ab495d1370
Add helper to look for an aircraft branch path in multiple candidate locations. Update the main subsystems to use the helper, and hence load from any aircraft dir.
144 lines
4 KiB
C++
144 lines
4 KiB
C++
// fg_fx.cxx -- Sound effect management class implementation
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//
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// Started by David Megginson, October 2001
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// (Reuses some code from main.cxx, probably by Curtis Olson)
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//
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// Copyright (C) 2001 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
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// Foundation, 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 _MSC_VER
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#pragma warning (disable: 4786)
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#endif
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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 "fg_fx.hxx"
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#include <Main/fg_props.hxx>
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#include <simgear/props/props.hxx>
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#include <simgear/misc/sg_path.hxx>
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#include <simgear/sound/soundmgr_openal.hxx>
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#include <simgear/sound/xmlsound.hxx>
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FGFX::FGFX ( SGSoundMgr *smgr, const string &refname ) :
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_enabled( fgGetNode("/sim/sound/effects/enabled", true) ),
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_volume( fgGetNode("/sim/sound/effects/volume", true) ),
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_avionics_enabled( fgGetNode("/sim/sound/avionics/enabled", true) ),
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_avionics_volume( fgGetNode("/sim/sound/avionics/volume", true) ),
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_avionics_external( fgGetNode("/sim/sound/avionics/external-view", true) ),
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_internal( fgGetNode("/sim/current-view/internal", true) )
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{
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SGSampleGroup::_smgr = smgr;
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SGSampleGroup::_refname = refname;
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SGSampleGroup::_smgr->add(this, refname);
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_avionics = _smgr->find("avionics", true);
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_avionics->tie_to_listener();
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}
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FGFX::~FGFX ()
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{
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for (unsigned int i = 0; i < _sound.size(); i++ ) {
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delete _sound[i];
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}
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_sound.clear();
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}
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void
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FGFX::init()
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{
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SGPropertyNode *node = fgGetNode("/sim/sound", true);
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string path_str = node->getStringValue("path");
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if (path_str.empty()) {
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SG_LOG(SG_GENERAL, SG_ALERT, "No path in /sim/sound/path");
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return;
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}
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SGPath path = globals->resolve_aircraft_path(path_str);
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SG_LOG(SG_GENERAL, SG_INFO, "Reading sound " << node->getName()
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<< " from " << path.str());
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SGPropertyNode root;
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try {
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readProperties(path.str(), &root);
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} catch (const sg_exception &) {
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SG_LOG(SG_GENERAL, SG_ALERT,
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"Error reading file '" << path.str() << '\'');
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return;
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}
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node = root.getNode("fx");
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if(node) {
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for (int i = 0; i < node->nChildren(); ++i) {
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SGXmlSound *sound = new SGXmlSound();
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try {
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sound->init(globals->get_props(), node->getChild(i), this,
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_avionics, globals->get_fg_root());
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_sound.push_back(sound);
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} catch ( sg_exception &e ) {
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SG_LOG(SG_GENERAL, SG_ALERT, e.getFormattedMessage());
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delete sound;
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}
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}
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}
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}
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void
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FGFX::reinit()
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{
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_sound.clear();
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init();
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};
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void
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FGFX::update (double dt)
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{
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bool active = _avionics_external->getBoolValue() ||
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_internal->getBoolValue();
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if ( active && _avionics_enabled->getBoolValue() )
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_avionics->resume(); // no-op if already in resumed state
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else
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_avionics->suspend();
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_avionics->set_volume( _avionics_volume->getFloatValue() );
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if ( _enabled->getBoolValue() ) {
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set_volume( _volume->getDoubleValue() );
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resume();
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// update sound effects if not paused
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for ( unsigned int i = 0; i < _sound.size(); i++ ) {
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_sound[i]->update(dt);
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}
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SGSampleGroup::update(dt);
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}
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else
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suspend();
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}
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// end of fg_fx.cxx
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