b24dbb3f8b
I tried to make sure accessor functions which return by reference act on const objects. also replaced some iterators with const_iterator and a few return/pass by reference that were missed the first time around.
289 lines
9.1 KiB
C++
289 lines
9.1 KiB
C++
// FGAIBase.hxx - abstract base class for AI objects
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// Written by David Culp, started Nov 2003, based on
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// David Luff's FGAIEntity class.
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// - davidculp2@comcast.net
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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#ifndef _FG_AIBASE_HXX
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#define _FG_AIBASE_HXX
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#include <string>
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#include <list>
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#include <simgear/constants.h>
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#include <simgear/math/point3d.hxx>
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#include <simgear/scene/model/placement.hxx>
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#include <simgear/misc/sg_path.hxx>
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#include <Main/fg_props.hxx>
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SG_USING_STD(string);
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SG_USING_STD(list);
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class FGAIManager;
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class FGAIFlightPlan;
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struct ParkPosition {
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ParkPosition(const ParkPosition& pp)
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: name(pp.name), offset(pp.offset), heading_deg(pp.heading_deg)
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{}
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ParkPosition(const string& n, const Point3D& off = Point3D(), double heading = 0)
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: name(n), offset(off), heading_deg(heading)
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{}
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string name;
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Point3D offset;
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double heading_deg;
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};
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typedef struct {
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string callsign;
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// can be aircraft, ship, storm, thermal, static or ballistic
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string m_type;
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string m_class;
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string path;
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string flightplan;
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FGAIFlightPlan *fp;
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double repeat; // in seconds
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double latitude; // used if no flightplan defined
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double longitude; // used if no flightplan defined
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double altitude; // used if no flightplan defined
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double speed; // used if no flightplan defined
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double heading; // used if no flightplan defined
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double roll; // used if no flightplan defined
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double azimuth; // used by ballistic objects
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double elevation; // used by ballistic objects
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double rudder; // used by ship objects
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double strength; // used by thermal and storm objects
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double diameter; // used by thermal and storm objects
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double height_msl; // used by thermal and storm objects
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double eda; // used by ballistic objects
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double life; // life span in seconds
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double buoyancy; // acceleration in ft per sec2
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double wind_from_east; // in feet per second
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double wind_from_north; // in feet per second
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double cd; // coefficient of drag
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bool wind; // if true, model reacts to parent wind
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double mass; // in slugs
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bool aero_stabilised; // if true, ballistic object aligns with trajectory
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list<string> solid_objects; // List of solid object names
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list<string> wire_objects; // List of wire object names
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list<string> catapult_objects; // List of catapult object names
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list<ParkPosition> ppositions; // List of positions on a carrier where an aircraft can start.
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Point3D flols_offset; // used by carrier objects, in meters
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double radius; // used by ship objects, in feet
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string name; // used by carrier objects
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string pennant_number; // used by carrier objects
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string acType; // used by aircraft objects
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string company; // used by aircraft objects
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string TACAN_channel_ID; // used by carrier objects
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double max_lat; // used by carrier objects
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double min_lat; // used by carrier objects
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double max_long; // used by carrier objects
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double min_long; // used by carrier objects
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} FGAIModelEntity;
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class FGAIBase {
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public:
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FGAIBase();
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virtual ~FGAIBase();
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virtual void update(double dt);
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inline const Point3D& GetPos() const { return(pos); }
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enum object_type { otNull = 0, otAircraft, otShip, otCarrier, otBallistic,
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otRocket, otStorm, otThermal, otStatic,
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MAX_OBJECTS }; // Needs to be last!!!
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virtual bool init();
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virtual void bind();
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virtual void unbind();
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void setPath( const char* model );
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void setSpeed( double speed_KTAS );
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void setAltitude( double altitude_ft );
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void setHeading( double heading );
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void setLatitude( double latitude );
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void setLongitude( double longitude );
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void setBank( double bank );
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void setRadius ( double radius );
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void setXoffset( double x_offset );
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void setYoffset( double y_offset );
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void setZoffset( double z_offset );
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int getID() const;
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void setDie( bool die );
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bool getDie();
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Point3D getCartPosAt(const Point3D& off) const;
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Point3D getGeocPosAt(const Point3D& off) const;
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protected:
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SGPropertyNode_ptr props;
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FGAIManager* manager;
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// these describe the model's actual state
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Point3D pos; // WGS84 lat & lon in degrees, elev above sea-level in meters
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double hdg; // True heading in degrees
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double roll; // degrees, left is negative
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double pitch; // degrees, nose-down is negative
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double speed; // knots true airspeed
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double altitude; // meters above sea level
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double vs; // vertical speed, feet per minute
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double turn_radius_ft; // turn radius ft at 15 kts rudder angle 15 degrees
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double ft_per_deg_lon;
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double ft_per_deg_lat;
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// these describe the model's desired state
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double tgt_heading; // target heading, degrees true
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double tgt_altitude; // target altitude, *feet* above sea level
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double tgt_speed; // target speed, KTAS
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double tgt_roll;
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double tgt_pitch;
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double tgt_yaw;
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double tgt_vs;
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// these describe radar information for the user
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bool in_range; // true if in range of the radar, otherwise false
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double bearing; // true bearing from user to this model
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double elevation; // elevation in degrees from user to this model
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double range; // range from user to this model, nm
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double rdot; // range rate, in knots
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double horiz_offset; // look left/right from user to me, deg
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double vert_offset; // look up/down from user to me, deg
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double x_shift; // value used by radar display instrument
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double y_shift; // value used by radar display instrument
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double rotation; // value used by radar display instrument
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string model_path; //Path to the 3D model
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ssgBranch * model; //The 3D model object
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SGModelPlacement aip;
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bool delete_me;
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bool invisible;
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bool no_roll;
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double life;
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FGAIFlightPlan *fp;
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void Transform();
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void CalculateMach();
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double UpdateRadar(FGAIManager* manager);
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string _type_str;
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object_type _otype;
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int index;
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static int _newAIModelID();
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private:
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const int _refID;
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public:
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object_type getType();
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bool isa( object_type otype );
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double _getVS_fps() const;
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void _setVS_fps( double _vs );
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double _getAltitude() const;
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void _setAltitude( double _alt );
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void _setLongitude( double longitude );
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void _setLatitude ( double latitude );
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double _getLongitude() const;
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double _getLatitude () const;
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double _getBearing() const;
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double _getElevation() const;
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double _getRdot() const;
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double _getH_offset() const;
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double _getV_offset() const;
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double _getX_shift() const;
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double _getY_shift() const;
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double _getRotation() const;
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double rho;
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double T; // temperature, degs farenheit
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double p; // pressure lbs/sq ft
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double a; // speed of sound at altitude (ft/s)
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double Mach; // Mach number
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static const double e;
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static const double lbs_to_slugs;
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inline double _getRange() { return range; };
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ssgBranch * load3DModel(const string& fg_root,
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const string &path,
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SGPropertyNode *prop_root,
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double sim_time_sec);
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static bool _isNight();
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};
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inline void FGAIBase::setPath( const char* model ) {
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model_path.append(model);
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}
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inline void FGAIBase::setSpeed( double speed_KTAS ) {
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speed = tgt_speed = speed_KTAS;
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}
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inline void FGAIBase::setRadius( double radius ) {
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turn_radius_ft = radius;
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}
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inline void FGAIBase::setHeading( double heading ) {
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hdg = tgt_heading = heading;
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}
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inline void FGAIBase::setAltitude( double altitude_ft ) {
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altitude = tgt_altitude = altitude_ft;
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pos.setelev(altitude * SG_FEET_TO_METER);
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}
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inline void FGAIBase::setBank( double bank ) {
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roll = tgt_roll = bank;
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no_roll = false;
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}
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inline void FGAIBase::setLongitude( double longitude ) {
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pos.setlon( longitude );
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}
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inline void FGAIBase::setLatitude ( double latitude ) {
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pos.setlat( latitude );
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}
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inline void FGAIBase::setDie( bool die ) { delete_me = die; }
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inline bool FGAIBase::getDie() { return delete_me; }
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inline FGAIBase::object_type FGAIBase::getType() { return _otype; }
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#endif // _FG_AIBASE_HXX
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