1 // ambient_sound.h basti_
5 // This program is free software; you can redistribute it and/or
6 // modify it under the terms of the GNU General Public License
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8 // of the License, or (at your option) any later version.
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13 // GNU General Public License for more details.
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21 * Ambient Sound Source, beta version. Features:
23 * - "disc" like structure. Full volume up to some distance
24 * (distance_bias) to the source, then fading proportional to
25 * inverse square distance
27 * This is experimental and clicks a little. It is not possible to
28 * get the clicks out without sample-granular volume adjustment.
33 #ifndef __AMBIENT_SOUND_H__
34 #define __AMBIENT_SOUND_H__
37 #include "game_object.h"
38 #include "resources.h"
40 #include "SDL_mixer.h"
42 class AmbientSound : public GameObject
45 AmbientSound(const lisp::Lisp& lisp);
48 virtual void hit(Player& player);
49 virtual void action(float time);
50 virtual void draw(DrawingContext&);
51 virtual void startPlaying();
58 float distance_factor; /// distance scaling
59 float distance_bias; /// 100% volume disc radius
60 float silence_distance; /// not implemented yet
62 float targetvolume; /// how loud we want to be
63 float currentvolume; /// how loud we are
65 float * volume_ptr; /// this will be used by the volume adjustment effect.