Exemple #1
0
void VFmodManager::RunTick(float fTimeDelta)
{
  VISION_PROFILE_FUNCTION(PROFILING_FMOD_OVERALL);

  if (!IsInitialized())
  {
    if (!IsOutputDevicePresent())
      InitDevice();

    return; 
  }

  // profiling scope
  {
    VISION_PROFILE_FUNCTION(PROFILING_FMOD_PUREUPDATE);

    VASSERT(m_pEventSystem!=NULL);

    // update Fmod listener attributes
    VisObject3D_cl *pListener = m_pListenerObject;
    if (pListener == NULL)
    {
      // The listener is the main camera. Check for teleportation since the last Fmod update, in
      // which case we won't use the position difference to calculate the listener speed.
      VisContextCamera_cl* pCamera = Vision::Camera.GetMainCamera();
      VisRenderContext_cl* pContext = VisRenderContext_cl::GetMainRenderContext();
      if (pCamera != NULL && pContext != NULL)
      {
        if (m_bLastListenerPositionValid && pCamera->GetLastTeleported() > m_iFrameOfLastUpdate)
          m_bLastListenerPositionValid = false;

        m_iFrameOfLastUpdate = pContext->GetLastRenderedFrame();
        pListener = pCamera;
      }
    }

    if (!pListener)
      return;

    hkvVec3 vCamPos = pListener->GetPosition();
    hkvVec3 vDir(pListener->GetObjDir()),
            vRight(pListener->GetObjDir_Right()),
            vUp(pListener->GetObjDir_Up());

    // Determine the camera velocity based on the previous known position
    hkvVec3 vCamVel(m_bLastListenerPositionValid && (fTimeDelta > 0.f) ? (vCamPos - m_vLastListenerPosition) * (1.f / fTimeDelta) : hkvVec3::ZeroVector());
    m_vLastListenerPosition = vCamPos;
    m_bLastListenerPositionValid = true;

    vUp = -vUp; // compensate for coordinate system
    m_pEventSystem->set3DListenerAttributes(0, (FMOD_VECTOR *)&vCamPos, (FMOD_VECTOR *)&vCamVel, (FMOD_VECTOR *)&vDir, (FMOD_VECTOR *)&vUp);

    // update all sound objects 
    SoundInstances().Update(fTimeDelta);

    // update all events 
    Events().Update(fTimeDelta);

    // update Fmod event system
    m_fTimeLeftOver += fTimeDelta;
    if (m_fTimeLeftOver > m_config.fTimeStep)
    { 
      m_pEventSystem->update();

#ifdef VFMOD_SUPPORTS_NETWORK
      if (m_config.bUseNetworkSystem)
        FMOD::NetEventSystem_Update();
#endif
      m_fTimeLeftOver = hkvMath::mod (m_fTimeLeftOver, m_config.fTimeStep);
    }
  }

  // do not purge sounds/ events in vForge, in order to allow toggling playback via hotspot button
  if (Vision::Editor.IsInEditor())
    return;  

  if (m_bAnyStopped)
  {
    VISION_PROFILE_FUNCTION(PROFILING_FMOD_PURGE);

    // all sounds/ events that have finished playing are removed from handling
    SoundInstances().PurgeNotPlaying();
    Events().PurgeNotPlaying();

    m_bAnyStopped = false; // reset any stopped flag
  }
}