Method SendMessage

avida-core/source/main/cPopulationInterface.cc:523–581

! Internal-use method to consolidate message-sending code. */

/*! Internal-use method to consolidate message-sending code.
 */
bool cPopulationInterface::SendMessage(cOrgMessage& msg, cPopulationCell& rcell) //**
{
  bool dropped = false;
  bool lost = false;

  static const double drop_prob = m_world->GetConfig().NET_DROP_PROB.Get();
  if ((drop_prob > 0.0) && m_world->GetRandom().P(drop_prob)) {
    // message dropped
    GetDeme()->messageDropped();
    GetDeme()->messageSendFailed();
    dropped = true;
  }

  if (!m_world->GetConfig().NEURAL_NETWORKING.Get() || m_world->GetConfig().USE_AVATARS.Get() != 2) {
    // Not using neural networking avatars..
    // Fail if the cell we're facing is not occupied.
    if(!rcell.IsOccupied()) lost = true;
  } else {
    // If neural networking with avatars check for input avatars in this cell
    if (!rcell.GetNumAVInputs()) lost = true;
    // If self communication is not allowed, must check for an input avatar for another organism
    else if (!m_world->GetConfig().SELF_COMMUNICATION.Get()) {
      lost = true;
      cOrganism* sender = GetOrganism();
      for (int i = 0; i < rcell.GetNumAVInputs(); i++) {
        if (sender != rcell.GetCellInputAVs()[i]) lost = false;
      }
    }
  }

  if (lost) GetDeme()->messageSendFailed();

  // record this message, regardless of whether it's actually received.
  if(m_world->GetConfig().NET_LOG_MESSAGES.Get()) m_world->GetStats().LogMessage(msg, dropped, lost);

  if(dropped || lost) return false;

  if (!m_world->GetConfig().NEURAL_NETWORKING.Get() || m_world->GetConfig().USE_AVATARS.Get() != 2) {
    // Not using neural networking avatars..
    cOrganism* recvr = rcell.GetOrganism();
    assert(recvr != 0);
    recvr->ReceiveMessage(msg);
    m_world->GetStats().SentMessage(msg);
    GetDeme()->MessageSuccessfullySent();
  } else {
    // If using neural networking avatars, message must be sent to all orgs with input avatars in the cell. @JJB
    cOrganism* sender = GetOrganism();
    for (int i = 0; i < rcell.GetNumAVInputs(); i++) {
      cOrganism* recvr = rcell.GetCellInputAVs()[i];
      assert(recvr != 0);
      if ((sender != recvr) || m_world->GetConfig().SELF_COMMUNICATION.Get()) {
        recvr->ReceiveMessage(msg);
        m_world->GetStats().SentMessage(msg);
        GetDeme()->MessageSuccessfullySent();
      }
    }
  }
  return true;