From 7a79c19c9825bbb9c9bf8c3f6ef5ea22fb98b34f Mon Sep 17 00:00:00 2001
From: Antoine <antoine.dupuis@etudiant.univ-rennes1.fr>
Date: Wed, 19 May 2021 19:08:09 +0200
Subject: [PATCH] added framerate control

---
 src/engine/Engine.java | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/engine/Engine.java b/src/engine/Engine.java
index 2855d5d..593aa05 100644
--- a/src/engine/Engine.java
+++ b/src/engine/Engine.java
@@ -151,11 +151,14 @@ public class Engine {
         smiley2.translate(new Vector3f(0.0f,0.0f,10.0f));
 
         long timer = System.currentTimeMillis();
+        long lastFrame = System.currentTimeMillis();
         int frame = 0;
+        boolean nextFrame = false;
 
         while(engine.isRunning()){
             // Game logic should fit here
             double time = glfwGetTime();
+            lastFrame = System.currentTimeMillis();
 
             smiley.translate(new Vector3f( (float) Math.sin(time), (float) Math.cos(time), 0.0f));
 
@@ -173,6 +176,11 @@ public class Engine {
                 frame = 0;
             }
 
+            while(!nextFrame){
+                nextFrame = System.currentTimeMillis() - lastFrame >= 16.66f;
+            }
+
+            nextFrame = false;
             if(engine.shouldClose()) engine.setRunning(false);
         }
     }