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>
36 typedef std::vector<std::string> string_list;
37 typedef std::vector<SGPath> PathList;
39 // Forward declarations
41 // This file is included, directly or indirectly, almost everywhere in
42 // FlightGear, so if any of its dependencies changes, most of the sim
43 // has to be recompiled. Using these forward declarations helps us to
44 // avoid including a lot of header files (and thus, a lot of
45 // dependencies). Since Most of the methods simply set or return
46 // pointers, we don't need to know anything about the class details
70 namespace simgear { namespace pkg {
75 * Bucket for subsystem pointers representing the sim's state.
83 // properties, destroy last
84 SGPropertyNode_ptr props;
90 SGSubsystemMgr *subsystem_mgr;
91 SGEventMgr *event_mgr;
93 // Number of milliseconds elapsed since the start of the program.
96 // Root of FlightGear data tree
100 * locations to search for (non-scenery) data.
102 PathList additional_data_paths;
104 // Users home directory for data
107 // Roots of FlightGear scenery tree
108 string_list fg_scenery;
109 string_list secure_fg_scenery;
116 // Material properties library
117 SGSharedPtr<SGMaterialLib> matlib;
119 SGCommandMgr *commands;
121 // list of serial port-like configurations
122 string_list *channel_options_list;
124 // A list of initial waypoints that are read from the command line
125 // and or flight-plan file during initialization
126 string_list *initial_waypoints;
128 FGFontCache *fontcache;
131 FGTACANList *channellist;
133 /// roots of Aircraft trees
134 string_list fg_aircraft_dirs;
135 SGPath catalog_aircraft_dir;
137 bool haveUserSettings;
139 SGPropertyNode_ptr positionLon, positionLat, positionAlt;
140 SGPropertyNode_ptr viewLon, viewLat, viewAlt;
141 SGPropertyNode_ptr orientHeading, orientPitch, orientRoll;
144 * helper to initialise standard properties on a new property tree
146 void initProperties();
148 SGSharedPtr<FGSampleQueue> _chatter_queue;
150 void cleanupListeners();
152 typedef std::vector<SGPropertyChangeListener*> SGPropertyChangeListenerVec;
153 SGPropertyChangeListenerVec _listeners_to_cleanup;
155 SGSharedPtr<simgear::pkg::Root> _packageRoot;
159 virtual ~FGGlobals();
161 virtual FGRenderer *get_renderer () const;
162 void set_renderer(FGRenderer* render);
164 SGSubsystemMgr *get_subsystem_mgr () const;
166 SGSubsystem *get_subsystem (const char * name) const;
169 T* get_subsystem() const
171 return dynamic_cast<T*>(get_subsystem(T::subsystemName()));
175 void add_subsystem (const char * name,
176 SGSubsystem * subsystem,
177 SGSubsystemMgr::GroupType
178 type = SGSubsystemMgr::GENERAL,
179 double min_time_sec = 0);
182 T* add_new_subsystem (SGSubsystemMgr::GroupType
183 type = SGSubsystemMgr::GENERAL,
184 double min_time_sec = 0)
187 add_subsystem(T::subsystemName(), sub, type, min_time_sec);
191 SGEventMgr *get_event_mgr () const;
193 SGSoundMgr *get_soundmgr () const;
195 inline double get_sim_time_sec () const { return sim_time_sec; }
196 inline void inc_sim_time_sec (double dt) { sim_time_sec += dt; }
197 inline void set_sim_time_sec (double t) { sim_time_sec = t; }
199 inline const std::string &get_fg_root () const { return fg_root; }
200 void set_fg_root (const std::string &root);
203 * Get list of data locations. fg_root is always the final item in the
206 PathList get_data_paths() const;
209 * Get data locations which contain the file path suffix. Eg pass ing
210 * 'AI/Traffic' to get all data paths which define <path>/AI/Traffic subdir
212 PathList get_data_paths(const std::string& suffix) const;
214 void append_data_path(const SGPath& path);
217 * Given a path suffix (eg 'Textures' or 'AI/Traffic'), find the
218 * first data directory which defines it.
220 SGPath find_data_dir(const std::string& pathSuffix) const;
222 inline const std::string &get_fg_home () const { return fg_home; }
223 void set_fg_home (const std::string &home);
225 inline const string_list &get_fg_scenery () const { return fg_scenery; }
226 inline const string_list &get_secure_fg_scenery () const { return secure_fg_scenery; }
228 * Add a scenery directory
230 * secure = allow Nasal to read this directory; to avoid
231 * can-read-any-file security holes, do NOT set this on directories
232 * obtained from the property tree (e.g. /sim/terrasync/scenery-dir)
233 * or other Nasal-writable places
235 void append_fg_scenery (const std::string &scenery, bool secure = false);
237 void clear_fg_scenery();
240 * specify a path we'll prepend to the aircraft paths list if non-empty.
241 * This is used with packaged aircraft, to ensure their catalog (and hence,
242 * dependency packages) are found correctly.
244 void set_catalog_aircraft_path(const SGPath& path);
246 string_list get_aircraft_paths() const;
248 void append_aircraft_path(const std::string& path);
249 void append_aircraft_paths(const std::string& path);
252 * Given a path to an aircraft-related resource file, resolve it
253 * against the appropriate root. This means looking at the location
254 * defined by /sim/aircraft-dir, and then aircraft_path in turn,
255 * finishing with fg_root/Aircraft.
257 * if the path could not be resolved, an empty path is returned.
259 SGPath resolve_aircraft_path(const std::string& branch) const;
262 * Same as above, but test for non 'Aircraft/' branch paths, and
263 * always resolve them against fg_root.
265 SGPath resolve_maybe_aircraft_path(const std::string& branch) const;
268 * Search in the following directories:
270 * 1. Root directory of current aircraft (defined by /sim/aircraft-dir)
271 * 2. All aircraft directories if branch starts with Aircraft/
272 * 3. fg_data directory
274 SGPath resolve_resource_path(const std::string& branch) const;
276 inline const std::string &get_browser () const { return browser; }
277 void set_browser (const std::string &b) { browser = b; }
279 long int get_warp() const;
280 void set_warp( long int w );
282 long int get_warp_delta() const;
283 void set_warp_delta( long int d );
285 inline SGTime *get_time_params() const { return time_params; }
286 inline void set_time_params( SGTime *t ) { time_params = t; }
288 inline SGMaterialLib *get_matlib() const { return matlib; }
289 void set_matlib( SGMaterialLib *m );
291 inline SGPropertyNode *get_props () { return props; }
294 * @brief reset the property tree to new, empty tree. Ensure all
295 * subsystems are shutdown and unbound before call this.
297 void resetPropertyRoot();
299 inline FGLocale* get_locale () { return locale; }
301 inline SGCommandMgr *get_commands () { return commands; }
303 SGGeod get_aircraft_position() const;
305 SGVec3d get_aircraft_position_cart() const;
307 void get_aircraft_orientation(double& heading, double& pitch, double& roll);
309 SGGeod get_view_position() const;
311 SGVec3d get_view_position_cart() const;
313 inline string_list *get_channel_options_list () {
314 return channel_options_list;
316 inline void set_channel_options_list( string_list *l ) {
317 channel_options_list = l;
320 inline string_list *get_initial_waypoints () {
321 return initial_waypoints;
324 inline void set_initial_waypoints (string_list *list) {
325 initial_waypoints = list;
328 FGViewMgr *get_viewmgr() const;
329 FGViewer *get_current_view() const;
331 FGControls *get_controls() const;
333 FGScenery * get_scenery () const;
335 FGTileMgr * get_tile_mgr () const;
337 inline FGFontCache *get_fontcache() const { return fontcache; }
339 inline FGTACANList *get_channellist() const { return channellist; }
340 inline void set_channellist( FGTACANList *c ) { channellist = c; }
343 * Load user settings from autosave.xml
345 void loadUserSettings(const SGPath& datapath);
348 * Save user settings in autosave.xml
350 void saveUserSettings();
352 FGSampleQueue* get_chatter_queue() const;
353 void set_chatter_queue(FGSampleQueue* queue);
355 void addListenerToCleanup(SGPropertyChangeListener* l);
357 simgear::pkg::Root* packageRoot();
358 void setPackageRoot(const SGSharedPtr<simgear::pkg::Root>& p);
362 extern FGGlobals *globals;
365 #endif // _GLOBALS_HXX