minecraft-bot/protocol/managers.py

192 lines
6.6 KiB
Python

import os
from math import floor
import json
import time
from minecraft.networking.packets import clientbound, serverbound
from protocol import packets
import utils
class DataManager:
def __init__(self, directory):
self.blocks = {}
self.blocks_states = {}
self.blocks_properties = {}
self.registries = {}
self.biomes = {}
self.entity_type = {}
if not os.path.isdir(directory):
raise FileNotFoundError("%s is not a valid directory")
if not os.path.isfile("%s/registries.json"%(directory)):
raise FileNotFoundError("%s is not a valid minecraft data directory")
with open("%s/blocks.json"%(directory)) as f:
blocks = json.loads(f.read())
for x in blocks:
for s in blocks[x]['states']:
self.blocks_states[s['id']] = x
self.blocks_properties[s['id']] = s.get('properties', {})
with open("%s/registries.json"%(directory)) as f:
registries = json.loads(f.read())
#for x in registries["minecraft:biome"]["entries"]:
# self.biomes[registries["minecraft:biome"]["entries"][x]["protocol_id"]] = x
for x in registries["minecraft:entity_type"]["entries"]:
self.entity_type[registries["minecraft:entity_type"]["entries"][x]["protocol_id"]] = x
class ChunksManager:
def __init__(self, data_manager):
self.data = data_manager
self.chunks = {}
self.biomes = {}
self.index = {}
def handle_block(self, block_packet):
self.set_block_at(block_packet.location.x, block_packet.location.y, block_packet.location.z, block_packet.block_state_id)
def handle_multiblock(self, multiblock_packet):
dx = 16 * multiblock_packet.chunk_section_pos.x
dy = 16 * multiblock_packet.chunk_section_pos.y
dz = 16 * multiblock_packet.chunk_section_pos.z
for b in multiblock_packet.records:
self.set_block_at(dx+b.x, dy+b.y, dz+b.z, b.block_state_id)
def handle_chunk(self, chunk_packet):
for i in chunk_packet.chunks:
chunk = chunk_packet.chunks[i]
self.chunks[(chunk_packet.x, i, chunk_packet.z)] = chunk
if chunk.sub_index:
dx = chunk.x * 16
dy = chunk.y * 16
dz = chunk.z * 16
for item_id, locations in chunk.sub_index.items():
if item_id not in self.index:
self.index[item_id] = []
for l in locations:
coords = (dx + l%16, dy + l//256, dz + l%256//16)
self.index[item_id].append(coords)
self.biomes[(chunk_packet.x, None, chunk_packet.z)] = chunk_packet.biomes # FIXME
def register(self, connection):
connection.register_packet_listener(self.handle_block, clientbound.play.BlockChangePacket)
connection.register_packet_listener(self.handle_multiblock, clientbound.play.MultiBlockChangePacket)
connection.register_packet_listener(self.handle_chunk, packets.ChunkDataPacket)
def get_chunk(self, x, y, z):
index = (x, y, z)
if not index in self.chunks:
return None
#raise ChunkNotLoadedException(index)
return self.chunks[index]
def get_loaded_area(self, ignore_empty=False):
first = next(iter(self.chunks.keys()))
x0 = x1 = first[0]
y0 = y1 = first[1]
z0 = z1 = first[2]
for k in self.chunks.keys():
if ignore_empty and self.chunks[k].empty:
continue
x0 = min(x0, k[0])
x1 = max(x1, k[0])
y0 = min(y0, k[1])
y1 = max(y1, k[1])
z0 = min(z0, k[2])
z1 = max(z1, k[2])
return ((x0,y0,z0),(x1,y1,z1))
def get_block_at(self, x, y, z):
c = self.get_chunk(floor(x/16), floor(y/16), floor(z/16))
if not c: return None
return c.get_block_at(x%16, y%16, z%16)
def set_block_at(self, x, y, z, block):
c = self.get_chunk(floor(x/16), floor(y/16), floor(z/16))
if not c: return None
c.set_block_at(x%16, y%16, z%16, block)
def check_loaded(self, position, steps):
x, y, z = utils.pint(position)
player_chunk = (x//16, 1, z//16)
for i in range(steps): # TODO: base off render_distance?
offset = utils.spiral(i)
check = utils.padd(player_chunk, offset)
if check not in self.chunks:
return False
return True
def unload_chunks(self, position):
x, y, z = utils.pint(position)
player_chunk = (x//16, 0, z//16)
loaded_chunks = list(self.chunks.keys())
for chunk in loaded_chunks:
check = (chunk[0], 0, chunk[2])
if utils.phyp_king(player_chunk, check) > 20:
del self.chunks[chunk]
class ChunkNotLoadedException(Exception):
def __str__(self):
pos = self.args[0]
return "Chunk at %d %d %d not loaded (yet?)"%(pos[0], pos[1], pos[2])
class ChatManager:
def __init__(self, global_state):
self.g = global_state
self.handler = None
self.g.connection.register_packet_listener(self.print_chat, clientbound.play.ChatMessagePacket)
def translate_chat(self, data):
if isinstance(data, str):
return data
elif 'extra' in data:
return ''.join([self.translate_chat(x) for x in data['extra']])
elif 'text' in data:
return data['text']
elif 'with' in data:
if len(data['with']) >= 2:
return '<{}> {}'.format(*[self.translate_chat(x) for x in data['with']])
else:
return self.translate_chat(data['with'][0])
elif 'translate' in data:
return data['translate']
else:
print(data)
return '?'
def print_chat(self, chat_packet):
try:
source = chat_packet.field_string('position')
text = self.translate_chat(json.loads(chat_packet.json_data))
print('[%s] %s'%(source, text))
except Exception as ex:
print('Exception %r on message (%s): %s' % (ex, chat_packet.field_string('position'), chat_packet.json_data))
return
if self.handler:
self.handler((source, text))
def set_handler(self, func):
self.handler = func
def send(self, text):
if not text:
# Prevents connection bug when sending empty chat message
return
packet = serverbound.play.ChatPacket()
packet.message = text
self.g.connection.write_packet(packet)