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C-/C++-Quelltext

#include <SFML/Graphics.hpp>
#include <string>
#include <sstream>

using std::string;
using std::stringstream;

const int LOGIC_FPS = 100;
const int TIME_BETWEEN_UPDATES = 1000 / LOGIC_FPS;
const int BOX_MOVEMENT = 500 / LOGIC_FPS; // 500 Pixel per Sekunde

string FloatToStr( float f )
{
    stringstream ss;
    ss << f;
    return ss.str();
}

int main()
{
    sf::RenderWindow window( sf::VideoMode( 800, 600 ), "SFML-Window" );
    sf::Event event;
    const sf::Input& input = window.GetInput();

    sf::Image image;
    image.Create( 50, 50 , sf::Color( 0, 0xAA, 0xFF ) );
    sf::Sprite box( image );
    box.SetPosition( 375, 275 );

    sf::Text boxCoords;

    sf::Clock clock;
    unsigned int updateTime = clock.GetElapsedTime();


    while( window.IsOpened() )
    {
        while( clock.GetElapsedTime() > updateTime )
        {
            while( window.PollEvent( event ) )
            {
                if( event.Type == sf::Event::Closed )
                    window.Close();

            }

            if( input.IsKeyDown( sf::Key::Left ) )
                box.Move( -BOX_MOVEMENT, 0 );
            if( input.IsKeyDown( sf::Key::Right ) )
                box.Move( BOX_MOVEMENT , 0 );
            if( input.IsKeyDown( sf::Key::Up ) )
                box.Move( 0, -BOX_MOVEMENT );
            if( input.IsKeyDown( sf::Key::Down ) )
                box.Move( 0, BOX_MOVEMENT );
            
            boxCoords.SetString( string( "box.x = " ) + FloatToStr( box.GetPosition().x ) +
                    string( " box.y = " ) + FloatToStr( box.GetPosition().y ) );

            updateTime += TIME_BETWEEN_UPDATES;
        }

        window.Clear();
        window.Draw( box );
        window.Draw( boxCoords );
        window.Display();
    }
}