From d0e9e518b628b07457cb103b1e4711385990e58e Mon Sep 17 00:00:00 2001
From: raphael <raphael.fritsch@reutlingen-university.de>
Date: Fri, 11 Jan 2019 10:55:37 +0100
Subject: [PATCH] add comments

---
 server.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/server.js b/server.js
index dff09d1..24291be 100644
--- a/server.js
+++ b/server.js
@@ -77,17 +77,17 @@ function progressUploadFormData(formData) {
 io.on('connection', function(socket){
 
     socket.on('disconnect', function () {
-        socket.broadcast.emit('refreshUserBadges', null);
+        socket.broadcast.emit('refreshUserBadges', null); //Removes old user Badges
     });
 
     socket.on('drawToWhiteboard', function(content) {
         content = escapeAllContentStrings(content);
-        socket.broadcast.to(content["wid"]).emit('drawToWhiteboard', content);
+        socket.broadcast.to(content["wid"]).emit('drawToWhiteboard', content); //Send to all users in the room (not own socket)
         s_whiteboard.handleEventsAndData(content); //save whiteboardchanges on the server
     });
 
     socket.on('joinWhiteboard', function(wid) {
-        socket.join(wid);
+        socket.join(wid); //Joins room name=wid
     });
 });