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75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
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////////////////////////////////////////////////////////////
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// Headers
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////////////////////////////////////////////////////////////
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#include <SFML/Network.hpp>
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#include <iomanip>
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#include <iostream>
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#include <optional>
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////////////////////////////////////////////////////////////
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/// Launch a server, wait for a message, send an answer.
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///
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////////////////////////////////////////////////////////////
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void runUdpServer(unsigned short port)
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{
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// Create a socket to receive a message from anyone
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sf::UdpSocket socket;
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// Listen to messages on the specified port
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if (socket.bind(port) != sf::Socket::Done)
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return;
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std::cout << "Server is listening to port " << port << ", waiting for a message... " << std::endl;
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// Wait for a message
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char in[128];
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std::size_t received;
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std::optional<sf::IpAddress> sender;
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unsigned short senderPort;
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if (socket.receive(in, sizeof(in), received, sender, senderPort) != sf::Socket::Done)
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return;
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std::cout << "Message received from client " << sender.value() << ": " << std::quoted(in) << std::endl;
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// Send an answer to the client
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const char out[] = "Hi, I'm the server";
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if (socket.send(out, sizeof(out), sender.value(), senderPort) != sf::Socket::Done)
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return;
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std::cout << "Message sent to the client: " << std::quoted(out) << std::endl;
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}
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////////////////////////////////////////////////////////////
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/// Send a message to the server, wait for the answer
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///
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////////////////////////////////////////////////////////////
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void runUdpClient(unsigned short port)
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{
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// Ask for the server address
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std::optional<sf::IpAddress> server;
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do
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{
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std::cout << "Type the address or name of the server to connect to: ";
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std::cin >> server;
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} while (!server.has_value());
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// Create a socket for communicating with the server
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sf::UdpSocket socket;
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// Send a message to the server
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const char out[] = "Hi, I'm a client";
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if (socket.send(out, sizeof(out), server.value(), port) != sf::Socket::Done)
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return;
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std::cout << "Message sent to the server: " << std::quoted(out) << std::endl;
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// Receive an answer from anyone (but most likely from the server)
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char in[128];
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std::size_t received;
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std::optional<sf::IpAddress> sender;
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unsigned short senderPort;
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if (socket.receive(in, sizeof(in), received, sender, senderPort) != sf::Socket::Done)
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return;
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std::cout << "Message received from " << sender.value() << ": " << std::quoted(in) << std::endl;
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}
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