Base class for each state of the state machine

basestate.py

class BaseState(object):
  def __init__(self):
    self.done = False
    self.quit = False
    self.next_state = None
    self.screen_rect = pygame.display.get_surface().get_rect()
    self.font = pygame.font.Font(None, 32)

  def startup(self):
    pass

  def get_event(self, event):
    pass

  def update(self, dt):
    pass

  def draw(self, surface):
    pass