main.cpp

#include <SFML/Graphics.hpp>
#include <iostream>

int main()
{
    // Create the main window
    sf::RenderWindow app(sf::VideoMode(800, 600), "SFML window");

    // Load a sprite to display
    sf::Texture texture;
    if (!texture.loadFromFile("cb.bmp"))
        return EXIT_FAILURE;
    sf::Sprite sprite(texture);

    //for every test uncomment only one line
    //one line one test
    //sprite.setPosition( sprite.getGlobalBounds().width/2, sprite.getGlobalBounds().height/2 );//fully visible
    //sprite.setPosition( -app.getSize().x, -app.getSize().y );//fully invisible
    //sprite.setPosition( -sprite.getGlobalBounds().width/2, -sprite.getGlobalBounds().height/2 );//partially visible


    sf::Uint16 frame = 0;
    float frame_time = 0;
    sf::Time time;
    sf::Clock clock;
    // Start the game loop
    while (app.isOpen())
    {
        // Process events
        sf::Event event;
        while (app.pollEvent(event))
        {
            // Close window : exit
            if (event.type == sf::Event::Closed)
                app.close();
        }

        // Clear screen
        app.clear();

        // Draw the sprite
        //if fps is to high increase number of drew sprites
        for(int i=0; i<100; i++)
            app.draw(sprite);

        // Update the window
        app.display();

        time = clock.restart();
        frame_time +=time.asSeconds();
        frame++;
        std::cout<<"current = "<<1/time.asSeconds()<<" average = "<<frame/frame_time<<"\n";
    }

    return EXIT_SUCCESS;
}