Ported over the 'fix your timestep' game loop with the nifty C++11 chrono stuff

.gitignore

@@ -0,0 +1 @@
+.DS_Store

src/main.cpp

@@ -1,26 +1,65 @@
-#include <iostream>
+#include <SFML/Window.hpp>
 #include <SFML/Graphics.hpp>
+#include <iostream>
+#include <chrono>
+#include <random>
+
+const int WINDOW_X = 600;
+const int WINDOW_Y = 800;
+
+float elap_time(){
+	static std::chrono::time_point<std::chrono::system_clock> start;
+	static bool started = false;
+
+	if (!started){
+		start = std::chrono::system_clock::now();
+		started = true;
+	}
+
+	std::chrono::time_point<std::chrono::system_clock> now = std::chrono::system_clock::now();
+	std::chrono::duration<double> elapsed_time = now - start;
+	return elapsed_time.count();
+}
+
+int main() {
+	elap_time();
+	std::mt19937 rng(time(NULL));
+	std::uniform_int_distribution<int> rgen(100, 400);
 
-int main(){
+	sf::RenderWindow window(sf::VideoMode(WINDOW_X, WINDOW_Y), "SFML");
 
+	float step_size = 0.005f;
+	double frame_time = 0.0, elapsed_time = 0.0, delta_time = 0.0, accumulator_time = 0.0, current_time = 0.0;
 
-		sf::RenderWindow window(sf::VideoMode(300, 300), "SFML");
-		sf::CircleShape shape(10.0f);
-		shape.setFillColor(sf::Color::Green);
 
 	while (window.isOpen()) {
+
 		sf::Event event;
-				while (window.pollEvent(event)){
-						if (event.type == sf::Event::Closed){
+		while (window.pollEvent(event)) {
+			if (event.type == sf::Event::Closed)
 				window.close();
 		}
+
+		elapsed_time = elap_time();
+		delta_time = elapsed_time - current_time;
+		current_time = elapsed_time;
+		if (delta_time > 0.02f)
+			delta_time = 0.02f;
+		accumulator_time += delta_time;
+
+		while ((accumulator_time - step_size) >= step_size) {
+			accumulator_time -= step_size;
+
+			// Update(step_size);
 		}
 
-				window.clear();
-				window.draw(shape);
+		window.clear(sf::Color::Black);
+
 		window.display();
 
-		}
 
+
+	}
 	return 0;
+
 }