1 // globals.hxx -- Global state that needs to be shared among the sim modules
3 // Written by Curtis Olson, started July 2000.
5 // Copyright (C) 2000 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.
27 #include <simgear/compiler.h>
28 #include <simgear/props/props.hxx>
29 #include <simgear/structure/subsystem_mgr.hxx>
30 #include <simgear/misc/sg_path.hxx>
35 typedef std::vector<std::string> string_list;
36 typedef std::vector<SGPath> PathList;
38 // Forward declarations
40 // This file is included, directly or indirectly, almost everywhere in
41 // FlightGear, so if any of its dependencies changes, most of the sim
42 // has to be recompiled. Using these forward declarations helps us to
43 // avoid including a lot of header files (and thus, a lot of
44 // dependencies). Since Most of the methods simply set or return
45 // pointers, we don't need to know anything about the class details
72 * Bucket for subsystem pointers representing the sim's state.
80 // properties, destroy last
81 SGPropertyNode_ptr props;
82 SGPropertyNode_ptr initial_state;
88 SGSubsystemMgr *subsystem_mgr;
89 SGEventMgr *event_mgr;
91 // Number of milliseconds elapsed since the start of the program.
94 // Root of FlightGear data tree
98 * locations to search for (non-scenery) data.
100 PathList additional_data_paths;
102 // Users home directory for data
105 // Roots of FlightGear scenery tree
106 string_list fg_scenery;
116 // Material properties library
117 SGMaterialLib *matlib;
119 // Global autopilot "route"
120 FGRouteMgr *route_mgr;
125 // control input state
126 FGControls *controls;
131 SGCommandMgr *commands;
133 // list of serial port-like configurations
134 string_list *channel_options_list;
136 // A list of initial waypoints that are read from the command line
137 // and or flight-plan file during initialization
138 string_list *initial_waypoints;
140 // FlightGear scenery manager
141 SGSharedPtr<FGScenery> _scenery;
144 SGSharedPtr<FGTileMgr> _tile_mgr;
146 FGFontCache *fontcache;
149 FGTACANList *channellist;
151 /// roots of Aircraft trees
152 string_list fg_aircraft_dirs;
154 bool haveUserSettings;
156 SGPropertyNode_ptr positionLon, positionLat, positionAlt;
157 SGPropertyNode_ptr viewLon, viewLat, viewAlt;
158 SGPropertyNode_ptr orientHeading, orientPitch, orientRoll;
161 * helper to initialise standard properties on a new property tree
163 void initProperties();
165 SGSharedPtr<FGSampleQueue> _chatter_queue;
169 virtual ~FGGlobals();
171 virtual FGRenderer *get_renderer () const;
172 void set_renderer(FGRenderer* render);
174 virtual SGSubsystemMgr *get_subsystem_mgr () const;
176 virtual SGSubsystem *get_subsystem (const char * name);
178 virtual void add_subsystem (const char * name,
179 SGSubsystem * subsystem,
180 SGSubsystemMgr::GroupType
181 type = SGSubsystemMgr::GENERAL,
182 double min_time_sec = 0);
184 virtual SGEventMgr *get_event_mgr () const;
186 virtual SGSoundMgr *get_soundmgr () const;
188 inline double get_sim_time_sec () const { return sim_time_sec; }
189 inline void inc_sim_time_sec (double dt) { sim_time_sec += dt; }
190 inline void set_sim_time_sec (double t) { sim_time_sec = t; }
192 inline const std::string &get_fg_root () const { return fg_root; }
193 void set_fg_root (const std::string &root);
196 * Get list of data locations. fg_root is always the final item in the
199 PathList get_data_paths() const;
202 * Get data locations which contain the file path suffix. Eg pass ing
203 * 'AI/Traffic' to get all data paths which define <path>/AI/Traffic subdir
205 PathList get_data_paths(const std::string& suffix) const;
207 void append_data_path(const SGPath& path);
210 * Given a path suffix (eg 'Textures' or 'AI/Traffic'), find the
211 * first data directory which defines it.
213 SGPath find_data_dir(const std::string& pathSuffix) const;
215 inline const std::string &get_fg_home () const { return fg_home; }
216 void set_fg_home (const std::string &home);
218 inline const string_list &get_fg_scenery () const { return fg_scenery; }
219 void append_fg_scenery (const std::string &scenery);
221 const string_list& get_aircraft_paths() const { return fg_aircraft_dirs; }
222 void append_aircraft_path(const std::string& path);
223 void append_aircraft_paths(const std::string& path);
226 * Given a path to an aircraft-related resource file, resolve it
227 * against the appropriate root. This means looking at the location
228 * defined by /sim/aircraft-dir, and then aircraft_path in turn,
229 * finishing with fg_root/Aircraft.
231 * if the path could not be resolved, an empty path is returned.
233 SGPath resolve_aircraft_path(const std::string& branch) const;
236 * Same as above, but test for non 'Aircraft/' branch paths, and
237 * always resolve them against fg_root.
239 SGPath resolve_maybe_aircraft_path(const std::string& branch) const;
242 * Search in the following directories:
244 * 1. Root directory of current aircraft (defined by /sim/aircraft-dir)
245 * 2. All aircraft directories if branch starts with Aircraft/
246 * 3. fg_data directory
248 SGPath resolve_resource_path(const std::string& branch) const;
250 inline const std::string &get_browser () const { return browser; }
251 void set_browser (const std::string &b) { browser = b; }
253 long int get_warp() const;
254 void set_warp( long int w );
256 long int get_warp_delta() const;
257 void set_warp_delta( long int d );
259 inline SGTime *get_time_params() const { return time_params; }
260 inline void set_time_params( SGTime *t ) { time_params = t; }
262 inline SGEphemeris *get_ephem() const { return ephem; }
263 inline void set_ephem( SGEphemeris *e ) { ephem = e; }
265 inline SGMaterialLib *get_matlib() const { return matlib; }
266 void set_matlib( SGMaterialLib *m );
268 inline FGATISMgr *get_ATIS_mgr() const { return ATIS_mgr; }
269 inline void set_ATIS_mgr( FGATISMgr *a ) {ATIS_mgr = a; }
271 inline FGControls *get_controls() const { return controls; }
272 inline void set_controls( FGControls *c ) { controls = c; }
274 inline FGViewMgr *get_viewmgr() const { return viewmgr; }
275 inline void set_viewmgr( FGViewMgr *vm ) { viewmgr = vm; }
276 FGViewer *get_current_view() const;
278 inline SGPropertyNode *get_props () { return props; }
281 * @brief reset the property tree to new, empty tree. Ensure all
282 * subsystems are shutdown and unbound before call this.
284 void resetPropertyRoot();
286 inline FGLocale* get_locale () { return locale; }
288 inline SGCommandMgr *get_commands () { return commands; }
290 SGGeod get_aircraft_position() const;
292 SGVec3d get_aircraft_position_cart() const;
294 void get_aircraft_orientation(double& heading, double& pitch, double& roll);
296 SGGeod get_view_position() const;
298 SGVec3d get_view_position_cart() const;
300 inline string_list *get_channel_options_list () {
301 return channel_options_list;
303 inline void set_channel_options_list( string_list *l ) {
304 channel_options_list = l;
307 inline string_list *get_initial_waypoints () {
308 return initial_waypoints;
311 inline void set_initial_waypoints (string_list *list) {
312 initial_waypoints = list;
315 FGScenery * get_scenery () const;
316 void set_scenery ( FGScenery *s );
318 FGTileMgr * get_tile_mgr () const;
319 void set_tile_mgr ( FGTileMgr *t );
321 inline FGFontCache *get_fontcache() const { return fontcache; }
323 inline FGTACANList *get_channellist() const { return channellist; }
324 inline void set_channellist( FGTACANList *c ) { channellist = c; }
327 * Save the current state as the initial state.
329 void saveInitialState ();
333 * Restore the saved initial state, if any.
335 void restoreInitialState ();
338 * Load user settings from autosave.xml
340 void loadUserSettings(const SGPath& datapath);
343 * Save user settings in autosave.xml
345 void saveUserSettings();
347 FGSampleQueue* get_chatter_queue() const;
348 void set_chatter_queue(FGSampleQueue* queue);
352 extern FGGlobals *globals;
355 #endif // _GLOBALS_HXX