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


int main()
{


	sf::RenderWindow window(sf::VideoMode(599, 490, 32), "Screen Menu");

	const float gravity = 1;
	int groundHeight = 440;
	sf::Vector2f velocity(sf::Vector2f(0,0));

	sf::RectangleShape rect(sf::Vector2f(20,20));
	rect.setPosition(0,0);
	rect.setFillColor(sf::Color::Red);

	float moveSpeed = 0.1f, jumpSpeed = 0.5f;


	while (window.isOpen()) {
		sf::Event event;

		while(window.pollEvent(event)) {
			switch (event.type) {

			case sf::Event::Closed:
				window.close();
				break;
			}
		}

		if(sf::Keyboard::isKeyPressed(sf::Keyboard::Right))
			velocity.x = moveSpeed;
		else if(sf::Keyboard::isKeyPressed(sf::Keyboard::Left))
			velocity.x = -moveSpeed;
		else
			velocity.x = 0;
		if (sf::Keyboard::isKeyPressed(sf::Keyboard::Up))
			velocity.y = -jumpSpeed;



		if(rect.getPosition().y + rect.getSize().y < groundHeight || velocity.y < 0)
		{
			velocity.y += gravity;
		}
		else
		{
			rect.setPosition(rect.getPosition().x, groundHeight - rect.getSize().y);
			velocity.y = 0;
		}
		rect.move(velocity.x, velocity.y);

		window.clear();
		window.draw(rect);
		window.display();

	}

}