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Window / Smooth movement

« on: October 12, 2022, 03:42:15 pm »

Hello. I'm new to SFML and trying to move a circle without repeat delay. The problem is that circle only moves when I press the button, but it stops moving after that(ie it moves only one time, then I have to press the button again). It's weird though that if 'A' is pressed and I start moving cursor on the window the circle starts to move.

#include <SFML/Graphics.hpp>

int main()
{
    sf::RenderWindow window(sf::VideoMode(200, 200), "SFML works!");
    sf::CircleShape shape(100.f);
    shape.setPosition(50.0f, 50.0f);
    shape.setFillColor(sf::Color::Green);
    bool flag = false;
    window.setKeyRepeatEnabled(false);
    while (window.isOpen())
    {
        sf::Event evnt;
        while (window.pollEvent(evnt))
        {
            if (evnt.type == sf::Event::Closed) {
                window.close();
            }
            if (evnt.type == sf::Event::Resized) {
                sf::FloatRect visibleArea(0.f, 0.f, evnt.size.width, evnt.size.height);
                window.setView(sf::View(visibleArea));
            }
            if (evnt.type == sf::Event::KeyPressed) {
                if (evnt.key.code == sf::Keyboard::A) {
                    flag = true;
                }

            }
            if (evnt.type == sf::Event::KeyReleased) {
                if (evnt.key.code == sf::Keyboard::A) {
                    flag = false;
                }
            }
            if (flag) {
                sf::Vector2f movement;
                movement = shape.getPosition();
                movement.x += 5.0f;
                movement.y += 5.0f;
                shape.setPosition(movement);
            }
           
        }
        window.clear();
        window.draw(shape);
        window.display();
    }

    return 0;
}