OldLaggedStart -> LaggedStartMap

2025-07-29 21:12:35 +08:00 · 2019-02-14 12:06:21 -08:00
parent 4a00161bee
commit 993f7edee9
61 changed files with 906 additions and 939 deletions
--- a/old_projects/lost_lecture.py
+++ b/old_projects/lost_lecture.py
@ -194,7 +194,7 @@ class ShowEmergingEllipse(Scene):
        )
        self.wait()
        self.play(
-            OldLaggedStart(ShowCreation, shuffled_lines),
+            LaggedStartMap(ShowCreation, shuffled_lines),
            Animation(VGroup(e_dot, circle)),
            FadeOut(eccentric_words)
        )
@ -224,7 +224,7 @@ class ShowEmergingEllipse(Scene):
            Animation(ghost_line)
        )
        self.play(
-            OldLaggedStart(MoveToTarget, lines, run_time=4),
+            LaggedStartMap(MoveToTarget, lines, run_time=4),
            Animation(VGroup(e_dot, circle))
        )
        self.wait()
@ -408,7 +408,7 @@ class FeynmanFame(Scene):

        # As a physicist
        self.play(self.get_book_intro(books[0]))
-        self.play(OldLaggedStart(
+        self.play(LaggedStartMap(
            Write, feynman_diagram,
            run_time=4
        ))
@ -416,7 +416,7 @@ class FeynmanFame(Scene):
        self.play(
            self.get_book_intro(books[1]),
            self.get_book_outro(books[0]),
-            OldLaggedStart(
+            LaggedStartMap(
                ApplyMethod, fd_parts,
                lambda m: (m.scale, 0),
                run_time=1
@ -450,7 +450,7 @@ class FeynmanFame(Scene):
        )
        joke.move_to(objects)

-        self.play(OldLaggedStart(
+        self.play(LaggedStartMap(
            DrawBorderThenFill, objects,
            lag_ratio=0.75
        ))
@ -466,7 +466,7 @@ class FeynmanFame(Scene):
        self.play(
            self.get_book_intro(books[2]),
            self.get_book_outro(books[1]),
-            OldLaggedStart(FadeOut, joke, run_time=1),
+            LaggedStartMap(FadeOut, joke, run_time=1),
            ApplyMethod(
                feynman_smile.shift, FRAME_HEIGHT * DOWN,
                remover=True
@ -1023,7 +1023,7 @@ class FeynmanElementaryQuote(Scene):
                self.play(ShowWord(nothing))
                self.wait(0.2)
                nothing.sort(lambda p: -p[0])
-                self.play(OldLaggedStart(
+                self.play(LaggedStartMap(
                    FadeOut, nothing,
                    run_time=1
                ))
@ -1133,7 +1133,7 @@ class TableOfContents(Scene):
        scale_factor = 1.2

        self.add(title)
-        self.play(OldLaggedStart(
+        self.play(LaggedStartMap(
            FadeIn, items,
            run_time=1,
            lag_ratio=0.7,
@ -1228,7 +1228,7 @@ class ShowEllipseDefiningProperty(Scene):

        self.add_foreground_mobjects(push_pins, dot)
        self.add(dot_update)
-        self.play(OldLaggedStart(
+        self.play(LaggedStartMap(
            FadeInFrom, push_pins,
            lambda m: (m, 2 * UP + LEFT),
            run_time=1,
@ -1487,11 +1487,11 @@ class GeometryProofLand(Scene):
            circle.target = letter

        self.play(
-            OldLaggedStart(MoveToTarget, circles),
+            LaggedStartMap(MoveToTarget, circles),
            run_time=2
        )
        self.add(word_outlines, circles)
-        self.play(OldLaggedStart(
+        self.play(LaggedStartMap(
            FadeIn, word_outlines,
            run_time=3,
            rate_func=there_and_back,
@ -1542,7 +1542,7 @@ class ProveEllipse(ShowEmergingEllipse, ShowEllipseDefiningProperty):

        self.add(ghost_lines, circle, lines, ep_dot)
        self.play(
-            OldLaggedStart(MoveToTarget, lines),
+            LaggedStartMap(MoveToTarget, lines),
            Animation(ep_dot),
        )
        self.play(ShowCreation(ellipse))
@ -1593,7 +1593,7 @@ class ProveEllipse(ShowEmergingEllipse, ShowEllipseDefiningProperty):
            FadeInFromDown(labels[1]),
            GrowArrow(arrows[1]),
        )
-        self.play(OldLaggedStart(
+        self.play(LaggedStartMap(
            ShowPassingFlash, ghost_lines_copy
        ))
        self.wait()
@ -1722,7 +1722,7 @@ class ProveEllipse(ShowEmergingEllipse, ShowEllipseDefiningProperty):
        P_label.next_to(P_dot, UP, SMALL_BUFF)

        self.add_foreground_mobjects(self.ellipse)
-        self.play(OldLaggedStart(Restore, lines))
+        self.play(LaggedStartMap(Restore, lines))
        self.play(
            FadeOut(to_fade),
            ghost_line.set_stroke, YELLOW, 3,
@ -2053,10 +2053,10 @@ class ProveEllipse(ShowEmergingEllipse, ShowEllipseDefiningProperty):
            line.generate_target()
            line.target.rotate(90 * DEGREES)
        self.play(
-            OldLaggedStart(FadeIn, ghost_lines),
-            OldLaggedStart(FadeIn, lines),
+            LaggedStartMap(FadeIn, ghost_lines),
+            LaggedStartMap(FadeIn, lines),
        )
-        self.play(OldLaggedStart(MoveToTarget, lines))
+        self.play(LaggedStartMap(MoveToTarget, lines))
        self.wait()

    def show_orbiting_planet(self):
@ -2124,7 +2124,7 @@ class EndOfGeometryProofiness(GeometryProofLand):
        underline.match_width(orbital_mechanics)
        underline.next_to(orbital_mechanics, DOWN, SMALL_BUFF)

-        self.play(OldLaggedStart(FadeOutAndShiftDown, geometry_word))
+        self.play(LaggedStartMap(FadeOutAndShiftDown, geometry_word))
        self.play(FadeInFromDown(orbital_mechanics))
        self.play(ShowCreation(underline))
        self.wait()
@ -2643,12 +2643,12 @@ class AngularMomentumArgument(KeplersSecondLaw):
        self.wait()
        foreground = VGroup(*self.get_mobjects())
        self.play(
-            OldLaggedStart(GrowArrow, vector_field),
+            LaggedStartMap(GrowArrow, vector_field),
            Animation(foreground)
        )
        for x in range(3):
            self.play(
-                OldLaggedStart(
+                LaggedStartMap(
                    ApplyFunction, vector_field,
                    lambda mob: (lambda m: m.scale(1.1).set_fill(opacity=1), mob),
                    rate_func=there_and_back,
@ -2847,7 +2847,7 @@ class IntroduceShapeOfVelocities(AskAboutEllipses, MovingCameraScene):

        moving_vector, moving_vector_animation = self.get_velocity_vector_and_update()

-        self.play(OldLaggedStart(
+        self.play(LaggedStartMap(
            ShowCreation, vectors,
            lag_ratio=0.2,
            run_time=3,
@ -2862,7 +2862,7 @@ class IntroduceShapeOfVelocities(AskAboutEllipses, MovingCameraScene):
        self.wait(10)
        vectors.set_fill(opacity=0.5)
        self.play(
-            OldLaggedStart(ShowCreation, vectors),
+            LaggedStartMap(ShowCreation, vectors),
            Animation(moving_vector)
        )
        self.wait(5)
@ -2910,7 +2910,7 @@ class IntroduceShapeOfVelocities(AskAboutEllipses, MovingCameraScene):
                frame.shift, frame_shift,
                run_time=2,
            ),
-            OldLaggedStart(
+            LaggedStartMap(
                MoveToTarget, vectors,
                run_time=4,
            ),
@ -3119,7 +3119,7 @@ class ShowEqualAngleSlices(IntroduceShapeOfVelocities):
            *list(map(ShowCreation, lines))
        )
        self.play(*[
-            OldLaggedStart(
+            LaggedStartMap(
                ApplyMethod, fader,
                lambda m: (m.set_fill, {"opacity": 1}),
                **kwargs
@ -3485,8 +3485,8 @@ class ShowEqualAngleSlices(IntroduceShapeOfVelocities):
        self.add(self.orbit)
        self.wait()
        self.play(
-            OldLaggedStart(ShowCreation, external_angle_lines),
-            OldLaggedStart(ShowCreation, external_angle_arcs),
+            LaggedStartMap(ShowCreation, external_angle_lines),
+            LaggedStartMap(ShowCreation, external_angle_arcs),
            Animation(difference_vectors),
        )
        self.add_foreground_mobjects(difference_vectors)
@ -3547,7 +3547,7 @@ class PonderOverOffCenterDiagram(PiCreatureScene):
        words.next_to(rect.get_top(), DOWN)

        self.play(
-            OldLaggedStart(GrowFromCenter, velocity_diagram),
+            LaggedStartMap(GrowFromCenter, velocity_diagram),
            randy.change, "pondering",
            morty.change, "confused",
        )
@ -3677,7 +3677,7 @@ class UseVelocityDiagramToDeduceCurve(ShowEqualAngleSlices):
        self.play(ApplyWave(ellipse))
        self.play(*list(map(GrowArrow, vectors)))
        self.play(
-            OldLaggedStart(
+            LaggedStartMap(
                MoveToTarget, vectors,
                lag_ratio=1,
                run_time=2
@ -3862,7 +3862,7 @@ class UseVelocityDiagramToDeduceCurve(ShowEqualAngleSlices):
        )

        self.play(
-            OldLaggedStart(MoveToTarget, vectors),
+            LaggedStartMap(MoveToTarget, vectors),
            highlighted_vector.scale, 0,
            {"about_point": root_dot.get_center()},
            Animation(highlighted_vector),
@ -3873,7 +3873,7 @@ class UseVelocityDiagramToDeduceCurve(ShowEqualAngleSlices):
        )
        self.remove(vectors, highlighted_vector)
        self.play(
-            OldLaggedStart(ShowCreation, lines),
+            LaggedStartMap(ShowCreation, lines),
            ShowCreation(highlighted_line),
            Animation(highlighted_vector),
        )
@ -4017,7 +4017,7 @@ class UseVelocityDiagramToDeduceCurve(ShowEqualAngleSlices):

        self.add(ghost_lines)
        self.play(
-            OldLaggedStart(
+            LaggedStartMap(
                MoveToTarget, lines,
                lag_ratio=0.1,
                run_time=8,
@ -4144,7 +4144,7 @@ class ShowSunVectorField(Scene):
            vector.target.set_stroke(YELLOW, 0.5)

        for x in range(3):
-            self.play(OldLaggedStart(
+            self.play(LaggedStartMap(
                MoveToTarget, vector_field,
                rate_func=there_and_back,
                lag_ratio=0.5,