Simplify directory structure
This commit is contained in:
0
protocol/__init__.py
Normal file
0
protocol/__init__.py
Normal file
140
protocol/managers.py
Normal file
140
protocol/managers.py
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@@ -0,0 +1,140 @@
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import os
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from math import floor
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import json
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from minecraft.networking.packets import clientbound, serverbound
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from protocol import packets
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class DataManager:
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def __init__(self, directory):
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self.blocks = {}
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self.blocks_states = {}
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self.blocks_properties = {}
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self.registries = {}
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self.biomes = {}
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self.entity_type = {}
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if not os.path.isdir(directory):
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raise FileNotFoundError("%s is not a valid directory")
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if not os.path.isfile("%s/registries.json"%(directory)):
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raise FileNotFoundError("%s is not a valid minecraft data directory")
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with open("%s/blocks.json"%(directory)) as f:
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blocks = json.loads(f.read())
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for x in blocks:
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for s in blocks[x]['states']:
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self.blocks_states[s['id']] = x
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self.blocks_properties[s['id']] = s.get('properties', {})
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with open("%s/registries.json"%(directory)) as f:
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registries = json.loads(f.read())
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#for x in registries["minecraft:biome"]["entries"]:
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# self.biomes[registries["minecraft:biome"]["entries"][x]["protocol_id"]] = x
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for x in registries["minecraft:entity_type"]["entries"]:
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self.entity_type[registries["minecraft:entity_type"]["entries"][x]["protocol_id"]] = x
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class ChunksManager:
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def __init__(self, data_manager):
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self.data = data_manager
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self.chunks = {}
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self.biomes = {}
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def handle_block(self, block_packet):
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self.set_block_at(block_packet.location.x, block_packet.location.y, block_packet.location.z, block_packet.block_state_id)
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#self.print_chunk(self.get_chunk(floor(block_packet.location.x/16), floor(block_packet.location.y/16), floor(block_packet.location.z/16)), block_packet.location.y%16)
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#print('Block %s at %s'%(blocks_states[block_packet.block_state_id], block_packet.location))
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def handle_multiblock(self, multiblock_packet):
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for b in multiblock_packet.records:
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self.handle_block(b)
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def handle_chunk(self, chunk_packet):
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for i in chunk_packet.chunks:
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self.chunks[(chunk_packet.x, i, chunk_packet.z)] = chunk_packet.chunks[i]
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self.biomes[(chunk_packet.x, None, chunk_packet.z)] = chunk_packet.biomes # FIXME
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def register(self, connection):
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connection.register_packet_listener(self.handle_block, packets.BlockChangePacket)
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connection.register_packet_listener(self.handle_multiblock, packets.MultiBlockChangePacket)
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connection.register_packet_listener(self.handle_chunk, packets.ChunkDataPacket)
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def get_chunk(self, x, y, z):
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index = (x, y, z)
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if not index in self.chunks:
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raise ChunkNotLoadedException(index)
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return self.chunks[index]
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def get_loaded_area(self, ignore_empty=False):
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first = next(iter(self.chunks.keys()))
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x0 = x1 = first[0]
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y0 = y1 = first[1]
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z0 = z1 = first[2]
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for k in self.chunks.keys():
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if ignore_empty and self.chunks[k].empty:
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continue
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x0 = min(x0, k[0])
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x1 = max(x1, k[0])
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y0 = min(y0, k[1])
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y1 = max(y1, k[1])
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z0 = min(z0, k[2])
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z1 = max(z1, k[2])
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return ((x0,y0,z0),(x1,y1,z1))
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def get_block_at(self, x, y, z):
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c = self.get_chunk(floor(x/16), floor(y/16), floor(z/16))
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return c.get_block_at(x%16, y%16, z%16)
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def set_block_at(self, x, y, z, block):
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c = self.get_chunk(floor(x/16), floor(y/16), floor(z/16))
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c.set_block_at(x%16, y%16, z%16, block)
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class ChunkNotLoadedException(Exception):
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def __str__(self):
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pos = self.args[0]
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return "Chunk at %d %d %d not loaded (yet?)"%(pos[0], pos[1], pos[2])
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class ChatManager:
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def __init__(self, global_state):
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self.g = global_state
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self.handler = None
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self.g.connection.register_packet_listener(self.print_chat, clientbound.play.ChatMessagePacket)
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def translate_chat(self, data):
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if isinstance(data, str):
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return data
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elif 'extra' in data:
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return ''.join([self.translate_chat(x) for x in data['extra']])
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elif 'text' in data:
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return data['text']
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elif 'translate' in data:
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return data['translate']
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else:
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print(data)
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return '?'
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def print_chat(self, chat_packet):
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try:
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source = chat_packet.field_string('position')
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text = self.translate_chat(json.loads(chat_packet.json_data))
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print('[%s] %s'%(source, text))
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except Exception as ex:
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print('Exception %r on message (%s): %s' % (ex, chat_packet.field_string('position'), chat_packet.json_data))
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if self.handler:
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self.handler((source, text))
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def set_handler(self, func):
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self.handler = func
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def send(self, text):
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if not text:
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# Prevents connection bug when sending empty chat message
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return
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packet = serverbound.play.ChatPacket()
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packet.message = text
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self.g.connection.write_packet(packet)
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248
protocol/packets.py
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248
protocol/packets.py
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@@ -0,0 +1,248 @@
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from math import floor
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from minecraft.networking.packets import Packet, PacketBuffer
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from minecraft.networking.types import (
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VarInt, Integer, Boolean, UnsignedByte, Long, Short,
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multi_attribute_alias, Vector, UnsignedLong
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)
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from protocol.types import Nbt
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from minecraft.networking.packets import Packet
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from minecraft.networking.types import (
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VarInt, Integer, UnsignedByte, Position, Vector, MutableRecord,
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attribute_alias, multi_attribute_alias, Long, Boolean, VarLong,
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)
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class BlockChangePacket(Packet):
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id = 0x0B
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packet_name = 'block change'
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definition = [
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{'location': Position},
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{'block_state_id': VarInt}]
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block_state_id = 0
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# For protocols < 347: an accessor for (block_state_id >> 4).
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@property
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def blockId(self):
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return self.block_state_id >> 4
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@blockId.setter
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def blockId(self, block_id):
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self.block_state_id = (self.block_state_id & 0xF) | (block_id << 4)
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# For protocols < 347: an accessor for (block_state_id & 0xF).
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@property
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def blockMeta(self):
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return self.block_state_id & 0xF
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@blockMeta.setter
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def blockMeta(self, meta):
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self.block_state_id = (self.block_state_id & ~0xF) | (meta & 0xF)
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# This alias is retained for backward compatibility.
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blockStateId = attribute_alias('block_state_id')
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class MultiBlockChangePacket(Packet):
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id = 0x3B
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packet_name = 'multi block change'
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fields = 'chunk_x', 'chunk_z', 'records'
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# Access the 'chunk_x' and 'chunk_z' fields as a tuple.
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chunk_pos = multi_attribute_alias(tuple, 'chunk_x', 'chunk_z')
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class Record(MutableRecord):
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__slots__ = 'x', 'y', 'z', 'block_state_id', 'location'
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def __init__(self, **kwds):
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self.block_state_id = 0
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super(MultiBlockChangePacket.Record, self).__init__(**kwds)
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# Access the 'x', 'y', 'z' fields as a Vector of ints.
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position = multi_attribute_alias(Vector, 'x', 'y', 'z')
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# For protocols < 347: an accessor for (block_state_id >> 4).
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@property
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def blockId(self):
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return self.block_state_id >> 4
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@blockId.setter
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def blockId(self, block_id):
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self.block_state_id = self.block_state_id & 0xF | block_id << 4
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# For protocols < 347: an accessor for (block_state_id & 0xF).
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@property
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def blockMeta(self):
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return self.block_state_id & 0xF
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@blockMeta.setter
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def blockMeta(self, meta):
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self.block_state_id = self.block_state_id & ~0xF | meta & 0xF
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# This alias is retained for backward compatibility.
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blockStateId = attribute_alias('block_state_id')
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def read(self, file_object, parent):
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data = VarLong.read(file_object)
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self.block_state_id = int(data >> 12)
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self.x = int(data >> 8 & 0xf)
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self.z = int(data >> 4 & 0xf)
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self.y = int(data & 0xf)
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# Absolute position in world to be compatible with BlockChangePacket
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self.location = Vector(self.position.x + parent.chunk_x*16, self.position.y, self.position.z + parent.chunk_z*16)
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def write(self, packet_buffer):
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raise
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UnsignedByte.send(self.x << 4 | self.z & 0xF, packet_buffer)
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UnsignedByte.send(self.y, packet_buffer)
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VarInt.send(self.block_state_id, packet_buffer)
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def read(self, file_object):
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coords = Long.read(file_object)
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self.chunk_x = int(coords >> 42 & 0x3fffff)
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self.chunk_z = int(coords >> 20 & 0x3fffff)
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self.chunk_y = int(coords & 0xfffff)
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self.unknown = Boolean.read(file_object)
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array_size = VarInt.read(file_object)
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self.records = []
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for i in range(array_size):
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record = self.Record()
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record.read(file_object, self)
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self.records.append(record)
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def write_fields(self, packet_buffer):
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raise
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Integer.send(self.chunk_x, packet_buffer)
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Integer.send(self.chunk_z, packet_buffer)
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VarInt.send(len(self.records), packet_buffer)
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for record in self.records:
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record.write(packet_buffer)
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class ChunkDataPacket(Packet):
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id = 0x20
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packet_name = 'chunk data'
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fields = 'x', 'bit_mask_y', 'z', 'full_chunk'
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def read(self, file_object):
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self.x = Integer.read(file_object)
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self.z = Integer.read(file_object)
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self.full_chunk = Boolean.read(file_object)
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self.bit_mask_y = VarInt.read(file_object)
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self.heightmaps = Nbt.read(file_object)
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self.biomes = []
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if self.full_chunk:
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biomes_length = VarInt.read(file_object)
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for i in range(biomes_length):
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self.biomes.append(VarInt.read(file_object))
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size = VarInt.read(file_object)
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self.data = file_object.read(size)
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size_entities = VarInt.read(file_object)
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self.entities = []
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for i in range(size_entities):
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self.entities.append(Nbt.read(file_object))
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self.decode_chunk_data()
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def write_fields(self, packet_buffer):
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Integer.send(self.x, packet_buffer)
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Integer.send(self.z, packet_buffer)
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Boolean.send(self.full_chunk, packet_buffer)
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VarInt.send(self.bit_mask_y, packet_buffer)
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Nbt.send(self.heightmaps, packet_buffer)
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if self.full_chunk:
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for i in range(1024):
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Integer.send(self.biomes[i], packet_buffer)
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VarInt.send(len(self.data), packet_buffer)
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packet_buffer.send(self.data)
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VarInt.send(len(self.entities), packet_buffer)
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for e in self.entities:
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Nbt.send(e, packet_buffer)
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def decode_chunk_data(self):
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packet_data = PacketBuffer()
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packet_data.send(self.data)
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packet_data.reset_cursor()
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self.chunks = {}
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for i in range(16): #0-15
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self.chunks[i] = Chunk(self.x, i, self.z)
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if self.bit_mask_y & (1 << i):
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self.chunks[i].read(packet_data)
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for e in self.entities:
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y = e['y']
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self.chunks[floor(y/16)].entities.append(e)
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class Chunk:
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position = multi_attribute_alias(Vector, 'x', 'y', 'z')
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def __init__(self, x, y, z, empty=True):
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self.x = x
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self.y = y
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self.z = z
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self.empty = empty
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self.entities = []
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def __repr__(self):
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return 'Chunk(%r, %r, %r)' % (self.x, self.y, self.z)
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def read(self, file_object):
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self.empty = False
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self.block_count = Short.read(file_object)
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self.bpb = UnsignedByte.read(file_object)
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if self.bpb <= 4:
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self.bpb = 4
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if self.bpb <= 8: # Indirect palette
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self.palette = []
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size = VarInt.read(file_object)
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for i in range(size):
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self.palette.append(VarInt.read(file_object))
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else: # Direct palette
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self.palette = None
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size = VarInt.read(file_object)
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longs = []
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for i in range(size):
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longs.append(UnsignedLong.read(file_object))
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self.blocks = []
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mask = (1 << self.bpb)-1
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bits_used = int(64 / self.bpb) * self.bpb
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for i in range(4096):
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l1 = int((i*self.bpb)/bits_used)
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offset = (i*self.bpb)%bits_used
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n = longs[l1] >> offset
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n &= mask
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if self.palette:
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n = self.palette[n]
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self.blocks.append(n)
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def write_fields(self, packet_buffer):
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pass # TODO
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def get_block_at(self, x, y, z):
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if self.empty:
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return 0
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return self.blocks[x+y*256+z*16]
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def set_block_at(self, x, y, z, block):
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if self.empty:
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self.init_empty()
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self.blocks[x+y*256+z*16] = block
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def init_empty(self):
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self.blocks = []
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for i in range(4096):
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self.blocks.append(0)
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self.empty = False
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@property
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def origin(self):
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return self.position*16
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98
protocol/types.py
Normal file
98
protocol/types.py
Normal file
@@ -0,0 +1,98 @@
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from __future__ import division
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from minecraft.networking.types.basic import Type, Byte, Short, Integer, Long, Float, Double, ShortPrefixedByteArray
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import struct
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from minecraft.networking.types.utility import Vector
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from minecraft.networking.types.basic import Type, Byte, Short, Integer, Long, Float, Double, ShortPrefixedByteArray
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class IntegerPrefixedByteArray(Type):
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@staticmethod
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def read(file_object):
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length = Integer.read(file_object)
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return struct.unpack(str(length) + "s", file_object.read(length))[0]
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@staticmethod
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def send(value, socket):
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Integer.send(len(value), socket)
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socket.send(value)
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TAG_End = 0
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TAG_Byte = 1
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TAG_Short = 2
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TAG_Int = 3
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TAG_Long = 4
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TAG_Float = 5
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TAG_Double = 6
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TAG_Byte_Array = 7
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TAG_String = 8
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TAG_List = 9
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TAG_Compound = 10
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TAG_Int_Array = 11
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TAG_Long_Array = 12
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class Nbt(Type):
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@staticmethod
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def read(file_object):
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type_id = Byte.read(file_object)
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if type_id != TAG_Compound:
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raise Exception("Invalid NBT header")
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name = ShortPrefixedByteArray.read(file_object).decode('utf-8')
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a = Nbt.decode_tag(file_object, TAG_Compound)
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a['_name'] = name
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return a
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@staticmethod
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def decode_tag(file_object, type_id):
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if type_id == TAG_Byte:
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||||
return Byte.read(file_object)
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elif type_id == TAG_Short:
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||||
return Short.read(file_object)
|
||||
elif type_id == TAG_Int:
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||||
return Integer.read(file_object)
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||||
elif type_id == TAG_Long:
|
||||
return Long.read(file_object)
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||||
elif type_id == TAG_Float:
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||||
return Float.read(file_object)
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||||
elif type_id == TAG_Double:
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||||
return Double.read(file_object)
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||||
elif type_id == TAG_Byte_Array:
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return IntegerPrefixedByteArray.read(file_object).decode('utf-8')
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||||
elif type_id == TAG_String:
|
||||
return ShortPrefixedByteArray.read(file_object)
|
||||
elif type_id == TAG_List:
|
||||
list_type_id = Byte.read(file_object)
|
||||
size = Integer.read(file_object)
|
||||
a = []
|
||||
for i in range(size):
|
||||
a.append(Nbt.decode_tag(file_object, list_type_id))
|
||||
return a
|
||||
elif type_id == TAG_Compound:
|
||||
c = { }
|
||||
child_type_id = Byte.read(file_object)
|
||||
while child_type_id != TAG_End:
|
||||
child_name = ShortPrefixedByteArray.read(file_object).decode('utf-8')
|
||||
c[child_name] = Nbt.decode_tag(file_object, child_type_id)
|
||||
child_type_id = Byte.read(file_object)
|
||||
return c
|
||||
elif type_id == TAG_Int_Array:
|
||||
size = Integer.read(file_object)
|
||||
a = []
|
||||
for i in range(size):
|
||||
a.append(Integer.read(file_object))
|
||||
return a
|
||||
elif type_id == TAG_Long_Array:
|
||||
size = Integer.read(file_object)
|
||||
a = []
|
||||
for i in range(size):
|
||||
a.append(Long.read(file_object))
|
||||
return a
|
||||
else:
|
||||
raise Exception("Invalid NBT tag type")
|
||||
|
||||
@staticmethod
|
||||
def send(value, socket):
|
||||
# TODO
|
||||
pass
|
||||
Reference in New Issue
Block a user