Merge pull request #8 from udacity/awbrown90-dbw_patch-1

Update server.py

Author: Aaron Brown

ros/src/styx/server.py

@@ -14,11 +14,11 @@
 bridge = Bridge(conf)
 msgs = []
 
+dbw_enable = False
 
 @sio.on('connect')
 def connect(sid, environ):
     print("connect ", sid)
-    bridge.publish_dbw_status(True)
 
 def send(topic, data):
     s = 1
@@ -29,6 +29,10 @@ def send(topic, data):
 
 @sio.on('telemetry')
 def telemetry(sid, data):
+    global dbw_enable
+    if data["dbw_enable"] != dbw_enable:
+        dbw_enable = data["dbw_enable"]
+        bridge.publish_dbw_status(dbw_enable)
     bridge.publish_odometry(data)
     for i in range(len(msgs)):
         topic, data = msgs.pop(0)