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Use get_family_updaters to test if a mobject should be drawn during every frame of an animation

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This commit is contained in:
Grant Sanderson 2019-04-04 14:29:52 -07:00
parent 26c7faabdd
commit 982d437267
2 changed files with 7 additions and 1 deletions
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6
manimlib/mobject/mobject.py
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@ -173,6 +173,12 @@ class Mobject(Container):
def get_updaters(self): def get_updaters(self):
return self.updaters return self.updaters
def get_family_updaters(self):
return list(it.chain(*[
sm.get_updaters()
for sm in self.get_family()
]))
def add_updater(self, update_function, index=None, call_updater=True): def add_updater(self, update_function, index=None, call_updater=True):
if index is None: if index is None:
self.updaters.append(update_function) self.updaters.append(update_function)

2
manimlib/scene/scene.py
View file

@ -288,7 +288,7 @@ class Scene(Container):
for i, mob in enumerate(mobjects): for i, mob in enumerate(mobjects):
update_possibilities = [ update_possibilities = [
mob in animation_mobjects, mob in animation_mobjects,
len(mob.get_updaters()) > 0, len(mob.get_family_updaters()) > 0,
mob in self.foreground_mobjects mob in self.foreground_mobjects
] ]
if any(update_possibilities): if any(update_possibilities):