from bGrease.mode import *
import abc

class FifeManager(BaseManager):

	def __init__(self):
		self.modes = []
	
	def _pump(self):
		if self.current_mode:
			self.current_mode.pump(self.current_mode.engine.getTimeManager().getTimeDelta() / 1000.0)
	
class FifeMode(BaseMode):
	
	def __init__(self):
		BaseMode.__init__(self)
	
	@abc.abstractmethod
	def pump(self, dt):
		"""Performs actions every frame"""