Messages

1

SFML projects / SF Video Player

« on: September 08, 2010, 03:25:44 pm »

You should also post this to the wiki! http://www.sfml-dev.org/wiki/en/sources

2

General / Need help used separate void functions

« on: September 07, 2010, 07:53:14 am »

Code: [Select]


class Application
{
public:
   SpriteManager Spr_Mgr(); //Create Sprite Manager for Application
};


This is a function declaration. You are declaring a member function called Spr_Mgr that returns SpriteManager object. Get rid of the () to declare an object called Spr_Mgr of type SpriteManager.

You should also declare it private because you don't need to call it through an instantiated Application object, like in the main() function.

Code: [Select]


Application::Application()
{
   Spr_Mgr.LoadPictures(); //Load Pictures with Sprite Manager - ERROR, Spr_Mgr not recognized!!
}


This occurs due to the above mistake.

Code: [Select]


void Application::DrawStuff()
{
   Window.Draw(Image_1); //Display the Picture
}


You might want to read up on encapsulation and class access specifiers. You're trying to call the object Image_1 declared within the Application class. Your SpriteManager class would have to either have a member function that returns a reference or pointer to your Image_1 object or declare the Image_1 object as public and then call it like Spr_Mgr.Image_1.

Anyway, your SpriteManager class design won't work well in the long run because you will have a lot redundant code. There are readily available resource managers in the wiki you may want to take a look at: http://www.sfml-dev.org/wiki/en/sources.

/me waits for corrections from the experts.

3

General / Need help used separate void functions

« on: September 07, 2010, 02:28:33 am »

Use a class:

Code: [Select]

#include <SFML/Graphics.hpp>

class Application
{
private:
sf::RenderWindow Window;
sf::String Hello;

void DrawStuff();
public:
Application();
void Run();
};

Application::Application()
{
Window.Create(sf::VideoMode(326, 600), "Title");

Hello.SetText("Hello!");
Hello.SetColor(sf::Color(0, 128, 128));
Hello.SetPosition(100.f, 100.f);
Hello.SetSize(30.f);
}

void Application::DrawStuff()
{
Window.Draw(Hello);
}

void Application::Run()
{
while (Window.IsOpened())
    {
        sf::Event Event;
        while (Window.GetEvent(Event))
        {
            if (Event.Type == sf::Event::Closed)
                Window.Close();
        }
 
DrawStuff();

        Window.Display();
    }
}

int main()
{
Application Game;
Game.Run();

return 0;
}

I didn't test it so it might have some bugs, but you get the idea.

4

General / Using the Collision-Detection

« on: August 28, 2010, 04:52:27 pm »

Yeah, you could put all the sprites into a vector or list and where you check for collisions you would iterate through the container and check for collision for each sprite.

5

General / Is a function way efficient for playing a new game, if lose?

« on: August 27, 2010, 10:19:06 pm »

You need to elaborate a little more. Do you mean that is it a good practice to put all your game code inside a function (like runGame()) that you can call whenever you want to start a new game?

6

General / Small Problem

« on: June 29, 2010, 06:50:04 am »

Try disabling image smoothing. This seems to have been a problem for a number of people.

7

Network / Strange client outputs...

« on: June 28, 2010, 09:01:25 pm »

It's the c_str() that's appending the null termination:

c_str(): Generates a null-terminated sequence of characters (c-string) with the same content as the string object and returns it as a pointer to an array of characters.

A terminating null character is automatically appended.

http://www.cplusplus.com/reference/string/string/c_str/

You can use data() to return const char* string without null termination:

data(): Returns a pointer to an array of characters with the same content as the string.

Notice that no terminating null character is appended

http://www.cplusplus.com/reference/string/string/data/

And length() will return size_t length of the string.

So replace

Code: [Select]

mainSocket.Send(buffer.c_str(),sizeof(char) * (buffer.size() + 1));

With

Code: [Select]

mainSocket.Send(buffer.data(), buffer.length());