1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
from .utils import burger_type_to_rust_type, write_packet_file
from ..utils import padded_hex, to_snake_case, to_camel_case
from ..mappings import Mappings
def make_packet_mod_rs_line(packet_id: int, packet_class_name: str):
return f' {padded_hex(packet_id)}: {to_snake_case(packet_class_name)}::{to_camel_case(packet_class_name)},'
def generate(burger_packets, mappings: Mappings, target_packet_id, target_packet_direction, target_packet_state):
for packet in burger_packets.values():
if packet['id'] != target_packet_id:
continue
direction = packet['direction'].lower() # serverbound or clientbound
state = {'PLAY': 'game'}.get(packet['state'], packet['state'].lower())
if state != target_packet_state or direction != target_packet_direction:
continue
generated_packet_code = []
uses = set()
generated_packet_code.append(
f'#[derive(Clone, Debug, McBuf, {to_camel_case(state)}Packet)]')
uses.add(f'packet_macros::{{{to_camel_case(state)}Packet, McBuf}}')
obfuscated_class_name = packet['class'].split('.')[0].split('$')[0]
class_name = mappings.get_class(
obfuscated_class_name).split('.')[-1].split('$')[0]
generated_packet_code.append(
f'pub struct {to_camel_case(class_name)} {{')
for instruction in packet.get('instructions', []):
if instruction['operation'] == 'write':
obfuscated_field_name = instruction['field']
if '.' in obfuscated_field_name or ' ' in obfuscated_field_name or '(' in obfuscated_field_name:
generated_packet_code.append(f'// TODO: {instruction}')
continue
field_name = mappings.get_field(
obfuscated_class_name, obfuscated_field_name)
if not field_name:
generated_packet_code.append(
f'// TODO: unknown field {instruction}')
continue
field_type = instruction['type']
field_type_rs, is_var, instruction_uses = burger_type_to_rust_type(
field_type)
if is_var:
generated_packet_code.append('#[var]')
generated_packet_code.append(
f'pub {to_snake_case(field_name)}: {field_type_rs},')
uses.update(instruction_uses)
else:
generated_packet_code.append(f'// TODO: {instruction}')
continue
generated_packet_code.append('}')
if uses:
# empty line before the `use` statements
generated_packet_code.insert(0, '')
for use in uses:
generated_packet_code.insert(0, f'use {use};')
print(generated_packet_code)
write_packet_file(state, to_snake_case(class_name),
'\n'.join(generated_packet_code))
print()
mod_rs_dir = f'../azalea-protocol/src/packets/{state}/mod.rs'
with open(mod_rs_dir, 'r') as f:
mod_rs = f.read().splitlines()
pub_mod_line = f'pub mod {to_snake_case(class_name)};'
if pub_mod_line not in mod_rs:
mod_rs.insert(0, pub_mod_line)
packet_mod_rs_line = make_packet_mod_rs_line(
packet['id'], class_name)
in_serverbound = False
in_clientbound = False
for i, line in enumerate(mod_rs):
if line.strip() == 'Serverbound => {':
in_serverbound = True
continue
elif line.strip() == 'Clientbound => {':
in_clientbound = True
continue
elif line.strip() in ('}', '},'):
if (in_serverbound and direction == 'serverbound') or (in_clientbound and direction == 'clientbound'):
mod_rs.insert(i, packet_mod_rs_line)
break
in_serverbound = in_clientbound = False
continue
if line.strip() == '' or line.strip().startswith('//') or (not in_serverbound and direction == 'serverbound') or (not in_clientbound and direction == 'clientbound'):
continue
line_packet_id_hex = line.strip().split(':')[0]
assert line_packet_id_hex.startswith('0x')
line_packet_id = int(line_packet_id_hex[2:], 16)
if line_packet_id > packet['id']:
mod_rs.insert(i, packet_mod_rs_line)
break
with open(mod_rs_dir, 'w') as f:
f.write('\n'.join(mod_rs))
def set_packet_ids(packet_ids: list, packet_class_names: list, direction: str, state: str):
assert len(packet_ids) == len(packet_class_names)
mod_rs_dir = f'../azalea-protocol/src/packets/{state}/mod.rs'
with open(mod_rs_dir, 'r') as f:
mod_rs = f.read().splitlines()
new_mod_rs = []
ignore_lines = False
for line in mod_rs:
if line.strip() == 'Serverbound => {':
if direction == 'serverbound':
ignore_lines = True
for packet_id, packet_class_name in zip(packet_ids, packet_class_names):
new_mod_rs.append(
make_packet_mod_rs_line(packet_id, packet_class_name)
)
else:
ignore_lines = False
elif line.strip() == 'Clientbound => {':
if direction == 'serverbound':
ignore_lines = True
for packet_id, packet_class_name in zip(packet_ids, packet_class_names):
new_mod_rs.append(
make_packet_mod_rs_line(packet_id, packet_class_name)
)
else:
ignore_lines = False
elif line.strip() in ('}', '},'):
ignore_lines = False
if not ignore_lines:
new_mod_rs.append(line)
with open(mod_rs_dir, 'w') as f:
f.write('\n'.join(new_mod_rs))
|
