from parpg.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"""