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Object.py
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174 lines (143 loc) · 5.87 KB
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from .PPtr import PPtr
from ..enums import BuildTarget
from ..helpers import TypeTreeHelper
from ..streams import EndianBinaryWriter
from ..files import ObjectReader
import types
class Object(object):
type_tree: dict
def __init__(self, reader: ObjectReader):
self.reader = reader
self.assets_file = reader.assets_file
self.type = reader.type
self.path_id = reader.path_id
self.version = reader.version
self.build_type = reader.build_type
self.platform = reader.platform
self.serialized_type = reader.serialized_type
self.byte_size = reader.byte_size
self.assets_file = reader.assets_file
if self.platform == BuildTarget.NoTarget:
self._object_hide_flags = reader.read_u_int()
self.container = (
self.assets_file._container[self.path_id]
if self.path_id in self.assets_file._container
else None
)
self.reader.reset()
if type(self) == Object:
self.read_typetree()
def has_struct_member(self, name: str) -> bool:
return self.serialized_type.m_Nodes and any(
[x.name == name for x in self.serialized_type.m_Nodes]
)
def dump_typetree(self, nodes: list = None) -> str:
return self.reader.dump_typetree(nodes=nodes)
def dump_typetree_structure(self) -> str:
return self.reader.dump_typetree_structure()
def read_typetree(self, nodes: list = None) -> dict:
tree = self.reader.read_typetree()
self.type_tree = NodeHelper(tree, self.assets_file)
return tree
def save_typetree(self, nodes: list = None, writer: EndianBinaryWriter = None):
if not writer:
writer = EndianBinaryWriter(endian=self.reader.endian)
def class_to_dict(value):
if isinstance(value, list):
return [class_to_dict(val) for val in value]
elif isinstance(value, dict):
return {
key: class_to_dict(val)
for key, val in value.items()
}
elif hasattr(value, "__dict__"):
if isinstance(value, PPtr):
return {"m_PathID": value.path_id, "m_FileID": value.file_id}
return {
key: class_to_dict(val)
for key, val in value.__dict__.items()
if not isinstance(value, (types.FunctionType, types.MethodType)) and not key in ["type_tree", "assets_file"]
}
else:
return value
obj = class_to_dict(self if not self.type_tree else self.type_tree)
return self.reader.save_typetree(obj, nodes, writer)
def get_raw_data(self) -> bytes:
return self.reader.get_raw_data()
def set_raw_data(self, data):
self.reader.set_raw_data(data)
def save(self, writer: EndianBinaryWriter = None, intern_call=False):
if not writer:
writer = EndianBinaryWriter(endian=self.reader.endian)
if intern_call:
if self.platform == BuildTarget.NoTarget:
writer.write_u_int(self._object_hide_flags)
elif self.serialized_type.nodes:
# save for objects WITHOUT specific save function
# so we have to use the typetree if it exists
self.save_typetree()
else:
raise NotImplementedError(
"There is no save function for this obj.type nor has it any typetree nodes that could be used.")
def _save(self, writer):
# the reader is actually an ObjectReader,
# the data value is written back into the asset
self.reader.data = writer.bytes
def __getattr__(self, name):
"""
If item not found in __dict__, read type_tree and check if it is in there.
"""
if name == "type_tree" or self.type_tree == None:
old_pos = self.reader.Position
self.read_typetree()
self.reader.Position = old_pos
if name == "type_tree":
return self.type_tree
return getattr(self.type_tree, name)
def get(self, key, default=None):
return getattr(self, key, default)
def __repr__(self):
return "<%s %s>" % (self.__class__.__name__, self.name)
class NodeHelper:
def __init__(self, data, assets_file):
if "m_PathID" in data and "m_FileID" in data:
# used to make pointers directly useable
self.path_id = data["m_PathID"]
self.file_id = data["m_FileID"]
self.index = data.get("m_Index", -2)
self.assets_file = assets_file
self.__class__ = PPtr
else:
self.__dict__ = {
key: NodeHelper(val, assets_file) for key, val in data.items()
}
def __new__(cls, data, assets_file):
if isinstance(data, dict):
return super(NodeHelper, cls).__new__(cls)
elif isinstance(data, list):
return [NodeHelper(x, assets_file) for x in data]
return data
def __getitem__(self, item):
return getattr(self, item)
def to_dict(self):
def dump(val):
return (
val.to_dict()
if isinstance(val, NodeHelper)
else [dump(item) for item in val]
if isinstance(val, list)
else {"m_PathID": val.path_id, "m_FileID": val.file_id}
if isinstance(val, PPtr)
else [x for x in val]
if isinstance(val, (bytearray, bytes))
else val
)
return {key: dump(val) for key, val in self.__dict__.items()}
def items(self):
return self.__dict__.items()
def values(self):
return self.__dict__.values()
def keys(self):
return self.__dict__.keys()
def __repr__(self):
return "<NodeHelper - %s>" % self.__dict__.__repr__()