def construct(self):
amount_main = CyrTex(r'\foreignlanguage{bulgarian}{1,42 лева}').scale(
3)
self.play(Write(amount_main))
self.wait()
amount_cents = CyrTex(
r'\foreignlanguage{bulgarian}{142 стотинки}').scale(3)
self.play(FadeOutAndShift(amount_main, UP),
FadeInFrom(amount_cents, DOWN))
self.wait()
all_coins = Group()
all_coins.add(Coin(1))
all_coins.add(Coin(2))
all_coins.add(Coin(5))
all_coins.add(Coin(10))
all_coins.add(Coin(20))
all_coins.add(Coin(50))
all_coins.arrange()
self.add(all_coins)
all_coins.next_to(amount_cents, DOWN, buff=LARGE_BUFF)
amount_cents_small = CyrTex(
r'\foreignlanguage{bulgarian}{142 ст.} =').scale(2)
amount_cents_small.shift(amount_cents_small.get_width() * LEFT + UP)
self.play(amount_cents.shift,
amount_cents_small.get_width() * LEFT + UP,
ReplacementTransform(amount_cents, amount_cents_small),
all_coins.to_edge, DOWN)
brace = MathTex(r'\underbrace{\qquad\qquad\qquad\qquad}').scale(
1).rotate(-PI / 2)
brace.next_to(amount_cents_small, RIGHT)
self.play(FadeIn(brace))
cents50 = all_coins[5]
cents20 = all_coins[4]
cents2 = all_coins[1]
buff = DEFAULT_MOBJECT_TO_MOBJECT_BUFFER
cents50_1 = cents50.copy()
edge = brace.get_critical_point(RIGHT) + RIGHT * 0.75
up = (cents50_1.get_height() + buff) * UP
down = (cents50_1.get_height() + buff) * DOWN
self.play(cents50_1.move_to, edge + up)
cents50_2 = cents50.copy()
self.play(cents50_2.next_to, cents50_1)
cents20_1 = cents20.copy()
self.play(cents20_1.move_to, edge)
cents20_2 = cents20.copy()
self.play(cents20_2.next_to, cents20_1)
cents2_1 = cents2.copy()
self.play(cents2_1.move_to, edge + down)
self.wait()
self.wait(10)
def construct(self):
amount_cents_small = CyrTex(
r'\foreignlanguage{bulgarian}{142 ¢} $=$').scale(2)
amount_cents_small.shift(amount_cents_small.get_width() * LEFT +
UP * 0.5)
self.add(amount_cents_small)
mo_group = Group()
for loop in range(1):
for group in groups:
self.remove(mo_group)
# self.play(FadeOut(mo_group, run_time=0.05))
mo_group = Group()
uniq, counts = numpy.unique(group, return_counts=True)
print(uniq)
first = None
for coin, count in zip(uniq, counts):
print(f"{count} x {coin}")
mo_coins = [Coin(coin) for _ in range(count)]
mo_group.add(*mo_coins)
if first:
mo_coins[0].next_to(first, DOWN)
first = mo_coins[0]
for prev, cur in zip(mo_coins, mo_coins[1:]):
cur.next_to(prev, RIGHT)
brace = Brace(mo_group, direction=LEFT)
brace2 = BraceLabel(mo_group,
r'\foreignlanguage{english}{$' +
str(len(group)) + "$ coins}",
label_constructor=CyrTex)
mo_group.add(brace, brace2)
mo_group.shift(
amount_cents_small.get_critical_point(RIGHT) -
brace.get_tip() +
X_AXIS * DEFAULT_MOBJECT_TO_MOBJECT_BUFFER)
self.add(mo_group)
# self.play(FadeIn(mo_group, run_time=0.05))
self.wait(0.2)
self.wait()
self.play(FadeOut(amount_cents_small), FadeOut(mo_group))
self.wait(10)
def construct(self):
all_coins = Group()
all_coins.add(Coin(1))
all_coins.add(Coin(5))
all_coins.add(Coin(10))
all_coins.add(Coin(20))
all_coins.add(Coin(25))
all_coins.arrange()
self.add(all_coins)
all_coins.to_edge(DOWN, buff=LARGE_BUFF)
amount_cents_small = CyrTex(
r'\foreignlanguage{bulgarian}{$40$ ст.} =').scale(2)
amount_cents_small.shift(amount_cents_small.get_width() * LEFT + UP)
self.add(amount_cents_small)
brace = MathTex(r'\underbrace{\qquad\qquad\qquad\qquad}').scale(
1).rotate(-PI / 2)
brace.next_to(amount_cents_small, RIGHT)
self.play(FadeIn(brace))
cents25 = all_coins[4]
cents10 = all_coins[2]
cents5 = all_coins[1]
buff = DEFAULT_MOBJECT_TO_MOBJECT_BUFFER
cents25_1 = cents25.copy()
edge = brace.get_critical_point(RIGHT) + RIGHT * 0.75
up = (cents25_1.get_height() + buff) * UP
down = (cents25_1.get_height() + buff) * DOWN
self.play(cents25_1.move_to, edge + up)
cents10_1 = cents10.copy()
self.play(cents10_1.move_to, edge)
cents5_1 = cents5.copy()
self.play(cents5_1.move_to, edge + down)
self.wait()
wrong_group = Group(cents25_1, cents10_1, cents5_1)
cross = Cross(wrong_group)
self.add(cross)
self.wait()
self.play(
LaggedStart(
*[FadeOut(wrong_group),
FadeOut(cross),
FadeOut(brace)],
lag_ratio=0.2))
brace = MathTex(r'\underbrace{\qquad\qquad\quad}').scale(1).rotate(
-PI / 2)
brace.next_to(amount_cents_small, RIGHT)
self.play(FadeIn(brace))
cents20 = all_coins[3]
up = (cents20.get_height() + buff) * UP * 0.5
down = (cents20.get_height() + buff) * DOWN * 0.5
cents20_1 = cents20.copy()
self.play(cents20_1.move_to, edge + up)
cents20_2 = cents20.copy()
self.play(cents20_2.move_to, edge + down)
self.wait()
self.play(*[FadeOut(x) for x in self.mobjects])
self.wait(10)
