Messages

1

Graphics / Re: Sprite doesn't transform in an inherited class

« on: September 28, 2019, 09:24:08 am »

So i did write my own getGloabalBounds and it works good.
Thanks !

2

Graphics / Sprite doesn't transform in an inherited class

« on: September 27, 2019, 04:55:53 pm »

Hi Forum,
i faced a problem with my inherited class and sf::sprite.
I have a custom class, that inherits from sf::Drawable and sf::Transformable
Here it is:

class DrawableObject : public sf::Drawable,public sf::Transformable
{
public:
        DrawableObject();
        ~DrawableObject();
        bool loadImage(std::string);
        sf::FloatRect getFloatRect();

private:
        sf::Texture m_texture;
        sf::Sprite m_sprite;
        virtual void draw(sf::RenderTarget& target, sf::RenderStates states) const
        {
                states.transform *= getTransform();
                target.draw(m_sprite, states);
        }
};
 

It works quite fine...i can render and move as expected !
But now i wanted to implement collision. I read that sf::transformable has no getGlobalBounds() function so
i thought that i just use the getGlobalBounds method from my sprite(m_sprite), but every value from the position to the FloatRect is nonsense(doesnt fit the values directly obtained from my class) !

Is there a way i can apply every tranformation i made to the class also to the Sprite ?
Thanks

3

Audio / Re: sf::Sound nullptr problem with std::map

« on: September 02, 2019, 09:08:00 pm »

Big thank to you !
I should have known(because obviously a sf::SoundBuffer is quite large) that a push_back moved the content to other adress spaces !
I decided to store my buffers in an std::list and it works like a charme !
 

4

Audio / sf::Sound nullptr problem with std::map

« on: September 02, 2019, 06:02:12 pm »

Hi Forum,
so this is a rather complicated problem with sf::Sound.
I face a problem when i create a std::map with an std::string as the key-value and a sf::Sound as the second argument ! I know its not recommended to save an sf::Sound to container as it always needs to point to an sf::SoundBuffer ! But in my case i wanted to go with that solution so i created an std::vector that would store my sf::SoundBuffer ! Before i go on heres the Code:
Header(minimal example):

std::map <std::string, sf::Sound> Sounds;
std::vector<sf::SoundBuffer> soundBuffer;
 

So here are both map and vector !
Now the implementation from a function that stores a loaded sf::SoundBuffer in a Vector and an sf::Sound to
a Map
Implementation:

sf::SoundBuffer buffer;
if (buffer.loadFromFile(path))
                {
                        soundBuffer.push_back(buffer);
                        //sound_.setBuffer(soundBuffer.back());  
                        //Sounds.insert(std::pair<std::string, sf::Sound>(name, sf::Sound{soundBuffer.back()}));
                        Sounds.emplace(name, sf::Sound{ soundBuffer.back() });
                        return true;
                }
 

As you can see, i tried out a lot of things

So wheres now the problem ? When i try to play multiple sounds only the last one added is functioning.The other two(in my case i added 3 sounds as an wav) get nullptr(first screenshot).
And the sf::SoundBuffer Vector is perfectly working !
I have no idea what i did wrong(i think it isnt an out of scope problem, because it should be prevented through the Vector).
I hope u can help me !
Thanks