gistfile1.py

class BehaviorSource(object):
    def get_behavior(self, unit_data, state_data):
        raise NotImplementedError


class LocalAIBehaviorSource(BehaviorSource):
    pass


class GlobalAIBehaviorSource(BehaviorSource):
    pass


class UserInputBehaviorSource(BehaviorSource):
    pass


class BehaviorSourceManager(BehaviorSource):
    def __init__(self, sources):
        self.sources = sources

    def get_behavior(self, unit_data, state_data):
        current_behavior = None
        for source in self.sources:
            current_behavior = source.get_behavior(unit_data, state_data)
            if current_behavior:
                break
        return current_behavior


hero_pve_manager = BehaviorSourceManager([UserInputSource(), LocalAISource()])
hero_pvp_manager = BehaviorSourceManager([GlobalAISource(), LocalAISource()])