Messages

1

Feature requests / Re: Axis 9 and 10 for proper Xbox trigger support

« on: January 29, 2021, 05:13:00 pm »

May I dig up this topic to ask if anyone knows how to fix it without recompiling ?
As sf::Joystick::Axis is public, would it be possible to directly change the values or overwrite it ?
Thanks for your help

2

Graphics / Re: creating a texture through code

« on: January 14, 2021, 02:31:52 pm »

Indeed...

Thanks for your help jacmoe !

3

Graphics / Re: creating a texture through code

« on: January 14, 2021, 12:18:22 pm »

Thanks for your reply, Laurent.

I'm trying yo optimize fps in my game and realized my entire minimap took more than 16300 microseconds to draw with this code :

void Application::DrawMiniMap(){
    sf::RectangleShape rs;
    for(int i = 0; i < 100; i++) {
        for(int j = 0; j < 100; j++) {
                    rs.setPosition(2 * i, 2 * j);
                    rs.setSize(sf::Vector2f(2,2));
                    rs.setFillColor(img.tuile[game.carte.terrainType[i][j]].GetColor());
                    window.draw(rs);
        }
    }
}

I tried this code and it only takes about 300 microseconds now, but.. it doesn't work 

void Application::DrawMiniMap(){

    sf::Texture tx;
    tx.create(100,100);
    std::vector<sf::Uint8> image(100 * 100 * 4);

    for(int x = 0; x < 100; x++) {
        for(int y = 0; y < 100; y++) {
            image[(x + y * 100) * 4 + 0] = img.tuile[game.carte.terrainType[x][y]].GetColor().r;
            image[(x + y * 100) * 4 + 1] = img.tuile[game.carte.terrainType[x][y]].GetColor().g;
            image[(x + y * 100) * 4 + 2] = img.tuile[game.carte.terrainType[x][y]].GetColor().b;
            image[(x + y * 100) * 4 + 3] = img.tuile[game.carte.terrainType[x][y]].GetColor().a;
        }
    }

    // update texture:
    tx.update(image.data());
    sf::Sprite spt;
    spt.setPosition(576,24);
    spt.setTexture(tx);
    window.draw(spt);
}

EDIT : I forgot to texture.create() and now it perfectly works with only ~350 microseconds, thanks a lot Laurent

EDIT 2: As my minimap is 200x200 and not 100, it actually takes 1250 microseconds to draw the minimap this way. Do you know a way to optimize even more ?

4

Network / Re: Packets : Vector Transfers and sf::objects

« on: April 30, 2020, 11:53:03 am »

It seems std::map doesn't want me to send datas. This code compiles but the app shuts down at "packet << s1" :

inline sf::Packet& operator <<(sf::Packet& packet, const std::map<std::string,sf::Int16>& a)
{
    std::string s1;
    for(auto& x : a) {
        std::cout << x.first << std::endl ; // Works, displays the right string
        s1 = (std::string) x.first;  // I tried everything but
        packet << s1 ; // My app shuts down, packet << x.first doesn't work either
    }
    return packet;
}

Thank you again for your help

5

Network / Re: Packets : Vector Transfers and sf::objects

« on: April 29, 2020, 07:35:30 pm »

Hello, thank you for your answer.

I didn't try for vectors actually, only for maps.

My overload operator for vectors seems to work (I don't know how to use templates, I'll try someday) :

inline sf::Packet& operator <<(sf::Packet& packet, const std::vector<Plateforme>& p)
{
    packet << p.size();
    for(int i = 0; i < p.size();  i++) packet << p.at(i) ;
    return packet;
}
inline sf::Packet& operator >>(sf::Packet& packet, std::vector<Plateforme>& p)
{
    int n;
    Plateforme x;
    packet >> n;
    p.clear();
    for(int i =0; i < n ;i++) { packet >> x; p.push_back(x);}
    return packet;
}

But for maps, I get an error whenever I try to use an iterator in the function :

inline sf::Packet& operator <<(sf::Packet& packet, const std::map<std::string,int[20][2]>& a)
{
    std::map<std::string,int[20][2]>::iterator it = a.end(); // Get length of the map : ERROR
    // Rest of the code
}

Error : conversion from 'std::map<std::__cxx11::basic_string<char>, int [20][2]>::const_iterator {aka std::_Rb_tree_const_iterator<std::pair<const std::__cxx11::basic_string<char>, int [20][2]> >}' to non-scalar type 'std::map<std::__cxx11::basic_string<char>, int [20][2]>::iterator {aka std::_Rb_tree_iterator<std::pair<const std::__cxx11::basic_string<char>, int [20][2]> >}' requested|

Anyway I'm not sure this is related to SFML. But this works normally outside the overload operator.

Anyway, thanks for your help !

6

Network / Packets : Vector Transfers and sf::objects

« on: April 29, 2020, 03:54:26 pm »

Hello,

I feel like I'm  kind alone on this forum but I still try

I have two question :

1- Is it possible to send a structure (or whatever) with vectors in it by packet >> ?
Like this :

typedef struct BMMaps BMMap;
        struct BMMaps
        {
            std::string nom = "Map par défaut" ;
            int background = 0;
            std::vector<Plateforme> plateformes;

        };
inline sf::Packet& operator <<(sf::Packet& packet, const BMMap& m)
{
    return packet << m.nom << m.background << m.plateformes ;
}
inline sf::Packet& operator >>(sf::Packet& packet, BMMap& m)
{
    return packet >> m.nom >> m.background >> m.plateformes ;
}
 

This doesn't work of course, and when I try to send the size of the vector then every element in it with a for(i=0; i < myVector.size() ; i++) , it gives me an error as well .

2- Is it possible to send sf::objects in packet ?
I'd like to send a lot of sf::RectangleShape , or CircleShape, but this :

sf::RectangleShape r;
sf::Packet p << r;
 

doesn't work. I mean, I guess sfml made its own packet object compatible with its own others objetcs ?


Thanks for your help,

Cya

7

Network / Non-blocking UDP socket doesn't receive any data

« on: April 20, 2020, 09:33:27 am »

Hi, I'm wondering why when I put my socket in non-blocking I don't receive anything ?

When I send data to this socket, the following code works :

broadcastSocket.setBlocking(true);
            broadcastSocket.bind(52001);
            if(broadcastSocket.receive(udpp,ip,port) == sf::Socket::Done)
            cout << "Data received" << endl;

but this one doesn't :

broadcastSocket.setBlocking(false);
            broadcastSocket.bind(52001);
while(1)
{
            if(broadcastSocket.receive(udpp,ip,port) == sf::Socket::Done)
            cout << "Data received" << endl;
}

Thanks for your help !