3b1b-manim/topics/common_scenes.py
2017-04-21 17:40:49 -07:00

160 lines
4.5 KiB
Python

from helpers import *
from scene.scene import Scene
from animation.simple_animations import Write, DrawBorderThenFill
from animation.transform import FadeIn, FadeOut, ApplyMethod
from mobject.vectorized_mobject import VGroup
from mobject.tex_mobject import TexMobject, TextMobject
from topics.characters import Mortimer, Blink
from topics.objects import PatreonLogo
class OpeningQuote(Scene):
CONFIG = {
"quote" : [],
"quote_arg_separator" : " ",
"highlighted_quote_terms" : {},
"author" : "",
"fade_in_kwargs" : {
"submobject_mode" : "lagged_start",
"rate_func" : None,
"lag_factor" : 4,
"run_time" : 5,
},
}
def construct(self):
self.quote = self.get_quote()
self.author = self.get_author(self.quote)
self.play(FadeIn(self.quote, **self.fade_in_kwargs))
self.dither(2)
self.play(Write(self.author, run_time = 3))
self.dither()
def get_quote(self, max_width = 2*SPACE_WIDTH-1):
text_mobject_kwargs = {
"alignment" : "",
"arg_separator" : self.quote_arg_separator,
}
if isinstance(self.quote, str):
quote = TextMobject("``%s''"%self.quote.strip(), **text_mobject_kwargs)
else:
words = ["``"] + list(self.quote) + ["''"]
quote = TextMobject(*words, **text_mobject_kwargs)
##TODO, make less hacky
quote[0].shift(0.2*RIGHT)
quote[-1].shift(0.2*LEFT)
for term, color in self.highlighted_quote_terms.items():
quote.highlight_by_tex(term, color)
quote.to_edge(UP)
if quote.get_width() > max_width:
quote.scale_to_fit_width(max_width)
return quote
def get_author(self, quote):
author = TextMobject("-" + self.author)
author.next_to(quote, DOWN)
author.highlight(YELLOW)
return author
class PatreonThanks(Scene):
CONFIG = {
"specific_patrons" : [
"Ali Yahya",
"Meshal Alshammari",
"CrypticSwarm ",
"Justin Helps",
"Ankit Agarwal",
"Yu Jun",
"Shelby Doolittle",
"Dave Nicponski",
"Damion Kistler",
"Juan Benet",
"Othman Alikhan",
"Markus Persson",
"Dan Buchoff",
"Derek Dai",
"Joseph John Cox",
"Luc Ritchie",
"Nils Schneider",
"Mathew Bramson",
"Guido Gambardella",
"Jerry Ling",
"Mark Govea",
"Vecht",
"Shimin Kuang",
"Rish Kundalia",
"Achille Brighton",
"Kirk Werklund",
"Ripta Pasay",
"Felipe Diniz",
],
"patron_group_size" : 10,
"patron_scale_val" : 0.7,
}
def construct(self):
morty = Mortimer()
morty.next_to(ORIGIN, DOWN)
n_patrons = len(self.specific_patrons)
special_thanks = TextMobject("Special thanks")
special_thanks.highlight(YELLOW)
special_thanks.to_edge(UP)
patreon_logo = PatreonLogo()
patreon_logo.next_to(morty, UP, buff = MED_LARGE_BUFF)
patrons = map(TextMobject, self.specific_patrons)
num_groups = float(len(patrons)) / self.patron_group_size
proportion_range = np.linspace(0, 1, num_groups + 1)
indices = (len(patrons)*proportion_range).astype('int')
patron_groups = [
VGroup(*patrons[i:j])
for i, j in zip(indices, indices[1:])
]
for i, group in enumerate(patron_groups):
group.arrange_submobjects(DOWN, aligned_edge = LEFT)
group.scale(self.patron_scale_val)
group.to_edge(LEFT if i%2 == 0 else RIGHT)
self.play(
morty.change_mode, "gracious",
DrawBorderThenFill(patreon_logo),
)
self.play(Write(special_thanks, run_time = 1))
for i, group in enumerate(patron_groups):
anims = [
FadeIn(
group, run_time = 2,
submobject_mode = "lagged_start",
lag_factor = 4,
),
morty.look_at, group.get_top(),
]
if i >= 2:
anims.append(FadeOut(patron_groups[i-2]))
self.play(*anims)
self.play(morty.look_at, group.get_bottom())
self.play(Blink(morty))