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 - 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., 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 renderer( new FGRenderer ),
46 subsystem_mgr( new SGSubsystemMgr ),
47 event_mgr( new SGEventMgr ),
50 #if defined(FX) && defined(XMESA)
59 current_panel( NULL ),
67 props( new SGPropertyNode ),
68 initial_state( NULL ),
70 commands( new SGCommandMgr ),
74 channel_options_list( NULL ),
75 initial_waypoints( NULL ),
90 FGGlobals::~FGGlobals()
101 // make sure only to delete the initial waypoints list if it acually
103 if (initial_waypoints)
104 delete initial_waypoints;
108 // set the fg_root path
109 void FGGlobals::set_fg_root (const string &root) {
112 // append /data to root if it exists
113 SGPath tmp( fg_root );
114 tmp.append( "data" );
115 tmp.append( "version" );
116 if ( ulFileExists( tmp.c_str() ) ) {
121 void FGGlobals::set_fg_scenery (const string &scenery) {
123 if (scenery.empty()) {
125 s.append( "Scenery" );
129 string_list path_list = sgPathSplit( s.str() );
132 for (unsigned i = 0; i < path_list.size(); i++) {
134 ulDir *d = ulOpenDir( path_list[i].c_str() );
139 SGPath pt( path_list[i] ), po( path_list[i] );
140 pt.append("Terrain");
141 po.append("Objects");
143 ulDir *td = ulOpenDir( pt.c_str() );
144 ulDir *od = ulOpenDir( po.c_str() );
146 if (td == NULL && od == NULL)
147 fg_scenery.push_back( path_list[i] );
150 fg_scenery.push_back( pt.str() );
154 fg_scenery.push_back( po.str() );
163 FGGlobals::get_renderer () const
169 FGGlobals::get_subsystem_mgr () const
171 return subsystem_mgr;
175 FGGlobals::get_subsystem (const char * name)
177 return subsystem_mgr->get_subsystem(name);
181 FGGlobals::add_subsystem (const char * name,
182 SGSubsystem * subsystem,
183 SGSubsystemMgr::GroupType type,
186 subsystem_mgr->add(name, subsystem, type, min_time_sec);
191 FGGlobals::get_event_mgr () const
197 // Save the current state as the initial state.
199 FGGlobals::saveInitialState ()
201 delete initial_state;
202 initial_state = new SGPropertyNode();
204 if (!copyProperties(props, initial_state))
205 SG_LOG(SG_GENERAL, SG_ALERT, "Error saving initial state");
209 // Restore the saved initial state, if any
211 FGGlobals::restoreInitialState ()
213 if ( initial_state == 0 ) {
214 SG_LOG(SG_GENERAL, SG_ALERT,
215 "No initial state available to restore!!!");
219 SGPropertyNode *currentPresets = new SGPropertyNode;
220 SGPropertyNode *targetNode = fgGetNode( "/sim/presets" );
222 // stash the /sim/presets tree
223 if ( !copyProperties(targetNode, currentPresets) ) {
224 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to save /sim/presets subtree" );
227 if ( copyProperties(initial_state, props) ) {
228 SG_LOG( SG_GENERAL, SG_INFO, "Initial state restored successfully" );
230 SG_LOG( SG_GENERAL, SG_INFO,
231 "Some errors restoring initial state (read-only props?)" );
234 // recover the /sim/presets tree
235 if ( !copyProperties(currentPresets, targetNode) ) {
236 SG_LOG( SG_GENERAL, SG_ALERT,
237 "Failed to restore /sim/presets subtree" );
240 delete currentPresets;
244 FGGlobals::get_current_view () const
246 return viewmgr->get_current_view();
249 // end of globals.cxx