def __init__(self, id, cost, prerequisites, danger,
effect_data):
super(TechSpec, self).__init__(id, cost, prerequisites)
self.result = ""
self.danger = danger
self.effect = effect.Effect(self, effect_data)
def __init__(self, id, event_type, effect_data, chance, duration, unique):
super(EventSpec, self).__init__(id)
self.event_type = event_type
self.description = ""
self.log_description = ""
self.effect = effect.Effect(self, effect_data)
self.chance = chance
self.duration = duration if duration > 0 else None
self.unique = unique
if duration < 1 and not unique:
raise ValueError("Event %s must have either a non-zero duration (e.g. duration = 21) or be unique "
"(unique = 1)")