#include <SFML/Graphics.hpp>
#include <vector>
int main()
{
// create the window
sf::RenderWindow window(sf::VideoMode(800, 600), "My window");
std::vector <sf::Vertex> lines;
sf::Texture texture;
sf::Sprite sprite;
texture.create(800,600);
int mousedown = 0;
// run the program as long as the window is open
window.setFramerateLimit(30);
while (window.isOpen())
{
// check all the window's events that were triggered since the last iteration of the loop
sf::Event event;
while (window.pollEvent(event))
{
// "close requested" event: we close the window
if (event.type == sf::Event::Closed)
window.close();
else if ((event.type == sf::Event::MouseMoved) && (mousedown == 1))
{
lines.push_back(sf::Vertex(sf::Vector2f::Vector2(sf::Mouse::getPosition(window))));
}
else if (event.type == sf::Event::MouseButtonPressed)
{
mousedown = 1;
}
else if (event.type == sf::Event::MouseButtonReleased)
{
mousedown = 0;
texture.update(window);
lines.clear();
}
}
window.clear(sf::Color::Black);
window.draw(sprite);
window.draw(&lines[0], lines.size(), sf::LinesStrip);
sprite.setTexture(texture);
window.display();
}
return 0;
}