SFML 2.0 -> SetPointColor(...)

[Orezar]

Hello,

I´m exporting my code from SFML 1.6 to SFML 2.0
(more Work than i thought ) but I have one Problem.
I saw that there is for sf::Shape and sf::RectangleShape no
SetPointColor function, I need this for my design.

Why this function don´t exist anymore, or I´m looking at
the false place? If it don´t exist anymore, can u Implement
it for SFML 2.0?

Sorry for my bad Englisch and thanks in advance!

[Nexus]

For simplicity, sf::Shape now only provides one color. If you need more flexibility, take a look at sf::Vertex and sf::VertexArray.

There have already been threads about this, use the search function...

[Orezar]

Is there no easier Way to do this with less code?

[Laurent]

Don't say it's not easy without trying it first

What kind of shapes do you need? Only rectangles?

[Orezar]

Yes, only for Rectangle...

[Laurent]

So it's even easier, you only have 4 vertices to define, no extra computation is needed.

Do you also need texturing and position/rotation/scale?

[Orezar]

Yes, I need position and maybe rotation, texture not necessarily...
So I need 4 Vertices Objects one Vertices Array and one RectangleShape?

[Laurent]

You can do this:

Code: [Select]

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

    void SetPointPosition(unsigned int i, const sf::Vector2f& position)
    {
        myVertices[i].Position = position;
    }

    void SetPointColor(unsigned int i, const sf::Color& color)
    {
        myVertices[i].Color = color;
    }

    ...

private:

    virtual void Draw(sf::RenderTarget& target, sf::RenderStates states) const
    {
        states.Transform *= GetTransform();
        target.Draw(myVertices, 4, sf::Quads, states);
    }

    sf::Vertex myVertices[4];
};

MyRectangle rect;
rect.SetPointPosition(...);
rect.SetPointColor(...);
...
window.Draw(rect);

[Orezar]

Thanks. Works perfectly

But I have still another problem, its because moving, how
can I make a function like GetFrameTime()?

Must I make a Clock Object that Restarts every Time the
Game Loop ends?

[Nexus]

Yes, you have to use a clock.

Code: [Select]

sf::Clock frameClock;
for (;;)
{
    // ...
    const sf::Time frameTime = frameClock.Restart();
}

[Laurent]

Must I make a Clock Object that Restarts every Time the
Game Loop ends?

Yes, you can do this.

[Orezar]

Ok, thanks. Can I ask why the GetFrameTime() Function was
kicked out from the Libary, I mean what is the Reason?

[Laurent]

http://www.sfml-dev.org/forum/viewtopic.php?t=6831

[Mikademus]

Very nice reply with the source code, Laurent. Might I suggest using this as example code in the wiki (is there a wiki?), perhaps an "making custom shape classes" article or something similar? I predict this question will arise quite a few times more.

[Laurent]

Could be a good idea (yes, there is a wiki ). But we should wait until SFML 2.0 is released, and we get more feedback, so that we can really see what kind of examples people need.

Maybe I'll cover this area in the tutorials as well.