import threading
import cv2 as cv
import keyboard


class KeyboardEvent(threading.Thread):

    def __init__(self):
        threading.Thread.__init__(self)

        self.run_mode = 'run'
        self.offset_value = 0
        self.start()
    def run(self):
        while self.run_mode == 'run':
            if keyboard.is_pressed('up'):  # if key 'q' is pressed
                self.offset_value = -75
            elif keyboard.is_pressed('down'):
                self.offset_value = 75
            elif keyboard.is_pressed('left') or keyboard.is_pressed('right'):
                self.offset_value = 0
            cv.waitKey(10)

    def callback(self):
        pass

    def destroy(self):
        self.destroy()

    def get_run_mode(self):
        return self.run_mode