def _stop_heartbeat(self):
"""
Stop the heartbeat animation if its currently running.
"""
if self.heartbeat:
cancel(self.heartbeat)
self.heartbeat = None
def on_exit(self):
# Stop all LED animations before exiting
if self.led_fade:
cancel(self.led_fade)
self.led_fade = None
if self.led_fade_in_out:
cancel(self.led_fade_in_out)
self.led_fade_in_out = None
def stop(self):
"""
Stop the current running animation (if any).
"""
self.current += 1
if self.animation:
self.animation._running = False
if self.runner:
cancel(self.runner)
self.runner = None
def on_right_button_up(self):
"""
Invoked when the user no longer presses down the right button.
Stop the adjust coroutine if it's running to stop adjusting
the actuator values.
"""
if self.adjust:
cancel(self.adjust)
self.adjust = None
self._update_display()
def on_resume(self):
current_program = self.get_current_program()
current_image = current_program.get_image()
animation = shift_in_from_bottom(current_image)
hub.sound.play(Sounds.PROGRAM_STOP, 16000)
hub.display.show(animation, delay=44)
# Stop LED fading in and out animation
if self.led_fade_in_out:
cancel(self.led_fade_in_out)
self.led_fade_in_out = None
# Start LED fade in animation
self.led_fade = call_soon(led_fade_to(BLUE, 100, 1))
def on_pause(self):
current_program = self.get_current_program()
current_image = current_program.get_image()
animation = shift_out_to_bottom(current_image)
hub.sound.play(Sounds.PROGRAM_START, 16000)
hub.display.show(animation, delay=44)
# Stop LED fade in animation
if self.led_fade:
cancel(self.led_fade)
self.led_fade = None
# Start LED fading in and out animation
self.led_fade_in_out = call_soon(led_fade_in_out())
def on_disconnected_right(self):
"""
Invoked when the user disconnects the device in the right port.
"""
# Make sure this method won't fail even if invoked when no left
# device connected
if not self.right:
return
# Stop reading sensor values from this device
if self.right_read:
cancel(self.right_read)
self.right_read = None
# Set other device' value to zero if this was a sensor
if self.right.is_sensor() and self.left:
self.left.set_value(0)
self.right = None
self.right_value = 0
self._update_display()
def on_exit(self):
"""
Invoked as the last thing before the default application exists.
"""
self.running = False
# Stop ongoing animation
self.display.animation.stop()
# Stop reading sensor values from these devices
if self.left_read:
cancel(self.left_read)
self.left_read = None
if self.right_read:
cancel(self.right_read)
self.right_read = None
# Stop adjusting actuator values
if self.adjust:
cancel(self.adjust)
self.adjust = None
if self.left:
self.left.set_value(0)
self.left = None
if self.right:
self.right.set_value(0)
self.right = None
self.left_value = 0
self.right_value = 0