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         pos = (wm.ir.x, wm.ir.y)
  80         pygame.mouse.set_pos(pos)
  81
  82         eventType = None
  83
  84         if wm.btns and \
  85             wiiuse.is_just_pressed(wm, wiiuse.button['B']) :
  86                 event = pygame.event.Event(pygame.MOUSEBUTTONDOWN,
  87                                            pos = pos,
  88                                            button = 1)
  89                 pygame.event.post(event)
  90
  91         if wm.btns_released and \
  92             wiiuse.is_released(wm, wiiuse.button['B']):
  93                 event = pygame.event.Event(pygame.MOUSEBUTTONUP,
  94                                            pos = pos,
  95                                            button = 1)
  96                 pygame.event.post(event)
  97
  98
  99
 100     def control_cb(self, wmp, attachment, speaker, ir, led, battery):
 101         '''Could check the battery level and such here'''
 102         pygame.event.post(pygame.event.Event(WIIMOTE_STATUS,
 103                                              attachment=attachment,
 104                                              speaker=speaker,
 105                                              ir=ir,
 106                                              led=[led[i] for i in range(4)],
 107                                              battery=battery,
 108                                              id=wmp[0].unid))
 109
 110     def disconnect_cb(self, wmp):
 111         '''What should we do here?'''
 112         pygame.event.post(pygame.event.Event(WIIMOTE_DISCONNECT,
 113                                              id=wmp[0].unid))
 114
 115     def quit(self):
 116         '''Go away.'''
 117         for i in range(self.nmotes):
 118             wiiuse.set_leds(self.wiimotes[i], 0)
 119             wiiuse.disconnect(self.wiimotes[i])
 120         self.go = False
 121
 122 WT = None
 123
 124 def init(nmotes, timeout):
 125     '''Initialize the module.'''
 126     global WT
 127     if WT:
 128         return
 129     WT = wiimote_thread(nmotes, timeout)
 130
 131 def get_count():
 132     '''How many Wiimotes were found?'''
 133     return WT.actual_nmotes
 134
 135 def quit():
 136     '''Gracefully shutdown the connection and turn off the wiimote leds'''
 137     WT.quit()
 138     WT.join()
 139
 140 class wiimote(object):
 141     '''Object representing a Wiimote'''
 142     def __init__(self, n):
 143         self.wm = WT.wiimotes[n]
 144
 145     def enable_leds(self, m):
 146         '''Control leds. The lower 4 bits map to the 4 leds'''
 147         WT.do(wiiuse.set_leds, self.wm, sum([wiiuse.LED[i] for i in range(4) if m & (1<<i)]))
 148
 149     def enable_rumble(self, on):
 150         '''Control rumble'''
 151         WT.do(wiiuse.rumble, self.wm, on)
 152
 153     def enable_accels(self, on):
 154         '''Control reporting of accelerometer data.'''
 155         WT.do(wiiuse.motion_sensing, self.wm, on)
 156
 157     def enable_ir(self, on, vres=None, position=None, aspect=None):
 158         '''Control reporting IR data.'''
 159         WT.do(wiiuse.set_ir, self.wm, on)
 160         if vres is not None:
 161             WT.do(wiiuse.set_ir_vres, self.wm, *vres)
 162         if position is not None:
 163             WT.do(wiiuse.set_ir_position, self.wm, position)
 164         if aspect is not None:
 165             WT.do(wiiuse.set_aspect_ratio, self.wm, aspect)
 166
 167     def set_flags(self, smoothing=None, continuous=None, threshold=None):
 168         '''Set flags SMOOTHING, CONTINUOUS, ORIENT_THRESH'''
 169         enable = disable = 0
 170         if smoothing is not None:
 171             if smoothing:
 172                 enable |= wiiuse.SMOOTHING
 173             else:
 174                 disable |= wiiuse.SMOOTHING
 175         if continuous is not None:
 176             if continuous:
 177                 enable |= wiiuse.CONTINUOUS
 178             else:
 179                 disable |= wiiuse.CONTINUOUS
 180         if threshold is not None:
 181             if threshold:
 182                 enable |= wiiuse.ORIENT_THRESH
 183             else:
 184                 disable |= wiiuse.ORIENT_THRESH
 185         print enable, disable
 186         WT.do(wiiuse.set_flags, self.wm, enable, disable)
 187
 188     def set_orient_thresh(self, thresh):
 189         '''Set orientation threshold'''
 190         WT.do(wiiuse.set_orient_threshold, self.wm, thresh)
 191
 192     def status(self):
 193         '''Trigger a status callback.'''
 194         WT.do(wiiuse.status, self.wm)
 195
 196     def disconnect(self):
 197         '''Disconnect this Wiimote'''
 198         WT.do(wiiuse.disconnect(self.wm))
 199
 200 def Wiimote(n):
 201     '''Get the object for the nth Wiimote'''
 202     return wiimote(n)
 203