Topics

1

Network / Receiving data

« on: December 18, 2017, 06:07:04 pm »

I'm trying to learn sfml network, but there are so few example, and even if I find some, those are wrong or just weird.
For example, this code:
https://github.com/SFML/SFML/wiki/Source:-Network-Chat-Example
seems okay, but in the DoStuff thread, the

Code: [Select]

sf::Packet packetSend;
globalMutex.lock();
packetSend << msgSend;
globalMutex.unlock();

socket.send(packetSend);part constantly sending(spamming) data and it's eats a ton of processing power, however if I delete that part, then the socket.receive(packetReceive); simply won't run, even if I send data, from another client.

Why is that?
Can someone give me a good source code for client-server game program? (I don't mind if it complex)
I think I already know the basics theory, but that would be great, if someone share with me a good free article, book or video about sfml network.

I hope it's something obvious thing (just not for me )

2

General / A noob can't handle lists

« on: November 26, 2017, 04:12:43 pm »

I have a Wall Class, and I store them in a list:
std::list<Wall> walls;

But when I add a wall like:

Code: [Select]

texture.loadFromFile("wall.png");
walls.push_back(Wall(texture, 500.f, 490.f, 4)); //arguments: texture, position X, postion Y, direction 4 = down
Then it's works, but the texture shown like it would be a nullptr. (So it's a white rectangle)
I draw it the walls this way:

Code: [Select]

for (Wall const &wal : walls)
wal.draw(window);
But if I add another wall to the list, then the first one is appear fine, but the second one is white, like:


And if I add different textured walls like:

Code: [Select]

texture.loadFromFile("wall.png");
walls.push_back(Wall(texture, 500.f, 490.f, 4));
walls.push_back(Wall(texture, 563.f, 490.f, 4));
walls.push_back(Wall(texture, 626.f, 490.f, 4));
walls.push_back(Wall(texture, 500.f, 600.f, 4));
walls.push_back(Wall(texture, 563.f, 600.f, 4));
walls.push_back(Wall(texture, 626.f, 600.f, 4));

texture.loadFromFile("wall2.png");
walls.push_back(Wall(texture, 720.f, 540.f, 0));

then 6. (the one before texture changes) will be corrupted:



I spend about 6 days of free time to figure out what could be the problem, and so far I managed to identify that the poblem is with my list, but I don't know what.

Because, if I create walls without adding to the a list, and draw them, then everything works, as intended.
(Of course I tried vectors , arrays, and so on, but I thing it would be reasonable to store them in a list)

The entire source code could be found at my GitHub: https://github.com/Kerachi/Kerachi

Any idea?

3

General / text.setColor declared deprecated

« on: November 23, 2017, 09:47:36 pm »

Hi everyone!

It worked perfectly in CodeBlocks, but I keep getting this error in Visual Studio:


Any idea what am I doing wrong?

4

Graphics / One Big Image VS Lot Little

« on: November 12, 2017, 08:05:22 pm »

Hi everybody!

I'm pretty new to SFML, but I like it so far, and I would like to ask about that, should I use one big image and slice it, or use lot but little images as texture?

For example:
One big PLAYER.png file, but it contains all moves and animations, VS lot little png files, like:
player_animaton 1.png
player_animaiton 2.png
player_animaiton 3.png
...
and store them in a vector or list, like:  std::vector<sf::Image> ...

I thought store the player moves and acts in lot but little images is better organized, but whenever I see a tutorial everyone use the one big image mode 

Like:
Texture.loadFromFile("player.png", sf::IntRect(X_beginning, Y_beginning, X_end, Y_end));

But it seem slow to me, I do like better this way:
Texture.update(imageList[currentImage]);

//imageList is a vector which contains, the already readed images...
//currentImage is a number, which is the next frame...
/*btw, I don't know the difference between Texture.update() and Texture.loadFromImage(), but I assume the update is faster */

I'm not sure what's wrong with this mode, is it slow, or is it better? Why no one use it? Or if I try to make a game like diablo 2, then should I use 3D models, instead?

Sorry for the lot questions, but I'm not sure, I'm in the right way