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"""Constants module.
Contains some constants used throughout.
"""
class _Infinity:
"""Class for the singleton INFTY.
We assume that this is only used in time-related operations, i.e. that numbers involved
are nonnegative.
"""
INFTY = None
def __repr__(self):
return "infty"
def __str__(self):
return "infty"
def __gt__(self, other):
if other == INFTY:
return False
return True
def __ge__(self, other):
return True
def __le__(self, other):
return other == INFTY
def __lt__(self, other):
return False
def __add__(self, other):
return self
def __radd__(self, other):
return self
def __sub__(self, other):
return self
def __rsub__(self, other):
return self
def __mul__(self, other):
if other == 0:
raise ValueError("Undefined")
return self
def __rmul__(self, other):
return self * other
def __init__(self):
if _Infinity.INFTY is not None:
raise ValueError("Cannot create two infinities")
_Infinity.INFTY = self
INFTY = _Infinity()
AUTO = -2
BXW = "{http://unsuspicious.services/bxw}"
SCENE = "Scene"
AUDIO = "Audio"
CHASER = "Chaser"
CHASERSTEP = "ChaserStep"
FUNCTION = "Function"
INTERNAL = "Internal"
EXTERNAL = "External"
INHERIT = "Inherit"
MANUAL = "Manual"
LOOP = "Loop"
RANDOM = "Random"
ONESHOT = "Oneshot"
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