[Tkinter] Tkinter/Turtle Stopping and Starting Timers Cleanly

[robin73]

Hey thanks @deanhystad that was super-useful. I've been pulling my hair out over this for a while now!

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@deanhystad I've just noticed that with your insight, I can now go back to using plain old Turtle methods:

def start_bomb_drop():
    # Prevent further key presses until drop is finished tp prevent event stacking.
    screen.onkey(None, "space")  #
    bomb.goto(plane.xcor(), plane.ycor())
    bomb.showturtle()
    __continue_bomb_drop()
    
    
def __continue_bomb_drop():
    bomb.goto(bomb.xcor(), bomb.ycor() - 12)
    if bomb.ycor() < - height // 2 or bomb_collision():
        stop_bomb_drop()
    else:
        turtle.ontimer(__continue_bomb_drop, BOMB_DELAY)
    
    
def stop_bomb_drop():
    bomb.hideturtle()
    # It's now safe to allow another bomb drop, so rebind keyboard event.
    screen.onkey(start_bomb_drop, "space")