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Network / Code using udp socket not working

« on: November 07, 2022, 05:06:40 pm »

Why does this code work if i test it by opening the .exe file 2 times on my computer but doesn't if i try it on separate ones?

#include "SFML\Graphics.hpp"
#include "SFML\Window.hpp"
#include "SFML\Network.hpp"\

#include <iostream>
#include <vector>

using namespace std;

int main()
{
        sf::UdpSocket socket;
        sf::IpAddress thisIp = sf::IpAddress::getLocalAddress();
        socket.bind(sf::Socket::AnyPort);
        char clientServerOption;
        cout << "Type 'c' for client and 's' for server"<<endl;
        cin >> clientServerOption;

        if(clientServerOption == 'c')
        {
                string str;
                cout << "Type the IP address here" << endl;
                cin >> str;
                sf::IpAddress serverIp = sf::IpAddress(str);
                cout << "Type the Server Port here" << endl;
                cin >> str;
                unsigned short serverPort = stoi(str);

                cout << "Send: ";
                cin.ignore();
                getline(cin, str, '\n');

                sf::Packet packet;
                packet << str;
                socket.send(packet, serverIp, serverPort);
                socket.receive(packet, serverIp, serverPort);
                packet >> str;
                cout << "Server says: " << str << endl;
        }
        else if(clientServerOption == 's')
        {
                vector <sf::IpAddress> clientIps;
                vector <unsigned short> clientPorts;
                clientIps.push_back(sf::IpAddress());
                clientPorts.push_back(0);
                unsigned short thisPort = socket.getLocalPort();
                cout << "Server hosted with ip " << thisIp << " on port " << thisPort << endl;
                sf::Packet packet;
                socket.receive(packet, clientIps.at(0), clientPorts.at(0));
                string getMessage;
                packet >> getMessage;
                packet.clear();
                cout << getMessage << endl;
                packet << "Message Received";
                socket.send(packet, clientIps.at(0), clientPorts.at(0));
        }

        system("pause");
       
}