src/pywiiuse/pygame_wiimouse.py

   1 # -*- coding: utf-8 -*-
   2 '''
   3 wiimote -> mouse interface
   4 $Id$
   5 $URL$
   6 '''
   7
   8 import pygame
   9 from threading import Thread
  10 from Queue import Queue, Empty
  11 import time
  12
  13 # events to use. Is there a way to get ones known to be unused?
  14
  15
  16 wiiuse = None # import within the thread, why do I have to do this?
  17
  18 class wiimote_thread(Thread):
  19     '''Manage the wiiuse interface'''
  20     def __init__(self, nmotes=1, timeout=5):
  21         Thread.__init__(self, name='wiimote')
  22         self.queue = Queue()
  23         self.startup = Queue()
  24         self.nmotes = nmotes
  25         self.timeout = timeout
  26         self.setDaemon(1)
  27         self._paused = False
  28         self.start()
  29         self.startup.get(True) # wait for the thread to get started and acquire the motes
  30
  31     def run(self):
  32         '''This runs in a separate thread'''
  33         global wiiuse
  34         import PyWiiUse as wiiuse # import here to avoid thread problems on windows
  35         self.wiimotes = wiiuse.init(self.nmotes)
  36         found = wiiuse.find(self.wiimotes, self.nmotes, self.timeout)
  37         self.actual_nmotes = wiiuse.connect(self.wiimotes, self.nmotes)
  38
  39
  40         for i in range(self.nmotes):
  41             wiiuse.set_leds(self.wiimotes[i], wiiuse.LED[i])
  42
  43         self.go = self.actual_nmotes != 0
  44
  45         self.startup.put(self.go)
  46
  47         while self.go:
  48             if self._paused : continue
  49             try :
  50                 if wiiuse.poll(self.wiimotes, self.nmotes) :
  51                     for i in range(self.nmotes):
  52                         m = self.wiimotes[i]
  53                         if m[0].event == wiiuse.EVENT:
  54                             self.event_cb(m)
  55             except :
  56                 pass
  57
  58             while True:
  59                 try:
  60                     func, args = self.queue.get_nowait()
  61                 except Empty:
  62                     break
  63                 print 'do:', func.__name__, args
  64                 func(*args)
  65
  66     def pause(self) :
  67         self._paused  = True
  68
  69     def resume(self) :
  70         self._paused = False
  71
  72     def do(self, func, *args):
  73         '''Run the function in the thread handling the wiimote'''
  74         self.queue.put((func, args))
  75
  76     def event_cb(self, wmp):
  77         '''Called when the library has some data for the user.'''
  78         wm = wmp[0]
  79         pygame.mouse.set_pos((wm.ir.x, wm.ir.y))
  80
  81     def control_cb(self, wmp, attachment, speaker, ir, led, battery):
  82         '''Could check the battery level and such here'''
  83         pygame.event.post(pygame.event.Event(WIIMOTE_STATUS,
  84                                              attachment=attachment,
  85                                              speaker=speaker,
  86                                              ir=ir,
  87                                              led=[led[i] for i in range(4)],
  88                                              battery=battery,
  89                                              id=wmp[0].unid))
  90
  91     def disconnect_cb(self, wmp):
  92         '''What should we do here?'''
  93         pygame.event.post(pygame.event.Event(WIIMOTE_DISCONNECT,
  94                                              id=wmp[0].unid))
  95
  96     def quit(self):
  97         '''Go away.'''
  98         for i in range(self.nmotes):
  99             wiiuse.set_leds(self.wiimotes[i], 0)
 100             wiiuse.disconnect(self.wiimotes[i])
 101         self.go = False
 102
 103 WT = None
 104
 105 def init(nmotes, timeout):
 106     '''Initialize the module.'''
 107     global WT
 108     if WT:
 109         return
 110     WT = wiimote_thread(nmotes, timeout)
 111
 112 def get_count():
 113     '''How many Wiimotes were found?'''
 114     return WT.actual_nmotes
 115
 116 def quit():
 117     '''Gracefully shutdown the connection and turn off the wiimote leds'''
 118     WT.quit()
 119     WT.join()
 120
 121 class wiimote(object):
 122     '''Object representing a Wiimote'''
 123     def __init__(self, n):
 124         self.wm = WT.wiimotes[n]
 125
 126     def enable_leds(self, m):
 127         '''Control leds. The lower 4 bits map to the 4 leds'''
 128         WT.do(wiiuse.set_leds, self.wm, sum([wiiuse.LED[i] for i in range(4) if m & (1<<i)]))
 129
 130     def enable_rumble(self, on):
 131         '''Control rumble'''
 132         WT.do(wiiuse.rumble, self.wm, on)
 133
 134     def enable_accels(self, on):
 135         '''Control reporting of accelerometer data.'''
 136         WT.do(wiiuse.motion_sensing, self.wm, on)
 137
 138     def enable_ir(self, on, vres=None, position=None, aspect=None):
 139         '''Control reporting IR data.'''
 140         WT.do(wiiuse.set_ir, self.wm, on)
 141         if vres is not None:
 142             WT.do(wiiuse.set_ir_vres, self.wm, *vres)
 143         if position is not None:
 144             WT.do(wiiuse.set_ir_position, self.wm, position)
 145         if aspect is not None:
 146             WT.do(wiiuse.set_aspect_ratio, self.wm, aspect)
 147
 148     def set_flags(self, smoothing=None, continuous=None, threshold=None):
 149         '''Set flags SMOOTHING, CONTINUOUS, ORIENT_THRESH'''
 150         enable = disable = 0
 151         if smoothing is not None:
 152             if smoothing:
 153                 enable |= wiiuse.SMOOTHING
 154             else:
 155                 disable |= wiiuse.SMOOTHING
 156         if continuous is not None:
 157             if continuous:
 158                 enable |= wiiuse.CONTINUOUS
 159             else:
 160                 disable |= wiiuse.CONTINUOUS
 161         if threshold is not None:
 162             if threshold:
 163                 enable |= wiiuse.ORIENT_THRESH
 164             else:
 165                 disable |= wiiuse.ORIENT_THRESH
 166         print enable, disable
 167         WT.do(wiiuse.set_flags, self.wm, enable, disable)
 168
 169     def set_orient_thresh(self, thresh):
 170         '''Set orientation threshold'''
 171         WT.do(wiiuse.set_orient_threshold, self.wm, thresh)
 172
 173     def status(self):
 174         '''Trigger a status callback.'''
 175         WT.do(wiiuse.status, self.wm)
 176
 177     def disconnect(self):
 178         '''Disconnect this Wiimote'''
 179         WT.do(wiiuse.disconnect(self.wm))
 180
 181 def Wiimote(n):
 182     '''Get the object for the nth Wiimote'''
 183     return wiimote(n)
 184