Messages

1

Graphics / Re: Problem with sf::Text in a custom class

« on: March 20, 2019, 12:37:49 pm »

it is caused by the push_back call on the vector.

2

Graphics / Re: Problem with sf::Text in a custom class

« on: March 20, 2019, 12:20:14 pm »

So,
I changed my contructor to this:

TextItem(std::string text, int fontSize, sf::Font *font)

I can tell call it like this:
TextItem name(a, 20, font); where font = sf::Text *
where font is sf::Font _titleFont;
Still getting a bad_alloc exception.

I'm sorry to be such bother, I'm still learning how c++ really works

3

Graphics / Re: Problem with sf::Text in a custom class

« on: March 20, 2019, 10:31:13 am »

I also tried initialising a font inside the class

TextItem::TextItem(std::string fontPath, std::string text, int fontSize)
{
   _font.loadFromFile(fontPath);
   _text.setFont(_font);
   _text.setString(text);
}

But I still get an std::bad_alloc. I'm thinking of just having a reference to the font in the Core (where windows, events etc are initialized) and the referencing it when initializing text, but it's not very elegant. What do you think?

4

Graphics / Problem with sf::Text in a custom class

« on: March 19, 2019, 10:23:23 am »

Hello everyone,

For the needs of a school project, I need to create a menu using only the standard SFML that loads all the games in a directory and lets the user choose which one he wants to play. So I created a custom class that I called TextItem that holds a reference to the font used for the title (sf::Font) and the sf::Text that is going to be rendered on screen. I then add all the texts to a vector (std::vector<TextItem>) with a push_back. The problem is that when I try to run my game loop (code below), I get an invalid free() error.

This is the main loop code:

        //TextureItem menuBg("./assets/arcade_img.bmp");
        std::vector<std::string> gameNames = getGamesNames();
        std::vector<TextItem> gameTexts = getGamesTexts(gameNames);
        int baseText = 100;
        std::cout << "loaded " << gameTexts.size() << " titles" << std::endl;
        while (_window.isOpen()) {
                int event = this->HandleEvents();
                if (event == 1)
                        break;
                _window.clear();
                //_window.draw(menuBg.getSprite());
                // for (auto a: gameTexts) {
                //      _window.draw(a.getText());
                // }
                _window.display();
        }
        return "";

This is the constructor for the TextItem class:

TextItem::TextItem(std::string fontPath, std::string text, int fontSize, sf::Font font) : _font(font), _text(text, _font, fontSize)
{
}

This is the function getGamesTexts

std::vector<TextItem> getGamesTexts(std::vector<std::string> gameNames)
{
        std::vector<TextItem> res;
        sf::Font font;
        font.loadFromFile("./assets/gamesFont.ttf");
        int baseText = 100;
        for (auto a: gameNames) {
                std::cout << "a" << std::endl;
                TextItem name("./assets/gamesFont.ttf", a, 20, font);
                //name.setCoordinates(40, baseText);
                //res.push_back(name);
                std::cout << "added " << a << " to list" << std::endl;
                baseText += 30;
        }
        return res;
}

If I comment out the res.push_back part I get an invalid free error, if I leave it there I get a std::bad_alloc error.

I'm sorry if I'm too vague in my description, if any other detail is needed please let me know.

Thanks