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Added create_starting_mobject method, and suspend_mobject_updating config variable

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Grant Sanderson 2019-02-09 10:09:19 -08:00
parent 10850c5af6
commit 9baae55836
1 changed files with 16 additions and 11 deletions
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13
manimlib/animation/animation.py
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@ -21,6 +21,7 @@ class Animation(object):
# If 0 < lag_ratio < 1, its applied to each # If 0 < lag_ratio < 1, its applied to each
# with lagged start times # with lagged start times
"lag_ratio": 0, "lag_ratio": 0,
"suspend_mobject_updating": True,
} }
def __init__(self, mobject, **kwargs): def __init__(self, mobject, **kwargs):
@ -38,26 +39,30 @@ class Animation(object):
# played. As much initialization as possible, # played. As much initialization as possible,
# especially any mobject copying, should live in # especially any mobject copying, should live in
# this method # this method
mobject = self.mobject self.starting_mobject = self.create_starting_mobject()
# Keep track of where it started if self.suspend_mobject_updating:
self.starting_mobject = mobject.copy()
# All calls to self.mobject's internal updaters # All calls to self.mobject's internal updaters
# during the animation, either from this Animation # during the animation, either from this Animation
# or from the surrounding scene, should do nothing. # or from the surrounding scene, should do nothing.
# It is, however, okay and desirable to call # It is, however, okay and desirable to call
# the internal updaters of self.starting_mobject, # the internal updaters of self.starting_mobject,
# or any others among self.get_all_mobjects() # or any others among self.get_all_mobjects()
mobject.suspend_updating() self.mobject.suspend_updating()
self.interpolate(0) self.interpolate(0)
def finish(self): def finish(self):
self.interpolate(1) self.interpolate(1)
if self.suspend_mobject_updating:
self.mobject.resume_updating() self.mobject.resume_updating()
def clean_up_from_scene(self, scene): def clean_up_from_scene(self, scene):
if self.is_remover(): if self.is_remover():
scene.remove(self.mobject) scene.remove(self.mobject)
def create_starting_mobject(self):
# Keep track of where the mobject starts
return self.mobject.copy()
def get_all_mobjects(self): def get_all_mobjects(self):
""" """
Ordering must match the ording of arguments to interpolate_submobject Ordering must match the ording of arguments to interpolate_submobject