void Bank::handleMessage(cMessage *msg) {
 if (msg->arrivedOn("inS")) // przybycie pasażera
 {
 noPassengers++;
 if (maxPassengers > 0) {
 sendPassengers();
 }
 } else // przypłynięcie lub odpłynięcie promu
 {
 MyMessage * myMessage = (MyMessage *) msg;
 maxPassengers = myMessage->getNoPass();
 sendPassengers();
 }
}
void Bank::sendPassengers() {
 if (maxPassengers == 0) {
 return;
 } else if (noPassengers < maxPassengers) {
 MyMessage * myMessage = new MyMessage();
 myMessage->setNoPass(noPassengers);
 myMessage->setNoLeftPass(0);
 maxPassengers -= noPassengers;
 noPassengers = 0;
 send(myMessage, "io$o");
 } else {
 MyMessage * myMessage = new MyMessage();
 myMessage->setNoPass(maxPassengers);
 noPassengers -= maxPassengers;
 myMessage->setNoLeftPass(noPassengers);
 maxPassengers = 0;
 send(myMessage, "io$o");
 }
}