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keypad.py
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374 lines (311 loc) · 10.4 KB
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import serial
import time
import keyboard
import json
import os
import weakref
import pywintypes
import win32file
import argparse
import msvcrt
from threading import Thread
import win32gui, win32process, psutil
def active_window_process_name():
try:
pid = win32process.GetWindowThreadProcessId(win32gui.GetForegroundWindow())
return(psutil.Process(pid[-1]).name())
except:
return None
class SharedFile:
def open_for_read(self, path):
try:
fhandle = self.fhandle = win32file.CreateFile(
path,
win32file.GENERIC_READ,
win32file.FILE_SHARE_READ | win32file.FILE_SHARE_WRITE | win32file.FILE_SHARE_DELETE,
None,
win32file.OPEN_EXISTING,
win32file.FILE_ATTRIBUTE_NORMAL,
None)
self._closer = weakref.ref(
self, lambda x: win32file.CloseHandle(fhandle))
self.write_enabled = False
return open(msvcrt.open_osfhandle(fhandle.Detach(), os.O_TEXT | os.O_RDONLY), 'r')
except pywintypes.error as e:
raise IOError("Unable to open %s: %s" % (path, e))
#def open_for_write(self, path):
# try:
# fhandle = self.fhandle = win32file.CreateFile(
# path,
# win32file.GENERIC_READ | win32file.GENERIC_WRITE,
# win32file.FILE_SHARE_READ | win32file.FILE_SHARE_WRITE,
# None,
# win32file.OPEN_EXISTING,
# win32file.FILE_ATTRIBUTE_NORMAL,
# None)
#
# self.write_enabled = True
# self._closer = weakref.ref(
# self, lambda x: win32file.CloseHandle(fhandle))
#
# return fhandle
#
# except pywintypes.error as e:
# raise IOError("Unable to open %s: %s" % (path, e))
elite_status_map = {
0 : "Docked (on a landing pad)",
1 : "Landed (on planet surface)",
2 : "Landing Gear Down",
3 : "Shields Up",
4 : "Supercruise",
5 : "FlightAssist Off",
6 : "Hardpoints Deployed",
7 : "In Wing",
8 : "LightsOn",
9 : "Cargo Scoop Deployed",
10 : "Silent Running",
11 : "Scooping Fuel",
12 : "Srv Handbrake",
13 : "Srv using Turret view",
14 : "Srv Turret retracted (close to ship)",
15 : "Srv DriveAssist",
16 : "Fsd MassLocked",
17 : "Fsd Charging",
18 : "Fsd Cooldown",
19 : "Low Fuel ( < 25% )",
20 : "Over Heating ( > 100% )",
21 : "Has Lat Long",
22 : "IsInDanger",
23 : "Being Interdicted",
24 : "In MainShip",
25 : "In Fighter",
26 : "In SRV",
27 : "Hud in Analysis mode",
28 : "Night Vision",
}
class StatusService:
def register(self, driver):
# Register this StatusService with the keypad driver.
pass
def get_light_state(self, ident):
# Map an light to a status in some external system. Then return it's value (0 or 1).
pass
def set_key_state(self, ident, value):
# Map an key to a status in some external system. Then set it's value (0 or 1).
pass
class DebugStatusService(StatusService):
def __init__(self):
pass
def register(self, driver):
# Register this StatusService with the keypad driver.
self.driver = driver
driver.register_key_service(self, ['debug'])
def set_key_state(self, key, value):
print('\tkey[' + str(key['idx']) + '] = ' + str(value))
class DefaultStatusService(StatusService):
def __init__(self):
pass
def register(self, driver):
# Register this StatusService with the keypad driver.
self.driver = driver
driver.register_light_service(self, ['always', 'never', 'pattern'])
driver.register_key_service(self, ['default', 'hw_toggle', 'sw_toggle', 'press_release_ud', 'press_release_u', 'press_release_d'])
def get_light_state(self, light):
# Map an light to a status in some external system. Then return it's value (0 or 1).
if light['type'] == 'always':
return 1
elif light['type'] == 'never':
return 0
elif light['type'] == 'pattern':
tok = light['pattern'][int(time.time()*8.0) % len(light['pattern'])] if 'pattern' in light else '#'
return 1 if tok == '#' else 0
def set_key_state(self, key, value):
# Map an key to a status in some external system. Then set it's value (0 or 1).
key['state'] = value
if key['type'] in ['default', 'hw_toggle']:
if value == 1:
self.driver.press(key)
else:
self.driver.release(key)
elif key['type'] == 'press_release_ud':
self.driver.press_and_release(key)
elif key['type'] == 'press_release_u' and value == 0:
self.driver.press_and_release(key)
elif key['type'] == 'press_release_d' and value == 1:
self.driver.press_and_release(key)
elif key['type'] == 'sw_toggle' and value == 0:
if not 'toggle_count' in key:
key['toggle_count'] = 1
else:
key['toggle_count'] += 1
if key['toggle_count'] % 2 == 0:
self.driver.press(key)
else:
self.driver.release(key)
class EliteDangerousStatusService(StatusService):
def __init__(self):
self.esmask = 0
self.esmask_date = None
self.key_state_dirty = True
self.es_thread = Thread(target=self.sync_elite_status, args=(False, ), daemon=True)
self.es_thread.start()
def register(self, driver):
# Register this StatusService with the keypad driver.
self.driver = driver
driver.register_light_service(self, ['elite_dangerous_status'])
driver.register_key_service(self, ['elite_dangerous_autotoggle'])
def get_light_state(self, light):
# Map an light to a status in some external system. Then return it's value (0 or 1).
state = ((self.esmask >> abs(light['edstatus'])) & 1)
if state:
tok = light['pattern'][int(time.time()*8.0) % len(light['pattern'])] if 'pattern' in light else '#'
return 1 if tok == '#' else 0
else:
return 0
def set_key_state(self, key, value):
# Map an key to a status in some external system. Then set it's value (0 or 1).
key['state'] = value
self.key_state_dirty = True
def read_elite_status(self, dbg=False):
fn = os.path.join(os.environ['USERPROFILE'], "Saved Games/Frontier Developments/Elite Dangerous/Status.json")
if not os.path.exists(fn):
return
date = os.path.getmtime(fn)
flags = 0
# avoid reading the file lots when it hasn't changed..
if self.esmask_date == date:
return
try:
sf = SharedFile()
fd = sf.open_for_read(fn)
data = json.load(fd)
flags = data['Flags']
if dbg:
for i in range(29):
if ((1<<i) & flags) != 0:
print(elite_status_map[i])
except json.decoder.JSONDecodeError:
# sometimes the json may be partially written when we open it, so ignore errors.
# return the previous date so the code above will call us again later.
return
self.esmask_date = date;
self.esmask = flags
def sync_elite_status(self, dbg=False):
while True:
self.read_elite_status()
if dbg:
print(self.esmask_date, self.key_state_dirty)
if self.key_state_dirty:
# Synchronize the key state..
self.key_state_dirty = False
for key in self.driver.keymap.values():
if not 'edstatus' in key:
continue
if 'state' in key and ((self.esmask >> key['edstatus']) & 1) != key['state']:
if dbg:
print('Syncing %s to: %u' % (elite_status_map[key['edstatus']], key['state']))
self.driver.press_and_release(key)
time.sleep(0.25)
class KeypadSettings:
def __init__(self, fn = "settings.json"):
with open(fn, 'r') as fd:
self.data = json.load(fd)
def get_settings_for_app(self, app):
if app in self.data:
settings = self.data[app]
elif '_default_' in self.data:
settings = self.data['_default_']
else:
settings = {'keymap' : {}, 'lightmap' : {}}
for key in settings['keymap']:
settings['keymap'][key]['idx'] = key
for light in settings['lightmap']:
settings['lightmap'][light]['idx'] = light
return settings
class KeypadDriver:
def __init__(self, args):
self.args = args
self.settings = KeypadSettings(args.settings_file)
self.light_services = {}
self.key_services = {}
self.lightmask = 0
self.connected = False
DebugStatusService().register(self)
DefaultStatusService().register(self)
EliteDangerousStatusService().register(self)
self.app = "_default_"
s = self.settings.get_settings_for_app(self.app)
self.keymap = s['keymap']
self.lightmap = s['lightmap']
self.pn_thread = Thread(target=self.scan_for_process_name, daemon=True)
self.pn_thread.start()
def scan_for_process_name(self):
while True:
self.app = active_window_process_name()
#print(self.app)
s = self.settings.get_settings_for_app(self.app)
self.keymap = s['keymap']
self.lightmap = s['lightmap']
time.sleep(1)
def register_light_service(self, srv, types):
for typ in types:
self.light_services[typ] = srv
def register_key_service(self, srv, types):
for typ in types:
self.key_services[typ] = srv
def press_and_release(self, key):
keyboard.press_and_release(key['keypress'])
def press(self, key):
keyboard.press(key['keypress'])
def release(self, key):
keyboard.release(key['keypress'])
def communicate(self):
ard = serial.Serial(self.args.com_port,115200,timeout=5)
while True:
if self.connected:
plightmask = self.lightmask
for value in self.lightmap:
light = self.lightmap[value]
state = self.light_services[light['type']].get_light_state(light)
if state:
self.lightmask |= 1 << int(value)
else:
self.lightmask &= ~(1 << int(value))
if plightmask != self.lightmask:
for value in self.lightmap:
if self.lightmask & (1 << int(value)):
ard.write(b"l%u\n" % (int(value),))
else:
ard.write(b"d%u\n" % (int(value),))
ard.flush()
if ard.in_waiting > 0:
msg = ard.readline()
if msg:
msg = msg.decode("utf-8", errors="ignore").strip()
if len(msg) < 2:
continue
command = msg[-1]
value = msg[:-1]
if(command == 'u'):
if value in self.keymap:
key = self.keymap[value]
self.key_services[key['type']].set_key_state(key, 1 if key['invert'] else 0)
elif(command == 'd'):
if value in self.keymap:
key = self.keymap[value]
self.key_services[key['type']].set_key_state(key, 0 if key['invert'] else 1)
elif(command == 'h'):
print("Handshake recieved.")
self.connected = True
elif(command == 'b'):
print("Keypad reported %u buttons." % (int(value)))
elif(command == 'l'):
print("Keypad reported %u lights." % (int(value)))
if __name__ == "__main__":
parser = argparse.ArgumentParser()
parser.add_argument('-p', '--com_port', type=str, required=True,
help='The com port name where your keypad is attached. (eg: COM3)')
parser.add_argument('-s', '--settings_file', type=str, default="settings.json",
help='Path to your json settings file')
driver = KeypadDriver(parser.parse_args())
driver.communicate()