SO3Engine: SO3Engine/SO3Utils/SO3UniversalClock.h Source File

00001 /*
00002 -----------------------------------------------------------------------------
00003 This source file is part of OpenSpace3D
00004 For the latest info, see http://www.openspace3d.com
00005 
00006 Copyright (c) 2010 I-maginer
00007 
00008 This program is free software; you can redistribute it and/or modify it under
00009 the terms of the GNU Lesser General Public License as published by the Free Software
00010 Foundation; either version 2 of the License, or (at your option) any later
00011 version.
00012 
00013 This program is distributed in the hope that it will be useful, but WITHOUT
00014 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
00015 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
00016 
00017 You should have received a copy of the GNU Lesser General Public License along with
00018 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
00019 Place - Suite 330, Boston, MA 02111-1307, USA, or go to
00020 http://www.gnu.org/copyleft/lesser.txt
00021 
00022 You may alternatively use this source under the terms of a specific version of
00023 the OpenSpace3D Unrestricted License provided you have obtained such a license from
00024 I-maginer.
00025 -----------------------------------------------------------------------------
00026 */
00027 
00028 /*
00029 Taken from Caelum (http://www.ogre3d.org/wiki/index.php/Caelum)
00030 */
00031 
00032 #ifndef __SO3_UNIVERSALCLOCK_H__
00033 #define __SO3_UNIVERSALCLOCK_H__
00034 
00035 #include "SO3Astronomy.h"
00036 
00037 namespace SO3
00038 {
00039 
00048 class _SO3_Export SUniversalClock
00049 {
00050 public:
00051   static const double SECONDS_PER_DAY; 
00052 protected:  
00053 private:
00054         double mJulianDayBase;    
00055   double mCurrentTime;      
00056   double mLastUpdateTime;   
00057   float mTimeScale;         
00058 
00059 public:
00063         SUniversalClock();
00064 
00069         void SetTimeScale(const float scale);
00070 
00075         float GetTimeScale() const;
00076 
00081         void Update(const float time);
00082 
00088   void SetJulianDay(double value);
00089 
00094   void SetGregorianDateTime(int year, int month, int day, int hour, int minute, double second);
00095 
00098   void GetGregorianDateTime(int& year, int& month, int& day, int& hour, int& minute, double& second);
00099 
00103   double GetJulianDay() const;
00104 
00109   double GetJulianDayDifference() const;
00110 
00115   double GetJulianSecond() const;
00116 
00121   double GetJulianSecondDifference() const;
00122 };
00123 
00124 }
00125 
00126 #endif