105 lines
2.7 KiB
C++
105 lines
2.7 KiB
C++
/***************************************************************************
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alienBlaster
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Copyright (C) 2004
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Paul Grathwohl, Arne Hormann, Daniel Kuehn, Soenke Schwardt
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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***************************************************************************/
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#ifndef MIXER_HH
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#define MIXER_HH
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#include "SDL.h"
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#include "SDL_mixer.h"
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#include <vector>
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#include <map>
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#include <string>
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#include "global.h"
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typedef vector<Mix_Chunk*> MixChunks;
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typedef vector<Mix_Music*> Musics;
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class Mixer;
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const int MIXER_NUMBER_CHANNELS = 32;
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// reserved for samples, which should play with priority
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const int MIXER_RESERVED_CHANNELS = 8;
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class Mixer {
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private:
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MixChunks mixChunks;
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Musics musics;
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void initMixer();
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void freeMixer();
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map< string, int > fn2mus;
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map< string, int > fn2snd;
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map< int, int > playsOn;
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bool enabled;
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int reservedChannels;
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int lastUsedReservedChannel;
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MusicTracks musicPlaying;
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public:
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Mixer();
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~Mixer();
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/*
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Loads a sample, returns an id used for playSample
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0 as a return value indicates an error on loading
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param volume: use with care: if the sound is loaded
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for the first time, its volumevalue will be set to
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volume, else it will be ignored. (0..127)
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*/
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int loadSample(string fileName, int volume=10);
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/*
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plays the sample with the given id
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if withPriority==true the sample will be played in one of the reserved channels
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returns true if successfull, false otherwise
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*/
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bool playSample(int sampleId, int loop, bool withPriority=false);
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bool stopSample(int sampleId);
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/*
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resets the Mixer (frees all samples and channels, inits new ones).
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Use with care:
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- samples still playing will be apruptly halted
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- keep in mind that there is only one mixer
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=> it is resetted globally!!!
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*/
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void reset();
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/*
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fades out all channels
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*/
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void fadeOut(int mSecs);
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int loadMusic( string fileName );
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void playMusic( MusicTracks musNum, int loop, int fadeInTime=0 );
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void stopMusic( int fadeOutTime=0 );
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MusicTracks whichMusicPlaying();
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static Mixer & mixer();
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};
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#endif //#define MIXER_HH
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