From 78e1a54e8f0bfb6b2a0aaeef47a512248232e1ee Mon Sep 17 00:00:00 2001
From: Kevin Ngo <me@ngokevin.com>
Date: Tue, 9 Oct 2018 16:56:34 -0700
Subject: [PATCH] only load beats if challenge/difficulty changes

---
 src/components/beat-loader.js | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/components/beat-loader.js b/src/components/beat-loader.js
index 678366a..06d83ed 100644
--- a/src/components/beat-loader.js
+++ b/src/components/beat-loader.js
@@ -28,9 +28,13 @@ AFRAME.registerComponent('beat-loader', {
     this.el.addEventListener('cleargame', this.clearBeats.bind(this));
   },
 
-  update: function () {
-    if (!this.data.challengeId || !this.data.difficulty) { return; }
-    this.loadBeats();
+  update: function (oldData) {
+    const data = this.data;
+    if (!data.challengeId || !data.difficulty) { return; }
+    if (data.challengeId !== oldData.challengeId ||
+        data.difficulty !== oldData.difficulty) {
+      this.loadBeats();
+    }
   },
 
   /**