upload new files

filereader.py

@@ -0,0 +1,57 @@
+import struct
+
+
+class FileReader:
+	""" 
+	Simplified byte file reader with buffer 
+	Not particularly optimised, contains repetitive functions
+	In the scope of this project, not everything will be used either
+
+	"""
+	def __init__(self, file, endianness: str):
+		self.stream = file
+		self.endianness = endianness
+
+	def _read(self, mode:str, bufferLength:int, endianness=None) -> bytes:
+		# endianness override
+		if endianness is None:
+			endianness = self.endianness
+
+		endianness = "<" if endianness == "little" else ">"
+
+		return struct.unpack(f"{endianness}{mode}", bytearray(self.stream.read(bufferLength)))[0]
+
+	# read methods
+	def ReadInt16(self, endianness=None) -> int:
+		return self._read("h", 2, endianness)
+	
+	def ReadUInt16(self, endianness=None) -> int:
+		return self._read("H", 2, endianness)
+	
+	def ReadInt32(self, endianness=None) -> int:
+		return self._read("i", 4, endianness)
+	
+	def ReadUInt32(self, endianness=None) -> int:
+		return self._read("I", 4, endianness)
+
+	def ReadLong(self, endianness=None) -> int:
+		return self._read("l", 4, endianness)
+
+	def ReadULong(self, endianness=None) -> int:
+		return self._read("L", 4, endianness)
+
+	def ReadLongLong(self, endianness=None) -> int:
+		return self._read("q", 8, endianness)
+
+	def ReadULongLong(self, endianness=None) -> int:
+		return self._read("Q", 8, endianness)
+
+	def ReadBytes(self, length:int, endianness=None) -> bytes:
+		return self._read(f"{str(length)}s", int(length), endianness)
+
+	# buffer utils
+	def GetBufferPos(self) -> int:
+		return self.stream.tell()
+
+	def SetBufferPos(self, pos:int):
+		self.stream.seek(pos)