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Minor comment changes and clean up

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This commit is contained in:
Sridhar Ramesh 2018-02-20 09:11:43 -08:00
parent b1f5252bb9
commit aa64d7cd5c
1 changed files with 4 additions and 6 deletions
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10
animation/simple_animations.py
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@ -443,13 +443,12 @@ class Succession(Animation):
# Beware: This does NOT take care of calling update(0) on the subanimation.
# This was important to avoid a pernicious possibility in which subanimations were called
# with update(0) twice, which could in turn call a sub-Succession with update(0) four times,
# with update twice, which could in turn call a sub-Succession with update four times,
# continuing exponentially.
def jump_to_start_of_anim(self, index):
if index != self.current_anim_index:
self.mobject.remove(*self.mobject.submobjects) # Should probably have a cleaner "remove_all" method...
for m in self.scene_mobjects_at_time[index].submobjects:
self.mobject.add(m)
self.mobject.add(*self.scene_mobjects_at_time[index].submobjects)
self.mobject.add(self.animations[index].mobject)
for i in range(index):
@ -459,10 +458,9 @@ class Succession(Animation):
self.current_alpha = self.critical_alphas[index]
def update_mobject(self, alpha):
if alpha == self.current_alpha:
return
if self.num_anims == 0:
# This probably doesn't matter for anything, but just in case,
# we want it in the future, we set current_alpha even in this case
self.current_alpha = alpha
return