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Small changes to retired clacks project

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This commit is contained in:
Grant Sanderson
2019-02-04 10:32:24 -08:00
parent 3b088b1284
commit b70e0a0c75
4 changed files with 65 additions and 10 deletions
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2
old_projects/clacks/all_s2_scenes.py
View File

@ -6,7 +6,7 @@ from old_projects.clacks.solution2 import position_phase_space
from old_projects.clacks.solution2 import simple_scenes
from old_projects.clacks.solution2 import wordy_scenes
OUTPUT_DIRECTORY = "clacks_solution2"
OUTPUT_DIRECTORY = "clacks/solution2"
ALL_SCENE_CLASSES = [
question.NameIntro,
block_collision_scenes.IntroducePreviousTwoVideos,

16
old_projects/clacks/question.py
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@ -1,6 +1,9 @@
from big_ol_pile_of_manim_imports import *
OUTPUT_DIRECTORY = "clacks/question"
class Block(Square):
CONFIG = {
"mass": 1,
@ -747,6 +750,19 @@ class BlocksAndWallExampleMass1e2(BlocksAndWallExample):
}
class BlocksAndWallExampleMassSameSpeedAtEnd(BlocksAndWallExample):
CONFIG = {
"sliding_blocks_config": {
"block1_config": {
"mass": 1 / np.tan(PI / 5)**2,
"velocity": -1,
"label_text": "$\\frac{1}{\\tan(\\pi / 5)^2}$ kg"
}
},
"wait_time": 25,
}
class BlocksAndWallExampleMass1e4(BlocksAndWallExample):
CONFIG = {
"sliding_blocks_config": {

3
old_projects/clacks/solution1.py
View File

@ -3,6 +3,9 @@ from old_projects.clacks.question import *
from old_projects.div_curl import ShowTwoPopulations
OUTPUT_DIRECTORY = "clacks/solution1"
class FromPuzzleToSolution(MovingCameraScene):
def construct(self):
big_rect = FullScreenFadeRectangle()

54
old_projects/clacks/solution2/simple_scenes.py
View File

@ -770,6 +770,18 @@ class ClacksSolution2Thumbnail(Scene):
self.add_scene1()
self.add_scene2()
arrow = Arrow(
self.block_word.get_top(),
self.light_dot.get_bottom(),
tip_length=0.75,
rectangular_stem_width=0.2,
color=RED,
buff=0.5,
)
arrow.add_to_back(arrow.copy().set_stroke(BLACK, 20))
self.add(arrow)
return
arrow = TexMobject("\\Updownarrow")
arrow.set_height(2)
arrow.set_color(YELLOW)
@ -785,13 +797,23 @@ class ClacksSolution2Thumbnail(Scene):
},
}
)
VGroup(*scene1.mobjects).shift(0.9 * DOWN)
group = Group(*scene1.mobjects)
group.scale(0.75, about_point=ORIGIN)
group.shift(1.5 * DOWN + 3 * LEFT)
scene1.remove(scene1.question)
self.add(*scene1.mobjects)
rect = FullScreenFadeRectangle(fill_opacity=1)
rect.shift(FRAME_HEIGHT * UP / 2)
self.add(rect)
black_rect = FullScreenFadeRectangle(fill_opacity=1)
black_rect.shift(3.5 * UP)
self.add(black_rect)
word = TextMobject("Blocks")
word.set_color(YELLOW)
word.scale(3)
word.to_corner(DR, buff=LARGE_BUFF)
word.shift(0.5 * LEFT)
self.block_word = word
self.add(word)
def add_scene2(self):
scene2 = ReflectWorldThroughMirrorNew(
@ -800,12 +822,12 @@ class ClacksSolution2Thumbnail(Scene):
"write_to_movie": False,
},
end_at_animation_number=18,
center=1.5 * UP,
# center=1.5 * DOWN,
center=ORIGIN,
)
worlds = VGroup(scene2.world, *scene2.reflected_worlds)
mirrors = VGroup(*[rw[1] for rw in worlds])
mirrors.set_stroke(width=5)
randys = VGroup(*[rw[-1] for rw in worlds])
triangles = VGroup(*[rw[0] for rw in worlds])
trajectories = VGroup(
scene2.trajectory,
@ -832,10 +854,24 @@ class ClacksSolution2Thumbnail(Scene):
beam.update(0.5)
flashes.add(beam.mobject)
dot = Dot(color=YELLOW, radius=0.1)
dot = self.light_dot = Dot(color=YELLOW, radius=0.1)
dot.move_to(flashes[0].get_left())
flashes.add(dot)
self.add(mirrors, triangles, randys)
self.add(trajectories[0].set_stroke(width=3))
self.add(triangles, mirrors)
# self.add(randys)
self.add(trajectories[0].set_stroke(width=2))
self.add(flashes)
word = TextMobject("Light beam")
word.scale(3.5)
word.set_color(YELLOW)
# word.set_stroke(BLACK, 25, background=True)
word.add_to_back(word.copy().set_stroke(
BLACK, 25,
))
word.next_to(dot, UR)
word.shift(-word.get_center()[0] * RIGHT)
word.shift(SMALL_BUFF * RIGHT)
self.light_word = word
self.add(word)