cortana-python/BinaryWalker.py at master · hdneo/cortana-python · GitHub

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import struct

class BinaryWalker:

	def __init__(self):
		self.offset = 0

	def setData(self,data):
		self.data = data
		self.offset = 0

	def seek(self,nBytes):
		self.offset = self.offset + nBytes

	def getInt16(self):
		uint = self.data[self.offset:self.offset+2]
		self.seek(2)
		return struct.unpack("h",uint)[0]

	def getInt32(self):
		uint = self.data[self.offset:self.offset+4]
		self.seek(4)
		return struct.unpack("i",uint)[0]

	def getFloat(self):
		flt = self.data[self.offset:self.offset+4]
		self.seek(4)
		return struct.unpack("f",flt)[0]

	def getDouble(self):
		dbl = self.data[self.offset:self.offset+8]
		self.seek(8)
		return struct.unpack("d",dbl)[0]

	def getVector3f(self):
		a = self.getFloat()
		b = self.getFloat()
		c = self.getFloat()
		return [a,b,c]

	def getQuat(self):
		a = self.getFloat()
		b = self.getFloat()
		c = self.getFloat()
		d = self.getFloat()
		return [a,b,c,d]

	def getBlob(self,nBytes):
		blob = self.data[self.offset:self.offset+nBytes]
		self.seek(nBytes)
		return blob