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00001 /* 00002 * Stellarium 00003 * Copyright (C) 2002 Fabien Chereau 00004 * 00005 * This program is free software; you can redistribute it and/or 00006 * modify it under the terms of the GNU General Public License 00007 * as published by the Free Software Foundation; either version 2 00008 * of the License, or (at your option) any later version. 00009 * 00010 * This program is distributed in the hope that it will be useful, 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 * GNU General Public License for more details. 00014 * 00015 * You should have received a copy of the GNU General Public License 00016 * along with this program; if not, write to the Free Software 00017 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00018 */ 00019 00020 #ifndef _STELOBSERVER_HPP_ 00021 #define _STELOBSERVER_HPP_ 00022 00023 #include "StelLocation.hpp" 00024 #include <QObject> 00025 #include <QString> 00026 #include "VecMath.hpp" 00027 00028 class Planet; 00029 class ArtificialPlanet; 00030 class StelObserver; 00031 00034 class StelObserver : public QObject 00035 { 00036 Q_OBJECT 00037 00038 public: 00040 StelObserver(const StelLocation& loc); 00041 ~StelObserver(); 00042 00044 virtual void update(double deltaTime) {;} 00045 00047 Vec3d getCenterVsop87Pos(void) const; 00049 double getDistanceFromCenter(void) const; 00050 Mat4d getRotAltAzToEquatorial(double jd) const; 00051 Mat4d getRotEquatorialToVsop87(void) const; 00052 00053 virtual const Planet* getHomePlanet(void) const {return planet;} 00054 00056 const StelLocation& getCurrentLocation() const {return currentLocation;} 00057 00060 virtual bool isObserverLifeOver() const {return false;} 00061 00063 virtual StelObserver* getNextObserver() const {return new StelObserver(currentLocation);} 00064 00065 protected: 00066 StelLocation currentLocation; 00067 const Planet* planet; 00068 }; 00069 00072 class SpaceShipObserver : public StelObserver 00073 { 00074 public: 00075 SpaceShipObserver(const StelLocation& startLoc, const StelLocation& target, double transitSeconds=1.f); 00076 ~SpaceShipObserver(); 00077 00079 virtual void update(double deltaTime); 00080 virtual const Planet* getHomePlanet(void) const {return (isObserverLifeOver() || artificialPlanet==NULL) ? planet : (Planet*)artificialPlanet;} 00081 virtual bool isObserverLifeOver() const {return timeToGo <= 0.;} 00082 virtual StelObserver* getNextObserver() const {return new StelObserver(moveTargetLocation);} 00083 00084 private: 00085 StelLocation moveStartLocation; 00086 StelLocation moveTargetLocation; 00087 ArtificialPlanet* artificialPlanet; 00088 double timeToGo; 00089 double transitSeconds; 00090 }; 00091 00092 #endif // _STELOBSERVER_HPP_ 00093