404 lines
11 KiB
C++
404 lines
11 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 - http://www.flightgear.org/~curt
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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 Foundation,
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// Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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// $Id$
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <simgear/structure/commands.hxx>
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#include <simgear/misc/sg_path.hxx>
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#include <simgear/misc/sg_dir.hxx>
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#include <simgear/timing/sg_time.hxx>
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#include <simgear/ephemeris/ephemeris.hxx>
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#include <simgear/magvar/magvar.hxx>
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#include <simgear/scene/material/matlib.hxx>
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#include <simgear/structure/subsystem_mgr.hxx>
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#include <simgear/structure/event_mgr.hxx>
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#include <simgear/sound/soundmgr_openal.hxx>
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#include <simgear/misc/ResourceManager.hxx>
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#include <Aircraft/controls.hxx>
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#include <Airports/runways.hxx>
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#include <ATCDCL/ATCmgr.hxx>
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#include <Autopilot/route_mgr.hxx>
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#include <Cockpit/panel.hxx>
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#include <GUI/new_gui.hxx>
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#include <Model/acmodel.hxx>
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#include <Model/modelmgr.hxx>
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#include <MultiPlayer/multiplaymgr.hxx>
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#include <Scenery/scenery.hxx>
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#include <Scenery/tilemgr.hxx>
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#include <Navaids/navlist.hxx>
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#include "globals.hxx"
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#include "renderer.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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class AircraftResourceProvider : public simgear::ResourceProvider
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{
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public:
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AircraftResourceProvider() :
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simgear::ResourceProvider(simgear::ResourceManager::PRIORITY_HIGH)
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{
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}
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virtual SGPath resolve(const std::string& aResource, SGPath&) const
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{
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string_list pieces(sgPathBranchSplit(aResource));
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if ((pieces.size() < 3) || (pieces.front() != "Aircraft")) {
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return SGPath(); // not an Aircraft path
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}
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// test against the aircraft-dir property
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const char* aircraftDir = fgGetString("/sim/aircraft-dir");
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string_list aircraftDirPieces(sgPathBranchSplit(aircraftDir));
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if (aircraftDirPieces.empty() || (aircraftDirPieces.back() != pieces[1])) {
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return SGPath(); // current aircraft-dir does not match resource aircraft
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}
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SGPath r(aircraftDir);
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for (unsigned int i=2; i<pieces.size(); ++i) {
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r.append(pieces[i]);
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}
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if (r.exists()) {
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SG_LOG(SG_IO, SG_INFO, "found path:" << aResource << " via /sim/aircraft-dir: " << r.str());
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return r;
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}
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// try each aircaft dir in turn
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std::string res(aResource, 9); // resource path with 'Aircraft/' removed
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const string_list& dirs(globals->get_aircraft_paths());
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string_list::const_iterator it = dirs.begin();
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for (; it != dirs.end(); ++it) {
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SGPath p(*it, res);
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if (p.exists()) {
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SG_LOG(SG_IO, SG_INFO, "found path:" << aResource << " in aircraft dir: " << r.str());
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return p;
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}
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} // of aircraft path iteration
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return SGPath(); // not found
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}
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};
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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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props( new SGPropertyNode ),
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initial_state( NULL ),
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locale( NULL ),
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renderer( new FGRenderer ),
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subsystem_mgr( new SGSubsystemMgr ),
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event_mgr( new SGEventMgr ),
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soundmgr( new SGSoundMgr ),
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sim_time_sec( 0.0 ),
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fg_root( "" ),
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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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matlib( NULL ),
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route_mgr( NULL ),
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current_panel( NULL ),
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ATC_mgr( NULL ),
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controls( NULL ),
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viewmgr( NULL ),
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commands( SGCommandMgr::instance() ),
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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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initial_waypoints( NULL ),
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scenery( NULL ),
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tile_mgr( NULL ),
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fontcache ( new FGFontCache ),
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navlist( NULL ),
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loclist( NULL ),
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gslist( NULL ),
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dmelist( NULL ),
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tacanlist( NULL ),
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carrierlist( NULL ),
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channellist( NULL )
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{
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simgear::ResourceManager::instance()->addProvider(new AircraftResourceProvider());
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}
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// Destructor
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FGGlobals::~FGGlobals()
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{
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delete renderer;
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renderer = NULL;
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// The AIModels manager performs a number of actions upon
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// Shutdown that implicitly assume that other subsystems
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// are still operational (Due to the dynamic allocation and
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// deallocation of AIModel objects. To ensure we can safely
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// shut down all subsystems, make sure we take down the
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// AIModels system first.
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SGSubsystem* ai = subsystem_mgr->remove("ai_model");
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if (ai) {
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ai->unbind();
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delete ai;
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}
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subsystem_mgr->unbind();
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delete subsystem_mgr;
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delete time_params;
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delete mag;
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delete matlib;
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delete route_mgr;
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delete current_panel;
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delete ATC_mgr;
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delete controls;
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delete channel_options_list;
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delete initial_waypoints;
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delete scenery;
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delete fontcache;
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delete navlist;
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delete loclist;
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delete gslist;
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delete dmelist;
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delete tacanlist;
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delete carrierlist;
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delete channellist;
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soundmgr->unbind();
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delete soundmgr;
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}
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// set the fg_root path
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void FGGlobals::set_fg_root (const string &root) {
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fg_root = root;
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// append /data to root if it exists
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SGPath tmp( fg_root );
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tmp.append( "data" );
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tmp.append( "version" );
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if ( ulFileExists( tmp.c_str() ) ) {
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fgGetNode("BAD_FG_ROOT", true)->setStringValue(fg_root);
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fg_root += "/data";
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fgGetNode("GOOD_FG_ROOT", true)->setStringValue(fg_root);
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SG_LOG(SG_GENERAL, SG_ALERT, "***\n***\n*** Warning: changing bad FG_ROOT/--fg-root to '"
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<< fg_root << "'\n***\n***");
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}
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// remove /sim/fg-root before writing to prevent hijacking
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SGPropertyNode *n = fgGetNode("/sim", true);
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n->removeChild("fg-root", 0, false);
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n = n->getChild("fg-root", 0, true);
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n->setStringValue(fg_root.c_str());
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n->setAttribute(SGPropertyNode::WRITE, false);
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simgear::ResourceManager::instance()->addBasePath(fg_root,
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simgear::ResourceManager::PRIORITY_DEFAULT);
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}
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void FGGlobals::set_fg_scenery (const string &scenery)
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{
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SGPath s;
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if (scenery.empty()) {
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s.set( fg_root );
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s.append( "Scenery" );
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} else
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s.set( scenery );
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string_list path_list = sgPathSplit( s.str() );
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fg_scenery.clear();
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for (unsigned i = 0; i < path_list.size(); i++) {
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SGPath path(path_list[i]);
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if (!path.exists()) {
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SG_LOG(SG_GENERAL, SG_WARN, "scenery path not found:" << path.str());
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continue;
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}
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simgear::Dir dir(path);
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SGPath terrainDir(dir.file("Terrain"));
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SGPath objectsDir(dir.file("Objects"));
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// this code used to add *either* the base dir, OR add the
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// Terrain and Objects subdirs, but the conditional logic was commented
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// out, such that all three dirs are added. Unfortunately there's
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// no information as to why the change was made.
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fg_scenery.push_back(path.str());
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if (terrainDir.exists()) {
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fg_scenery.push_back(terrainDir.str());
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}
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if (objectsDir.exists()) {
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fg_scenery.push_back(objectsDir.str());
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}
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// insert a marker for FGTileEntry::load(), so that
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// FG_SCENERY=A:B becomes list ["A/Terrain", "A/Objects", "",
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// "B/Terrain", "B/Objects", ""]
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fg_scenery.push_back("");
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} // of path list iteration
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}
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void FGGlobals::append_aircraft_path(const std::string& path)
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{
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SGPath dirPath(path);
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if (!dirPath.exists()) {
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SG_LOG(SG_GENERAL, SG_WARN, "aircraft path not found:" << path);
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return;
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}
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unsigned int index = fg_aircraft_dirs.size();
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fg_aircraft_dirs.push_back(path);
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// make aircraft dirs available to Nasal
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SGPropertyNode* sim = fgGetNode("/sim", true);
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sim->removeChild("fg-aircraft", index, false);
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SGPropertyNode* n = sim->getChild("fg-aircraft", index, true);
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n->setStringValue(path);
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n->setAttribute(SGPropertyNode::WRITE, false);
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}
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void FGGlobals::append_aircraft_paths(const std::string& path)
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{
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string_list paths = sgPathSplit(path);
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for (unsigned int p = 0; p<paths.size(); ++p) {
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append_aircraft_path(paths[p]);
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}
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}
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SGPath FGGlobals::resolve_aircraft_path(const std::string& branch) const
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{
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return simgear::ResourceManager::instance()->findPath(branch);
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}
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SGPath FGGlobals::resolve_maybe_aircraft_path(const std::string& branch) const
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{
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return simgear::ResourceManager::instance()->findPath(branch);
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}
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FGRenderer *
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FGGlobals::get_renderer () const
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{
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return renderer;
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}
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SGSubsystemMgr *
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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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SGSubsystem *
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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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SGSubsystem * subsystem,
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SGSubsystemMgr::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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SGSoundMgr *
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FGGlobals::get_soundmgr () const
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{
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return soundmgr;
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}
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SGEventMgr *
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FGGlobals::get_event_mgr () const
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{
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return event_mgr;
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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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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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// delete various properties from the initial state, since we want to
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// preserve their values even if doing a restore
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SGPropertyNode* sim = initial_state->getChild("sim");
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sim->removeChild("presets");
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SGPropertyNode* simStartup = sim->getChild("startup");
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simStartup->removeChild("xsize");
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simStartup->removeChild("ysize");
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SGPropertyNode* cameraGroupNode = sim->getNode("rendering/camera-group");
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if (cameraGroupNode) {
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cameraGroupNode->removeChild("camera");
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cameraGroupNode->removeChild("gui");
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}
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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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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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}
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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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