3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation; either version 2.1 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
27 class OnDemandSoundFetcher
30 virtual void fetchSounds(const std::string &name,
31 std::set<std::string> &dst_paths,
32 std::set<std::string> &dst_datas) = 0;
38 virtual ~ISoundManager() = default;
40 // Multiple sounds can be loaded per name; when played, the sound
41 // should be chosen randomly from alternatives
42 // Return value determines success/failure
43 virtual bool loadSoundFile(
44 const std::string &name, const std::string &filepath) = 0;
45 virtual bool loadSoundData(
46 const std::string &name, const std::string &filedata) = 0;
48 virtual void updateListener(
49 const v3f &pos, const v3f &vel, const v3f &at, const v3f &up) = 0;
50 virtual void setListenerGain(float gain) = 0;
52 // playSound functions return -1 on failure, otherwise a handle to the
53 // sound. If name=="", call should be ignored without error.
54 virtual int playSound(const std::string &name, bool loop, float volume,
55 float fade = 0.0f, float pitch = 1.0f) = 0;
56 virtual int playSoundAt(const std::string &name, bool loop, float volume, v3f pos,
57 float pitch = 1.0f) = 0;
58 virtual void stopSound(int sound) = 0;
59 virtual bool soundExists(int sound) = 0;
60 virtual void updateSoundPosition(int sound, v3f pos) = 0;
61 virtual bool updateSoundGain(int id, float gain) = 0;
62 virtual float getSoundGain(int id) = 0;
63 virtual void step(float dtime) = 0;
64 virtual void fadeSound(int sound, float step, float gain) = 0;
66 int playSound(const SimpleSoundSpec &spec, bool loop)
68 return playSound(spec.name, loop, spec.gain, spec.fade, spec.pitch);
70 int playSoundAt(const SimpleSoundSpec &spec, bool loop, const v3f &pos)
72 return playSoundAt(spec.name, loop, spec.gain, pos, spec.pitch);
76 class DummySoundManager : public ISoundManager
79 virtual bool loadSoundFile(const std::string &name, const std::string &filepath)
83 virtual bool loadSoundData(const std::string &name, const std::string &filedata)
87 void updateListener(const v3f &pos, const v3f &vel, const v3f &at, const v3f &up)
90 void setListenerGain(float gain) {}
91 int playSound(const std::string &name, bool loop, float volume, float fade,
96 int playSoundAt(const std::string &name, bool loop, float volume, v3f pos,
101 void stopSound(int sound) {}
102 bool soundExists(int sound) { return false; }
103 void updateSoundPosition(int sound, v3f pos) {}
104 bool updateSoundGain(int id, float gain) { return false; }
105 float getSoundGain(int id) { return 0; }
106 void step(float dtime) {}
107 void fadeSound(int sound, float step, float gain) {}
110 // Global DummySoundManager singleton
111 extern DummySoundManager dummySoundManager;