music_room_handler.h

/* 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/>.
 *
 */
 
#ifndef TITANIC_MUSIC_ROOM_HANDLER_H
#define TITANIC_MUSIC_ROOM_HANDLER_H
 
#include "titanic/sound/audio_buffer.h"
#include "titanic/sound/music_room_instrument.h"
#include "titanic/sound/music_song.h"
#include "titanic/sound/wave_file.h"
 
namespace Titanic {
 
class CProjectItem;
class CSoundManager;
 
enum MusicInstrument { BELLS = 0, SNAKE = 1, PIANO = 2, BASS = 3 };
 
struct MusicRoomInstrument {
    int _pitchControl;
    int _speedControl;
    bool _directionControl;
    bool _inversionControl;
    bool _muteControl;
    MusicRoomInstrument() : _pitchControl(0), _speedControl(0), _directionControl(false),
        _inversionControl(false), _muteControl(false) {}
};
 
class CMusicRoomHandler {
private:
    CProjectItem *_project;
    CSoundManager *_soundManager;
    CMusicRoomInstrument *_instruments[4];
    MusicRoomInstrument _array1[4];
    MusicRoomInstrument _array2[4];
    CMusicSong *_songs[4];
    int _startPos[4];
    int _position[4];
    double _animExpiryTime[4];
 
    bool _active;
    CWaveFile *_waveFile;
    int _soundHandle;
    int _instrumentsActive;
    CAudioBuffer *_audioBuffer;
    bool _isPlaying;
    uint _soundStartTicks;
    uint _startTicks;
    int _volume;
private:
    void start();
 
    void updateAudio();
 
    void updateInstruments();
 
    bool pollInstrument(MusicInstrument instrument);
 
    double getAnimDuration(MusicInstrument instrument, int arrIndex);
 
    int getPitch(MusicInstrument instrument, int arrIndex);
public:
    CMusicRoomHandler(CProjectItem *project, CSoundManager *soundManager);
    ~CMusicRoomHandler();
 
    CMusicRoomInstrument *createInstrument(MusicInstrument instrument, int count);
 
    void setup(int volume);
 
    void setActive(bool flag) { _active = flag; }
 
    void stop();
 
    bool checkInstrument(MusicInstrument instrument) const;
 
    void setSpeedControl2(MusicInstrument instrument, int value);
 
    void setPitchControl2(MusicInstrument instrument, int value);
 
    void setInversionControl2(MusicInstrument instrument, bool value);
 
    void setDirectionControl2(MusicInstrument instrument, bool value);
 
    void setPitchControl(MusicInstrument instrument, int value);
 
    void setSpeedControl(MusicInstrument instrument, int value);
 
    void setDirectionControl(MusicInstrument instrument, bool value);
 
    void setInversionControl(MusicInstrument instrument, bool value);
 
    void setMuteControl(MusicInstrument instrument, bool value);
 
    bool update();
};
 
} // End of namespace Titanic
 
#endif /* TITANIC_MUSIC_ROOM_HANDLER_H */