C++ sound::isValid方法代码示例

int main() {
  // initialize audio system
  YSE::System().init();

  // load a sound in memory
  sound.create("drone.ogg", NULL, true);

  // false on validation means the sound could not be loaded
  if (!sound.isValid()) {
    std::cout << "sound 'drone.ogg' not found" << std::endl;
    std::cin.get();
    goto exit;
  }

  std::cout << "This is a bare-bones YSE example. It contains the minimum you need to start your own projects." << std::endl;
  std::cout << "Press spacebar to toggle sound playing." << std::endl;
  std::cout << "Or e to exit." << std::endl;

  while (true) {
    if (_kbhit()) {
      char ch = _getch();
      switch (ch) {
        // toggle function toggles play / pause
      case ' ': sound.toggle(); break;
      case 'a': sound.play(); break;
      case 's': sound.pause(); break;
      case 'd': sound.stop(); break;
      case 'e': goto exit;
      }
    }

    /* the sleep function can be used to make sure the update function doesn't run at full
    speed. In a simple demo it does not make sense to update that much. In real software
    this should probably not be used. Just call YSE::System.update() in your main program loop.
    */
    YSE::System().sleep(100);
    
    /* The update function activates all changes you made to sounds and channels since the last call.
    This function locks the audio processing thread for a short time. Calling it more than 50 times
    a second is really overkill, so call it once in your main program loop, not after changing every setting.
    */
    YSE::System().update();
  }

exit:
  // don't forget this...
  YSE::System().close();
  return 0;
}

int main() {
  YSE::System().init();

  // setting the last parameter to true will enable streaming
  sound.create("pulse1.ogg", NULL, true, 1.0f, true);
  if (!sound.isValid()) {
    std::cout << "sound 'pulse1.ogg' not found" << std::endl;
    std::cin.get();
    goto exit;
  }

  std::cout << "Use q/a to change the sound speed up and down." << std::endl;
  std::cout << "Use s/d/f to pause/stop/play." << std::endl;
  std::cout << "...or e to exit." << std::endl;

  sound.play();

  while (true) {
    if (_kbhit()) {
      char ch = _getch();
      switch (ch) {
      case 'q': sound.setSpeed(sound.getSpeed() + 0.01); break;
      case 'a': sound.setSpeed(sound.getSpeed() - 0.01); break;
      case 's': sound.pause(); break;
      case 'd': sound.stop(); break;
      case 'f': sound.play(); break;
      case 'e': goto exit;
      }
    }

    YSE::System().sleep(100);
    YSE::System().update();
  }

exit:
  YSE::System().close();
  return 0;
}

int main() {
  YSE::System().init();
  sound.create("contact.ogg", NULL, true);
  if (!sound.isValid()) {
    std::cout << "sound 'contact.ogg' not found" << std::endl;
    std::cin.get();
    goto exit;
  }

  std::cout << "This shows how to alter basic sound properties." << std::endl;
  std::cout << "Use q/a to change the sound speed up and down." << std::endl;
  std::cout << "Use w/s to change the volume up and down." << std::endl;
  std::cout << "...or e to exit." << std::endl;

  sound.play();

  while (true) {
    if (_kbhit()) {
      char ch = _getch();
      switch (ch) {
      case 'q': sound.setSpeed(sound.getSpeed() + 0.01f); break;
      case 'a': sound.setSpeed(sound.getSpeed() - 0.01f); break;
      case 's': sound.setVolume(sound.getVolume() - 0.1f); break;
      case 'w': sound.setVolume(sound.getVolume() + 0.1f); break;
      case 'e': goto exit;
      }
    }

    YSE::System().sleep(100);
    YSE::System().update();
  }

exit:
  YSE::System().close();
  return 0;
}

int main() {
  YSE::System().init();

  // load handclap sound, non-looping
  snare.create("snare.ogg", NULL, true);

  if (!snare.isValid()) {
    std::cout << "sound 'snare.ogg' not found" << std::endl;
    std::cin.get();
    goto exit;
  }

  // set global reverb
  YSE::System().getGlobalReverb().setActive(true);
  YSE::System().getGlobalReverb().setPreset(YSE::REVERB_GENERIC);
  YSE::ChannelMaster().attachReverb();

  // 'world' reverbs can be added at specific positions
  // size is the maximum distance from the reverb at which it its influence is at maximum level
  // rolloff indicates how far outside its size it will drop to zero influence (linear curve)

  // add reverb at 5 meter
  bathroom.create();
  bathroom.setPosition(YSE::Vec(0, 0, 5)).setSize(1).setRollOff(1);
  bathroom.setPreset(YSE::REVERB_BATHROOM);

  // add reverb at 10 meter
  hall.create();
  hall.setPosition(YSE::Vec(0, 0, 10)).setSize(1).setRollOff(1);
  hall.setPreset(YSE::REVERB_HALL);

  // add reverb at 15 meter
  sewer.create();
  sewer.setPosition(YSE::Vec(0, 0, 15)).setSize(1).setRollOff(1);
  sewer.setPreset(YSE::REVERB_SEWERPIPE);

  // add reverb at 20 meter
  custom.create();
  custom.setPosition(YSE::Vec(0, 0, 20)).setSize(1).setRollOff(1);
  // for this reverb we use custom parameters instead of a preset
  // (these are meant to sound awkward)
  custom.setRoomSize(1.0).setDamping(0.1).setDryWetBalance(0.0, 1.0).setModulation(6.5, 0.7);
  custom.setReflection(0, 1000, 0.5).setReflection(1, 1500, 0.6);
  custom.setReflection(2, 2100, 0.8).setReflection(3, 2999, 0.9);

  std::cout << "This example as one global reverb. On top of that, there are several localized reverbs which will alter the listener's experience when moving around." << std::endl;
  std::cout << "Use q/a to move sound and listener forward / back." << std::endl;
  std::cout << "Use w/s to toggle global reverb on / off." << std::endl;
  std::cout << "...or e to exit." << std::endl;

  while (true) {
    if (_kbhit()) {
      char ch = _getch();
      switch (ch) {
      case 'q': {
                  YSE::Vec pos = YSE::Listener().getPosition();
                  pos.z += 0.1;
                  YSE::Listener().setPosition(pos);
                  snare.setPosition(pos);
                  break;
      }
      case 'a':{
                 YSE::Vec pos = YSE::Listener().getPosition();
                 pos.z -= 0.1;
                 YSE::Listener().setPosition(pos);
                 snare.setPosition(pos);
                 break;
      }
      case 'w': YSE::System().getGlobalReverb().setActive(true); break;
      case 's': YSE::System().getGlobalReverb().setActive(false); break;

      case 'e': goto exit;
      }
    }

    if (snare.isStopped()) {
      snare.play();
    }

    YSE::System().sleep(100);
    YSE::System().update();
#ifdef WINDOWS
    _cprintf_s("Position (z): %.2f \r", YSE::Listener().getPosition().z);
#endif
  }

exit:
  YSE::System().close();
  return 0;
}