Messages

1

General / Re: Moving sf::Text using setPosition inconsistent amounts

« on: August 06, 2014, 09:53:14 pm »

Thank you for taking the time to get back to me, I really appreciated it.  I made the change and it works now.

Now, to understand this correctly, when I am setting the position, it sets the position of the origin?  But, getLocalBounds() returns the bounding box of the string text within the sf::Text?  The top left coordinates of this local bounds is therefore NOT the origin of the sf::Text?  How are these local bounds calculated?  Are they changing every time the string of the text changes?  I'm sure there is a reason, so why is the top left of the bounding box not at the origin?

Edit: Upon closer look at the documentation I see that there is also a getPosition() function which I assume then get's the global origin.  Another solution to the two above would then be: txtMovable.getPosition().y - 10.

2

General / Moving sf::Text using setPosition inconsistent amounts

« on: July 31, 2014, 08:29:44 pm »

Hello, I am trying to dynamically position a sf::Text up and down based on keyboard input.  The problem is, when I set the position by incrementing its location, I get different values of movement when I move it up or down even if I increment/decrement by the same amount.  Here is a simple version:

#include <SFML/Graphics.hpp>

int main()
{
    sf::RenderWindow window(sf::VideoMode(500, 500), "Move Text Test");
        sf::Font fontMovable;
        fontMovable.loadFromFile("arial.ttf");

        sf::Text txtMovable;
        txtMovable.setFont(fontMovable);
        txtMovable.setString("Testing");
        txtMovable.setColor(sf::Color::White);
        txtMovable.setCharacterSize(20);

    while (window.isOpen())
    {
        sf::Event event;
        while (window.pollEvent(event))
        {
            if (event.type == sf::Event::Closed)
                window.close();
                        if (event.type == sf::Event::KeyPressed)
                if(event.key.code==sf::Keyboard::Up){
                                        txtMovable.setPosition(txtMovable.getGlobalBounds().left, txtMovable.getGlobalBounds().top - 10);
                                }else if(event.key.code==sf::Keyboard::Down){
                                        txtMovable.setPosition(txtMovable.getGlobalBounds().left, txtMovable.getGlobalBounds().top + 10);
                                }
        }
        window.clear();
        window.draw(txtMovable);
        window.display();
    }
    return 0;
}
 

As you can see, I increment by 10, but when I move the sf::Text up, it actually goes up by 5 and going down actually goes down by 10.  These numbers change based on the size of the font.  I know there is probably something I am not understanding about the getGlobalBounds().

I am using SFML 2.1 and Visual C++ Express 2010.

Any help would be appreciated.   Thanks.

3

Network / Re: SocketSelector within gameloop

« on: January 25, 2014, 06:19:05 am »

Thanks Azaral, I was hoping to avoid multi-threading.  I haven't really done multi-threading before but I guess I'll have to bite the bullet and figure it out.

4

Network / SocketSelector within gameloop

« on: January 25, 2014, 01:12:22 am »

I don't want to have a separate program for client and server so I have made my main game loop with a switch that determines if the process is running in server or client mode.  The rest of the game is, of course, the same.  The problem is that the SocketSeletor::Wait() on the server portion blocks the program flow. 

What I have done is set the timeout to very low, I think 20 milliseconds, which allows my server process to run fine at 30fps.  My game isn't processor intensive and so I won't have to worry about slowing the framerate that way.  Is this an appropriate way to solve this problem?  If I'm making a game in the future that can't wait around 20 milliseconds, what should I do?  Is there a lower limit on this?  Can I wait just 1 millisecond?

Thanks.