Hi!
I'm new on the forum, and have some experience on SFML. What a great library, thank you devs!
I have a problem. I'm trying to send a char from the client to the server over socket. I'm doing this via a key press. When I press a key from the client one time the server receives the key press (char) two times. What's wrong? Is it something to do with the thread? I have tried to figure this out, but I have no brains enough...
client:
while (window.isOpen()) {
sf::Event ev;
while (window.pollEvent(ev)) {
// Window closure
if (ev.type == sf::Event::Closed ||
(ev.type == sf::Event::KeyPressed &&
ev.key.code == sf::Keyboard::Escape)) {
window.close();
}
if (ev.type == sf::Event::KeyPressed) {
if (ev.key.code == sf::Keyboard::Right) {
char keyPressed = 'A';
if (socket.send(&keyPressed, sizeof(keyPressed)) == sf::Socket::Done)
std::cout << "sending A to server ";
}
}
}
engine.cpp (server)
void Engine::startServer()
{
port = 5000;
client.setBlocking(true);
std::cout << "Server started...\n";
if (listener.listen(port) != sf::Socket::Status::Done)
return;
std::cout << "- Server is listening to port " << port << std::endl;
networkThread = std::thread(&Engine::processIncomingData, this);
}
void Engine::processIncomingData(){
while (running) {
char receivedKeyCode;
size_t received;
// Accept client connection and setup...
sf::Socket::Status status = listener.accept(client);
if (status == sf::Socket::Done) {
std::cout << "Client connected: " << client.getRemoteAddress() << std::endl;
while (running) { // Loop to process key press data
sf::Socket::Status receiveStatus = client.receive(&receivedKeyCode, sizeof(receivedKeyCode), received);
if (receiveStatus == sf::Socket::Done) {
std::cout << "Received key code from client: " << receivedKeyCode << std::endl;
// Lock the mutex before accessing shared resources
std::lock_guard<std::mutex> lock(callbackMutex);
sf::Keyboard::Key pressedKey = static_cast<sf::Keyboard::Key>(receivedKeyCode);
if (receivedKeyCode == 'A') {
pressForward();
}
}
else if (receiveStatus == sf::Socket::Disconnected) {
std::cout << "Client disconnected: " << client.getRemoteAddress() << std::endl;
break;
}
}
}
}
}
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