From 5fd9a4160c1a424a0c599e02830d34cdd2df8584 Mon Sep 17 00:00:00 2001
From: zepumph <michael.kauzmann@colorado.edu>
Date: Mon, 11 Oct 2021 16:59:41 -0600
Subject: [PATCH] update instrumentation of evaporate -> shear off terminology,
 https://github.com/phetsims/friction/issues/236

---
 js/friction/model/FrictionModel.js     | 11 ++++++-----
 js/friction/view/FrictionScreenView.js |  2 +-
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/js/friction/model/FrictionModel.js b/js/friction/model/FrictionModel.js
index f5130c21..28ed6d41 100644
--- a/js/friction/model/FrictionModel.js
+++ b/js/friction/model/FrictionModel.js
@@ -181,8 +181,8 @@ class FrictionModel extends PhetioObject {
     this.scheduledShearingAmount = 0;
 
     // @public (phet-io) - Instrumented so that PhET-iO clients can get a message when an atom shears off
-    this.shearingEmitter = new Emitter( {
-      tandem: tandem.createTandem( 'shearingEmitter' ),
+    this.shearedOffEmitter = new Emitter( {
+      tandem: tandem.createTandem( 'shearedOffEmitter' ),
       phetioDocumentation: 'Emits when atoms shear off from the top book',
       phetioReadOnly: true
     } );
@@ -220,7 +220,8 @@ class FrictionModel extends PhetioObject {
 
     // @public (read-only) {NumberProperty} - number of rows of atoms available to shear off, goes down as book wears away
     this.atomRowsToShearOffProperty = new NumberProperty( TOP_BOOK_ATOM_STRUCTURE.length - 1, {
-      tandem: tandem.createTandem( 'atomRowsToShearOffProperty' )
+      tandem: tandem.createTandem( 'atomRowsToShearOffProperty' ),
+      phetioReadOnly: true
     } );
 
     // @private - are books in contact?
@@ -248,7 +249,7 @@ class FrictionModel extends PhetioObject {
     // {number} the count of how many atoms have been sheared off
     this.numberOfAtomsShearedOff = 0;
 
-    this.shearingEmitter.addListener( () => {
+    this.shearedOffEmitter.addListener( () => {
       this.numberOfAtomsShearedOff += 1;
     } );
 
@@ -440,7 +441,7 @@ class FrictionModel extends PhetioObject {
         // randomly choose an non-sheared-off atom and shear off it
         const atomsToShearOff = dotRandom.sample( notYetShearedAtoms );
         atomsToShearOff.shearOff();
-        this.shearingEmitter.emit();
+        this.shearedOffEmitter.emit();
 
         // cause some cooling due to shearing
         this.scheduledShearingAmount = this.scheduledShearingAmount + SHEAR_OFF_AMPLITUDE_REDUCTION;
diff --git a/js/friction/view/FrictionScreenView.js b/js/friction/view/FrictionScreenView.js
index ee9993f9..cda2eb7e 100644
--- a/js/friction/view/FrictionScreenView.js
+++ b/js/friction/view/FrictionScreenView.js
@@ -226,7 +226,7 @@ class FrictionScreenView extends ScreenView {
       rateChangesAffectPlayingSounds: false
     } );
     soundManager.addSoundGenerator( moleculeBreakOffSoundClip );
-    model.shearingEmitter.addListener( () => {
+    model.shearedOffEmitter.addListener( () => {
 
       // don't play for every sheared off atom or it's too noisy
       if ( model.numberOfAtomsShearedOff % 4 === 0 ) {