forked from Advanced_Python/advanced-python-homework-2023
74 lines
2.0 KiB
Python
74 lines
2.0 KiB
Python
import cmd
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import threading
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from queue import Queue
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from equipment.turtle_device import TurtleDevice
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class TurtleDeviceThread(threading.Thread):
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# TODO(Homework 4)
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def __init__(self):
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super().__init__()
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self.device = TurtleDevice()
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self.queue = Queue[tuple]()
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self.device.open()
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self.device.execute("speed", 1)
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def run(self):
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while True:
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action, args, kwargs = self.queue.get()
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if action == "exit":
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self.queue.task_done()
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break
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self.device.execute(action, *args, **kwargs)
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self.queue.task_done()
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def add_task(self, action, *args, **kwargs):
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self.queue.put((action, args, kwargs))
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class NoBlockingTurtleShell(cmd.Cmd):
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intro = "Welcome to the turtle shell. Type help or ? to list commands.\n"
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prompt = "(turtle) "
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file = None
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def __init__(self, turtle_thread: TurtleDeviceThread):
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super().__init__()
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self.turtle_thread = turtle_thread
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@property
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def turtle_device(self):
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return self.turtle_thread.device
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def do_execute(self, arg):
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command_and_args = arg.split()
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if len(command_and_args) == 1:
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self.turtle_thread.add_task(command)
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return
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command = command_and_args[0]
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args = tuple(int(c) if c.isdecimal() else c for c in command_and_args[1:])
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self.turtle_thread.add_task(command, *args)
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def do_fw(self, arg):
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self.do_execute("forward 100")
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def do_le(self, arg):
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self.do_execute("left 1000")
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def do_exit(self, arg):
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self.turtle_thread.add_task("exit")
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return True
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if __name__ == "__main__":
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turtle_thread = TurtleDeviceThread()
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# TODO(Homework 4: Correct start thread)
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turtle_thread.daemon = True
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thread_shell = threading.Thread(target=NoBlockingTurtleShell(turtle_thread).cmdloop)
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thread_shell.start()
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turtle_thread.run()
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thread_shell.join()
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