Decode wtb format in python

wtb_decode.py

with open("test.bin", mode='rb') as file:
	encodedData = file.read()
	offset = 0

	objects = []
	iteration = 0
	while offset < len(encodedData):

		elementSize = encodedData[offset]
		offset+=1
		elementType = encodedData[offset]
		offset+=1

		if elementType == 0:
			break

		curElemSize = elementSize
		curElemType = elementType

		if elementType== 114:
			largeElementSize = int.from_bytes(encodedData[offset:offset + 4], "big")
			offset+=4
			largeElementType = int.from_bytes(encodedData[offset:offset+2], "little")
			offset+=2
			curElemSize = largeElementSize
			curElemType = largeElementType

		print(f"type {curElemType} | size {curElemSize}")
		offsetInit = offset

		if curElemType == 1:
			offset+=4
		elif curElemType == 2:
			offset+=2
		elif curElemType == 3:
			offset+=20
		elif curElemType == 4:
			offset+=28
		elif curElemType == 5:
			offset+=12
		elif curElemType == 6:
			textLength = curElemSize - 3
			objects.append({
				"type": "Text",
				"x_position": int.from_bytes(encodedData[offset:offset+2], "big"),
				"y_position": int.from_bytes(encodedData[offset+2:offset+4], "big"),
				"rotation": int.from_bytes(encodedData[offset+4:offset+6], "big"),
				"text": encodedData[offset+6:offset+6+(textLength*2)].decode("utf-8").replace('\x00','')
			})
			offset+=6+(textLength*2)
		elif curElemType == 7:
			numPoint = int(curElemSize / 2)
			offset+=4*numPoint
		elif curElemType == 27:
			numPoint = int(curElemSize / 4)
			offset+=8*numPoint
		elif curElemType == 8:
			numPoint = int(curElemSize / 2)
			offset+=4*numPoint
		elif curElemType == 28:
			numPoint = int(curElemSize / 4)
			offset+=8*numPoint
		elif curElemType == 13:
			offset+=4
		elif curElemType == 14:
			offset+=2
		elif curElemType == 15:
			offset+=2
		elif curElemType == 100:
			pass
		elif curElemType == 101:
			offset+=20
		elif curElemType == 102:
			offset+=2
		elif curElemType == 103:
			pass
		elif curElemType == 104:
			highShort = int.from_bytes(encodedData[offset+2:offset+4], "little")
			lowShort = int.from_bytes(encodedData[offset+4:offset+6], "little")
			objects.append({
				"type": "StartNumericCell",
				"entity": int.from_bytes(encodedData[offset:offset+2], "little"),
				"occurrence": (highShort << 16) + lowShort
			})
			offset+=6
		elif curElemType == 105:
			#end cell
			pass
		elif curElemType == 109:
			textLength = curElemSize - 1
			objects.append({
				"type": "StartAlphanumericCell",
				"entity": int.from_bytes(encodedData[offset:offset+2], "little"),
				"occurrence":encodedData[offset+2:offset+2+(textLength*2)].decode("utf-8").replace('\x00','')
			})
			offset+=2+(textLength*2)
		elif curElemType == 111:
			offset+=40
		elif curElemType == 112:
			objects.append({
				"type": "CoordinatePlane",
				"projection_code": encodedData[offset+48:offset+52].decode("utf-8").replace('\x00','')
			})
			offset+=52
		elif curElemType == 113:
			offset+=24
		elif curElemType == 256:
			nameLength = int.from_bytes(encodedData[offset+14:offset+16], "little")
			objects.append({
				"type": "LargePolygon",
				"name": encodedData[offset+16:offset+16+nameLength].decode("utf-8").replace('\x00',''),
				"occurence": int.from_bytes(encodedData[offset+2:offset+6], "little")
			})
			if nameLength > 0:
				offset+= 16 + nameLength
				if encodedData[offset] == 0:
					offset+=1
			else:
				offset+= 16
			numberOfPoints = int.from_bytes(encodedData[offset:offset+2], "little")
			offset+=2
			offset+=numberOfPoints*8
		elif curElemType == 257:
			pass
		else:
			offset+= curElemSize*2
		print(f"offset diff {offset-offsetInit}")
		print("--------------------------------")

	print(objects)
	print(len(encodedData))
	print(offset)