scummvm/engines/qdengine/qdcore/qd_music_track.cpp

165 lines
4 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "common/debug.h"
#include "qdengine/qd_fwd.h"
#include "qdengine/parser/xml_tag_buffer.h"
#include "qdengine/parser/qdscr_parser.h"
#include "qdengine/qdcore/qd_game_dispatcher.h"
#include "qdengine/qdcore/qd_music_track.h"
namespace QDEngine {
qdMusicTrack::qdMusicTrack() : _volume(256) {
toggle_cycle(true);
}
qdMusicTrack::qdMusicTrack(const qdMusicTrack &trk) : qdConditionalObject(trk),
_file_name(trk._file_name),
_volume(trk._volume) {
}
qdMusicTrack::~qdMusicTrack() {
}
qdMusicTrack &qdMusicTrack::operator = (const qdMusicTrack &trk) {
if (this == &trk) return *this;
*static_cast<qdConditionalObject *>(this) = trk;
_file_name = trk._file_name;
_volume = trk._volume;
return *this;
}
bool qdMusicTrack::load_script(const xml::tag *p) {
load_conditions_script(p);
for (xml::tag::subtag_iterator it = p->subtags_begin(); it != p->subtags_end(); ++it) {
switch (it->ID()) {
case QDSCR_NAME:
set_name(it->data());
break;
case QDSCR_FLAG:
clear_flags();
set_flag(xml::tag_buffer(*it).get_int());
break;
case QDSCR_MUSIC_TRACK_CYCLED:
if (xml::tag_buffer(*it).get_int())
toggle_cycle(true);
else
toggle_cycle(false);
break;
case QDSCR_FILE:
set_file_name(Common::Path(it->data(), '\\'));
break;
case QDSCR_SOUND_VOLUME:
set_volume(xml::tag_buffer(*it).get_int());
break;
}
}
return true;
}
bool qdMusicTrack::save_script(Common::WriteStream &fh, int indent) const {
for (int i = 0; i < indent; i++) {
fh.writeString("\t");
}
fh.writeString("<music_track");
if (name()) {
fh.writeString(Common::String::format(" name=\"%s\"", qdscr_XML_string(name())));
}
if (debugChannelSet(-1, kDebugLog))
fh.writeString(Common::String::format(" flags=\"%s\"", flag2str(flags()).c_str()));
else
fh.writeString(Common::String::format(" flags=\"%d\"", flags()));
if (!_file_name.empty()) {
fh.writeString(Common::String::format(" file=\"%s\"", qdscr_XML_string(_file_name.toString('\\'))));
}
if (is_cycled()) {
fh.writeString(" cycled=\"1\"");
}
if (_volume != 256) {
fh.writeString(Common::String::format(" volume=\"%d\"", _volume));
}
if (has_conditions()) {
fh.writeString(">\r\n");
save_conditions_script(fh, indent);
for (int i = 0; i < indent; i++) {
fh.writeString("\t");
}
fh.writeString("</music_track>\r\n");
} else {
fh.writeString("/>\r\n");
}
return true;
}
#define defFlag(x) { x, #x }
struct FlagsList {
int f;
const char *s;
} static flagList[] = {
defFlag(QD_MUSIC_TRACK_CYCLED),
defFlag(QD_MUSIC_TRACK_DISABLE_RESTART),
defFlag(QD_MUSIC_TRACK_DISABLE_SWITCH_OFF),
};
Common::String qdMusicTrack::flag2str(int fl) {
Common::String res;
for (int i = 0; i < ARRAYSIZE(flagList); i++) {
if (fl & flagList[i].f) {
if (!res.empty())
res += " | ";
res += flagList[i].s;
fl &= ~flagList[i].f;
}
}
if (fl)
res += Common::String::format(" | %x", fl);
return res;
}
qdConditionalObject::trigger_start_mode qdMusicTrack::trigger_start() {
if (qdGameDispatcher * dp = qd_get_game_dispatcher()) {
dp->play_music_track(this);
return qdConditionalObject::TRIGGER_START_ACTIVATE;
}
return qdConditionalObject::TRIGGER_START_FAILED;
}
} // namespace QDEngine