166 lines
4 KiB
C++
166 lines
4 KiB
C++
// globals.cxx -- Global state that needs to be shared among the sim modules
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//
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// Written by Curtis Olson, started July 2000.
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//
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// Copyright (C) 2000 Curtis L. Olson - curt@flightgear.org
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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// $Id$
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#include <simgear/misc/commands.hxx>
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#include <Environment/environment_mgr.hxx>
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#include "globals.hxx"
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#include "viewmgr.hxx"
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#include "fg_props.hxx"
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#include "fg_io.hxx"
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////////////////////////////////////////////////////////////////////////
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// Implementation of FGGlobals.
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////////////////////////////////////////////////////////////////////////
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// global global :-)
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FGGlobals *globals;
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// Constructor
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FGGlobals::FGGlobals() :
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subsystem_mgr( new FGSubsystemMgr ),
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sim_time_sec( 0.0 ),
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fg_root( "" ),
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fg_scenery( "" ),
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#if defined(FX) && defined(XMESA)
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fullscreen( true ),
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#endif
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warp( 0 ),
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warp_delta( 0 ),
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time_params( NULL ),
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ephem( NULL ),
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mag( NULL ),
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autopilot( NULL ),
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route( NULL ),
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soundmgr( NULL ),
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environment_mgr( NULL ),
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ATC_mgr( NULL ),
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ATC_display( NULL ),
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AI_mgr( NULL ),
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controls( NULL ),
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viewmgr( NULL ),
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props( new SGPropertyNode ),
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initial_state( NULL ),
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locale( NULL ),
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commands( new SGCommandMgr ),
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model_loader( NULL ),
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texture_loader( NULL ),
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acmodel( NULL ),
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model_mgr( NULL ),
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channel_options_list( NULL ),
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scenery( NULL ),
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tile_mgr( NULL ),
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io( new FGIO )
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{
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}
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// Destructor
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FGGlobals::~FGGlobals()
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{
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delete subsystem_mgr;
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delete initial_state;
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delete props;
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delete commands;
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delete io;
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}
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FGSubsystemMgr *
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FGGlobals::get_subsystem_mgr () const
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{
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return subsystem_mgr;
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}
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FGSubsystem *
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FGGlobals::get_subsystem (const char * name)
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{
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return subsystem_mgr->get_subsystem(name);
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}
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void
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FGGlobals::add_subsystem (const char * name,
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FGSubsystem * subsystem,
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FGSubsystemMgr::GroupType type,
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double min_time_sec)
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{
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subsystem_mgr->add(name, subsystem, type, min_time_sec);
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}
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// Save the current state as the initial state.
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void
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FGGlobals::saveInitialState ()
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{
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delete initial_state;
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initial_state = new SGPropertyNode();
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if (!copyProperties(props, initial_state))
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SG_LOG(SG_GENERAL, SG_ALERT, "Error saving initial state");
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}
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// Restore the saved initial state, if any
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void
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FGGlobals::restoreInitialState ()
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{
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if ( initial_state == 0 ) {
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SG_LOG(SG_GENERAL, SG_ALERT,
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"No initial state available to restore!!!");
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return;
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}
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SGPropertyNode *currentPresets = new SGPropertyNode;
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SGPropertyNode *targetNode = fgGetNode( "/sim/presets" );
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// stash the /sim/presets tree
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if ( !copyProperties(targetNode, currentPresets) ) {
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SG_LOG( SG_GENERAL, SG_ALERT, "Failed to save /sim/presets subtree" );
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}
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if ( copyProperties(initial_state, props) ) {
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SG_LOG( SG_GENERAL, SG_INFO, "Initial state restored successfully" );
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} else {
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SG_LOG( SG_GENERAL, SG_INFO,
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"Some errors restoring initial state (read-only props?)" );
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}
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// recover the /sim/presets tree
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if ( !copyProperties(currentPresets, targetNode) ) {
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SG_LOG( SG_GENERAL, SG_ALERT,
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"Failed to restore /sim/presets subtree" );
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}
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delete currentPresets;
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}
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FGViewer *
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FGGlobals::get_current_view () const
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{
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return viewmgr->get_current_view();
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}
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// end of globals.cxx
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