soundmanager.h

00001 /***************************************************************************
00002  *   Copyright (C) 2005-2008 by the FIFE team                              *
00003  *   http://www.fifengine.de                                               *
00004  *   This file is part of FIFE.                                            *
00005  *                                                                         *
00006  *   FIFE is free software; you can redistribute it and/or                 *
00007  *   modify it under the terms of the GNU Lesser General Public            *
00008  *   License as published by the Free Software Foundation; either          *
00009  *   version 2.1 of the License, or (at your option) any later version.    *
00010  *                                                                         *
00011  *   This library is distributed in the hope that it will be useful,       *
00012  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
00013  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
00014  *   Lesser General Public License for more details.                       *
00015  *                                                                         *
00016  *   You should have received a copy of the GNU Lesser General Public      *
00017  *   License along with this library; if not, write to the                 *
00018  *   Free Software Foundation, Inc.,                                       *
00019  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
00020  ***************************************************************************/
00021 
00022 #ifndef FIFE_SOUNDMANAGER_H
00023 #define FIFE_SOUNDMANAGER_H
00024 
00025 // Standard C++ library includes
00026 
00027 // Platform specific includes
00028 
00029 // 3rd party library includes
00030 
00031 // FIFE includes
00032 // These includes are split up in two parts, separated by one empty line
00033 // First block: files included from the FIFE root src directory
00034 // Second block: files included from the same folder
00035 #include "fife_openal.h"
00036 
00037 namespace FIFE {
00038     class SoundEmitter;
00039     class SoundClipPool;
00040 
00041     class SoundManager {
00042     public:
00043     
00044         SoundManager(SoundClipPool* pool);
00045         
00046         ~SoundManager();
00047         
00050         void init();
00051 
00057         SoundEmitter* getEmitter(unsigned int emitterid) const;
00058         
00061         SoundEmitter* createEmitter();
00062         
00065         void releaseEmitter(unsigned int emitterid);
00066         
00069         ALCcontext* getContext() const {
00070             return m_context;
00071         }
00072         
00077         void setVolume(float vol) {
00078             if (m_device == NULL) {
00079                 m_volume = vol;
00080             }
00081             alListenerf(AL_GAIN, vol);
00082         }
00083         
00086         void mute() {
00087             alGetListenerf(AL_GAIN, &m_mutevol);
00088             alListenerf(AL_GAIN, 0);
00089         }
00090         
00093         void unmute() {
00094             alListenerf(AL_GAIN, m_mutevol);
00095         }
00096         
00099         void setListenerPosition(float x, float y, float z) {
00100             alListener3f(AL_POSITION, x, y, z);
00101         }
00102         
00105         void setListenerOrientation(float x, float y, float z) {
00106             ALfloat vec[6] = { x, y, z, 0.0, 0.0, 1.0};
00107             alListenerfv(AL_ORIENTATION, vec);
00108         }
00109         
00112         void setListenerVelocity(float x, float y, float z);
00113         
00116         bool isActive() const{
00117             return m_device != NULL;
00118         }
00119         
00120     private:
00121     
00122         std::vector<SoundEmitter*> m_emittervec;    // emitter-vector
00123         ALCcontext*                     m_context;      // OpenAL context
00124         ALCdevice*                      m_device;       // OpenAL device
00125         SoundClipPool*              m_pool;
00126         float                               m_mutevol;      // volume before mute() was called
00127         float                               m_volume;       // volume to support setVolume-calls before initialization
00128     };
00129 }
00130 #endif
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