(self, physics)
return 0.
A measure of the aliveness of the walker.

    Aliveness measure could be used for deciding on termination (ant flipped
    over and it's impossible for it to recover), or used as a shaping reward
    to maintain an alive pose that we desired (humanoids remaining upright).

    Args:
      physics: an instance of `Physics`.

    Returns:
      a `float` in the range of [-1., 0.] where -1 means not alive and 0. means
      alive. In walkers for which the concept of aliveness does not make sense,
      the default implementation is to always return 0.0.
A measure of the aliveness of the walker.
A measure of the aliveness of the walker .
def aliveness(self, physics):
    """A measure of the aliveness of the walker.

    Aliveness measure could be used for deciding on termination (ant flipped
    over and it's impossible for it to recover), or used as a shaping reward
    to maintain an alive pose that we desired (humanoids remaining upright).

    Args:
      physics: an instance of `Physics`.

    Returns:
      a `float` in the range of [-1., 0.] where -1 means not alive and 0. means
      alive. In walkers for which the concept of aliveness does not make sense,
      the default implementation is to always return 0.0.
    """
    return 0.
def aliveness ( self , physics ) : return 0.