Jumping and Gravity

#include "pch.h"
#include <iostream>
#include <SFML/Graphics.hpp>
#include <SFML/Window.hpp>
#include <vector>

using namespace std;
int width = 800;
int height = 600;


int main()
{
	sf::RenderWindow window(sf::VideoMode(width, height), "In Development");
	window.setFramerateLimit(70);
	window.setVerticalSyncEnabled(true);

	sf::RectangleShape player; //I WENT IN AND CHANGED A BIT OF THE CODE IN THIS CLASS RESTORE IT LATER ON
	player.setPosition(width / 2, height / 2);
	player.setSize(sf::Vector2f(50, 50));
	player.setFillColor(sf::Color::Cyan);
	sf::Vector2f velocity(0, 0);
	float gravity = .4;

	sf::Time time = sf::seconds(0);
	sf::Clock clock;
	bool truth = false;
	bool increase_downward_acceleration = false;

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

			if (event.type == sf::Event::KeyPressed)
			{
				if (event.key.code == sf::Keyboard::Space)
				{
					if (player.getPosition().y > (height/2) - 200)
					{
						truth = true;
						increase_downward_acceleration = false;
					}
				}
				if (event.key.code == sf::Keyboard::Right)
				{
					velocity.x = 3;
				}
				else if (event.key.code == sf::Keyboard::Left)
				{
					velocity.x = -3;
				}
			}
		}

		//Handle inputs

		if (player.getPosition().y <= (height / 2) - 200)
		{
			increase_downward_acceleration = true;
			truth = false;
		}
		else if (truth == true)
		{
			velocity.y = -7;
			increase_downward_acceleration = false;
		}

		cout << player.getPosition().y << endl;

		if (increase_downward_acceleration)
			velocity.y += gravity;

		if (player.getPosition().y >= (height / 2) + 50 && truth == false)
		{
			velocity.y = 0;
			velocity.x = 0;
		}

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

		player.move(velocity);
		window.draw(player);

		window.display(); //Display
	}

	int pause; cin >> pause; //Pause the program
	return 0;
}