def __init__(self, source, target, delta):
Action.__init__(self, source)
self.__target = target
self.__delta = delta
def __init__(self, source, target):
Action.__init__(self,source)
self.__target = target
def __init__(self, source, target, delta):
Action.__init__(self, source)
self.__target = target
self.__delta = delta
def __init__(self, source, target):
Action.__init__(self,source)
self.__target = target