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30 lines
761 B
Python
30 lines
761 B
Python
import inspect
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from manimlib.constants import DEGREES
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from manimlib.constants import RIGHT
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from manimlib.mobject.mobject import Mobject
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def always(method, *args, **kwargs):
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assert(inspect.ismethod(method))
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mobject = method.__self__
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assert(isinstance(mobject, Mobject))
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func = method.__func__
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mobject.add_updater(lambda m: func(m, *args, **kwargs))
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def always_redraw(func):
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mob = func()
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mob.add_updater(lambda m: mob.become(func()))
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return mob
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def always_shift(mobject, direction=RIGHT, rate=0.1):
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mobject.add_updater(
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lambda m, dt: m.shift(dt * rate * direction)
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)
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def always_rotate(mobject, rate=20 * DEGREES, **kwargs):
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mobject.add_updater(
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lambda m, dt: m.rotate(dt * rate, **kwargs)
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)
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