Topics

1

Network / Wrong data in packets.

« on: November 05, 2018, 08:18:18 am »

Im sending player ID in packet to client for him players table. Im checking my ID and sending it in Uint16 to client but he dont receive this... or receive a random data ;/ Code:
Server side when client join:

                        if (type == DOLACZENIE) // client send this when join
                        {
                                ++IDS;
                                it->second = IDS;
                                gracze[IDS].gra = true; // player with ID = IDS is now playing
                                Packet paccc;
                                Uint16 cos = IDS;
                                if (paccc << cos)
                                {
                                        WyslijPakiet(POLACZONO, paccc); // sending my paccc to client
                                        cout << "CONNECT: " << cos << endl;
                                }
                        }

Client receive:

                        if (type == POLACZONO) // get ID from serwer
                        {
                                Uint16 cos;
                                if (pac >> cos)
                                {
                                        cout << "ID in connect: " << cos << endl;
                                        packet >> cos;
                                }
                                else
                                {
                                        cout << "error in pac" << endl;
                                }
                        }

Output info in console:

CONNECT: 0
error in pac

2

Network / Get receive data in real time

« on: September 25, 2018, 08:08:18 pm »

I have problem with receive data in client side. I send to server info that player is connect and server make a new player in his vector and send another information to client with id player and coordinates. But i dont know how to receive that data. I tried a while loop but client is stop on this function with loop, i tried thread but thread dont work all the time ;/ Like if i send form server data then if just then thread working i get my data but otherwise i dont get info. How i have to receive data from serwer irrelevant what actualy function get focus from main?

3

Graphics / Delete sprite from vector

« on: September 12, 2018, 10:55:31 pm »

I want to delete sprite form my vector but all function dont work xd... and return this error:

I saw all topics with similar like my but any dont work for me ;/
Code:

void Weapon::Draw(RenderWindow &window, Map &m)
{
        iterator = 0;
        for (i = pociski.begin(); i < pociski.end(); i++)
        {
                pocisk = *i;
                pocisk.move(Velocity[iterator]);
                pociski[iterator] = pocisk;
                for (m.i = m.walls.begin(); m.i < m.walls.end(); m.i++)
                {
                        if (areColliding(pocisk, *m.i, 2))
                        {
                                // bullet touch wall
                                 pociski.erase(i);
                        }
                }
                window.draw(*i);
                iterator++;
        }
}
 

4

Graphics / Making SAT for rotation shape

« on: September 10, 2018, 11:13:34 pm »

Yo. Im writting a game in which player is shotting with computer bots. I have done movement player and collisions with "right" set wall rotation(0,90,180,270,360). But if change rotation of wall then algorithm for SAT doesnt work good like this on ss:
Work good:

And dont work good:


So if you saw, if i changed rotation then sat doesnt works good ;/ This algorithm isnt main. I get this form this film:
and code looks like this:

bool Player::Sat(const Sprite &sp1, const Sprite &sp2, Vector2f *out_mtv)
{               const FloatRect &rectSp1 = sp1.getGlobalBounds();
                const FloatRect &rectSp2 = sp2.getGlobalBounds();
                float proj_x, proj_y, overlap_x, overlap_y;

                // test overlap in x axis
                proj_x = max(rectSp1.left + rectSp1.width, rectSp2.left + rectSp2.width) - min(rectSp1.left, rectSp2.left);
                if (proj_x < rectSp1.width + rectSp2.width) {
                        if (out_mtv) {
                                // calculate mtv in x
                                overlap_x = rectSp1.width + rectSp2.width - proj_x;
                        }
                        // test overlap in y axis
                        proj_y = max(rectSp1.top + rectSp1.height, rectSp2.top + rectSp2.height) - min(rectSp1.top, rectSp2.top);
                        if (proj_y < rectSp1.height + rectSp2.height)
                        {
                                if (out_mtv)
                                {
                                        // calculate mtv in y
                                        overlap_y = rectSp1.height + rectSp2.height - proj_y;
                                        out_mtv->x = out_mtv->y = 0;

                                        // choose minimun overlap
                                        if (overlap_x < overlap_y) {
                                                out_mtv->x = overlap_x * (rectSp1.left < rectSp2.left ? -1 : 1);
                                        }
                                        else {
                                                out_mtv->y = overlap_y * (rectSp1.top < rectSp2.top ? -1 : 1);
                                        }
                                }
                                return true;
                        }
                }
                return false;
}
 

Im writing in sfml like 5 days and sat algorithm is too difficult ;/ Can you give me hint how i have change this code to get the perfect sat algorithm? I know i have to use .getTransform but its a bit difficult for me ;d