public void enter(GameContainer gc, StateBasedGame sbg) throws SlickException {
// The listener is reset
AlUtils.resetAlListener();
// the orientation is changed
AlUtils.setAlListenerOrientation(0.0f, 0.0f, -1.0f, -1.0f, 0.0f, 0.0f);
// we set sound context
AL10.alDistanceModel(AL11.AL_EXPONENT_DISTANCE);
AL10.alDopplerFactor(0.8f);
// We play the two sounds since we enter
sonG.loop(1f, 1f, 0f, 0f, 0f);
sonD.loop(1f, 1f, 0f, 0f, 0f);
AL10.alSourcef(sonG.getIndex(), AL10.AL_ROLLOFF_FACTOR, 1.5f);
AL10.alSourcef(sonD.getIndex(), AL10.AL_ROLLOFF_FACTOR, 1.5f);
// We play the beginning explanation sound
enterSound.play();
}
@Override
public void leave(GameContainer gc, StateBasedGame sbg) throws SlickException {
reset();
AlUtils.stopAllSounds();
AlUtils.resetAlListener();
}