SUMO - Simulation of Urban MObility
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00001 /****************************************************************************/ 00008 // 00009 /****************************************************************************/ 00010 // SUMO, Simulation of Urban MObility; see http://sumo.sourceforge.net/ 00011 // Copyright (C) 2001-2012 DLR (http://www.dlr.de/) and contributors 00012 /****************************************************************************/ 00013 // 00014 // This file is part of SUMO. 00015 // SUMO is free software: you can redistribute it and/or modify 00016 // it under the terms of the GNU General Public License as published by 00017 // the Free Software Foundation, either version 3 of the License, or 00018 // (at your option) any later version. 00019 // 00020 /****************************************************************************/ 00021 00022 00023 // =========================================================================== 00024 // included modules 00025 // =========================================================================== 00026 #ifdef _MSC_VER 00027 #include <windows_config.h> 00028 #else 00029 #include <config.h> 00030 #endif 00031 00032 #include <utils/options/OptionsCont.h> 00033 #include "RandHelper.h" 00034 #include <ctime> 00035 #include <cmath> 00036 00037 #ifdef CHECK_MEMORY_LEAKS 00038 #include <foreign/nvwa/debug_new.h> 00039 #endif // CHECK_MEMORY_LEAKS 00040 00041 00042 // =========================================================================== 00043 // static member variables 00044 // =========================================================================== 00045 MTRand RandHelper::myRandomNumberGenerator; 00046 00047 00048 // =========================================================================== 00049 // member method definitions 00050 // =========================================================================== 00051 void 00052 RandHelper::insertRandOptions() { 00053 OptionsCont& oc = OptionsCont::getOptions(); 00054 // registers random number options 00055 oc.addOptionSubTopic("Random Number"); 00056 00057 oc.doRegister("random", new Option_Bool(false)); 00058 oc.addSynonyme("random", "abs-rand", true); 00059 oc.addDescription("random", "Random Number", "Initialises the random number generator with the current system time"); 00060 00061 oc.doRegister("seed", new Option_Integer(23423)); 00062 oc.addSynonyme("seed", "srand", true); 00063 oc.addDescription("seed", "Random Number", "Initialises the random number generator with the given value"); 00064 } 00065 00066 00067 void 00068 RandHelper::initRandGlobal() { 00069 OptionsCont& oc = OptionsCont::getOptions(); 00070 if (oc.getBool("random")) { 00071 myRandomNumberGenerator.seed(); 00072 } else { 00073 myRandomNumberGenerator.seed(oc.getInt("seed")); 00074 } 00075 } 00076 00077 00078 /****************************************************************************/ 00079