HDB: Add Music/Song data and functions

5 files changed, 199 insertions, 19 deletions

diff --git a/engines/hdb/hdb.cpp b/engines/hdb/hdb.cpp
index 11c10cc7be..e58cae1ca2 100644
--- a/engines/hdb/hdb.cpp
+++ b/engines/hdb/hdb.cpp
@@ -32,8 +32,8 @@
 #include "hdb/input.h"
 #include "hdb/lua-script.h"
 #include "hdb/map.h"
-#include "hdb/sound.h"
 #include "hdb/menu.h"
+#include "hdb/sound.h"
 #include "hdb/mpc.h"
 #include "hdb/window.h"
 
@@ -152,6 +152,11 @@ bool HDBGame::init() {
 	return true;
 }
 
+void HDBGame::initializePath(const Common::FSNode &gamePath) {
+	Engine::initializePath(gamePath);
+	SearchMan.addDirectory("music", gamePath.getChild("music"));
+}
+
 void HDBGame::changeGameState() {
 
 	switch (_gameState) {
@@ -856,8 +861,6 @@ Common::Error HDBGame::run() {
 	// Initializes Graphics
 	initGraphics(kScreenWidth, kScreenHeight, &_format);
 
-	_sound->test();
-
 	start();
 
 #if 0
diff --git a/engines/hdb/hdb.h b/engines/hdb/hdb.h
index 6d23bde7c3..d55f8b38ab 100644
--- a/engines/hdb/hdb.h
+++ b/engines/hdb/hdb.h
@@ -26,6 +26,7 @@
 #include "common/scummsys.h"
 #include "common/system.h"
 #include "common/savefile.h"
+#include "common/fs.h"
 
 #include "engines/engine.h"
 
@@ -145,6 +146,7 @@ public:
 	~HDBGame();
 
 	virtual bool hasFeature(Engine::EngineFeature f) const;
+	virtual void initializePath(const Common::FSNode &gamePath);
 
 	virtual Common::Error run();
 
diff --git a/engines/hdb/menu.h b/engines/hdb/menu.h
index 5f846b020b..b9d5aeba98 100644
--- a/engines/hdb/menu.h
+++ b/engines/hdb/menu.h
@@ -24,6 +24,8 @@
 #define HDB_MENU_H
 
 #include "common/events.h"
+#include "hdb/ai.h"
+#include "hdb/sound.h"
 
 namespace HDB {
 
diff --git a/engines/hdb/sound.cpp b/engines/hdb/sound.cpp
index ce515aee15..c4ff8369bf 100644
--- a/engines/hdb/sound.cpp
+++ b/engines/hdb/sound.cpp
@@ -21,10 +21,13 @@
  */
 
 #include "common/debug.h"
+#include "common/file.h"
+#include "common/fs.h"
 
 #include "hdb/hdb.h"
 #include "hdb/file-manager.h"
 #include "hdb/mpc.h"
+#include "hdb/menu.h"
 #include "hdb/sound.h"
 
 namespace HDB {
@@ -1390,6 +1393,7 @@ const SoundLookUp soundList[] =  {
 
 Sound::Sound() {
 	_sfxVolume = 255;
+	_musicVolume = 255;
 }
 
 void Sound::test() {
@@ -1402,7 +1406,7 @@ void Sound::test() {
 }
 
 bool Sound::init() {
-	warning("STUB: Initialize songs");
+	_song1.playing = _song2.playing = false;
 
 	//
 	// init sound caching system
@@ -1443,6 +1447,22 @@ void Sound::loadSaveFile(Common::InSaveFile *in) {
 	}
 }
 
+void Sound::setMusicVolume(int volume) {
+	_musicVolume = volume;
+	if (_song1.playing) {
+		if (_song1.fadingIn)
+			_song1.fadeInVol = volume;
+		if (!_song1.fadingOut)
+			g_hdb->_mixer->setChannelVolume(*_song1.handle, volume);
+	}
+	if (_song2.playing) {
+		if (_song2.fadingIn)
+			_song1.fadeInVol = volume;
+		if (!_song2.fadingOut)
+			g_hdb->_mixer->setChannelVolume(*_song2.handle, volume);
+	}
+}
+
 bool Sound::playSound(int index) {
 	debug(9, "STUB: Play Sound");
 	return true;
@@ -1488,32 +1508,154 @@ bool Sound::playVoice(int index, int actor) {
 }
 
 bool Sound::startMusic(SoundType song) {
-	warning("STUB: Start Music");
-	return true;
+	g_hdb->_menu->saveSong(song);
+
+	if (!_musicVolume)
+		return false;
+
+	return beginMusic(song, false, 0);
 }
 
 bool Sound::fadeInMusic(SoundType song, int ramp) {
-	warning("STUB: Fade In Music");
-	return true;
+	g_hdb->_menu->saveSong(song);
+
+	if (!_musicVolume)
+		return false;
+
+	stopMusic();
+	return beginMusic(song, false, ramp);
 }
 
 void Sound::fadeOutMusic(int ramp) {
-	warning("STUB: Fade Out Music");
-	return;
+	if (_song1.playing) {
+		_song1.fadeOutRamp = ramp;
+		_song1.fadingOut = true;
+		_song1.fadeOutVol = _musicVolume;
+	} else if (_song2.playing) {
+		_song2.fadeOutRamp = ramp;
+		_song2.fadingOut = true;
+		_song2.fadeOutVol = _musicVolume;
+	}
 }
 
 bool Sound::songPlaying(SoundType song) {
-	warning("STUB: Check if Song is playing");
-	return true;
+	if (_song1.playing && _song1.song == song)
+		return true;
+
+	if (_song2.playing && _song2.song == song)
+		return true;
+
+	return false;
 }
 
 bool Sound::stopChannel(int channel) {
 	debug(9, "STUB: Stop Channel");
+
 	return true;
 }
 
 void Sound::stopMusic() {
-	debug(9, "STUB: Stop Music");
+	if (_song1.playing) {
+		_song1.playing = false;
+		g_hdb->_mixer->stopHandle(*_song1.handle);
+	}
+	if (_song2.playing) {
+		_song2.playing = false;
+		g_hdb->_mixer->stopHandle(*_song2.handle);
+	}
+}
+
+bool Sound::beginMusic(SoundType song, bool fadeIn, int ramp) {
+	if (!_song1.playing) {
+		// Start fading out SONG2 if its playing
+		if (_song2.playing) {
+			_song2.fadeOutRamp = ramp;
+			_song2.fadingOut = true;
+			_song2.fadeOutVol = _musicVolume;
+		}
+
+		// Load up the song
+#ifdef USE_MAD
+		Common::SeekableReadStream *stream = SearchMan.createReadStreamForMember(soundList[song].name);
+		if (stream == nullptr)
+			return false;
+
+		Audio::SeekableAudioStream *audioStream = Audio::makeMP3Stream(stream, DisposeAfterUse::YES);
+		Audio::AudioStream *loopingStream = new Audio::LoopingAudioStream(audioStream, 0, DisposeAfterUse::YES);
+
+		g_hdb->_mixer->setChannelVolume(*_song1.handle, _musicVolume);
+
+		// do we need to fade-in this song?
+		if (fadeIn) {
+			_song1.fadeInRamp = ramp;
+			_song1.fadingIn = true;
+			_song1.fadeInVol = 0;
+			g_hdb->_mixer->setChannelVolume(*_song1.handle, 0);
+		}
+
+		g_hdb->_mixer->playStream(Audio::Mixer::kMusicSoundType, _song1.handle, loopingStream);
+		_song1.playing = true;
+#endif
+	} else if (!_song2.playing) {
+		// Start fading out SONG1 if its playing
+		if (_song1.playing) {
+			_song1.fadeOutRamp = ramp;
+			_song1.fadingOut = true;
+			_song1.fadeOutVol = _musicVolume;
+		}
+
+		// Load up the song
+#ifdef USE_MAD
+		Common::SeekableReadStream *stream = SearchMan.createReadStreamForMember(soundList[song].name);
+		if (stream == nullptr)
+			return false;
+
+		Audio::SeekableAudioStream *audioStream = Audio::makeMP3Stream(stream, DisposeAfterUse::YES);
+		Audio::AudioStream *loopingStream = new Audio::LoopingAudioStream(audioStream, 0, DisposeAfterUse::YES);
+
+		g_hdb->_mixer->setChannelVolume(*_song2.handle, _musicVolume);
+
+		// do we need to fade-in this song?
+		if (fadeIn) {
+			_song2.fadeInRamp = ramp;
+			_song2.fadingIn = true;
+			_song2.fadeInVol = 0;
+			g_hdb->_mixer->setChannelVolume(*_song2.handle, 0);
+		}
+
+		g_hdb->_mixer->playStream(Audio::Mixer::kMusicSoundType, _song2.handle, loopingStream);
+		_song2.playing = true;
+#endif
+	} else
+		return false;
+
+	return true;
+}
+
+void Sound::updateMusic() {
+
+	if (_song1.playing) {
+		if (_song1.fadingOut) {
+			_song1.fadeOutVol = 0;
+			_song1.playing = false;
+			g_hdb->_mixer->stopHandle(*_song1.handle);
+		} else if (_song1.fadingIn) {
+			_song1.fadeInVol = _musicVolume;
+			_song1.fadingIn = false;
+		}
+	}
+
+	if (_song2.playing) {
+		if (_song2.fadingOut) {
+			_song2.fadeOutVol = 0;
+			_song2.playing = false;
+			g_hdb->_mixer->stopHandle(*_song2.handle);
+		} else if (_song2.fadingIn) {
+			_song2.fadeInVol = _musicVolume;
+			_song2.fadingIn = false;
+		}
+	}
+
 }
 
 int Sound::registerSound(const char *name) {
@@ -1560,7 +1702,12 @@ int Sound::getSNDIndex(const char *name) {
 }
 
 SoundType Sound::whatSongIsPlaying() {
-	debug(9, "STUB: whatSongIsPlaying");
+	if (_song1.playing)
+		return _song1.song;
+
+	if (_song2.playing)
+		return _song2.song;
+
 	return SONG_NONE;
 }
 
diff --git a/engines/hdb/sound.h b/engines/hdb/sound.h
index 464663af35..1ed279df96 100644
--- a/engines/hdb/sound.h
+++ b/engines/hdb/sound.h
@@ -1436,6 +1436,28 @@ struct SoundCache {
 	SoundCache() : loaded(0), size(0), name(nullptr), luaName(nullptr), ext(0) {}
 };
 
+struct Song {
+	bool playing;
+	SoundType song;
+	const char *sndMusic;
+	Audio::SoundHandle *handle;
+
+	bool fadingOut;
+	int fadeOutVol;
+	int	fadeOutRamp;
+
+	bool fadingIn;
+	int	fadeInVol;
+	int	fadeInRamp;
+
+	Song() : playing(false), song(SONG_NONE), sndMusic(nullptr), handle(new Audio::SoundHandle()),
+		fadingOut(false), fadeOutVol(0), fadeOutRamp(0),
+		fadingIn(false), fadeInVol(0), fadeInRamp(0) {}
+	~Song() {
+		delete handle;
+	}
+};
+
 class Sound {
 public:
 
@@ -1446,12 +1468,9 @@ public:
 	bool init();
 	void save(Common::OutSaveFile *out);
 	void loadSaveFile(Common::InSaveFile *in);
-	void setMusicVolume(int value) {
-		//debug(9, "STUB: Add Music System Variables");
-	}
+	void setMusicVolume(int value);
 	int getMusicVolume() {
-		//debug(9, "STUB: Add Music System Variables");
-		return 1;
+		return _musicVolume;
 	}
 	void setSFXVolume(int value) {
 		_sfxVolume = value;
@@ -1476,6 +1495,8 @@ public:
 	bool fadeInMusic(SoundType song, int ramp);
 	void fadeOutMusic(int ramp);
 	void stopMusic();
+	bool beginMusic(SoundType song, bool fadeIn, int ramp);
+	void updateMusic();
 	bool songPlaying(SoundType song);
 	bool stopChannel(int channel);
 	int registerSound(const char *name);
@@ -1503,6 +1524,11 @@ public:
 	int _voicesOn;
 	byte _voicePlayed[NUM_VOICES];
 
+	// Music System Variables
+
+	Song _song1, _song2;
+	int _musicVolume;
+
 	// Sound Caching System Variables
 
 	SoundCache _soundCache[kMaxSounds];