def sign_book(self, author, title):
"""Sign current book in hand"""
book = self._setup_book()
if book is None:
return False
book.nbt["author"] = nbt.TagString(author)
book.nbt["title"] = nbt.TagString(title)
# TODO: don't use hard coded id
book.item_id = 387 # written book
self.channels.send("MC|BSign", self._pack_book(book))
def encode_extra(packet):
bbuff = BoundBuffer()
if packet.data['nbt'] is None:
packet.data['nbt'] = nbt._TagEnd()
nbt.TagByte(packet.data['nbt'].id)._render_buffer(bbuff)
if packet.data['nbt'].id == nbt.TAG_COMPOUND:
nbt.TagString(packet.data['nbt'].name)._render_buffer(bbuff)
packet.data['nbt']._render_buffer(bbuff)
return bbuff.flush()
def decode_extra(packet, bbuff):
tag_type = datautils.unpack(MC_BYTE, bbuff)
if tag_type == nbt.TAG_COMPOUND:
name = nbt.TagString(buffer=bbuff).value
nbt_data = nbt.TagCompound(buffer=bbuff)
nbt_data.name = name
packet.data['nbt'] = nbt_data
else:
assert (tag_type == nbt.TAG_END)
packet.data['nbt'] = None
return packet
def edit_book(self, pages):
"""Set the pages of current book in hand"""
book = self._setup_book()
if book is None:
return False
nbtpages = nbt.TagList(nbt.TagString)
for i, page in enumerate(pages):
if i >= constants.BOOK_MAXPAGES:
break
nbtpages.insert(i, nbt.TagString(page))
book.nbt["pages"] = nbtpages
self.channels.send("MC|BEdit", self._pack_book(book))
def pack_slot(slot):
o = pack(MC_SHORT, slot['id'])
if slot['id'] != -1:
o += pack(MC_BYTE, slot['amount'])
o += pack(MC_SHORT, slot['damage'])
if 'enchants' in slot:
ench = slot['enchants']
bbuff = BoundBuffer()
nbt.TagByte(ench.id)._render_buffer(bbuff)
nbt.TagString(ench.name)._render_buffer(bbuff)
ench._render_buffer(bbuff)
o += bbuff.flush()
else:
o += pack(MC_BYTE, 0)
return o
def unpack_slot(bbuff):
slot = {}
slot['id'] = unpack(MC_SHORT, bbuff)
if slot['id'] != -1:
slot['amount'] = unpack(MC_BYTE, bbuff)
slot['damage'] = unpack(MC_SHORT, bbuff)
nbt_start = unpack(MC_BYTE, bbuff)
if nbt_start > 0:
if nbt_start != nbt.TAG_COMPOUND:
return None
name = nbt.TagString(buffer=bbuff).value
ench = nbt.TagCompound(buffer=bbuff)
ench.name = name
slot['enchants'] = ench
return slot