import os
import sys
import pygame

def get_basedir():
	execpath = sys.argv[0]
	execpath = os.path.split(execpath)[0]
	if not execpath:
		return '.'
	return execpath

class filemanager(object):
	def __init__(self):
		self.basepath = get_basedir()
		self.datapath = "data"
		
	def path(self, *args):
		return os.path.join(self.basepath, self.datapath, *args)
		
	def open(self, *args):
		filename = self.path(*args)
		return open(filename, 'rb')

	def png(self, *args):
		filename = self.path(*args)
		return pygame.image.load(filename)

mgr = filemanager()