1 // globals.cxx -- 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 - curt@flightgear.org
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., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #include <simgear/sound/soundmgr_openal.hxx>
25 #include <simgear/structure/commands.hxx>
26 #include <simgear/misc/sg_path.hxx>
28 #include "globals.hxx"
29 #include "viewmgr.hxx"
31 #include "fg_props.hxx"
35 ////////////////////////////////////////////////////////////////////////
36 // Implementation of FGGlobals.
37 ////////////////////////////////////////////////////////////////////////
44 FGGlobals::FGGlobals() :
45 subsystem_mgr( new SGSubsystemMgr ),
46 event_mgr( new SGEventMgr ),
49 #if defined(FX) && defined(XMESA)
58 current_panel( NULL ),
66 props( new SGPropertyNode ),
67 initial_state( NULL ),
69 commands( new SGCommandMgr ),
73 channel_options_list( NULL ),
74 initial_waypoints( NULL ),
89 FGGlobals::~FGGlobals()
99 // make sure only to delete the initial waypoints list if it acually
101 if (initial_waypoints)
102 delete initial_waypoints;
106 // set the fg_root path
107 void FGGlobals::set_fg_root (const string &root) {
110 // append /data to root if it exists
111 SGPath tmp( fg_root );
112 tmp.append( "data" );
113 tmp.append( "version" );
114 if ( ulFileExists( tmp.c_str() ) ) {
119 void FGGlobals::set_fg_scenery (const string &scenery) {
121 if (scenery.empty()) {
123 s.append( "Scenery" );
127 string_list path_list = sgPathSplit( s.str() );
130 for (unsigned i = 0; i < path_list.size(); i++) {
132 ulDir *d = ulOpenDir( path_list[i].c_str() );
137 SGPath pt( path_list[i] ), po( path_list[i] );
138 pt.append("Terrain");
139 po.append("Objects");
141 ulDir *td = ulOpenDir( pt.c_str() );
142 ulDir *od = ulOpenDir( po.c_str() );
144 if (td == NULL && od == NULL)
145 fg_scenery.push_back( path_list[i] );
148 fg_scenery.push_back( pt.str() );
152 fg_scenery.push_back( po.str() );
161 FGGlobals::get_subsystem_mgr () const
163 return subsystem_mgr;
167 FGGlobals::get_subsystem (const char * name)
169 return subsystem_mgr->get_subsystem(name);
173 FGGlobals::add_subsystem (const char * name,
174 SGSubsystem * subsystem,
175 SGSubsystemMgr::GroupType type,
178 subsystem_mgr->add(name, subsystem, type, min_time_sec);
183 FGGlobals::get_event_mgr () const
189 // Save the current state as the initial state.
191 FGGlobals::saveInitialState ()
193 delete initial_state;
194 initial_state = new SGPropertyNode();
196 if (!copyProperties(props, initial_state))
197 SG_LOG(SG_GENERAL, SG_ALERT, "Error saving initial state");
201 // Restore the saved initial state, if any
203 FGGlobals::restoreInitialState ()
205 if ( initial_state == 0 ) {
206 SG_LOG(SG_GENERAL, SG_ALERT,
207 "No initial state available to restore!!!");
211 SGPropertyNode *currentPresets = new SGPropertyNode;
212 SGPropertyNode *targetNode = fgGetNode( "/sim/presets" );
214 // stash the /sim/presets tree
215 if ( !copyProperties(targetNode, currentPresets) ) {
216 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to save /sim/presets subtree" );
219 if ( copyProperties(initial_state, props) ) {
220 SG_LOG( SG_GENERAL, SG_INFO, "Initial state restored successfully" );
222 SG_LOG( SG_GENERAL, SG_INFO,
223 "Some errors restoring initial state (read-only props?)" );
226 // recover the /sim/presets tree
227 if ( !copyProperties(currentPresets, targetNode) ) {
228 SG_LOG( SG_GENERAL, SG_ALERT,
229 "Failed to restore /sim/presets subtree" );
232 delete currentPresets;
236 FGGlobals::get_current_view () const
238 return viewmgr->get_current_view();
241 // end of globals.cxx