75 lines
1.7 KiB
Python
75 lines
1.7 KiB
Python
import sys
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import termios
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import time
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from termios import (BRKINT, CS8, CSIZE, ECHO, ICANON, ICRNL, IEXTEN, INPCK,
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ISTRIP, IXON, PARENB, VMIN, VTIME)
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from typing import NoReturn
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# Indexes for termios list.
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IFLAG = 0
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OFLAG = 1
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CFLAG = 2
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LFLAG = 3
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ISPEED = 4
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OSPEED = 5
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CC = 6
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STDIN_FD = sys.stdin.fileno()
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def getch() -> str:
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old_settings = termios.tcgetattr(STDIN_FD)
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try:
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# set
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mode = old_settings.copy()
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mode[IFLAG] &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON)
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#mode[OFLAG] &= ~(OPOST)
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mode[CFLAG] &= ~(CSIZE | PARENB)
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mode[CFLAG] |= CS8
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mode[LFLAG] &= ~(ECHO | ICANON | IEXTEN)
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mode[CC][VMIN] = 1
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mode[CC][VTIME] = 0
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termios.tcsetattr(STDIN_FD, termios.TCSAFLUSH, mode)
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ch = sys.stdin.read(1)
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finally:
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termios.tcsetattr(STDIN_FD, termios.TCSADRAIN, old_settings)
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return ch
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def keyboard_poll_thread(q: 'Queue[str]'):
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while True:
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c = getch()
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# print("got %s" % c)
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if c == '1':
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q.put("cruise_up")
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elif c == '2':
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q.put("cruise_down")
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elif c == '3':
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q.put("cruise_cancel")
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elif c == 'w':
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q.put("throttle_%f" % 1.0)
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elif c == 'a':
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q.put("steer_%f" % 0.15)
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elif c == 's':
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q.put("brake_%f" % 1.0)
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elif c == 'd':
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q.put("steer_%f" % -0.15)
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elif c == 'i':
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q.put("ignition")
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elif c == 'q':
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q.put("quit")
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break
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def test(q: 'Queue[str]') -> NoReturn:
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while True:
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print([q.get_nowait() for _ in range(q.qsize())] or None)
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time.sleep(0.25)
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if __name__ == '__main__':
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from multiprocessing import Process, Queue
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q: Queue[str] = Queue()
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p = Process(target=test, args=(q,))
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p.daemon = True
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p.start()
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keyboard_poll_thread(q)
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