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1

Graphics / view.move not smooth enough

« on: December 14, 2014, 08:58:02 am »

BTW, if the line below is commented out,  it will be fast enough:

window.setFramerateLimit(60);

-----------------------------------------------------

When navigating on the map, it is not smooth enough, especially when the resolution  of the view is high.
Any way to optimize? Thanks.

int main()
{
        sf::View view(sf::FloatRect(0, 0, 1280, 720));

        sf::Texture texture;
        texture.loadFromFile("world.png");

        sf::Sprite map(texture);

        sf::RenderWindow window(sf::VideoMode(640, 480), "test view");
        window.setFramerateLimit(60);

        // run the main loop
        while (window.isOpen())
        {
                // handle events
                sf::Event event;
                while (window.pollEvent(event))
                {
                        switch (event.type)
                        {
                        case sf::Event::Closed:
                                window.close();
                                break;
                        default:
                                break;
                        }
                }

                if (sf::Keyboard::isKeyPressed(sf::Keyboard::W))
                {
                        view.move(0, -4);
                }
                if (sf::Keyboard::isKeyPressed(sf::Keyboard::A))
                {
                        view.move(-4, 0);
                }
                if (sf::Keyboard::isKeyPressed(sf::Keyboard::S))
                {
                        view.move(0, 4);
                }
                if (sf::Keyboard::isKeyPressed(sf::Keyboard::D))
                {
                        view.move(4, 0);
                }

                window.clear();

                window.setView(view);
                window.draw(map);

                window.display();
        }

        return 0;
}
 

2

General discussions / After building the examples, at least 2 things to be done for an example

« on: December 10, 2014, 07:07:19 am »

Develop Environment:
    Visual Studio 2013
    Windows 7
    Debug

0. In project/property page/Debugging set Environment to ../../lib/Debug
1. copy the resource directory to the project directory if there is one

Why not to make it automatic?
Thanks.

3

Graphics / Does SFML support partially refresh/redraw?

« on: December 09, 2014, 05:45:44 pm »

In SFML 2.1, I only find the RenderWindow::clear(color) that clear the whole window, also the Window::display draw the whole window.

My question is that, does it support, for example, only draw the necessary area, e.g. a rect. I think it'll be much efficent then. This is very good for developing apps/boardgames etc.