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Added a system that will handle BGM. Created specific logic for sounds to loop like Petter wants.

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This commit is contained in:
stiffly
2016-02-24 11:51:06 +01:00
parent 2c18068059
commit f72dea3852
4 changed files with 98 additions and 23 deletions
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src/Engine/Sound/SoundManager.cpp
+34 -6
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@@ -56,13 +56,10 @@ void SoundManager::stopEmitters()
void SoundManager::Update(double dt)
{
m_EventBroker->Process<SoundManager>();
deleteInactiveEmitters(); // can be optimized with "EEntityDeleted"
deleteInactiveEmitters();
updateEmitters(dt);
updateListener(dt);
// Editor debug info
ImGui::SliderFloat("BGM", &m_BGMVolumeChannel, 0.0f, 1.0f, "%.3f", 1.0f);
ImGui::SliderFloat("SFX", &m_SFXVolumeChannel, 0.0f, 1.0f, "%.3f", 1.0f);
mainMenuLoop();
}
void SoundManager::deleteInactiveEmitters()
@@ -166,9 +163,20 @@ Source* SoundManager::createSource(std::string filePath)
Source* source = new Source();
source->ALsource = alSource;
source->SoundResource = ResourceManager::Load<Sound>(filePath);
source->Duration = getDurationSeconds(source);
return source;
}
void SoundManager::mainMenuLoop()
{
float time = getTimeOffsetSeconds(m_CurrentBGM);
if (m_CurrentBGM->Duration - time <= 5) { // 5 is hard coded value that Petter recommended
m_CurrentBGM = createSource("Audio/crosscounter.wav");
playSound(m_CurrentBGM);
}
}
void SoundManager::playSound(Source* source)
{
alSourcei(source->ALsource, AL_BUFFER, source->SoundResource->Buffer());
@@ -338,12 +346,32 @@ void SoundManager::setSoundProperties(Source* source, ComponentWrapper* soundCom
float gain = (source->Type == SoundType::SFX) ? m_SFXVolumeChannel : m_BGMVolumeChannel;
alSourcef(source->ALsource, AL_GAIN, (float)(double)(*soundComponent)["Gain"] * gain);
alSourcef(source->ALsource, AL_PITCH, (float)(double)(*soundComponent)["Pitch"]);
alSourcei(source->ALsource, AL_LOOPING, (int)(bool)(*soundComponent)["Loop"]); // YOLO
alSourcei(source->ALsource, AL_LOOPING, (int)(bool)(*soundComponent)["Loop"]);
alSourcef(source->ALsource, AL_MAX_DISTANCE, (float)(double)(*soundComponent)["MaxDistance"]);
alSourcef(source->ALsource, AL_ROLLOFF_FACTOR, (float)(double)(*soundComponent)["RollOffFactor"]);
alSourcef(source->ALsource, AL_REFERENCE_DISTANCE, (float)(double)(*soundComponent)["ReferenceDistance"]);
}
float SoundManager::getDurationSeconds(Source* source)
{
ALuint buffer = source->SoundResource->Buffer();
ALint sizeBytes, channels, bits, frequenzy;
alGetBufferi(buffer, AL_SIZE, &sizeBytes);
alGetBufferi(buffer, AL_CHANNELS, &channels);
alGetBufferi(buffer, AL_BITS, &bits);
alGetBufferi(buffer, AL_FREQUENCY, &frequenzy);
float sampleLength = (float)sizeBytes * 8 / (channels * bits);
return (sampleLength / frequenzy);
}
float SoundManager::getTimeOffsetSeconds(Source* source)
{
float time;
alGetSourcef(source->ALsource, AL_SEC_OFFSET, &time);
return time;
}
void SoundManager::initOpenAL()
{
// Initialize OpenAL