#include <SFML/Graphics.hpp>
#include <bits/stdc++.h>
using namespace sf;
using namespace std;

int main(){
     RenderWindow renderWindow(sf::VideoMode(800, 500), "SFML works!");
        Event event;
        Color color(Color::Red);

        RectangleShape line(Vector2f(250,2));
        line.setPosition(450,140);
        float angle= 1.0f;


        srand(time(NULL));
        while(renderWindow.isOpen()){
            while(renderWindow.pollEvent(event)){
                if(event.type == Event::Closed) renderWindow.close();
                if(event.type == Event::KeyPressed){
                    switch(event.key.code){
                    case Keyboard::Add:
                        line.rotate(angle);
                        break;
                    case Keyboard::R:
                        line.rotate(-angle);
                        break;
                    case Keyboard::Up:
                        line.move(0.0f,-2.0f);
                        break;
                    case Keyboard::Down:
                        line.move(0.0f,2.0f);
                        break;
                    case Keyboard::Left:
                        line.move(-2.0f,0.0f);
                        break;
                    case Keyboard::Right:
                        line.move(2.0f,0.0f);
                        break;
                    }
                }

            }
            renderWindow.clear(color);
            renderWindow.draw(line);
            renderWindow.display();

        }

   return 0;
}