144 lines
3.6 KiB
C++
144 lines
3.6 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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last_pause( true ),
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last_volume( 0.0 ),
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_pause( fgGetNode("/sim/sound/pause") ),
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_volume( fgGetNode("/sim/sound/volume") )
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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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}
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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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SGPath path( globals->get_fg_root() );
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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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path.append(path_str.c_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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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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// command sound manger
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bool new_pause = _pause->getBoolValue();
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if ( new_pause != last_pause ) {
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if ( new_pause ) {
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suspend();
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} else {
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resume();
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}
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last_pause = new_pause;
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}
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double volume = _volume->getDoubleValue();
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if ( volume != last_volume ) {
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set_volume( volume );
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last_volume = volume;
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}
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if ( !new_pause ) {
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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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}
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SGSampleGroup::update(dt);
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}
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// end of fg_fx.cxx
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