def set_trail_on(self, location):
self._trail_on = True
self._trail_start_location = tuple(location)
if self._is_server:
self._messages.append(
Messages.trail_on(self._cycle_number, self._trail_on,
self._trail_start_location))
def set_trail_off(self, location):
if self._trail_on:
self._trail.append((self._trail_start_location, tuple(location)))
self._trail_on = False
if self._is_server:
self._messages.append(
Messages.trail_on(self._cycle_number, self._trail_on,
tuple(location)))
