Bug fix in dummybot, and completed controller example

src/omnibot_client/ControllerTest.py

@@ -85,8 +85,7 @@ def run_omnibot_with_controller(HOST,verbose=False):
     ts = 0.1 # sampling time
     
     with OmniBot(HOST,verbose=verbose) as bot:
-        no_error = True
-        while state.on and no_error:
+        while state.on:
             t0 = time()
 
             # Get gamepad updates.
@@ -100,8 +99,8 @@ def run_omnibot_with_controller(HOST,verbose=False):
             for i,v in enumerate(dphi):
                 bot.set_speed(i,round(v))
                     
-            print('x:'+bot.get_x())
-            print('y:'+bot.get_y())
+            print('x:'+str(bot.get_x()))
+            print('y:'+str(bot.get_y()))
 
             sleep(max(0,t0+ts-time()))
                     

src/omnibot_client/Dummybot.py

@@ -34,8 +34,8 @@ def run_dummybot(HOST,verbose=True):
 
             bot.set_speeds([-vset,-vset,-vset])
               
-            print('x:'+bot.get_x())
-            print('y:'+bot.get_y())
+            print('x:'+str(bot.get_x()))
+            print('y:'+str(bot.get_y()))
 
             sleep(max(0,t0+ts-time()))