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Changed mobject of ScreenTracker

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This commit is contained in:
Grant Sanderson
2018-02-26 23:34:42 -08:00
parent ec610a9152
commit c2b3e3f3e0
1 changed files with 24 additions and 20 deletions
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44
topics/light.py
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@ -314,8 +314,9 @@ class SwitchOn(LaggedStart):
def __init__(self, light, **kwargs):
if (not isinstance(light,AmbientLight) and not isinstance(light,Spotlight)):
raise Exception("Only AmbientLights and Spotlights can be switched on")
LaggedStart.__init__(self,
FadeIn, light, **kwargs)
LaggedStart.__init__(
self, FadeIn, light, **kwargs
)
class SwitchOff(LaggedStart):
@ -333,8 +334,6 @@ class SwitchOff(LaggedStart):
light.submobjects = light.submobjects[::-1]
class Lighthouse(SVGMobject):
CONFIG = {
"file_name" : "lighthouse",
@ -344,7 +343,6 @@ class Lighthouse(SVGMobject):
def move_to(self,point):
self.next_to(point, DOWN, buff = 0)
class AmbientLight(VMobject):
# Parameters are:
@ -421,19 +419,6 @@ class AmbientLight(VMobject):
submob.set_fill(opacity = new_submob_alpha)
class Spotlight(VMobject):
CONFIG = {
@ -590,7 +575,6 @@ class Spotlight(VMobject):
def dimming(self,new_alpha):
old_alpha = self.max_opacity
self.max_opacity = new_alpha
@ -623,7 +607,27 @@ class Spotlight(VMobject):
class ScreenTracker(ContinualAnimation):
def __init__(self, light_source, **kwargs):
self.light_source = light_source
dummy_mob = Mobject()
ContinualAnimation.__init__(self, dummy_mob, **kwargs)
def update_mobject(self, dt):
self.mobject.update()
self.light_source.update()