Method Frame

music/sequencer.cpp:283–341

runs a frame of input.

//	runs a frame of input.
void OutrageMusicSeq::Frame(float frame_time) {
  bool start_pending_song = false;
  int i;

  // run check.
  if (!m_sequencer_run)
    return;

  // close all streams that aren't the dominant one and have stopped playing
  for (i = 0; i < OMS_NUM_STRM; i++) {
    if ((&m_strm[i]) != (&m_strm[m_dominant_strm])) {
      if (m_strm[i].m_stream.State() == STRM_STOPPED) {
        m_strm[i].m_stream.Close();
      }
    }
  }

  // determine when to start song if a song is pending.
  if (!m_active_song && m_pending_song) {
    start_pending_song = true;
  }

  if (m_pending_song) {
    if (m_pending_song->immediate_switch == true) {
      start_pending_song = true;
    } else if (m_active_song) {
      if (m_active_song->stream_idle) {
        // this will transfer the current song's steam to the pending one, so the
        // ExecScript function can manage these streams.
        start_pending_song = true;
      } else if (!m_active_song->request_stop) {
        m_active_song->request_stop = true;
      }
    }
  }

  if (start_pending_song) {
    mprintf(0, "MUSIC:Starting pending song.\n");
    LOGFILE((_logfp, "MUSIC:Starting pending song.\n"));
    START_PENDING_SONG();
  }

  // execute song code
  ExecScript(m_active_song);

  //	process streams, starting at dominant stream.
  //	this is vital to ensure that the dominant stream's commands are executed before any
  //	other streams.
  //	i = m_dominant_strm;
  //	do
  //	{
  //		m_strm[i].Process(frame_time);
  //		i++;
  //		if (i == OMS_NUM_STRM) i = 0;
  //	}
  //	while (i != m_dominant_strm);

  m_timer += frame_time;