Messages

1

Graphics / Re: Can't get vertex array to draw when I use a class

« on: June 22, 2013, 01:26:54 am »

Ah I see now, I tried calling every m_verticies as you did but it didn't work because I forgot to call it again.

Thanks for the help

2

Graphics / Re: Can't get vertex array to draw when I use a class

« on: June 21, 2013, 10:06:18 pm »

Ah I thought that might be the case.

I tried replacing the  m_vertices with triangles but it doesn't seem to work, I'm a bit of a newbie with this stuff don't suppose you could quickly amend my code so I can see how it should be done?

3

Graphics / Can't get vertex array to draw when I use a class

« on: June 21, 2013, 03:05:29 am »

I'm very sure this is a very simple answer but i'm still trying to get to grips with things.

What i'm trying to do is just make a class where I define a triangle and then I want to draw that class to the window. I have been following the tutorial and i'm currently as the bit where it shows the particle example, hence why some of the code is copy pasted.

When I run it I just get a black screen and i'm really not sure why.

#include <SFML/Graphics.hpp>
#include "Event.hpp"
#include "Transformable.hpp"
#include "Transform.hpp"

class test : public sf::Drawable , public sf::Transformable
{

public:

        void triangles()
        {
                        // create an array of 3 vertices that define a triangle primitive
        sf::VertexArray triangle(sf::Triangles, 3);

        // define the position of the triangle's points
        triangle[0].position = sf::Vector2f(10, 10);
        triangle[1].position = sf::Vector2f(100, 10);
        triangle[2].position = sf::Vector2f(100, 100);

        // define the color of the triangle's points
        triangle[0].color = sf::Color::Red;
        triangle[1].color = sf::Color::Blue;
        triangle[2].color = sf::Color::Green;



        }

private:

    virtual void draw(sf::RenderTarget& target, sf::RenderStates states) const
    {
        // apply the entity's transform -- combine it with the one that was passed by the caller
        states.transform *= getTransform(); // getTransform() is defined by sf::Transformable

        // apply the texture
        states.texture = NULL;

        // you may also override states.shader or states.blendMode if you want

        // draw the vertex array
        target.draw(m_vertices, states);
    }

    sf::VertexArray m_vertices;

};



int main()
{
    sf::RenderWindow window(sf::VideoMode(800, 600), "My window",sf::Style::Default);

    // run the program as long as the window is open
    while (window.isOpen())
    {
        // check all the window's events that were triggered since the last iteration of the loop
        sf::Event event;
        while (window.pollEvent(event))
        {
            // "close requested" event: we close the window
            if (event.type == sf::Event::Closed)
                window.close();
        }
       
                test shape;
                window.draw(shape);
                window.display();
        }
        return 0;
}

 

I'm sure there is lots wrong with this but i'm still new so any help would be appreciated, thanks.