File size: 827 Bytes
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class Every:
def __init__(self, every):
self._every = every
self._last = None
def __call__(self, step):
step = int(step)
if not self._every:
return False
if self._last is None:
self._last = step
return True
if step >= self._last + self._every:
self._last += self._every
return True
return False
class Once:
def __init__(self):
self._once = True
def __call__(self):
if self._once:
self._once = False
return True
return False
class Until:
def __init__(self, until):
self._until = until
def __call__(self, step):
step = int(step)
if not self._until:
return True
return step < self._until
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