From 69f0273dea4f905c048cc393d3d79407f4da44ea Mon Sep 17 00:00:00 2001
From: samreid <reids@colorado.edu>
Date: Wed, 12 Dec 2018 16:00:43 -0700
Subject: [PATCH] Reset timer and pause when changing scenes, see
 https://github.com/phetsims/wave-interference/issues/231

---
 js/waves/model/WavesScreenModel.js | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/js/waves/model/WavesScreenModel.js b/js/waves/model/WavesScreenModel.js
index 4453f2da..84deffdb 100644
--- a/js/waves/model/WavesScreenModel.js
+++ b/js/waves/model/WavesScreenModel.js
@@ -273,8 +273,11 @@ define( require => {
       // @public - Notifies listeners when the model reset is complete
       this.resetEmitter = new Emitter();
 
-      // Reset the stopwatch time when changing scenes.
-      this.sceneProperty.link( () => this.timerElapsedTimeProperty.reset() );
+      // Reset the stopwatch time when changing scenes, and pause it.
+      this.sceneProperty.link( () => {
+        this.isTimerRunningProperty.reset();
+        this.timerElapsedTimeProperty.reset();
+      } );
     }
 
     /**