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flightgear/src/AIModel/AIManager.hxx

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// AIManager.hxx - David Culp - based on:
// AIMgr.hxx - definition of FGAIMgr
// - a global management class for FlightGear generated AI traffic
//
// Written by David Luff, started March 2002.
//
// Copyright (C) 2002 David C Luff - david.luff@nottingham.ac.uk
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
2006-02-21 01:16:04 +00:00
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#ifndef _FG_AIMANAGER_HXX
#define _FG_AIMANAGER_HXX
#include <list>
#include <simgear/structure/subsystem_mgr.hxx>
#include <simgear/structure/SGSharedPtr.hxx>
#include <Main/fg_props.hxx>
#include <AIModel/AIBase.hxx>
#include <AIModel/AIFlightPlan.hxx>
#include <Traffic/SchedFlight.hxx>
#include <Traffic/Schedule.hxx>
using std::list;
class FGAIThermal;
class FGAIManager : public SGSubsystem
{
public:
// A list of pointers to AI objects
typedef list <osg::ref_ptr<FGAIBase> > ai_list_type;
typedef ai_list_type::iterator ai_list_iterator;
typedef ai_list_type::const_iterator ai_list_const_iterator;
ai_list_type ai_list;
inline const ai_list_type& get_ai_list() const {
SG_LOG(SG_GENERAL, SG_DEBUG, "AI Manager: AI model return list size " << ai_list.size());
return ai_list;
}
FGAIManager();
~FGAIManager();
void init();
void postinit();
void reinit();
void bind();
void unbind();
void update(double dt);
void attach(FGAIBase *model);
void destroyObject( int ID );
const FGAIBase *calcCollision(double alt, double lat, double lon, double fuse_range);
David Culp: Here's a new batch of AI code which includes a working radar instrument. I put the radar calculations into the existing AIAircraft class. It was easier that way, and it can always be migrated out later if we have to. Every tenth sim cycle the AIManager makes a copy of the current user state information. When the AIAircraft updates it uses this information to calculate the radar numbers. It calculates: 1) bearing from user to target 2) range to target in nautical miles 3) "horizontal offset" to target. This is the angle from the nose to the target, in degrees, from -180 to 180. This will be useful later for a HUD. 4) elevation, in degrees (vertical angle from user's position to target position) 5) vertical offset, in degrees (this is elevation corrected for user's pitch) 6) rdot (range rate in knots, note: not working yet, so I commented it out) and three items used by the radar instrument to place the "blip" 7) y_shift, in nautical miles 8) x_shift, in nautical miles 9) rotation, in degrees The radar instrument uses the above three items, and applies a scale factor to the x-shift and y-shift in order to match the instrument's scale. Changing the display scale can be done entirely in the XML code for the instrument. Right now it's set up only to display a 40 mile scale. The radar is an AWACS view, which is not very realistic, but it is useful and demonstrates the technology. With just a little more work I can get a HUD marker. All I need to do there is make a bank angle adjustment to the current values.
2004-02-27 10:20:17 +00:00
inline double get_user_latitude() const { return user_latitude; }
inline double get_user_longitude() const { return user_longitude; }
inline double get_user_altitude() const { return user_altitude; }
inline double get_user_heading() const { return user_heading; }
inline double get_user_pitch() const { return user_pitch; }
inline double get_user_yaw() const { return user_yaw; }
inline double get_user_speed() const {return user_speed; }
inline double get_wind_from_east() const {return wind_from_east; }
inline double get_wind_from_north() const {return wind_from_north; }
2008-02-15 11:06:27 +00:00
inline double get_user_roll() const { return user_roll; }
int getNumAiObjects(void) const;
Mathias Frhlich: I have introduced the posibility to start directly on the carrier. With that patch you will have a --carrrier=id argument where id can either be the pennant number configured in the nimitz scenario or the carriers name also configured in the carriers scenario. Additionaly you can use --parkpos=id to select different positions on the carrier. They are also configured in the scenario file. That includes the switch of the whole FGInterface class to make use of the groundcache. That means that an aircraft no longer uses the current elevation value from the scenery class. It rather has its own local cache of the aircrafts environment which is setup in the common_init method of FGInterface and updated either manually by calling FGInterface::get_groundlevel_m(lat, lon, alt_m); or implicitly by calling the above method in the FGInterface::_updateGeo*Position(lat, lon, alt); methods. A call get_groundlevel_m rebuilds the groundcache if the request is outside the range of the cache. Note that for the real usage of the groundcache including the correct information about the movement of objects and the velocity information, you still need to set up the groundcache in the usual way like YASim and JSBSim currently does. If you use the native interface, you will get only static objects correctly. But for FDM's only using one single ground level for a whole step this is IMO sufficient. The AIManager gets a way to return the location of a object which is placed wrt an AI Object. At the moment it only honours AICarriers for that. That method is a static one, which loads the scenario file for that reason and throws it away afterwards. This looked like the aprioriate way, because the AIManager is initialized much later in flightgears bootstrap, and I did not find an easy way to reorder that for my needs. Since this additional load is very small and does only happen if such a relative location is required, I think that this is ok. Note that moving on the carrier will only work correctly for JSBSim and YASim, but you should now be able to start and move on every not itself moving object with any FDM.
2005-07-03 09:39:14 +00:00
void processScenario( const string &filename );
static SGPropertyNode_ptr loadScenarioFile(const std::string& filename);
Mathias Frhlich: I have introduced the posibility to start directly on the carrier. With that patch you will have a --carrrier=id argument where id can either be the pennant number configured in the nimitz scenario or the carriers name also configured in the carriers scenario. Additionaly you can use --parkpos=id to select different positions on the carrier. They are also configured in the scenario file. That includes the switch of the whole FGInterface class to make use of the groundcache. That means that an aircraft no longer uses the current elevation value from the scenery class. It rather has its own local cache of the aircrafts environment which is setup in the common_init method of FGInterface and updated either manually by calling FGInterface::get_groundlevel_m(lat, lon, alt_m); or implicitly by calling the above method in the FGInterface::_updateGeo*Position(lat, lon, alt); methods. A call get_groundlevel_m rebuilds the groundcache if the request is outside the range of the cache. Note that for the real usage of the groundcache including the correct information about the movement of objects and the velocity information, you still need to set up the groundcache in the usual way like YASim and JSBSim currently does. If you use the native interface, you will get only static objects correctly. But for FDM's only using one single ground level for a whole step this is IMO sufficient. The AIManager gets a way to return the location of a object which is placed wrt an AI Object. At the moment it only honours AICarriers for that. That method is a static one, which loads the scenario file for that reason and throws it away afterwards. This looked like the aprioriate way, because the AIManager is initialized much later in flightgears bootstrap, and I did not find an easy way to reorder that for my needs. Since this additional load is very small and does only happen if such a relative location is required, I think that this is ok. Note that moving on the carrier will only work correctly for JSBSim and YASim, but you should now be able to start and move on every not itself moving object with any FDM.
2005-07-03 09:39:14 +00:00
static bool getStartPosition(const string& id, const string& pid,
SGGeod& geodPos, double& hdng, SGVec3d& uvw);
Mathias Frhlich: I have introduced the posibility to start directly on the carrier. With that patch you will have a --carrrier=id argument where id can either be the pennant number configured in the nimitz scenario or the carriers name also configured in the carriers scenario. Additionaly you can use --parkpos=id to select different positions on the carrier. They are also configured in the scenario file. That includes the switch of the whole FGInterface class to make use of the groundcache. That means that an aircraft no longer uses the current elevation value from the scenery class. It rather has its own local cache of the aircrafts environment which is setup in the common_init method of FGInterface and updated either manually by calling FGInterface::get_groundlevel_m(lat, lon, alt_m); or implicitly by calling the above method in the FGInterface::_updateGeo*Position(lat, lon, alt); methods. A call get_groundlevel_m rebuilds the groundcache if the request is outside the range of the cache. Note that for the real usage of the groundcache including the correct information about the movement of objects and the velocity information, you still need to set up the groundcache in the usual way like YASim and JSBSim currently does. If you use the native interface, you will get only static objects correctly. But for FDM's only using one single ground level for a whole step this is IMO sufficient. The AIManager gets a way to return the location of a object which is placed wrt an AI Object. At the moment it only honours AICarriers for that. That method is a static one, which loads the scenario file for that reason and throws it away afterwards. This looked like the aprioriate way, because the AIManager is initialized much later in flightgears bootstrap, and I did not find an easy way to reorder that for my needs. Since this additional load is very small and does only happen if such a relative location is required, I think that this is ok. Note that moving on the carrier will only work correctly for JSBSim and YASim, but you should now be able to start and move on every not itself moving object with any FDM.
2005-07-03 09:39:14 +00:00
private:
bool enabled;
int mNumAiTypeModels[FGAIBase::MAX_OBJECTS];
int mNumAiModels;
double calcRange(double lat, double lon, double lat2, double lon2)const;
SGPropertyNode_ptr root;
SGPropertyNode_ptr thermal_lift_node;
SGPropertyNode_ptr user_latitude_node;
SGPropertyNode_ptr user_longitude_node;
SGPropertyNode_ptr user_altitude_node;
SGPropertyNode_ptr user_heading_node;
SGPropertyNode_ptr user_pitch_node;
SGPropertyNode_ptr user_yaw_node;
2008-02-15 11:06:27 +00:00
SGPropertyNode_ptr user_roll_node;
SGPropertyNode_ptr user_speed_node;
SGPropertyNode_ptr wind_from_east_node;
SGPropertyNode_ptr wind_from_north_node;
David Culp: Here's a new batch of AI code which includes a working radar instrument. I put the radar calculations into the existing AIAircraft class. It was easier that way, and it can always be migrated out later if we have to. Every tenth sim cycle the AIManager makes a copy of the current user state information. When the AIAircraft updates it uses this information to calculate the radar numbers. It calculates: 1) bearing from user to target 2) range to target in nautical miles 3) "horizontal offset" to target. This is the angle from the nose to the target, in degrees, from -180 to 180. This will be useful later for a HUD. 4) elevation, in degrees (vertical angle from user's position to target position) 5) vertical offset, in degrees (this is elevation corrected for user's pitch) 6) rdot (range rate in knots, note: not working yet, so I commented it out) and three items used by the radar instrument to place the "blip" 7) y_shift, in nautical miles 8) x_shift, in nautical miles 9) rotation, in degrees The radar instrument uses the above three items, and applies a scale factor to the x-shift and y-shift in order to match the instrument's scale. Changing the display scale can be done entirely in the XML code for the instrument. Right now it's set up only to display a 40 mile scale. The radar is an AWACS view, which is not very realistic, but it is useful and demonstrates the technology. With just a little more work I can get a HUD marker. All I need to do there is make a bank angle adjustment to the current values.
2004-02-27 10:20:17 +00:00
double user_latitude;
double user_longitude;
double user_altitude;
double user_heading;
double user_pitch;
double user_yaw;
2008-02-15 11:06:27 +00:00
double user_roll;
David Culp: Here's a new batch of AI code which includes a working radar instrument. I put the radar calculations into the existing AIAircraft class. It was easier that way, and it can always be migrated out later if we have to. Every tenth sim cycle the AIManager makes a copy of the current user state information. When the AIAircraft updates it uses this information to calculate the radar numbers. It calculates: 1) bearing from user to target 2) range to target in nautical miles 3) "horizontal offset" to target. This is the angle from the nose to the target, in degrees, from -180 to 180. This will be useful later for a HUD. 4) elevation, in degrees (vertical angle from user's position to target position) 5) vertical offset, in degrees (this is elevation corrected for user's pitch) 6) rdot (range rate in knots, note: not working yet, so I commented it out) and three items used by the radar instrument to place the "blip" 7) y_shift, in nautical miles 8) x_shift, in nautical miles 9) rotation, in degrees The radar instrument uses the above three items, and applies a scale factor to the x-shift and y-shift in order to match the instrument's scale. Changing the display scale can be done entirely in the XML code for the instrument. Right now it's set up only to display a 40 mile scale. The radar is an AWACS view, which is not very realistic, but it is useful and demonstrates the technology. With just a little more work I can get a HUD marker. All I need to do there is make a bank angle adjustment to the current values.
2004-02-27 10:20:17 +00:00
double user_speed;
double wind_from_east;
double wind_from_north;
double _dt;
David Culp: Here's a new batch of AI code which includes a working radar instrument. I put the radar calculations into the existing AIAircraft class. It was easier that way, and it can always be migrated out later if we have to. Every tenth sim cycle the AIManager makes a copy of the current user state information. When the AIAircraft updates it uses this information to calculate the radar numbers. It calculates: 1) bearing from user to target 2) range to target in nautical miles 3) "horizontal offset" to target. This is the angle from the nose to the target, in degrees, from -180 to 180. This will be useful later for a HUD. 4) elevation, in degrees (vertical angle from user's position to target position) 5) vertical offset, in degrees (this is elevation corrected for user's pitch) 6) rdot (range rate in knots, note: not working yet, so I commented it out) and three items used by the radar instrument to place the "blip" 7) y_shift, in nautical miles 8) x_shift, in nautical miles 9) rotation, in degrees The radar instrument uses the above three items, and applies a scale factor to the x-shift and y-shift in order to match the instrument's scale. Changing the display scale can be done entirely in the XML code for the instrument. Right now it's set up only to display a 40 mile scale. The radar is an AWACS view, which is not very realistic, but it is useful and demonstrates the technology. With just a little more work I can get a HUD marker. All I need to do there is make a bank angle adjustment to the current values.
2004-02-27 10:20:17 +00:00
void fetchUserState( void );
// used by thermals
double range_nearest;
double strength;
void processThermal( FGAIThermal* thermal );
};
#endif // _FG_AIMANAGER_HXX