Messages

1

Graphics / Re: Obtaining a sf::Sprite value thanks to a pointer

« on: April 08, 2012, 02:30:16 pm »

Ok, I finally managed to solve it
Thank you so much, what an honor to be help by a SFML developer 

2

Graphics / Re: Obtaining a sf::Sprite value thanks to a pointer

« on: April 05, 2012, 11:20:15 pm »

You're a genius!! Thank you so much, I'm struggling with it since yesterday!
But my addSprite() function only accepts Personnage type class. It means that I can't register any object unless it is a Personnage class.

void addSprite(Personnage *joueur);

You talked about inheriting from an Entity class with a draw() function. What did you mean? I don't see how I could use a parent class to accept any type of object. I confess I have some gaps in C++, which can be quite penalizing...

3

Graphics / Re: Obtaining a sf::Sprite value thanks to a pointer

« on: April 05, 2012, 09:40:38 pm »

I think I understood what you mean. Consequently, I tried to directly create a Personnage entity when I use the function addSprite() :

drawing1.addSprite(new Personnage);

The only problem is that I can't make understand to Drawing::drawFrame() function that sf::Sprite has a function called GetSprite().

void Drawing::drawFrame()
{
    for(i=0; i<drawTable.size(); i++)
    {
        m_app->Draw(*drawTable[i].getSprite());
    }
    i = 0;
}

Tell me if you don't understand what I did. For my part, I do have a headache just looking at this piece of code 

4

Graphics / Re: Obtaining a sf::Sprite value thanks to a pointer

« on: April 04, 2012, 10:41:50 pm »

Oh, yeah, I see what you mean. I confess I'm powerless now, how could I manage to keep a "permanent" value returned by GetSprite() ? I do think you're right, it would entirely explain my error message.

5

Graphics / Re: Obtaining a sf::Sprite value thanks to a pointer

« on: April 04, 2012, 10:17:22 pm »

eXpl0it3r : that's it, m_app is actually a pointer on the sf::RenderWindow. In fact, I created a "Drawing" class that draws all the elements of the scene. To that extent, I had to create a pointer on app to be able to Draw the Sprites easily.
Here is the implementation code :

class Drawing
{
    public:
        Drawing(sf::RenderWindow *app);
        void addSprite(sf::Sprite *sprite); //Ajouter un sprite en liste
        void drawFrame(); //Placer tous les sprites contenus

    private:
        std::vector<sf::Sprite*> drawTable;
        int i;
        sf::RenderWindow *m_app;
        int ordreY;
};

Laurent : Sure, I use it in main(), each time I have to add a sprite in the scene :

int main()
{
    RenderWindow app(VideoMode(800, 600, 32), "RPG Test");

    Drawing drawing1(&app); //Moteur graphique
    Personnage joueurP;
    drawing1.addSprite(& joueurP.GetSprite());
...
}

6

Graphics / Obtaining a sf::Sprite value thanks to a pointer

« on: April 04, 2012, 09:37:28 pm »

Hi everyone.
For some reason that would be long to explain, I've got an array filled with pointers, all pointing on a Sprite address. Now I have to Draw() theses Sprites thank to a loop. Everything seems alright, but when I run the code, here is the horrible message delivered by the programme :



Here is the part of the code dealing with it :

std::vector<sf::Sprite*> drawTable; //The array containing pointers
 

//The function that allows to add Sprites addresses in the array
void Drawing::addSprite(Sprite *sprite)
{
    drawTable.push_back(sprite);
}

//The function that allows to display all the sprites
void Drawing::drawFrame()
{
    for(i=0; i<drawTable.size(); i++)
    {
        m_app->Draw(*drawTable[i]); //Here is the line causing the crash !
    }
    i = 0;
}

The doc informs me that the Draw() function prototype is that one :
virtual void sf::RenderTarget::Draw(const Drawable & Object) [virtual]

I confess I'm a bit lost. I don't feel at ease with this concept of virtual function or else... Some one may give me some help?
Thanks for reading me, and have a good day !