.x - c1.x); 00054 00055 int angle = static_cast<int>(Mathd::ATan2(-dy,dx)*(180.0/Mathd::pi())); 00056 00057 return angle; 00058 } 00059 } 00060 00061 #endif