From 07885a2b86c98ed650e836c2110aa192e936e811 Mon Sep 17 00:00:00 2001
From: Mitchell Hansen <mitchellhansen@Loaners-MacBook-Pro.local>
Date: Wed, 20 Jul 2016 22:17:19 -0700
Subject: [PATCH] Ported over the 'fix your timestep' game loop with the nifty
 C++11 chrono stuff

---
 cmake/.DS_Store => .DS_Store | Bin 6148 -> 6148 bytes
 .gitignore                   |   1 +
 src/.main.cpp.swp            | Bin 12288 -> 0 bytes
 src/main.cpp                 |  73 +++++++++++++++++++++++++++--------
 4 files changed, 57 insertions(+), 17 deletions(-)
 rename cmake/.DS_Store => .DS_Store (97%)
 create mode 100644 .gitignore
 delete mode 100644 src/.main.cpp.swp

diff --git a/cmake/.DS_Store b/.DS_Store
similarity index 97%
rename from cmake/.DS_Store
rename to .DS_Store
index 5008ddfcf53c02e82d7eee2e57c38e5672ef89f6..9a874b5768f336915163bb88cd434575b859f936 100644
GIT binary patch
delta 72
zcmZoMXfc?eJ=s8n#ekWin4yRvIi)x`Cn-Nahmipan4mOB0Eh(`pz<3Nm$6UQ6JguT
I&GC~T02$#9#Q*>R

delta 51
vcmZoMXfc?e&B4IH0LBv&MFg0D92j6^U=Y}txQu;b0oP;$5thx|96$L1$0-Qd

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..e43b0f9
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.DS_Store
diff --git a/src/.main.cpp.swp b/src/.main.cpp.swp
deleted file mode 100644
index 24e86fda14613ca3f7dd9f573575a78fdcce2709..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 12288
zcmeI2KW`H;6u@03G87POm5@xj+)2shN(SJXcA(HwDFH-9J0f%E=&U-nWjjO_6c$DX
zm>BsKzzTc-_z)}%d<dQ|e?%gtZV}JQ?;QJ{pPzr*>F#NIxZk5Uk~V>MiI7J3&C#!q
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z;`zWx=6TE6yft7#CAl#R32=x8(7@RY41K?ObCtBOZ=@l?di@%`a{2Mua^Wg8fCkV2
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z6MY)-XI%NjpBPTJwy5i8+1)UcWji6Zh@X$QFNNeZn$%{rlvUJtbvy~0Ev8k{Q21zW
zop28fS5X|(kQIK_NfO8Xu8?v^OKqc&r23a-dzN!mowJ%07EXB(&Q7a!(MFo2{n`CT
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diff --git a/src/main.cpp b/src/main.cpp
index d4bb06e..62c4782 100644
--- a/src/main.cpp
+++ b/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;
 
-int main(){
+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();
+}
 
-		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){
-								window.close();
-						}
-				}
+int main() {
+	elap_time();
+	std::mt19937 rng(time(NULL));
+	std::uniform_int_distribution<int> rgen(100, 400);
 
-				window.clear();
-				window.draw(shape);
-				window.display();
+	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;
+
+
+	while (window.isOpen()) {
+
+		sf::Event event;
+		while (window.pollEvent(event)) {
+			if (event.type == sf::Event::Closed)
+				window.close();
 		}
 
-		return 0;
+		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(sf::Color::Black);
+
+		window.display();
+
+
+
+	}
+	return 0;
+
 }