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|
#! /usr/bin/env python
#This python module is part of the Jam2Jam XO Activity, March, 2010
#
#Copyright (C) 2010 Thorin Kerr & Andrew Brown
#
#This program is free software; you can redistribute it and/or modify
#it under the terms of the GNU General Public License as published by
#the Free Software Foundation; either version 2 of the License, or any
#later version.
#
#This program is distributed in the hope that it will be useful, but
#WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
#GNU General Public License for more details.
#
#You should have received a copy of the GNU General Public License
#along with this program; if not, write to the Free Software
#Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
import subprocess
import logging, olpcgames
import olpcgames.pausescreen as pausescreen
import olpcgames.mesh as mesh
from olpcgames import camera
from sugar.presence import presenceservice
from threading import Timer
from math import ceil, sqrt
from City.CsHelpers import *
from City.Parameters import Instrument
import City.City as City
log = logging.getLogger( 'City run' )
log.setLevel( logging.DEBUG )
def buildInstruments(names, imgpath, screensize, scale):
"returns a list of Instrument objects, loaded with images"
Instruments = [Instrument(names[i]) for i in range(len(names))]
imagefiles = ResourceList(imgpath, '.png')
startx = 0
for i in Instruments:
for f in imagefiles:
if i.name.startswith(f[:4]):
i.loadImage(ImagePath+'/'+f, scale)
i.x = screensize[0] * 0.8 - startx
i.y = (screensize[1] - i.image.get_size()[1]) * 0.5
i.Touch = True
startx = startx + (screensize[0] * 0.8) / len(Instruments)
return Instruments
def getInstrumentParameters(scene, inm):
"return a list of parameters values for the instrument, in order of PNAMES"
pobj = scene.Params
result = []
for pnm in PNAMES:
result.append(pobj.getValue(pnm, inm))
return result
def setInstrumentParameters(scene, inm, vlst):
"sets parameters for an instrument"
pobj = scene.Params
for pnm,val in zip(PNAMES, vlst):
pobj.setValue(pnm, inm, val)
return True
KEYCODES = {276:"Nudge|Left", 275:"Nudge|Right", 274:"Nudge|Down", 273:"Nudge|Up",
260:"Nudge|Left", 262:"Nudge|Right", 258:"Nudge|Down", 264:"Nudge|Up",
263: "Instrument|Bass", 257:"Instrument|Chords", 265:"Instrument|Lead", 259:"Instrument|Drums",
49: "Instrument|Bass", 50:"Instrument|Chords", 51:"Instrument|Lead", 52:"Instrument|Drums",
112: "Parameter|Pitch", 118:"Parameter|Volume", 100:"Parameter|Density", 108:"Parameter|Length", 116:"Parameter|Timbre",
304: "Modifier|Shift"}
class jamScene( object ):
def __init__(self, screen, scene = 'City', key = 'A', mode = 'minor', tempo = 120, initial_parameters = {}):
self.scene = City.ScenePlayer(scene, key, mode, tempo, initial_parameters)
self.music_player = City.makePlayer(self.scene)
self.beatEstimator = beatEstimator(self.music_player.tempoMult, 0.17, self.music_player.beatlimit)
self.pending_instrument_assignment = []
self.latency_counter = 0
self.latency = [0.07]
self.latency_time_ID = {}
self._syncloop_running = 0
global schedEvent, now
schedEvent = self.scene.TimeQueue.schedEvent
now = self.scene.cs.perfTime
self.screen = screen
screenRect = screen.get_rect()
self.screenSize = screen.get_size()
self.playArea = pygame.Rect(screenRect.left,screenRect.top, screenRect.width, screenRect.height * 0.8)
if olpcgames.ACTIVITY:
olpcgames.ACTIVITY.playArea = self.playArea
olpcgames.ACTIVITY.jamScene = self
self.panelArea = pygame.Rect(screenRect.left,screenRect.height * 0.8, screenRect.width, screenRect.height * 0.2)
self.TemplateInstruments = buildInstruments(INAMES, ImagePath, self.playArea.size, 2)
for oni in self.TemplateInstruments:
oni.activate()
self.PanelInstruments = buildInstruments(INAMES, ImagePath, self.panelArea.size, 1.5)
for pnl in self.PanelInstruments:
pnl.Touch = True
pnl.activate()
imagesize = self.TemplateInstruments[0].image.get_size()
self.panelSize = (self.screenSize[0], imagesize[1] + 10)
#movement limits
self.xmin = self.playArea.left + imagesize[0] * 0.5
self.xmax = self.playArea.right - imagesize[0] * 0.5
self.ymax = self.playArea.bottom - imagesize[1] * 0.5
self.ymin = self.playArea.top + imagesize[1] * 0.5
#interface key codes
self.keycode = KEYCODES
#various states
self.keyActions = []
self.selectedInstrument = self.TemplateInstruments[0]
self.occupiedInstruments = {self.selectedInstrument.name: None}
self.myself = None
self.sharer = False
self.connected = False
self.timeTally = []
self.running = True
self.Vparam = "Pitch"
self.Hparam = "Density"
#interface controls
self.movingInstrument = False
#initial draw
panelColour = (0,0,0)
self.snap_store = (olpcgames.ACTIVITY.snap_store if platform == 'Sugar' else [])
self.feedbackgroundImage = None
if self.screenSize == (1200, 780):
self.setbackgroundImage(pygame.image.load(ImagePath + "/jam2jamXO_2.png").convert())
else:
bgi = pygame.image.load(ImagePath + "/jam2jamXO_2.png").convert()
bgi_scaled = pygame.transform.scale(bgi, self.playArea.size)
self.setbackgroundImage(bgi_scaled)
self.panel = pygame.Surface((self.panelArea.width, self.panelArea.height))
self.panel.fill(panelColour)
self.screen.blit(self.panel, self.panelArea)
pygame.display.flip()
for pnl in self.PanelInstruments: pnl.y = pnl.y() + self.playArea.height
def setbackgroundImage(self, img):
self.backgroundImage = img
self.screen.blit(self.backgroundImage, (0,0), self.playArea)
self.selectedInstrument.Touch = True
def updatePanel(self):
"redraw panel icons"
for pi in self.PanelInstruments:
if not pi.Touch:
pass
else:
if pi.name in self.occupiedInstruments:
pi.deactivate()
else:
pi.activate()
self.screen.blit(pi.image, pi.Rect)
pi.Touch = False
def runloop(self):
"main game loop"
clock = pygame.time.Clock()
imgcnt = 0
self.music_player.playLoop(now())
while self.running:
events = (pausescreen.get_events(sleep_timeout = 43200) if platform == 'Sugar' else pygame.event.get())
for event in events:
self.eventAction(event)
for act in self.keyActions:
self.interfaceAction(act)
if self.feedbackgroundImage:
self.setbackgroundImage(self.feedbackgroundImage)
self.feedbackgroundImage = None
self.updateInspos()
self.updatePanel()
if platform == 'Sugar': currentcnt = len(self.snap_store)
else: currentcnt = 0
if imgcnt == currentcnt:
pass
else:
self.music_player.picture_cycle = [self, True]
imgcnt = currentcnt
pygame.display.flip()
clock.tick(25)
def updateInspos(self):
"animate selected instrument."
ins = self.selectedInstrument
if ins.Touch:
xval = self.scene.Params.getValue(self.Hparam, ins.name)
yval = self.scene.Params.getValue(self.Vparam, ins.name)
xpos = rescale(xval, 0,1,self.xmin, self.xmax)
ypos = rescale(yval, 0,1,self.ymax, self.ymin)
self.screen.blit(self.backgroundImage, ins.Rect, ins.Rect)
ins.ctr = (xpos, ypos)
ins.Touch = False
self.screen.blit(ins.image, ins.Rect)
def sendSync(self):
"Tell audio loop to broadcast time and beat messages"
if self._syncloop_running:
self.music_player.sendSync = True
log.info("sent sync")
schedEvent(now() + 10.7, self.sendSync)
def setselectedInstrument(self, ins):
"select the instrument onscreen"
self.selectedInstrument = ins
if ins.name not in self.occupiedInstruments:
self.occupiedInstruments.update({ins.name:str(self.myself)})
self.selectedInstrument.Touch = True
def eventAction(self, event):
"detect events, and select action"
if event.type == pygame.QUIT:
self.music_player.freeze()
self.running = False
elif event.type == pygame.USEREVENT:
if hasattr(event, "action"):
if event.action.startswith("Parameter"):
args = event.action.split('|')
if args[1] == "Horizontal":
self.Hparam = args[2]
self.selectedInstrument.Touch = True
elif args[1] == "Vertical":
self.Vparam = args[2]
self.selectedInstrument.Touch = True
else:
raise ValueError, 'Unknown Parameter Action %s' %args
elif event.action.startswith('Reload'):
#should look always like this: "Reload|name|key:mode|tempo|defaults"
args = event.action.split('|')
name = args[1]
key = ('E' if args[2] == 'None' else args[2])
mode = ('minor' if args[3] == 'None' else args[3])
tempo = (117 if args[4] == 'None' else int(args[4]))
d = eval(args[5])
defaults = (d if d else {})
self.load_scene(name, key, mode, tempo, defaults) #this call blocks
if self.pending_instrument_assignment: #now check if we are waiting to assign instruments and params.
self.receiveMessage("AuthorisedInstrument|%s|%s" %(self.pending_instrument_assignment[0], self.pending_instrument_assignment[1]), self.myself)
elif event.action.startswith("Shared"):
self.sharer = "Pending"
log.info("Sharing activity")
elif event.action.startswith("Joined"):
log.info("Joined Activity")
else:
log.debug("unknown parameter change: %s", event.action)
else: log.debug("ignoring USEREVENT %s", event)
elif event.type == pygame.MOUSEBUTTONDOWN:
x,y = event.pos
Ins = self.selectedInstrument
if Ins.Rect.collidepoint(x,y):
self.movingInstrument = Ins
else:
for Panndx in range(len(self.PanelInstruments)):
Pan = self.PanelInstruments[Panndx]
if Pan.Rect.collidepoint(x,y):
if Pan.active: self.requestInstrument(Pan.name)
break
elif event.type == pygame.MOUSEMOTION:
if self.movingInstrument:
insname = self.movingInstrument.name
self.scene.Params.setValue(self.Hparam, insname, rescale(event.pos[0], self.playArea.left, self.playArea.right, 0, 1))
self.scene.Params.setValue(self.Vparam, insname, limit(rescale(event.pos[1], self.playArea.bottom, self.playArea.top, 0, 1), 0,1))
self.movingInstrument.Touch = True
elif event.type == pygame.MOUSEBUTTONUP:
self.movingInstrument = False
elif platform == 'Sugar' and event.type == mesh.CONNECT:
log.info( """Connected to the mesh!| %s""", event )
self.connected = True
self.music_player.resetBeat()
elif event.type == pygame.KEYDOWN:
try:
iaction = self.keycode[event.key]
self.keyActions.append(iaction)
except KeyError:
pass
elif event.type == pygame.KEYUP:
try:
self.keyActions.remove(self.keycode[event.key])
except ValueError: pass
except KeyError: pass
elif self.connected and event.type == mesh.PARTICIPANT_ADD:
if not self.myself: self.myself = mesh.my_handle()
if event.handle == self.myself:
if self.sharer == "Pending": self.sharer = self.myself
elif len(self.occupiedInstruments) == 4:
pass
else:
if self.sharer == self.myself:
giveupInstrument = [p for p in self.PanelInstruments if p.active][0].name
giveupparameters = getInstrumentParameters(self.scene, giveupInstrument)
mesh.send_to(event.handle, "Welcome|%s|%s|%s" %(self.scene.scene_name, giveupInstrument, giveupparameters))
self.stealInstrument(giveupInstrument, handle = event.handle)
if self.connected: mesh.broadcast('Occupied|%s' %self.occupiedInstruments)
olpcgames.ACTIVITY.J2JToolbar.deactivate_scene_change()
if len(self.occupiedInstruments) >= 2 and not self._syncloop_running:
self._syncloop_running = True
self.sendSync()
else:
self.latency_checker()
log.info("Waiting to be assigned instrument from sharer")
elif self.connected and event.type == mesh.PARTICIPANT_REMOVE:
"return instrument to the sharer if a jammer leaves."
try:
relname = [n for n in self.occupiedInstruments if self.occupiedInstruments[n] == str(event.handle)][0]
relpanel = [p for p in self.PanelInstruments if p.name == relname][0]
del self.occupiedInstruments[relname]
relpanel.Touch = True
if self.sharer == self.myself:
self.music_player.mutelist.remove(relname)
if len(self.occupiedInstruments) == 1:
olpcgames.ACTIVITY.J2JToolbar.reactivate_scene_change()
if len(self.occupiedInstruments) <= 1:
self._syncloop_running = False
except IndexError: log.debug("Index error while removing jammer %s occ = %s" %(str(event.handle), self.occupiedInstruments))
except KeyError: pass
except ValueError: pass
if self.sharer == self.myself: mesh.broadcast('Occupied|%s' %self.occupiedInstruments)
log.info( """Removed jammer| %s""", event )
elif self.connected and (event.type == mesh.MESSAGE_MULTI or event.type == mesh.MESSAGE_UNI):
if event.handle == self.myself:
pass
else:
self.receiveMessage(event.content, event.handle)
def interfaceAction(self, iaction):
if iaction.startswith("Nudge"):
direction = iaction.split("|")[1]
insname = self.selectedInstrument.name
if direction == "Left" or direction == "Right":
param = self.Hparam
else:
param = self.Vparam
currentValue = self.scene.Params.getValue(param, insname)
newvalue = limit((currentValue - 0.03 if direction == "Left" or direction == "Down" else currentValue + 0.03), 0, 1)
self.scene.Params.setValue(param, insname, newvalue)
self.selectedInstrument.Touch = True
if newvalue == 0 or newvalue == 1:
try:
self.keyActions.remove(iaction)
except ValueError: pass
elif iaction.startswith("Instrument"):
ins = iaction.split('|')[1]
self.requestInstrument(ins)
try:
self.keyActions.remove(iaction)
except ValueError: pass
elif iaction.startswith("Parameter"):
pm = iaction.split('|')[1]
if "Modifier|Shift" in self.keyActions:
print "shift key is on"
if olpcgames.ACTIVITY:
olpcgames.ACTIVITY.J2JToolbar.set_vertical_parameter(pm)
else:
self.Vparam = pm
else:
print "shift key is off"
if olpcgames.ACTIVITY:
olpcgames.ACTIVITY.J2JToolbar.set_horizontal_parameter(pm)
else:
self.Hparam = pm
try:
self.keyActions.remove(iaction)
except ValueError: pass
else: pass
def stealInstrument(self, stealname, releasename = False, handle = False):
"attempts to deactivate an instrument, and make it unavailable for selection"
if not handle: handle = self.myself
if stealname == self.selectedInstrument.name:
log.info("ignoring request to steal %s: already active" %stealname)
return False
elif stealname in self.occupiedInstruments and not releasename:
log.info ("ignoring request to steal %s: already occupied and no release instrument provided" %stealname)
return False
else:
paneli = [pnli for pnli in self.PanelInstruments if pnli.name == stealname][0]
self.occupiedInstruments.update({stealname:str(handle)})
self.music_player.mutelist.append(stealname)
if releasename:
relname = releasename
relpanel = [p for p in self.PanelInstruments if p.name == relname][0]
try:
del self.occupiedInstruments[relname]
relpanel.Touch = True
self.music_player.mutelist.remove(relname)
except KeyError: pass
except ValueError: pass
paneli.Touch = True
return True
def requestInstrument(self, name):
"instrument selections should go through this first. To request an instrument, you need to give one up"
if name in self.occupiedInstruments:
log.info('failed instrument selection, as instrument currently occupied')
else:
if self.connected and (self.sharer != self.myself):
releasename = self.selectedInstrument.name
iparams = getInstrumentParameters(self.scene, releasename)
requestname = name
mesh.send_to(self.sharer, 'JammerRequest|%s|%s|%s' %(releasename, requestname, iparams))
else:
self.reselectInstruments(name)
if self.connected: mesh.broadcast('Occupied|%s' %self.occupiedInstruments)
def receiveMessage(self, instruction, handle):
if instruction.startswith("Welcome"):
messages = instruction.split("|")
self.sharer = handle
jam_scene = messages[1]
self.pending_instrument_assignment = [messages[2],messages[3]]
self.select_activity_scene(jam_scene)
if self.sharer != self.myself:
olpcgames.ACTIVITY.J2JToolbar.deactivate_scene_change()
elif instruction.startswith("Beat"):
splitvals = instruction.split('|')
receivedBeat = int(splitvals[1])
time_now = now()
self.beatEstimator.addBeat(receivedBeat, time_now)
if abs(receivedBeat - self.beatEstimator.beat_match(time_now)) > 0.17:
pass
else:
latency = (sum(self.latency) / len(self.latency))
tmult = self.music_player.tempoMult
latency = latency * 0.25 + 0.04 #this might be XO 1.0 specific
beatadvance = int(ceil(latency * 1/tmult))
scheduled_time = now() + ((beatadvance * tmult) - latency)
self.music_player.Cease()
self.music_player.playLoop(scheduled_time, (receivedBeat + beatadvance) % self.music_player.beatlimit)
elif instruction.startswith("JammerRequest"):
"In theory only the sharer ever gets this message"
split = instruction.split('|')
releasename = split[1]
requestname = split[2]
iparams = eval(split[3])
stealresult = self.stealInstrument(requestname, releasename, handle)
if stealresult:
setInstrumentParameters(self.scene, releasename, iparams)
rqparams = getInstrumentParameters(self.scene, requestname)
mesh.send_to(handle, "AuthorisedInstrument|%s|%s" %(requestname, rqparams))
mesh.broadcast('Occupied|%s' %self.occupiedInstruments)
else:
mesh.send_to(handle, "DeniedInstrument|%s")
elif instruction.startswith("AuthorisedInstrument"):
"In theory only a 'joiner' receives this message"
msg = instruction.split('|')
ai = msg[1]
params = eval(msg[2])
setInstrumentParameters(self.scene, ai, params)
self.reselectInstruments(ai)
elif instruction.startswith("DeniedInstrument"):
di = instruction.split('|')[1]
log.info("Instrument request for %s was denied by sharer." %di)
elif instruction.startswith("Occupied"):
insdict = eval(instruction.split('|')[1])
self.occupiedInstruments = insdict
for pni in self.PanelInstruments:
if pni.name in insdict:
pni.deactivate()
else:
pni.activate()
elif instruction.startswith("LateReq"):
id = instruction.split('|')[1]
mesh.send_to(handle, "LateResp|%s" %id)
elif instruction.startswith("LateResp"):
id = int(instruction.split('|')[1])
try:
t = self.latency_time_ID[id]
del self.latency_time_ID[id]
result = (now() - t) / 2
avglat = sum(self.latency) / len(self.latency)
diffs = [(val - avglat) ** 2 for val in self.latency]
stddev = sqrt(sum(diffs) / len(diffs))
if id == 0:
del self.latency[0]
self.latency.append(result)
elif result > (avglat + stddev):
pass
elif result < (avglat - stddev) and len(self.latency) > 6:
pass
elif len(self.latency) > 12:
del self.latency[0]
self.latency.append(result)
else:
self.latency.append(result)
except KeyError:
log.info('Unmatched time ID %s' %id)
else:
log.debug("UNKNOWN INSTRUCTION RECEIVED :%s", instruction)
def reselectInstruments(self, name):
"Swaps the instrument on screen and selects the active Panel Instruments available to this user"
oldInstrument = self.selectedInstrument
oldname = oldInstrument.name
if (self.sharer == self.myself) or not self.connected:
del self.occupiedInstruments[oldname]
self.occupiedInstruments.update({name:str(self.myself)})
self.screen.blit(self.backgroundImage, oldInstrument.Rect, oldInstrument.Rect)
oldInstrument.Touch = False
self.setselectedInstrument([i for i in self.TemplateInstruments if i.name == name][0])
for w in self.PanelInstruments:
if w.name == name or w.name == oldname:
w.Touch = True
if self.connected:
if self.sharer == self.myself:
self.music_player.mutelist = [j for j in self.occupiedInstruments if j != self.selectedInstrument.name]
else:
self.music_player.mutelist = [k.name for k in self.TemplateInstruments if k.name != self.selectedInstrument.name]
def load_scene(self, name, key, mode, tempo, defaults = {}):
self.music_player.freeze()
self.music_player.cs.perf.Stop()
self.music_player.cs.perf.Join()
self.music_player.cs.csound.cleanup()
sc = City.ScenePlayer(name, key, mode, tempo, defaults)
mp = City.makePlayer(sc)
global schedEvent, now
schedEvent = sc.TimeQueue.schedEvent
now = sc.cs.perfTime
self.scene = sc
self.music_player = mp
self.music_player.playLoop(now())
self.selectedInstrument.Touch = True
self.music_player.picture_cycle = [self, True]
def select_activity_scene(self, scene_name, key = None, mode = None, tempo = None, defaults = None):
current_scene_name = self.scene.scene_name
if scene_name == current_scene_name:
if self.pending_instrument_assignment:
self.receiveMessage("AuthorisedInstrument|%s|%s" %(self.pending_instrument_assignment[0], self.pending_instrument_assignment[1]), self.myself)
elif not olpcgames.ACTIVITY:
k = (key if key else 'G')
m = (mode if mode else 'major')
t = (int(tempo) if tempo else 164)
d = (eval(defaults) if defaults else {})
self.load_scene(scene_name, k,m,t,d)
else:
toolbar = olpcgames.ACTIVITY.J2JToolbar
try:
ndx = [n[0] for n in toolbar.scenes].index(scene_name)
toolbar._Scene_combo.combo.set_active(ndx)
except ValueError:
log.info('request to change to unknown scene: %s', scene_name)
def latency_checker(self):
if self.sharer:
self.latency_time_ID[self.latency_counter] = now()
mesh.send_to(self.sharer, "LateReq|%s" %self.latency_counter)
self.latency_counter += 1
if self.latency_counter < 10:
Timer(3.5, self.latency_checker, ()).start()
elif self.latency_counter < 50:
Timer(6.75, self.latency_checker, ()).start()
else:
log.info('turning off latency checking')
#pygame main loop
def main():
# check automatic power management
try:
sugar_pm_check = subprocess.Popen("sugar-control-panel -g automatic_pm", shell=True, stdout=subprocess.PIPE)
sugar_pm_result = sugar_pm_check.communicate()[0]
if sugar_pm_result.startswith("on"):
subprocess.Popen("sugar-control-panel -s automatic_pm off", shell=True)
_spm_off = True
else:
_spm_off = False
except OSError:
_spm_off = False
log.info("Failed to detect and set automatic power management")
screenSize_X, screenSize_Y = (olpcgames.ACTIVITY.game_size if platform=="Sugar" else (1024,640))
toolbarheight = 45
screen = pygame.display.set_mode((screenSize_X, screenSize_Y - toolbarheight))
a_,b_,c_,d_ = pygame.cursors.load_xbm("arrow40b.xbm", "arrow40b-mask.xbm")
pygame.mouse.set_cursor(a_,b_,c_,d_)
jam = jamScene(screen, tempo = 120)
jam.runloop()
pygame.quit()
jam.music_player.freeze()
jam.music_player.cs.perf.Stop()
jam.music_player.cs.csound.cleanup()
if _spm_off: subprocess.Popen("sugar-control-panel -s automatic_pm on", shell=True)
if __name__ == '__main__':
logging.basicConfig()
print "running as main"
main()
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