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30 lines
1.1 KiB
Python
30 lines
1.1 KiB
Python
from manimlib.camera.moving_camera import MovingCamera
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from manimlib.scene.scene import Scene
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from manimlib.utils.iterables import list_update
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class MovingCameraScene(Scene):
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CONFIG = {
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"camera_class": MovingCamera
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}
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def setup(self):
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Scene.setup(self)
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assert(isinstance(self.camera, MovingCamera))
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self.camera_frame = self.camera.frame
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# Hmm, this currently relies on the fact that MovingCamera
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# willd default to a full-sized frame. Is that okay?
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return self
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def get_moving_mobjects(self, *animations):
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moving_mobjects = Scene.get_moving_mobjects(self, *animations)
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all_moving_mobjects = self.camera.extract_mobject_family_members(
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moving_mobjects
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)
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movement_indicators = self.camera.get_mobjects_indicating_movement()
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for movement_indicator in movement_indicators:
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if movement_indicator in all_moving_mobjects:
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# When one of these is moving, the camera should
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# consider all mobjects to be moving
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return list_update(self.mobjects, moving_mobjects)
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return moving_mobjects
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