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 #        for i in range(self.actual_nmotes) :
  92 #            wm = self.wiimotes[i]
  93 #            if i == wiimoteIndex :
  94 #                self.do(wiiuse.set_ir, wm, 1)
  95 #                self.do(wiiuse.set_ir_vres, wm, *self.screenResolution)
  96 #                if self.position == 'ABOVE' :
  97 #                    position = wiiuse.IR_ABOVE
  98 #                elif self.position == 'BELOW' :
  99 #                    position = wiiuse.IR_BELOW
 100 #                else :
 101 #                    position = wiiuse.IR_ABOVE
 102 #                self.do(wiiuse.set_ir_position, wm, position)
 103 #                # TODO aspect ratio
 104 #                #self.do(wiiuse.set_aspect_ratio, wm, aspect)
 105 #
 106 #            else :
 107 #                self.do(wiiuse.set_ir, wm, 0)
 108
 109     def do(self, func, *args):
 110         '''Run the function in the thread handling the wiimote'''
 111         self.queue.put((func, args))
 112
 113     def control_cb(self, wmp, attachment, speaker, ir, led, battery):
 114         '''Could check the battery level and such here'''
 115         pygame.event.post(pygame.event.Event(WIIMOTE_STATUS,
 116                                              attachment=attachment,
 117                                              speaker=speaker,
 118                                              ir=ir,
 119                                              led=[led[i] for i in range(4)],
 120                                              battery=battery,
 121                                              id=wmp[0].unid))
 122
 123     def disconnect_cb(self, wmp):
 124         '''What should we do here?'''
 125         pygame.event.post(pygame.event.Event(WIIMOTE_DISCONNECT,
 126                                              id=wmp[0].unid))
 127
 128     def quit(self):
 129         '''Go away.'''
 130         for i in range(self.nmotes):
 131             wiiuse.set_leds(self.wiimotes[i], 0)
 132             wiiuse.disconnect(self.wiimotes[i])
 133         self.go = False
 134
 135     def get_count(self):
 136         return self.actual_nmotes
 137
 138
 139 def _default_event_cb(self, id, wmp):
 140     ''' default callback that emulate a one button mouse '''
 141     if id != self.selectedWiimoteIndex : return
 142     wm = wmp[0]
 143     pos = (wm.ir.x, wm.ir.y)
 144     pygame.mouse.set_pos(pos)
 145
 146     eventType = None
 147
 148     if wm.btns and \
 149         wiiuse.is_just_pressed(wm, wiiuse.button['B']) :
 150             event = pygame.event.Event(pygame.MOUSEBUTTONDOWN,
 151                                        pos = pos,
 152                                        button = 1)
 153             pygame.event.post(event)
 154
 155     if wm.btns_released and \
 156         wiiuse.is_released(wm, wiiuse.button['B']):
 157             event = pygame.event.Event(pygame.MOUSEBUTTONUP,
 158                                        pos = pos,
 159                                        button = 1)
 160             pygame.event.post(event)
 161
 162 def _full_mouse_event_cb(self, id, wmp):
 163     ''' callback that emulate a 2 buttons mouse with wheel '''
 164     if id != self.selectedWiimoteIndex : return
 165     wm = wmp[0]
 166     pos = (wm.ir.x, wm.ir.y)
 167     pygame.mouse.set_pos(pos)
 168
 169     eventType = None
 170
 171     if wm.btns :
 172         button = 0
 173         if wiiuse.is_just_pressed(wm, wiiuse.button['B']) :
 174             button = 1
 175         elif wiiuse.is_just_pressed(wm, wiiuse.button['A']) :
 176             button = 2
 177         elif wiiuse.is_just_pressed(wm, wiiuse.button['Up']) :
 178             button = 4
 179         elif wiiuse.is_just_pressed(wm, wiiuse.button['Down']) :
 180             button = 5
 181
 182         if button :
 183             event = pygame.event.Event(pygame.MOUSEBUTTONDOWN,
 184                                        pos = pos,
 185                                        button = button)
 186             pygame.event.post(event)
 187
 188     if wm.btns_released :
 189         button = 0
 190         if wiiuse.is_released(wm, wiiuse.button['B']) :
 191             button = 1
 192         elif wiiuse.is_released(wm, wiiuse.button['A']) :
 193             button = 2
 194         elif wiiuse.is_released(wm, wiiuse.button['Up']) :
 195             button = 4
 196         elif wiiuse.is_released(wm, wiiuse.button['Down']) :
 197             button = 5
 198
 199         if button :
 200             event = pygame.event.Event(pygame.MOUSEBUTTONUP,
 201                                        pos = pos,
 202                                        button = button)
 203             pygame.event.post(event)
 204
 205
 206 WT = None
 207
 208 def init(nmotes, timeout, screenResolution=(660, 370), position='ABOVE'):
 209     '''Initialize the module.'''
 210     global WT
 211     if WT:
 212         return
 213
 214     WT = wiimote_thread(nmotes, timeout, screenResolution, position)
 215
 216     nmotes = get_count()
 217     for i in range(nmotes) :
 218         wm = Wiimote(i) # access the wiimote object
 219         wm.enable_accels(0) # turn off acceleration reporting
 220         wm.enable_ir(1, vres = screenResolution, position=position)
 221
 222
 223 def get_count():
 224     '''How many Wiimotes were found?'''
 225     return WT.get_count()
 226
 227 def quit():
 228     '''Gracefully shutdown the connection and turn off the wiimote leds'''
 229     WT.quit()
 230     WT.join()
 231
 232 class wiimote(object):
 233     '''Object representing a Wiimote'''
 234     def __init__(self, n):
 235         self.wm = WT.wiimotes[n]
 236
 237     def enable_leds(self, m):
 238         '''Control leds. The lower 4 bits map to the 4 leds'''
 239         WT.do(wiiuse.set_leds, self.wm, sum([wiiuse.LED[i] for i in range(4) if m & (1<<i)]))
 240
 241     def enable_rumble(self, on):
 242         '''Control rumble'''
 243         WT.do(wiiuse.rumble, self.wm, on)
 244
 245     def enable_accels(self, on):
 246         '''Control reporting of accelerometer data.'''
 247         WT.do(wiiuse.motion_sensing, self.wm, on)
 248
 249     def enable_ir(self, on, vres=None, position=None, aspect=None):
 250         '''Control reporting IR data.'''
 251         WT.do(wiiuse.set_ir, self.wm, on)
 252         if vres is not None:
 253             WT.do(wiiuse.set_ir_vres, self.wm, *vres)
 254         if position is not None:
 255             WT.do(wiiuse.set_ir_position, self.wm, position)
 256         if aspect is not None:
 257             WT.do(wiiuse.set_aspect_ratio, self.wm, aspect)
 258
 259     def set_flags(self, smoothing=None, continuous=None, threshold=None):
 260         '''Set flags SMOOTHING, CONTINUOUS, ORIENT_THRESH'''
 261         enable = disable = 0
 262         if smoothing is not None:
 263             if smoothing:
 264                 enable |= wiiuse.SMOOTHING
 265             else:
 266                 disable |= wiiuse.SMOOTHING
 267         if continuous is not None:
 268             if continuous:
 269                 enable |= wiiuse.CONTINUOUS
 270             else:
 271                 disable |= wiiuse.CONTINUOUS
 272         if threshold is not None:
 273             if threshold:
 274                 enable |= wiiuse.ORIENT_THRESH
 275             else:
 276                 disable |= wiiuse.ORIENT_THRESH
 277         WT.do(wiiuse.set_flags, self.wm, enable, disable)
 278
 279     def set_orient_thresh(self, thresh):
 280         '''Set orientation threshold'''
 281         WT.do(wiiuse.set_orient_threshold, self.wm, thresh)
 282
 283     def status(self):
 284         '''Trigger a status callback.'''
 285         WT.do(wiiuse.status, self.wm)
 286
 287     def disconnect(self):
 288         '''Disconnect this Wiimote'''
 289         WT.do(wiiuse.disconnect(self.wm))
 290
 291 def Wiimote(n):
 292     '''Get the object for the nth Wiimote'''
 293     return wiimote(n)
 294