shooting algorithm

unsigned int width = 500;
unsigned int height = 500;
float mouseY;
float mouseX;
float distanceX;
float distanceY;
int increaser = 0;
float k_value;
bool shooting = false;

int main()
{
    sf::RenderWindow window(sf::VideoMode(width, height), "In progress");
    window.setFramerateLimit(60);

    sf::RectangleShape player(sf::Vector2f(30, 30));
    player.setFillColor(sf::Color::Magenta);
    player.setOrigin(30 / 2, 30 / 2);
    player.setPosition(width / 2, height / 2);

    sf::RectangleShape projectile(sf::Vector2f(5, 5));
    projectile.setFillColor(sf::Color::Cyan);

    bool gameOver = true;
    sf::Event event;
    while (window.isOpen() && gameOver)
    {

        while (window.pollEvent(event))
        {
            if (event.type == sf::Event::Closed)
            {
                window.close();
            }

            if (event.type == sf::Event::MouseButtonPressed)
            {
                if (event.mouseButton.button == sf::Mouse::Left && shooting == false)
                {
                    mouseX = event.mouseButton.x;
                    mouseY = event.mouseButton.y;
                    cout << "Mouse X: " << mouseX << endl;
                    cout << "Mouse Y: " << mouseY << endl;

                    distanceX = mouseX - player.getPosition().x;
                    distanceY = player.getPosition().y - mouseY;
                    cout << "Distance X: " << distanceX << endl;
                    cout << "Distance Y: " << distanceY << endl;

                    k_value = distanceY / distanceX;
                    cout << k_value << endl;

                    shooting = true;
                }
            }
        }

        if (shooting)
        {
            increaser += 5;
                if(distanceX > 0)
                    projectile.setPosition(player.getPosition().x + increaser, player.getPosition().y - (increaser * k_value));
                else if(distanceX <= 0)
                    projectile.setPosition(player.getPosition().x - increaser, player.getPosition().y + (increaser * k_value));

                if (increaser > abs(distanceX))
                {
                    shooting = false;
                    increaser = 0;
                    projectile.setPosition(-10, -10);
                }
        }

        if (sf::Keyboard::isKeyPressed(sf::Keyboard::W))
            player.move(0, -3);
        if (sf::Keyboard::isKeyPressed(sf::Keyboard::A))
            player.move(-3, 0);
        if (sf::Keyboard::isKeyPressed(sf::Keyboard::S))
            player.move(0, 3);
        if (sf::Keyboard::isKeyPressed(sf::Keyboard::D))
            player.move(3, 0);

        window.clear(sf::Color::White); //Clear

        window.draw(player);
        window.draw(projectile);

        window.display(); //Display
    }

    window.draw(projectile);

    window.close();

    int pause; cin >> pause;
    return 0;
}