1 // route_mgr.hxx - manage a route (i.e. a collection of waypoints)
3 // Written by Curtis Olson, started January 2004.
5 // Copyright (C) 2004 Curtis L. Olson - http://www.flightgear.org/~curt
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
24 #ifndef _ROUTE_MGR_HXX
25 #define _ROUTE_MGR_HXX 1
27 #include <simgear/props/props.hxx>
28 #include <simgear/route/waypoint.hxx>
29 #include <simgear/structure/subsystem_mgr.hxx>
36 * Top level route manager class
40 class FGRouteMgr : public SGSubsystem
46 time_t _touchdownTime;
47 bool _autoSequence; // true if we are doing internal sequencing
48 // false if other code (FMS/GPS) is managing sequencing
51 SGPropertyNode_ptr lon;
52 SGPropertyNode_ptr lat;
53 SGPropertyNode_ptr alt;
54 SGPropertyNode_ptr magvar;
58 SGPropertyNode_ptr _apTargetAltitudeFt;
59 SGPropertyNode_ptr _apAltitudeLock;
60 SGPropertyNode_ptr _apTrueHeading;
62 SGPropertyNode_ptr departure; ///< departure airport information
63 SGPropertyNode_ptr destination; ///< destination airport information
64 SGPropertyNode_ptr alternate; ///< alternate airport information
65 SGPropertyNode_ptr cruise; ///< cruise information
67 SGPropertyNode_ptr totalDistance;
68 SGPropertyNode_ptr ete;
69 SGPropertyNode_ptr elapsedFlightTime;
71 SGPropertyNode_ptr active;
72 SGPropertyNode_ptr airborne;
73 SGPropertyNode_ptr currentWp;
75 SGPropertyNode_ptr wp0;
76 SGPropertyNode_ptr wp1;
77 SGPropertyNode_ptr wpn;
80 SGPropertyNode_ptr _pathNode;
82 void setETAPropertyFromDistance(SGPropertyNode_ptr aProp, double aDistance);
84 class InputListener : public SGPropertyChangeListener {
86 InputListener(FGRouteMgr *m) : mgr(m) {}
87 virtual void valueChanged (SGPropertyNode * prop);
92 SGPropertyNode_ptr input;
93 SGPropertyNode_ptr weightOnWheels;
95 InputListener *listener;
96 SGPropertyNode_ptr mirror;
100 * Create a SGWayPoint from a string in the following format:
101 * - simple identifier
102 * - decimal-lon,decimal-lat
103 * - airport-id/runway-id
104 * - navaid/radial-deg/offset-nm
106 SGWayPoint* make_waypoint(const string& target);
109 void update_mirror();
112 void currentWaypointChanged();
115 * Helper to update the target_altitude_ft and altitude_set flag when wp0
118 void updateTargetAltitude();
121 * Parse a route/wp node (from a saved, property-lsit formatted route)
123 void parseRouteWaypoint(SGPropertyNode* aWP);
133 void update (double dt);
137 void new_waypoint( const string& tgt_alt, int n = -1 );
138 void add_waypoint( const SGWayPoint& wp, int n = -1 );
139 SGWayPoint pop_waypoint( int i = 0 );
141 SGWayPoint get_waypoint( int i ) const;
144 bool isRouteActive() const;
146 int currentWaypoint() const;
149 * Find a waypoint in the route, by position, and return its index, or
150 * -1 if no matching waypoint was found in the route.
152 int findWaypoint(const SGGeod& aPos) const;
155 * Activate a built route. This checks for various mandatory pieces of
156 * data, such as departure and destination airports, and creates waypoints
157 * for them on the route structure.
159 * returns true if the route was activated successfully, or false if the
160 * route could not be activated for some reason
165 * Step to the next waypoint on the active route
172 void jumpToIndex(int index);
179 #endif // _ROUTE_MGR_HXX