From 1ac4113b0d7998f027f83663d992265e33c1f076 Mon Sep 17 00:00:00 2001
From: schmelczerandras <andras@schmelzer.dev>
Date: Thu, 16 Jul 2020 22:32:56 +0200
Subject: [PATCH] Add timing

---
 frontend/src/scripting/drawing/renderer.ts |  7 +++++--
 frontend/src/scripting/helper/timing.ts    | 22 ++++++++++++++++++++++
 2 files changed, 27 insertions(+), 2 deletions(-)
 create mode 100644 frontend/src/scripting/helper/timing.ts

diff --git a/frontend/src/scripting/drawing/renderer.ts b/frontend/src/scripting/drawing/renderer.ts
index c6aa28d..d9e2c2c 100644
--- a/frontend/src/scripting/drawing/renderer.ts
+++ b/frontend/src/scripting/drawing/renderer.ts
@@ -1,4 +1,5 @@
 import * as twgl from 'twgl.js';
+import { TimeIt } from '../helper/timing';
 
 export class Renderer {
   private gl: WebGL2RenderingContext;
@@ -35,9 +36,11 @@ export class Renderer {
   }
 
   start() {
-    requestAnimationFrame(this.render.bind(this));
+    requestAnimationFrame(this.timedRender);
   }
 
+  private timedRender = TimeIt(this.render.bind(this), 240);
+
   private render(time: number) {
     const gl = this.gl;
 
@@ -58,6 +61,6 @@ export class Renderer {
     twgl.setUniforms(this.programInfo, uniforms);
     twgl.drawBufferInfo(this.gl, this.bufferInfo);
 
-    requestAnimationFrame(this.render.bind(this));
+    requestAnimationFrame(this.timedRender);
   }
 }
diff --git a/frontend/src/scripting/helper/timing.ts b/frontend/src/scripting/helper/timing.ts
new file mode 100644
index 0000000..70e9eab
--- /dev/null
+++ b/frontend/src/scripting/helper/timing.ts
@@ -0,0 +1,22 @@
+export const TimeIt = (func, interval = 60) => {
+  let i = 0;
+  let values = [];
+
+  return () => {
+    const start = performance.now();
+    func();
+    const end = performance.now();
+
+    values.push(end - start);
+    if (++i % interval == 0) {
+      values.sort();
+      console.log(
+        `${func.name}\n\tMax ${values[values.length - 1].toFixed(
+          2
+        )} ms\n\tMedian ${values[Math.floor(values.length / 2)].toFixed(2)} ms`
+      );
+
+      values = [];
+    }
+  };
+};