00001 /****************************************************************************/ 00007 // 00008 /****************************************************************************/ 00009 // SUMO, Simulation of Urban MObility; see http://sumo.sourceforge.net/ 00010 // Copyright 2001-2010 DLR (http://www.dlr.de/) and contributors 00011 /****************************************************************************/ 00012 // 00013 // This program is free software; you can redistribute it and/or modify 00014 // it under the terms of the GNU General Public License as published by 00015 // the Free Software Foundation; either version 2 of the License, or 00016 // (at your option) any later version. 00017 // 00018 /****************************************************************************/ 00019 00020 00021 // =========================================================================== 00022 // included modules 00023 // =========================================================================== 00024 #ifdef _MSC_VER 00025 #include <windows_config.h> 00026 #else 00027 #include <config.h> 00028 #endif 00029 00030 #include <utils/options/OptionsCont.h> 00031 #include "RandHelper.h" 00032 #include <ctime> 00033 #include <cmath> 00034 00035 #ifdef CHECK_MEMORY_LEAKS 00036 #include <foreign/nvwa/debug_new.h> 00037 #endif // CHECK_MEMORY_LEAKS 00038 00039 00040 // =========================================================================== 00041 // static member variables 00042 // =========================================================================== 00043 MTRand RandHelper::myRandomNumberGenerator; 00044 00045 00046 // =========================================================================== 00047 // member method definitions 00048 // =========================================================================== 00049 void 00050 RandHelper::insertRandOptions() { 00051 OptionsCont &oc = OptionsCont::getOptions(); 00052 // registers random number options 00053 oc.addOptionSubTopic("Random Number"); 00054 00055 oc.doRegister("srand", new Option_Integer(23423)); 00056 oc.addDescription("srand", "Random Number", "Initialises the random number generator with the given value"); 00057 00058 oc.doRegister("abs-rand", new Option_Bool(false)); 00059 oc.addDescription("abs-rand", "Random Number", "Initialises the random number generator with the current system time"); 00060 } 00061 00062 00063 void 00064 RandHelper::initRandGlobal() { 00065 OptionsCont &oc = OptionsCont::getOptions(); 00066 if (oc.getBool("abs-rand")) { 00067 myRandomNumberGenerator.seed(); 00068 } else { 00069 myRandomNumberGenerator.seed(oc.getInt("srand")); 00070 } 00071 } 00072 00073 00074 /****************************************************************************/ 00075
1.5.6