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Refactor of confetti

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This commit is contained in:
Grant Sanderson 2017-12-13 17:17:19 -08:00
parent 7656159ab4
commit 797def9621
1 changed files with 27 additions and 25 deletions
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52
old_projects/efvgt.py
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@ -92,6 +92,30 @@ class ConfettiSpiril(Animation):
self.mobject.rotate(angle, axis = UP, about_point = start_center) self.mobject.rotate(angle, axis = UP, about_point = start_center)
self.mobject.shift(vert_shift*DOWN) self.mobject.shift(vert_shift*DOWN)
def get_confetti_animations(num_confetti_squares):
colors = [RED, YELLOW, GREEN, BLUE, PURPLE, RED]
confetti_squares = [
Square(
side_length = 0.2,
stroke_width = 0,
fill_opacity = 0.75,
fill_color = random.choice(colors),
)
for x in range(num_confetti_squares)
]
confetti_spirils = [
ConfettiSpiril(
square,
x_start = 2*random.random()*SPACE_WIDTH - SPACE_WIDTH,
rate_func = squish_rate_func(lambda t : t, a, a+0.5)
)
for a, square in zip(
np.linspace(0, 0.5, num_confetti_squares),
confetti_squares
)
]
return confetti_spirils
class Anniversary(TeacherStudentsScene): class Anniversary(TeacherStudentsScene):
CONFIG = { CONFIG = {
"num_confetti_squares" : 50, "num_confetti_squares" : 50,
@ -118,7 +142,9 @@ class Anniversary(TeacherStudentsScene):
first_video.add(formula) first_video.add(formula)
hats = self.get_party_hats() hats = self.get_party_hats()
confetti_spirils = self.get_confetti_animations() confetti_spirils = get_confetti_animations(
self.num_confetti_squares
)
self.play( self.play(
Write(title, run_time = 2), Write(title, run_time = 2),
*[ *[
@ -186,30 +212,6 @@ class Anniversary(TeacherStudentsScene):
) )
return hats return hats
def get_confetti_animations(self):
colors = [RED, YELLOW, GREEN, BLUE, PURPLE, RED]
confetti_squares = [
Square(
side_length = 0.2,
stroke_width = 0,
fill_opacity = 0.5,
fill_color = random.choice(colors),
)
for x in range(self.num_confetti_squares)
]
confetti_spirils = [
ConfettiSpiril(
square,
x_start = 2*random.random()*SPACE_WIDTH - SPACE_WIDTH,
rate_func = squish_rate_func(lambda t : t, a, a+0.5)
)
for a, square in zip(
np.linspace(0, 0.5, self.num_confetti_squares),
confetti_squares
)
]
return confetti_spirils
class HomomophismPreview(Scene): class HomomophismPreview(Scene):
def construct(self): def construct(self):
raise Exception("Meant as a place holder, not to be excecuted") raise Exception("Meant as a place holder, not to be excecuted")