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
  21     def __init__(self, nmotes=1, timeout=5, screenResolution=(660, 370), position='ABOVE'):
  22         Thread.__init__(self, name='wiimote')
  23         self.queue = Queue()
  24         self.startup = Queue()
  25         self.nmotes = nmotes
  26         self.timeout = timeout
  27         self.screenResolution = screenResolution
  28         self.position = position
  29         self.selectedWiimoteIndex = 0
  30         self.setDaemon(1)
  31         self._paused = False
  32         self.start()
  33         self.startup.get(True) # wait for the thread to get started and acquire the motes
  34         self.eventCallBack = _default_event_cb
  35
  36     def setEventCallBack(self, func) :
  37         self.eventCallBack = func
  38
  39     def run(self):
  40         '''This runs in a separate thread'''
  41         global wiiuse
  42         import PyWiiUse as wiiuse # import here to avoid thread problems on windows
  43         self.wiimotes = wiiuse.init(self.nmotes)
  44         found = wiiuse.find(self.wiimotes, self.nmotes, self.timeout)
  45         self.actual_nmotes = wiiuse.connect(self.wiimotes, self.nmotes)
  46
  47
  48         if self.nmotes <= 4 :
  49             for i in range(self.nmotes):
  50                 wiiuse.set_leds(self.wiimotes[i], wiiuse.LED[i])
  51         else :
  52             for i in range(4):
  53                 wiiuse.set_leds(self.wiimotes[i], wiiuse.LED[i])
  54
  55             if self.nmotes == 5 :
  56                 wiiuse.set_leds(self.wiimotes[4], wiiuse.LED_1 | wiiuse.LED_4)
  57             if self.nmotes == 6 :
  58                 wiiuse.set_leds(self.wiimotes[4], wiiuse.LED_1 | wiiuse.LED_4)
  59                 wiiuse.set_leds(self.wiimotes[5], wiiuse.LED_1 | wiiuse.LED_2 | wiiuse.LED_3 | wiiuse.LED_4)
  60
  61         self.go = self.actual_nmotes != 0
  62
  63         self.startup.put(self.go)
  64
  65         while self.go:
  66             if self._paused : continue
  67             try :
  68                 if wiiuse.poll(self.wiimotes, self.nmotes) :
  69                     for i in range(self.nmotes) :
  70                         m = self.wiimotes[i]
  71                         if m[0].event == wiiuse.EVENT:
  72                             self.eventCallBack(self, i, m)
  73             except Exception, e:
  74                 print e
  75
  76             while True:
  77                 try:
  78                     func, args = self.queue.get_nowait()
  79                 except Empty:
  80                     break
  81                 func(*args)
  82
  83     def pause(self) :
  84         self._paused  = True
  85
  86     def resume(self) :
  87         self._paused = False
  88
  89     def selectWiimote(self, wiimoteIndex) :
  90         self.selectedWiimoteIndex = wiimoteIndex
  91
  92     def do(self, func, *args):
  93         '''Run the function in the thread handling the wiimote'''
  94         self.queue.put((func, args))
  95
  96     def control_cb(self, wmp, attachment, speaker, ir, led, battery):
  97         '''Could check the battery level and such here'''
  98         pygame.event.post(pygame.event.Event(WIIMOTE_STATUS,
  99                                              attachment=attachment,
 100                                              speaker=speaker,
 101                                              ir=ir,
 102                                              led=[led[i] for i in range(4)],
 103                                              battery=battery,
 104                                              id=wmp[0].unid))
 105
 106     def disconnect_cb(self, wmp):
 107         '''What should we do here?'''
 108         pygame.event.post(pygame.event.Event(WIIMOTE_DISCONNECT,
 109                                              id=wmp[0].unid))
 110
 111     def quit(self):
 112         '''Go away.'''
 113         # TODO will crash if self.nmotes > 4
 114         # for i in range(self.nmotes):
 115         #     wiiuse.set_leds(self.wiimotes[i], 0)
 116         #     wiiuse.disconnect(self.wiimotes[i])
 117         self.go = False
 118
 119     def get_count(self):
 120         return self.actual_nmotes
 121
 122
 123 def _default_event_cb(self, id, wmp):
 124     ''' default callback that emulate a one button mouse '''
 125     if id != self.selectedWiimoteIndex : return
 126     wm = wmp[0]
 127     pos = (wm.ir.x, wm.ir.y)
 128     pygame.mouse.set_pos(pos)
 129
 130     eventType = None
 131
 132     if wm.btns and \
 133         wiiuse.is_just_pressed(wm, wiiuse.button['B']) :
 134             event = pygame.event.Event(pygame.MOUSEBUTTONDOWN,
 135                                        pos = pos,
 136                                        button = 1)
 137             pygame.event.post(event)
 138
 139     if wm.btns_released and \
 140         wiiuse.is_released(wm, wiiuse.button['B']):
 141             event = pygame.event.Event(pygame.MOUSEBUTTONUP,
 142                                        pos = pos,
 143                                        button = 1)
 144             pygame.event.post(event)
 145
 146 def _full_mouse_event_cb(self, id, wmp):
 147     ''' callback that emulate a 2 buttons mouse with wheel '''
 148     if id != self.selectedWiimoteIndex : return
 149     wm = wmp[0]
 150     pos = (wm.ir.x, wm.ir.y)
 151     pygame.mouse.set_pos(pos)
 152
 153     eventType = None
 154
 155     if wm.btns :
 156         button = 0
 157         if wiiuse.is_just_pressed(wm, wiiuse.button['B']) :
 158             button = 1
 159         elif wiiuse.is_just_pressed(wm, wiiuse.button['A']) :
 160             button = 2
 161         elif wiiuse.is_just_pressed(wm, wiiuse.button['Up']) :
 162             button = 4
 163         elif wiiuse.is_just_pressed(wm, wiiuse.button['Down']) :
 164             button = 5
 165
 166         if button :
 167             event = pygame.event.Event(pygame.MOUSEBUTTONDOWN,
 168                                        pos = pos,
 169                                        button = button)
 170             pygame.event.post(event)
 171
 172     if wm.btns_released :
 173         button = 0
 174         if wiiuse.is_released(wm, wiiuse.button['B']) :
 175             button = 1
 176         elif wiiuse.is_released(wm, wiiuse.button['A']) :
 177             button = 2
 178         elif wiiuse.is_released(wm, wiiuse.button['Up']) :
 179             button = 4
 180         elif wiiuse.is_released(wm, wiiuse.button['Down']) :
 181             button = 5
 182
 183         if button :
 184             event = pygame.event.Event(pygame.MOUSEBUTTONUP,
 185                                        pos = pos,
 186                                        button = button)
 187             pygame.event.post(event)
 188
 189
 190 WT = None
 191
 192 def init(nmotes, timeout, screenResolution=(660, 370), position='ABOVE'):
 193     '''Initialize the module.'''
 194     global WT
 195     if WT:
 196         return
 197
 198     WT = wiimote_thread(nmotes, timeout, screenResolution, position)
 199
 200     nmotes = get_count()
 201     for i in range(nmotes) :
 202         wm = Wiimote(i) # access the wiimote object
 203         wm.enable_accels(0) # turn off acceleration reporting
 204         wm.enable_ir(1, vres = screenResolution, position=position)
 205
 206
 207 def get_count():
 208     '''How many Wiimotes were found?'''
 209     return WT.get_count()
 210
 211 def quit():
 212     '''Gracefully shutdown the connection and turn off the wiimote leds'''
 213     WT.quit()
 214     WT.join()
 215
 216 class wiimote(object):
 217     '''Object representing a Wiimote'''
 218     def __init__(self, n):
 219         self.wm = WT.wiimotes[n]
 220
 221     def enable_leds(self, m):
 222         '''Control leds. The lower 4 bits map to the 4 leds'''
 223         WT.do(wiiuse.set_leds, self.wm, sum([wiiuse.LED[i] for i in range(4) if m & (1<<i)]))
 224
 225     def enable_rumble(self, on):
 226         '''Control rumble'''
 227         WT.do(wiiuse.rumble, self.wm, on)
 228
 229     def enable_accels(self, on):
 230         '''Control reporting of accelerometer data.'''
 231         WT.do(wiiuse.motion_sensing, self.wm, on)
 232
 233     def enable_ir(self, on, vres=None, position=None, aspect=None):
 234         '''Control reporting IR data.'''
 235         WT.do(wiiuse.set_ir, self.wm, on)
 236         if vres is not None:
 237             WT.do(wiiuse.set_ir_vres, self.wm, *vres)
 238         if position is not None:
 239             WT.do(wiiuse.set_ir_position, self.wm, position)
 240         if aspect is not None:
 241             WT.do(wiiuse.set_aspect_ratio, self.wm, aspect)
 242
 243     def set_flags(self, smoothing=None, continuous=None, threshold=None):
 244         '''Set flags SMOOTHING, CONTINUOUS, ORIENT_THRESH'''
 245         enable = disable = 0
 246         if smoothing is not None:
 247             if smoothing:
 248                 enable |= wiiuse.SMOOTHING
 249             else:
 250                 disable |= wiiuse.SMOOTHING
 251         if continuous is not None:
 252             if continuous:
 253                 enable |= wiiuse.CONTINUOUS
 254             else:
 255                 disable |= wiiuse.CONTINUOUS
 256         if threshold is not None:
 257             if threshold:
 258                 enable |= wiiuse.ORIENT_THRESH
 259             else:
 260                 disable |= wiiuse.ORIENT_THRESH
 261         WT.do(wiiuse.set_flags, self.wm, enable, disable)
 262
 263     def set_orient_thresh(self, thresh):
 264         '''Set orientation threshold'''
 265         WT.do(wiiuse.set_orient_threshold, self.wm, thresh)
 266
 267     def status(self):
 268         '''Trigger a status callback.'''
 269         WT.do(wiiuse.status, self.wm)
 270
 271     def disconnect(self):
 272         '''Disconnect this Wiimote'''
 273         WT.do(wiiuse.disconnect(self.wm))
 274
 275 def Wiimote(n):
 276     '''Get the object for the nth Wiimote'''
 277     return wiimote(n)
 278