def getAiPath(self, start, goal):
bfsQueue = Queue()
used = set()
currentState = (start, [], 1)
bfsQueue.push(currentState)
while (not bfsQueue.isEmpty() and
not self.isGoalState(currentState[0], goal)):
currentState = bfsQueue.pop()
if (currentState[0] not in used
and not self.isGoalState(currentState[0], goal)):
used.add(currentState[0])
for state in self.getDirections(currentState):
newState = (state[0], [], 1)
for step in currentState[1]:
newState[1].append(step)
newState[1].append(state[1])
bfsQueue.push(newState)
print start, goal, currentState[1]
return currentState[1]
class Downloader(object):
"""constructor"""
def __init__(self, connection):
self.download_queue = Queue()
self.current_download = None
self.download_status = 'not_ready'
self.connection = connection
self.dcc_connection = None
"""start downloader"""
def start(self):
self.download_status = 'ready'
"""stop downloader"""
def stop(self):
self.download_status = 'not_ready'
"""is it ready for download?"""
def is_ready(self):
return (self.download_status == 'ready')
"""add manga to download_queue"""
def download(self, manga):
print "Adding %s to download queue" % manga.title
self.download_queue.push(manga)
"""check for download status and determine action to take"""
def check(self):
if self.is_ready():
self.download_next()
elif ( self.download_status == 'requesting_download' and
self.current_download.expired_request_time < time.time() ):
self.finish_download()
"""pop an item from download_queue and request download"""
def download_next(self):
assert(self.is_ready())
if self.current_download is not None and not self.current_download.isDownloaded():
# restart download
manga = self.current_download.manga
else:
manga = self.download_queue.pop()
if (manga is None):
return
print "Requesting download of %s" % manga.title
self.current_download = DownloadItem(manga)
self.connection.privmsg(manga.bot, "XDCC SEND #%d" % manga.pack_id)
self.download_status = 'requesting_download'
"""initiate a manga download connection"""
def initiate_download(self, file_name, file_size, dcc_connection):
print "Downloading %s" % self.current_download.manga.title
self.download_status = 'downloading'
self.dcc_connection = dcc_connection
self.current_download.initiateDownload(file_name, file_size)
"""receive download data"""
def receive_data(self, data):
self.current_download.appendData(data)
self.dcc_connection.privmsg(struct.pack("!I", self.current_download.received_bytes))
"""clean up dcc connection and its state"""
def finish_download(self):
if (self.current_download.isDownloaded()):
print "Finished downloading %s\n" % self.current_download.manga.title
else:
print "Failed downloading %s" % self.current_download.manga.title
self.current_download.finishDownload()
self.download_status = 'ready'
self.dcc_connection = None
