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fixed the keep orientation uwu pls add lolol #5

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fixed the keep orientation uwu pls add lolol #5

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11 changes: 8 additions & 3 deletions src/MF_Tools/updaters.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,11 +3,16 @@

def keep_orientation(scene, *mobjects):
for mob in mobjects:
mob.orientation_line = Line().set_opacity(0).move_to(mob.get_center())
mob.add(mob.orientation_line)
ref = Line(ORIGIN, RIGHT).set_opacity(0).move_to(mob.get_center())
mob.orientation_ref = ref
mob.add(ref)
mob.add_updater(lambda m, dt: None)
def keep_orientation_updater(dt):
for mob in mobjects:
mob[:-1].rotate(-mob[-1].get_angle(), about_point=mob[:-1].get_center())
angle = mob.orientation_ref.get_angle()
if abs(angle) < 1e-12:
continue
mob.rotate(-angle, about_point=mob.get_center())
scene.add_updater(keep_orientation_updater)
Scene.keep_orientation = keep_orientation

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