Messages

1

Network / Question about Socket Selector and UDP sockets

« on: October 24, 2015, 02:43:33 am »

I've started diving into the magic world of networking in SFML. All is fine, I got a nice UDP server and client to run. However, I read on the sfml tutorials about the socket selector class, and I started to ask myself questions. Does my server, which is one UDP socket, have to store each client as a seperate socket, or would I store the IP addresses to know who is who?

Server code (receiving and sending. very simple atm)

while (running)
        {
                if (selector.wait())
                {
                        if (selector.isReady(socket))
                        {
                                sf::IpAddress rec;
                                unsigned short rPort;
                                sf::Packet packet;

                                socket.receive(packet, rec, rPort);

                                std::cout << "Recieved a packet from: " << rec.toString() << " " << rPort << std::endl;
                                std::string x;
                                packet >> x;
                                std::cout << "Packet:[ " << x << " ]" << std::endl;
                        }

                }
        }

as you can see, im using socket selector, but I'm thinking it's pointless.

2

General / Re: Help with camera movement from keyboard

« on: October 22, 2015, 11:27:56 pm »

Oh yeah, I didn't think about that. That would be the fastest and easiest way to solve my problem for now. Thanks

edit: new code: thought of  a way to do it without a 3rd condition

        int hor = 0;
        int ver = 0;

       
        if (sf::Keyboard::isKeyPressed(sf::Keyboard::W))
        {
                ver = 1;
        }
         if (sf::Keyboard::isKeyPressed(sf::Keyboard::S))
        {      
               
                ver--;
        }

        if (sf::Keyboard::isKeyPressed(sf::Keyboard::D))
        {
                hor = 1;
        }
        if (sf::Keyboard::isKeyPressed(sf::Keyboard::A))
        {
                hor--;
        }

3

General / Help with camera movement from keyboard

« on: October 22, 2015, 11:13:03 pm »

My camera movment works, however, if I hold the the 'S' key (down) it will move the camera down as i want to, but then if I hold 'W' after holding 'S' it will always go up. I tried many ways to fix this, all were not working and just confusing. Can you guys help me improve this code?

        extern float deltaTime;

        int hor = 0;
        int ver = 0;

       
        if (sf::Keyboard::isKeyPressed(sf::Keyboard::W))
        {
                ver = 1;
        }
         else if (sf::Keyboard::isKeyPressed(sf::Keyboard::S))
        {      
                ver = -1;
        }

        if (sf::Keyboard::isKeyPressed(sf::Keyboard::A))
        {
                hor = -1;
        }
         else if (sf::Keyboard::isKeyPressed(sf::Keyboard::D))
        {
                hor = 1;
        }
       


        if (hor != 0 || ver != 0)
                view.move(speed * hor * deltaTime, speed * -ver * deltaTime);
                //y value is inverted, camera works with +y being down and -y being up

hor is a number to store the direction in the horizontal axis.
ver is a number to store the direction in the vertical axis.